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v15

What's New inAWR Design Environment

v15

awr.com

What's New in AWR Design Environment v15AWR Design Environment v15 Edition

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LEGAL NOTICES

© 2020 Cadence Design Systems, Inc. All rights reserved.

Trademarks

• Analog Office, APLAC, AWR,AWRDesign Environment, AXIEM, Cadence, cadence.com,MicrowaveOffice, and TX-LINE are registeredtrademarks of Cadence Design Systems, Inc.

• Visual System Simulator (VSS), Analyst, and AWR Connected are trademarks of Cadence Design Systems, Inc.

• Refer to the Trademarks section at https://www.cadence.com/en_US/home/company/u-s-trademarks.html for other Cadence Design Systems,Inc. trademarks.

• Other product and company names mentioned herein are trademarks or trade names of their respective companies.

Patents

For patents covering Cadence AWR software products/technology, refer to awr.com/patents.

The information in this guide is believed to be accurate. However, no responsibility or liability is assumed by Cadence Design Systems, Inc.for its use.

Table of ContentsAWR Design Environment v15 What's New ............................................................................................ 1–1

What's New Organization ............................................................................................................. 1–1Major Feature Overview .............................................................................................................. 1–1

Known Issues for This Release .............................................................................................. 1–1VSS PHARRAY_F Block ............................................................................................. 1–1

v15 Licensing And Operating System Changes ......................................................................... 1–1Early Access Features .......................................................................................................... 1–1AWR Design Environment ................................................................................................... 1–2AWR Microwave Office and Analog Office ............................................................................. 1–2AWR Visual System Simulator (VSS) ..................................................................................... 1–2Analyst 3D Editor ............................................................................................................... 1–2

AWR Design Environment Features ....................................................................................................... 2–1Updated Equation and Variable Browser .......................................................................................... 2–1Graph Enhancements ................................................................................................................... 2–1Template Based Measurements ...................................................................................................... 2–2Linked Global Definitions and Symbols .......................................................................................... 2–3New Two-Click Windowing Mode ................................................................................................. 2–4Faster Layout Rendering .............................................................................................................. 2–4Minor Improvements ................................................................................................................... 2–5

Environment ...................................................................................................................... 2–5Equations .......................................................................................................................... 2–5Symbol Editor .................................................................................................................... 2–5User Interface .................................................................................................................... 2–5

AWR Microwave Office and Analog Office Features ................................................................................. 3–1LPF Based Units and Grids ........................................................................................................... 3–1Load Pull Improvements ............................................................................................................. 3–1Network Synthesis Wizard Improvements ........................................................................................ 3–2Stability Analysis using Loop Gain Envelope ................................................................................... 3–2APLAC Linear Subcircuit Caching ................................................................................................ 3–3Parallel and Remote Circuit Simulation ........................................................................................... 3–3Transmission Line Calculator ........................................................................................................ 3–3Optimizer Improvements .............................................................................................................. 3–4PCB Improvements ..................................................................................................................... 3–5Minimum Spacing Routing Guides ................................................................................................. 3–5Multiple Edge Selection ............................................................................................................... 3–6AXIEM Improvements ................................................................................................................ 3–6Analyst Simulator Improvements ................................................................................................... 3–7Analyst 3D Editor ....................................................................................................................... 3–8Minor Improvements ................................................................................................................... 3–8

New/Updated Examples ....................................................................................................... 3–8New Circuit Models ............................................................................................................ 3–8New Circuit Measurements ................................................................................................... 3–8

Linear Measurements .................................................................................................. 3–8Linear Stability Measurements ...................................................................................... 3–9Nonlinear Stability Measurements .................................................................................. 3–9Antenna Measurements ................................................................................................ 3–9Annotations ............................................................................................................. 3–10Network Synthesis Measurements ................................................................................ 3–10

New Scripts ..................................................................................................................... 3–10

What's New in AWR Design Environment iii

API ................................................................................................................................ 3–10Layout ............................................................................................................................ 3–10Libraries .......................................................................................................................... 3–10Measurements .................................................................................................................. 3–10Output Files ..................................................................................................................... 3–11Simulation - Analyst .......................................................................................................... 3–11User Interface ................................................................................................................... 3–11Wizard - Create New Process .............................................................................................. 3–11

AWR Visual System Simulator (VSS) Features ......................................................................................... 4–15G NR Library .......................................................................................................................... 4–1PHARRAY_F MIMO Bus Support ................................................................................................ 4–1VSS Amplifier Model Updates ...................................................................................................... 4–1Digital Pre-Distortion ................................................................................................................. 4–2Analog-to-Digital Converter Update ............................................................................................... 4–2Minor Improvements ................................................................................................................... 4–2

New/Updated Examples ....................................................................................................... 4–2New/Updated System Blocks ................................................................................................ 4–3

Digital Pre-Distortion .................................................................................................. 4–3NR 5G Blocks ............................................................................................................ 4–3Analog-to-Digital Converter ......................................................................................... 4–3Amplifier Model ......................................................................................................... 4–4Frequency Controlled Switch ........................................................................................ 4–4RF Blocks ................................................................................................................. 4–4Libraries ................................................................................................................... 4–4

New System Measurements .................................................................................................. 4–4RF Budget Measurements ............................................................................................. 4–4Annotate System Measurements .................................................................................... 4–4

Measurements .................................................................................................................... 4–4System Block Updates ......................................................................................................... 4–4

Analyst 3D Editor Features .................................................................................................................. 5–1Environment .............................................................................................................................. 5–1

Search .............................................................................................................................. 5–1Structure ................................................................................................................................... 5–1

Ribbon Changes ................................................................................................................. 5–1Solid Organization Browser Buttons ....................................................................................... 5–2Custom Cameras ................................................................................................................. 5–2Solid References ................................................................................................................. 5–2Attribute Application ........................................................................................................... 5–3Minor Improvements ........................................................................................................... 5–3

Performance .............................................................................................................. 5–3Pick Corresponding ..................................................................................................... 5–3Solid Query ............................................................................................................... 5–3Interactive Polyline/Spline Point Addition ....................................................................... 5–4

Scripting ................................................................................................................................... 5–4Min/Max Function Changes .................................................................................................. 5–4Canceling .......................................................................................................................... 5–4Failure Behavior ................................................................................................................. 5–4

Migration Issues ................................................................................................................................. 6–1AWR Design Environment v15 Specific Migration Issues ................................................................... 6–1

Licensing Changes .............................................................................................................. 6–1Operating System ............................................................................................................... 6–1

iv AWR Design Environment

Contents

HSPICE ............................................................................................................................ 6–1APLAC ............................................................................................................................ 6–1Back-Saving to Previous Versions .......................................................................................... 6–1

Measurement Variables ................................................................................................ 6–1VSS File-based Nonlinear Amplifier Blocks .................................................................... 6–1

Version-Independent Migration Issues ............................................................................................. 6–1Files Automatically Migrated ............................................................................................... 6–2

Files in Appdatacommon .............................................................................................. 6–2Files in Appdatauser .................................................................................................... 6–2

Files NOT Automatically Migrated ........................................................................................ 6–3License File ............................................................................................................... 6–3User-Defined XML Libraries ........................................................................................ 6–3

Other Concerns .................................................................................................................. 6–3Model Compatibility ................................................................................................... 6–3Multiple AWR Design Environment Versions ................................................................... 6–4Redirection ............................................................................................................... 6–4

What's New in AWR Design Environment v

Contents

vi AWR Design Environment

Contents

AWR Design Environment v15 What's NewWhat's New Organization

The AWR Design Environment v15 What's New document is organized into several sections:

• “AWR Design Environment Features” - Common improvements to all products.

• “AWR Microwave Office and Analog Office Features” - AWR Microwave Office- and Analog Office-specificimprovements.

• “AWR Visual System Simulator (VSS) Features” - AWR Visual System SimulatorTM (VSS)-specific improvements.

• “Analyst 3D Editor Features ” - Analyst 3D Editor-specific improvements.

• “Migration Issues” - Migration issues from previous versions to the current version.

Features listed in this document may also include links to videos or reference examples included in the AWR DesignEnvironment installation. Examples are listed by file name, for example: filename.emp. To find an example in the AWRDesign Environment suite, choose File > Open Example and type the example name.

Major Feature OverviewDocumentation, examples, and videos for many of the new features in this release are still in development. Visit theAnnouncing v15 page of the Knowledge Base for the most recent information regarding this release. New examples andvideos are uploaded as they become available.

Known Issues for This Release

This section is updated as known issues are fixed.

VSS PHARRAY_F Block

The VSS PHARRAY_F block now more accurately models the interaction between array elements. As a consequence,the block runs slower in v15 than in v14; Time Domain simulations, particularly those with MIMO enabled, may bemuch slower. You may want to consider retaining v14 to run those simulations.

v15 Licensing And Operating System Changes

NOTE:AWRDesign Environment v15 software no longer supportsWindows 7 andWindows Server 2008 R2 operatingsystems.

Advanced load pull now requires the LPL-100 license features. See “Licensing Changes” for details.

Early Access Features

Thank you for your interest in an AWRDesign Environment "Early Access" feature. In an effort to get customer feedbackon features we are developing, and to ensure that those features are successfully solving the full range of the intendedreal-world engineering problems, AWR is releasing select features in this "Early Access" state. These features, while inthe software, require a license to access. To use these features please contact your local AWR Sales representative toobtain documentation and the appropriate license(s). AWR strongly encourages you to provide feedback to ensure thatthese features work well and solve your engineering problems.

Early Access features in AWR Design Environment v15 include these abilities:

What's New in AWR Design Environment 1–1

https://awrcorp.com/support/help.aspx?id=120

• “Stability Analysis using Loop Gain Envelope”: New measurements for faster stability analysis.

• “Parallel and Remote Circuit Simulation”: Run multiple linear and nonlinear AWR Microwave Office simulationssimultaneously.

• “Analyst Simulator Improvements”: Run a remote Analyst simulation on a Linux LSF cluster.

AWR Design Environment

• “Updated Equation and Variable Browser”: View dependent and independent variables, with search and replacecapability.

• “Graph Enhancements”: Edit graphs faster with new graph and marker options.

• “Template Based Measurements”: Easily create test benches and compare simulation results of various combinationsof subcircuit networks.

• “Linked Global Definitions and Symbols”: Import, link, or embed Global Definition documents and symbols.

• “New Two-Click Windowing Mode”: Switch from a click and drag mouse mode to a two-click mode.

• “Faster Layout Rendering”: Turn on GPU acceleration.

AWR Microwave Office and Analog Office

• “LPF Based Units and Grids”: Support for multi-technology projects with mixed units.

• “Load Pull Improvements ”: Perform Baseband, 4th, and 5th harmonic Load Pull.

• “Network Synthesis Wizard Improvements”: Support for vendor library components.

• “APLAC Linear Subcircuit Caching”: Significantly speed up APLAC linear simulations of large designs.

• “Transmission Line Calculator”: Synthesize circuit models directly in the schematic.

• “Optimizer Improvements”: Optimizer logging and the new Kapu optimizer.

• “PCB Improvements”: Import Gerber PCB files for EM analysis.

• “Minimum Spacing Routing Guides”: Visual guides to assist routing DRC spacing-compliant iNets.

• “Multiple Edge Selection”: Expansion of edge selection in layout.

• “AXIEM Improvements”: Improved meshing and better modeling of thin layers.

AWR Visual System Simulator (VSS)

• “5G NR Library ”: TX and RX functionality for Downlink and Uplink modes.

• “PHARRAY_FMIMOBus Support ”: Use buses instead of multiplexed signals for more comprehensive RFmodeling.

• “VSS Amplifier Model Updates”: Numerous improvements to the VSS nonlinear amplifier blocks as well as the VSSlinear blocks LIN_F2 and LIN_MDIF.

• “Digital Pre-Distortion ”: Several linearization algorithms that can be used to linearize nonlinear amplifiers.

• “Analog-to-Digital Converter Update”: Model an ideal sample and hold analog-to-digital converter (ADC).

Analyst 3D Editor

• “Environment”: The Navigator and Browser now support Search operations.

• “Structure”: Structure changes include new or moved ribbon options and toolbar buttons, custom camera presets, useof solid references, and a new attribute application option.

1–2 AWR Design Environment

Major Feature Overview

• “Scripting”: Scripting changes included new cancellation and failure behavior prompts, and changes to the min andmax functions.



AWR Design Environment FeaturesThe AWRDesign Environment version 15 software includes the following new features, enhancements, and user interfacechanges. These changes are common to the AWR Microwave Office, Visual System SimulatorTM (VSS), and AnalogOffice products.

Updated Equation and Variable BrowserYou can now view Independent or All (independent and dependent) variables based on the tab selected in the VariableBrowser. When the All tab is selected, there are options to filter on element parameters or equations, and additionalcapability to search and replace text in editable cells and to navigate and update a large number of equations. Both tabsnow also support Undo and Redo operations.

Additional Information:

• Documentation: “Variable Browser”

Graph EnhancementsGraphs and markers are easier to format and control. Updates include:

• A new Rectangular - Real/Imag graph type. Measurements normally plotted on a Smith Chart or polar plot can now beplotted on a rectangular grid with independent axis control. This graph type is particularly useful for plotting load-pulldata.

-0.8 -0.6 -0.4 -0.2 0Reflection Coeff - Real

Load Pull Contours

-0.4

-0.2

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0.2

0.4

0.6

0.8

1

ReflectionCoe

ff-Imag

SwpMax61

-17SwpMin

PAE Max PLoadMax PAE Contours PLoad Contours Gamma Points

• Support for on-graph editing of axis limits, step sizes, and sweep ranges on all graphs except for 3D plots and tabulargraphs. Double-click directly on the number in a graph axis on the graph to change values.

• A new option on the Graph Options Markers tab to match marker label and legend text color to the trace color.

• Horizontal line markers are now labeled with the y-axis value and can by moved by using the Shift+Up/Down arrowkeys.

• The Add Offset Marker and Edit Marker Offset dialog boxes include a new Select Trace button to allow easy placementof the offset marker on a trace other than the one on which the reference marker is located.


• A new option on the Environment Options Project tab to hide disabled measurements from the graph legend.

• A new option on the Rectangular Plot Options Axes tab to auto limit only the Min or Max Limit for Left or Right axes,while holding the other limit constant.

• A new option on the Graph Options Format tab to hide the Sweep Min and Max values from displaying on SmithCharts and other graph types that display these values.

• The Add Optimization Goal and Add Yield Goal commands available by right-clicking on a graph legend now supportclicking and drawing a line on the graph to represent the goal value and slope, along with the start and stop range. Thestart and end points of the line automatically snap to the grid unless you hold down the Shift key. Likewise, whenediting or moving a goal line, the line snaps to the grid unless you hold down the Shift key.

• An Edit All Measurements command is added to the context menu of all graphs and the Graphsmenu for quicker access.

• An Edit Measurements command is added to the right-click context menu of column headers on tabular graphs.

• When a tabular graph contains measurements with different x-axes, a new Hide X-Axis Column command is availablewhen right-clicking on a column header, or from the Tabular Graph Options dialog box.


• Documentation: “Working with Graphs”

Template Based MeasurementsAUser folder set up with the data source group name convention can be used as a subcircuit template document. A singlemeasurement on a parent document containing subcircuit template documents can expand to individual measurementsfor all permutations of the documents inside the data source group collections. You can use template documents to quicklyset up test benches and compare combinations of networks generated by the Network Synthesis Wizard.


Template Based Measurements


• Documentation: “Template Documents”

Linked Global Definitions and SymbolsYou can now link to an external global definitions and symbols file, along with importing and exporting those documents.The API is also updated with methods to import, export, and link global definitions and symbols. In the Project Browser,linked documents display with a different icon and display the path to the linked file.


• Documentation: “Using Global Definitions”.

• Documentation: “Adding Symbols”.


Linked Global Definitions and Symbols

New Two-Click Windowing ModeAWR Design Environment software now supports a two-click entry mode for defining a draw or view window. In thismode, you click once to start a draw or view window, and click a second time to define the window size, rather thenholding down the mouse button and dragging to define the window. This mode is Off by default, and controlled on theEnvironment Options dialog boxMouse tab. Enable this mode for a more comfortable and intuitivemouse click experience.


• Documentation: “Environment Options Dialog Box: Mouse Tab ”

Faster Layout RenderingAWR Design Environment software now renders 2D and 3D high-density layouts such as modules, PCBs, and ICssignificantly faster with GPU acceleration turned On. This option is Off by default, and controlled on the EnvironmentOptions dialog box Project tab.


New Two-Click Windowing Mode

Minor ImprovementsAWR Design Environment v15 software includes the following minor new features, enhancements, and user interfacechanges:

Environment

• New Rescan File and Rescan All Files commands are added to the Project Browser context menus in the Scripting IDEto simplify reloading script files that are modified outside of the IDE.

Equations

• New amax1(x) and amin1(x) functions are added to calculate the maximum/minimum value of x per trace, whileexisting amax(x) and amin(x)functions find the singular maximum/minimum value for all traces.

• A new dec2binvect(dec,n) function is added to convert a decimal number into a binary number represented by a vectorof integers of length n, with the least significant bit at index 0. This function is useful for bit-driven switching in phaseshifter designs.

• A new erf(x) function is added to calculate the error function at x.

• A new erfc(x) function is added to calculate the complementary error function at x.

• A new expm1(x) function is added to calculate e(x-1).

• A new lgamma(x) function is added to calculate the natural logarithm of the absolute value of the gamma function atx.

• A new log1p(x) function is added to calculate the natural logarithm of (x+1).

• A new tgamma(x) function is added to calculate the value of the gamma function at x.

• A new trunc(x) function is added to round x to the nearest integer towards zero.

• Two-dimensional quantities can now be defined in equations. For example, a 2x2 matrix can be defined as

x = {{1,2},{3,4}}

• Group Properties, a new equations right-click context menu, includes options for drawing a frame around a multi-lineequation group and including a group title.

Symbol Editor

• Circuit symbols can now support filled polygons and ellipses.

User Interface

• The Tuner column visibility and order is now retained across AWR Design Environment sessions.

• The AWR Design Environment software now adds the project file to the operating system 'Recent File' list whenopening or saving a project. This list is used by many applications, for example, Outlook when attaching a file, or forthe jump list in the taskbar.


Minor Improvements


Minor Improvements

AWR Microwave Office and Analog Office FeaturesAWR Microwave Office and Analog Office version 15 software includes the following new features, enhancements,and user interface changes. The AWR Design Environment suite changes also apply to these specific products.

LPF Based Units and GridsUnits, Grid, and Default Value parameters are now specified per-LPF, enabling multi-technology projects with mixedunits. For example, a design for a chip might use units of microns for length, while the board the chip is mounted incould use units specified in mils for lengths.


• Documentation: “Determining Project Units”.

• Example: AWR_MMIC_Module.emp

Load Pull ImprovementsThe updated Load Pull script uses the newHBTUNER3 element to control impedances at up to three additional frequencies:the 4th and 5th harmonics of the fundamental, and the “baseband” frequency; F=|F1-F2| when a 2-tone input is used. Aswith the fundamental, 2nd, and 3rd harmonics, these impedances can be fixed at a specified value, or swept as part ofthe load pull analysis. Load pull measurements also accommodate these enhancements. Load pull measurements cannow also be plotted on the new Rectangular - Real/Imag graph, which plots the real and imaginary components of acomplex measurement on a rectangular grid instead of a Smith Chart or Polar graph.


• Documentation: “Harmonic Balance Lossless Tuner with Bias Tee with N Harmonics (Closed Form): HBTUNER3”.

• Documentation: “Rectangular - Real/Imag Graphs”.


• Example: Simulated_Load_Pull.emp

• Example: Swept_Load_Pull_Measurements.emp

Network Synthesis Wizard ImprovementsNetwork Synthesis Wizard improvements include:

• Added support for vendor library components including capacitors, inductors, and resistors. Vendor componentselections can be exported and imported into Network Synthesis instances.

• Added API access to vendor library components in the wizard.

• MSTEPs can now be used when Replace TLineswithMLINs is selected on the Network Synthesis dialog box Componentstab in the Topology constraints section.

• A new synthesis measurement, CompCount, can be used to set a limit for the number of unique vendor librarycomponents or lumped elements used in a matching network.

• Parameter limits for the first and last components in a matching network can now be set independently.


• Documentation: “Network Synthesis Wizard”.

Stability Analysis using Loop Gain EnvelopeStability analysis using loop gain envelope calculations can now be performed with the addition of new linear andnonlinear loop gain envelope measurements. Calculating the loop gain envelope requires far fewer computations thanloop gain calculations, resulting in a much faster stability analysis than stability analysis based on loop gain.

NOTE: This is an early access feature.


Network Synthesis Wizard Improvements


• Documentation: “Loop Gain Envelope (2 port only): LoopGainEnv”.

• Documentation: “Gain Margin for LoopGainEnv (2 port only): GainMrgnEnv”.

• Documentation: “Phase Margin for LoopGainEnv (2 port only): PhMrgnEnv”.

• Documentation: “Nonlinear Loop Gain Envelope (2 port only): NLLoopGainEnv”.

• Documentation: “Gain Margin for NLLoopGainEnv (2 port only): NLGainMrgnEnv”.

• Documentation: “Phase Margin for NLLoopGainEnv (2 port only): NLPhMrgnEnv”.

APLAC Linear Subcircuit CachingIn hierarchical designs where there are many instances of a subcircuit, APLAC linear simulation times can be significantlyreduced by using subcircuit caching.


• Documentation: “APLAC Linear Subcircuit Caching”.

Parallel and Remote Circuit SimulationParallel and remote circuit simulation enables multiple AWR Microwave Office simulations to run simultaneously onthe same computer, or remotely in parallel on multiple computers in a simulation queue. Long simulations, such ascomplex harmonic balance simulations, linear simulations involving extremely large S-parameters, parameter sweeps,load pull simulations, optimization, and yield analysis may benefit from a significant reduction in simulation time whenrun in parallel.


Transmission Line CalculatorYou can now synthesize select circuit models based on electrical specifications by right-clicking on the model andchoosing Synthesize. The physical parameters are automatically populated with the model parameters and associatedsubstrate. Supported transmission line/coupled transmission line elements are MLIN, MCLIN, SLIN, SCLIN, S1LIN,CPW1LINE, RWG_TEmn, COAX, and COAXC.


APLAC Linear Subcircuit Caching


• Documentation: “Transmission Line Calculator Dialog Box”.

Optimizer ImprovementsOptimizer improvements include the option to write an Optimizer log file and the new Kapu optimization method. Ifyou select the log file option, there is a link in the Status Window which you can click on to open the log file. TheOptimizer log file contains information on the Optimizer setup, details of each iteration, and a summary of the ten bestiterations. Analysis of the log file may provide insight into how to set up future optimization runs more efficiently. Thenew Kapu optimizer blends local optimization with high resistance to local minima. It has been shown to work well ona wide range of designs with as few as 3 to over 90 variables.



Optimizer Improvements

• Documentation: “Optimization Log”.

• Documentation: “Kapu Optimization”.

PCB ImprovementsYou can now easily import Gerber PCB data into the AWR Design Environment for EM analysis using the PCB ImportWizard. Both Gerber X1 and X2 standards are supported.

Read-in performance for projects with large PCB designs is also improved. Some examples show as much as 3Ximprovement over version v14 for layouts with many shapes (not pCells).


• Documentation: “PCB Import Wizard”.

Minimum Spacing Routing GuidesYou can now use minimum spacing routing guides and quickly route iNets as close as possible without violating DRCseparation rules. The guides, drawn with a red line, represent centerline of the iNet which is routed as close as possibleto the other shapes. Options included snapping to the guides as you route the iNet, and rejection of routing clicks insidethe guide lines. The guides are dynamically calculated based on DRC separation rules and iNet widths.


PCB Improvements


• Documentation: “Minimum Spacing Routing Guides”.

Multiple Edge SelectionLayout edge selection is updated to allow multiple edge selection. When using the Draw > Align Shapes > Shape Edgescommand with multiple edges selected, only the first edge on each shape is aligned. You can also performmore elaborateoperations on multiple selected edges using scripts.


• Documentation: “Shape Edge Selection”.

AXIEM ImprovementsAXIEM improvements include:

• Significant improvements in themesh quality with a focus on elimination of high aspect ratios. Vertical mesh aggregationalso reduces unknown counts in the z-dimension. AXIEM is now capable of meshing larger structures faster.

• Greens function improvements from improved modeling of loss boundary conditions on the top and bottom enclosure,and improved modeling of very thin layers.

• Sub-nanometer z-axis resolution of metals and dielectrics, resulting in better modeling of MIM capacitors. Previously,z-axis distances were rounded to the nearest nm.

• Addition of a true DC solver resulting in more robust solutions at 0 Hz.


Multiple Edge Selection

Analyst Simulator ImprovementsAnalyst simulator improvements include:

• You can now run Analyst simulations from AWR Design Environment software on a remote Linux cluster.


• The new linear solver introduced in v14 (dubbed HMLU) is extended to use multiple nodes on a Linux cluster, enablingsolution of substantially larger problems than can be performed on a single computer. This allows the matrix solutionat a single frequency (as part of a fast or discrete sweep) access to the total combined memory these nodes offer. Forexample, problems in excess of 100M unknowns have been solved to date on nodes each with less than half a terabyteof memory.

• Meshing is both faster and more robust, particularly on very complex geometries containing many small entities.

• You can now optionally define the mesher curvature geometry representation size in absolute units. Previously youcould only specify a value relative to the element size. This change also controls the definition of the minimum elementsize that the curved geometry representation can cause.

• Lumped RLC circuit element can now be added to Analyst arbitrary 3D EM Structures. These are implemented as anenforced frequency-dependent impedance between two points, where the RLC components can be in either a parallelor a series configuration.

• In previous Analyst versions, the imperfectly conducting metal on a wave port was replaced with perfectly conductingmetal. This was an efficiency and is appropriate in most situations. However, in cases where the losses are significant,this approximation can lead to lower accuracy solutions, particularly if a reference-plane shift is applied at the port.In v15, losses on the port are added in the same way as in the 3D problem, with the exception that modeling is notallowed inside metal on a port. Metal is converted to impedance boundary conditions applied to the metal surface, andthe calculation of the impedance value includes skin-depth effects (limited by metal thickness). The primary impactof this change is higher accuracy results for high-loss cases where a reference-plane shift is used at the port.

• Driven frequency simulations now use significantly less memory when requesting near or far field output, especiallywhen requested at many frequencies.

• Various aspects of the solver are faster, most noticeably for large point count simulations. Additionally, fast frequency(GAWE) sweeps make better use of parallel resources.

• The PML (Perfectly Matched Layer) attribute is modified for better performance.

• AMR memory estimates are improved in driven frequency (RF3p) simulations, allowing improved use of parallelresources.


Analyst Simulator Improvements

Analyst 3D EditorSee Analyst 3D Editor Features for details on new features specific to the 3D Editor.

Minor ImprovementsAWR Microwave Office v15 software includes the following minor new features, enhancements, and user interfacechanges.

New/Updated Examples

The following are new or updated AWR Design Environment examples for v15. To find an example, choose File > OpenExample and type the example name.

• AWR_MMIC_Module.emp

• LPF_Lumped.emp

• Mixed_vs_Single_Ended_Data_Files.emp

• Patch_Array_Antenna.emp

• Simulated_Load_Pull.emp

• Swept_Load_Pull_Measurements.emp

• Swept_Load_Pull_Measurements_Complete.emp

New Circuit Models

The following new circuit models are included in AWR Microwave Office v15 software.

• “Current-Controlled Current Source (Ideal): CCCS_IDEAL”

• “Current-Controlled Voltage Source (Ideal): CCVS_IDEAL”

• “Harmonic Balance Lossless Tuner with Bias Tee with N Harmonics (Closed Form): HBTUNER3 ”

• “Subcircuit Caching Control Block (APLAC Only): SUBCKT_CACHE ”

• “Ideal Transformer with Center Tap (with Finite Inductance and Leakage): XFMRTAP3 ”

• “Voltage-Controlled Current Source (Ideal): VCCS_IDEAL”

• “Voltage-Controlled Voltage Source (Ideal): VCVS_IDEAL”

New Circuit Measurements

The following new circuit measurements/annotations are included in AWR Microwave Office v15 software.

Linear Measurements

• “Common Mode Rejection Ratio for Smm: CMRR ”

• “Resistance of Series RL with Other Port Grounded”

• “Mixed Mode S-Parameters: Smm ”

• “Determinant of y-matrix: Ydet”.


Analyst 3D Editor

Linear Stability Measurements

• “Gain Margin for LoopGainEnv (2 port only): GainMrgnEnv”

• “Loop Gain Envelope (2 port only): LoopGainEnv”

• “Phase Margin for LoopGainEnv (2 port only): PhMrgnEnv”

Nonlinear Stability Measurements

• “Gain Margin for NLLoopGainEnv (2 port only): NLGainMrgnEnv”

• “Nonlinear Loop Gain Envelope (2 port only): NLLoopGainEnv”

• “Phase Margin for NLLoopGainEnv (2 port only): NLPhMrgnEnv”

Antenna Measurements

• “Radiation, Mismatch, or Total Efficiency: Efficiency”

• “Phi or Theta Angle Location of Peak E-Phi Radiation Pattern (Sweep frequency): SF_Peak_Angle_EPhi”

• “Circuit Driving Phi or Theta Angle Location of Peak E-Phi Radiation Pattern (Sweep frequency):SF_Peak_Angle_EPhi_CKT”

• “Phi or Theta Angle Location of Peak E-Theta Radiation Pattern (Sweep frequency): SF_Peak_Angle_ETheta”

• “Circuit Driving Phi or Theta Angle Location of Peak E-Theta Radiation Pattern (Sweep frequency):SF_Peak_Angle_ETheta_CKT”

• “Phi or Theta Angle Location of Peak E-LHCP Radiation Pattern (Sweep frequency): SF_Peak_Angle_LHCP”

• “Circuit Driving Phi or Theta Angle Location of Peak E-LHCP Radiation Pattern (Sweep frequency):SF_Peak_Angle_LHCP_CKT”

• “Phi or Theta Angle Location of Peak E-RHCP Radiation Pattern (Sweep frequency): SF_Peak_Angle_RHCP”

• “Circuit Driving Phi or Theta Angle Location of Peak E-RHCP Radiation Pattern (Sweep frequency):SF_Peak_Angle_RHCP_CKT”

• “Phi or Theta Angle Location of Peak Total Power Radiation Pattern (Sweep frequency): SF_Peak_Angle_TPwr”

• “Circuit Driving Phi or Theta Angle Location of Peak Total Power Radiation Pattern (Sweep frequency):SF_Peak_Angle_TPwr_CKT”

• “Peak E-Phi Radiation Pattern (Sweep frequency): SF_Peak_EPhi”

• “Circuit Driving Peak E-Phi Radiation Pattern (Sweep frequency): SF_Peak_EPhi_CKT”

• “Peak E-Theta Radiation Pattern (Sweep frequency): SF_Peak_ETheta”

• “Circuit Driving Peak E-Theta Radiation Pattern (Sweep frequency): SF_Peak_ETheta_CKT”

• “Peak E-LHCP Radiation Pattern (Sweep frequency): SF_Peak_LHCP”

• “Circuit Driving Peak E-LHCP Radiation Pattern (Sweep frequency): SF_Peak_LHCP_CKT”

• “Peak E-RHCP Radiation Pattern (Sweep frequency): SF_Peak_RHCP”

• “Circuit Driving Peak E-RHCP Radiation Pattern (Sweep frequency): SF_Peak_RHCP_CKT”

• “Peak Total Power Radiation Pattern (Sweep frequency): SF_Peak_TPwr”

• “Circuit Driving Peak Total Power Radiation Pattern (Sweep frequency): SF_Peak_TPwr_CKT”


Minor Improvements

Annotations

• “EM Document Current (Extended): ”

Network Synthesis Measurements

• “Count of Components in the Synthesized Network: CompCount ”

New Scripts

The following new scripts are included in AWR Microwave Office v15 software:

• Data > DC_Network_Setup: Add a DC (0 Hz) frequency point to data files that do not include it.

API

• A new Variables collection off of Optimizer objects allows easier access to variables and parameters that are enabledfor optimization.

• Added access to the graph marker font and text color options through the marker options collection.

• Added StackupUtil methods SetBoundaryCondition(), RemoveMaterial(), RemoveTrace()and UnMap(). AddedSetStackup2() method which associates an EM structure and its STACKUP to a StackupUtil object.

Layout

• A new Make Route Standalone command in the right-click context menu of a disassociated iNet converts the net froma disassociated route to an independent route path.

• A new Layout Mode Drawing option, Flight lines nearest pin edge connects ratlines to the nearest area pin edge, ratherthan the cell face.

• A new option on the Layout Options dialog box Layout tab, Auto-snap parameterized subcircuits snaps together elementsin parameterized subcircuits after parameter values are applied.

• Rectangles, circles and ellipses now draw animation in full color during design entry. Polygons now render fully filledduring entry when the first and last entry points overlap.

• Rectangles, circles and ellipses now have a corresponding tab in their Shape Properties dialog boxes that allows editingof their properties such as radius, width, and height.

• The radius now displays on the cursor instead of dx/dy when drawing a circle. Circles remain circular when stretched,unless you hold down the Shift key to deform the circle into an ellipse. Coordinate entry for circles now just takes avalue for radius instead of dx/dy.

Libraries

• Added component library XML support for Generalized MDIF data files.

Measurements

• The tooltip displayed for a data cursor on a graph trace for a PASSIVE measurement now indicates "Passive" or "NotPassive".

• The tooltip displayed for a data cursor on a SCIR1, SCIR2, SCIR_IJ, MU1, MU2, K, or B1 stability measurementnow provides a description of where the network is stable.


Minor Improvements

Output Files

• The NPORTF output file measurement now has two precision parameters: "Sweep Precision" and "Data Precision".These parameters allow the values for the independent variable (for example, frequency) to be written out with adifferent precision than the rest of the data.

Simulation - Analyst

• The Analyst Delta S plot in the Simulation Window now uses a logarithmic y-axis for DeltaS.

• An Export and Open in Analyst-MP option is added to the Project Browser right-click context menu for Arbitrary 3DEM structures.

User Interface

• You can now Shift- double-click on a schematic node in the Project Browser to open the Layout View of the schematic

Wizard - Create New Process

• Linetypes are now mapped correctly in the STACKUP when using multiple ground spacing values.


Minor Improvements


Minor Improvements

AWR Visual System Simulator (VSS) FeaturesThe AWR Visual System SimulatorTM (VSS) version 15 software includes the following new features, enhancements,and user interface changes. The AWR Design Environment suite changes also apply to these specific products.

5G NR LibraryThe 5GNR library contains TX and RX functionality for Downlink and Uplinkmodes. It supports FR1 and FR2 frequencybands and configurations. A number of test benches are included as examples to jump-start the component design andevaluation process with pre-configured TX and RX blocks, as well as measurements. Test Model configurations definedin the 5G NR specifications are also included in the library, along with a complete set of corresponding test benches.

Documentation:

• NR_DL_TSIGE: “NR 5G Downlink Signal Source (with encoder): NR_DL_TSIGE”

• NR_DL_RX: “NR 5G Downlink Receiver (with decoder): NR_DL_RX”

• NR_DL_TSIG: “NR 5G Downlink Signal Source: NR_DL_TSIG”

• NR_DL_RXM: “NR 5G Downlink Receiver: NR_DL_RXM”

• NR_UL_TSIGE: “NR 5G Uplink Receiver (with encoder): NR_UL_TSIGE”

• NR_UL_RX: “NR 5G Uplink Receiver (with decoder): NR_UL_RX”

• NR_UL_TSIG: “NR 5G Uplink Signal Source: NR_UL_TSIG”

• NR_UL_RXM: “NR 5G Uplink Receiver: NR_UL_RXM”

• NR_DL_TSIG_TM: “NR 5G Downlink Test Model Signal Source: NR_DL_TSIG_TM”

• NR_DL_RXM_TM: “NR 5G Downlink Test Model Receiver: NR_DL_RXM_TM”

PHARRAY_F MIMO Bus SupportThe PHARRAY_F block now supports buses. This is available when operating in MIMO mode. Buses may be used oneither or both the circuit and the radiated sides of the array assembly. The CKTSIGTYP parameter is used to configurethe circuit side and the RADSIGTYP parameter is used to configure the radiated side. The use of buses is recommendedover the use of multiplexed signals, as more comprehensive RF modeling can be performed with buses.


• Documentation: “Phased Array Assembly, Data-file based: PHARRAY_F ”

VSS Amplifier Model UpdatesUpdates to the VSS nonlinear amplifier blocks as well as the VSS linear blocks LIN_F2 and LIN_MDIF include:

• The NL_F block is replaced with the AMP_F block.

• Interpolation between independent variables is now supported for the data file blocks AMP_F, NL_MDIF, LIN_F2,and LIN_MDIF.

• NL_S support of interpolation between the independent variables of the co-simulated schematic.

• Extrapolation from the input power levels is now pinned to the lower power level.


• The algorithm used to generate the polynomial coefficients from PIn/POut curves in AMP_F/NL_F now presumesthe lowest PIn corresponds to linear gain and therefore gives more weight to matching the linear gain of the polynomialwith the gain of the lowest PIn entry.

• If the FLTRIMPL parameter of the nonlinear amps is explicitly set to "FIR" then the impedance mismatch filters nowalso use FIR filtering.

• Nonlinear amplifiers in Time Domain simulations now calculate their impedances similar to RFB/RFI. This primarilyaffects impedances when there is S12 in the nonlinearity.

• The DFTYP parameter is removed from NL_F.

Digital Pre-DistortionThe new digital pre-distortion (DPD) block offers several linearization algorithms that can be used to linearize nonlinearamplifiers. Supported models includememory polynomial, generalizedmemory polynomial, dynamic deviation reductionof 2nd order (DDR2), and look-up table. Solver choices include least-squares and damped Newton algorithms.

Analog-to-Digital Converter UpdateThe new ADC2 block implements an ideal sample and hold analog-to-digital converter (ADC). This model utilizes anadjustable threshold vector to convert input samples into digital symbols. Nonlinear distortions found in an analog-to-digitalconverter may be simulated by varying this threshold vector. ADC2 generates both, the digital and the quantized signals.


• Documentation: “Analog to Digital Converter with Digital and Quantized Outputs: ADC2”

Minor ImprovementsAWR Visual System Simulator (VSS) v15 includes the following minor new features, enhancements, and user interfacechanges:

New/Updated Examples

The following are new or updated AWR Design Environment examples for v15. To find an example, choose File > OpenExample and type the example name.

• Downlink TX test bench: 5G_NR_DL_TX_Testbench.emp

• Downlink RX test bench: 5G_NR_DL_RX_Testbench.emp

• Uplink TX test bench: 5G_NR_UL_TX_Testbench.emp

• Uplink RX test bench: 5G_NR_UL_RX_Testbench.emp

• 5G_NR_FR1_TM1_1.emp


• 5G_NR_FR1_TM2.emp

• 5G_NR_FR1_TM2a.emp


• 5G_NR_FR1_TM3_1a.emp



Digital Pre-Distortion



• 5G_NR_FR2_TM2.emp


• ADC: ADC.emp

• AMP_F_Frequency_Dependence: AMP_F_Frequency_Dependence.emp

• AMP_F_Test_Benches: AMP_F_Test_Benches.emp

• Cascade_Damage: Cascade_Damage.emp

• Chirp_Radar_System: Chirp_Radar_System.emp

• Coffee_Can_Radar: Coffee_Can_Radar.emp

• Diplexer: Diplexer.emp

• DPD_OFDM: DPD_OFDM.emp

• Filter_Bank: Filter_Bank.emp

• IF_Subsampling_ADC: IF_Subsampling_ADC.emp

• LTE_DL_FDD_RX_TestBench: LTE_DL_FDD_RX_TestBench.emp

• LTE_DL_FDD_TX_TestBench: LTE_DL_FDD_TX_TestBench.emp

• LTE_DL_TDD_TX_TestBench: LTE_DL_TDD_TX_TestBench.emp

• LTE_UL_FDD_RX_TestBench: LTE_UL_FDD_RX_TestBench.emp

• Phased_Array: Phased_Array.emp

• Phased_Array_Generator: Phased_Array_Generator.emp

• Pulse_Doppler_Radar_System: Pulse_Doppler_Radar_System.emp

• Pulse_Doppler_Radar_System_Matlab: Pulse_Doppler_Radar_System_Matlab.emp

New/Updated System Blocks

The following new system blocks are included in VSS v15.

Digital Pre-Distortion

• “Digital Predistortion Block with Feedback: DPD”

NR 5G Blocks

• “NR Downlink Frame Assembler: NR_DL_FRMASM”

• “NR Downlink Frame Deassembler: NR_DL_FRMDASM”

• “NR Uplink Frame Assembler: NR_UL_FRMASM”

• “NR Uplink Frame Deassembler: NR_UL_FRMDASM”

Analog-to-Digital Converter

• “Analog to Digital Converter with Digital and Quantized Outputs: ADC2”


Minor Improvements

Amplifier Model

AMP_F is updated to support all file formats, including all the capabilities previously included only in the NL_F block.

• “Frequency Dependent Behavioral Amplifier (File-Based): AMP_F”

Frequency Controlled Switch

RFSW_FRQ is a frequency-controlled RF switch that can be useful in building filter banks.

• “RF Signal Frequency Controlled Switch: RFSW_FRQ ”

RF Blocks

• “Physical Spec: Grounded Shield: COAX”

• “Diplexer: DIPLEXER”

Libraries

RF Blocks

• “Image Rejection Behavioral Mixer: MIXER_IRM”

New System Measurements

The following new system measurements are included in VSS v15.

RF Budget Measurements

• “Cascaded Damage Indicator: C_DAMAGE ”

Annotate System Measurements

• “Annotate VSS Characteristic Impedance: Z0 ”

Measurements

• RF Budget Analysis noise-based measurements and Time Domain spectrum-based measurements now support thespecification of a measurement noise floor.

System Block Updates

• The Element Options dialog box Filter Design tab for the VSS Filters such as BPFC and LPFB now includes a buttonthat centers the frequency range displayed using the edges of the filter.


Minor Improvements

Analyst 3D Editor FeaturesThe AnalystTM 3D Editor version 15 software includes the following new features, enhancements, and user interfacechanges. Open Help from within the 3D Editor for documentation specific to the 3D Editor.

Environment

Search

Searching is now supported in the Navigator and Browser.

You can also control the types of items that are searched.

Structure

Ribbon Changes

The Structure ribbon includes the following changes:

• The active coordinate system is now specified via radio buttons in the Structure Browser instead of on the ribbonmenu.


• The buttons to create coordinate systems and set the working plane orientation and offset have shifted right.

• The Working Plane Visibility button is moved from the ribbon to the Structure view toolbar.

Solid Organization Browser Buttons

There are two new buttons on the Browser toolbar to provide quick access to controlling solid organization. These optionsremain in the Browser Geometry node context menu as well.

Custom Cameras

You can now create Custom camera presets for use within and across projects.

Solid References

A solid reference produces another instance of a solid, maintaining the referenced solid's geometric definition. As aresult, changing any of the creation parameters of the referenced solid impacts all references. Each reference containsseveral independent parameters, however, including

• Coordinate System

• Material

• Include in Simulation

• Visible

• Mesh Control Only


Structure

These parameters allow you to uniquely position each reference (either via a coordinate system or by applying atransformation), assign a different material for each reference, and other operations.

Attribute Application

When applying an attribute to entities, some of which already contain attributes, the resulting dialog box now offers anadditional option to apply the new attribute to only entities without other attributes. This can greatly simplify the applicationof attributes in complex situations.

Minor Improvements

Performance

Actions performed on large numbers of solids (such as changing materials, excluding, and including) are now muchfaster.

Pick Corresponding

The Structure view context menu contains commands to pick items that correspond to what is already picked.

• Pick > Corresponding Solids - Picks solids associated with currently picked edges, faces, and bodies.

• Pick > Corresponding Bodies - Picks bodies associated with currently picked edges, faces, and solids.

• Pick > Corresponding Faces - Picks faces associated with currently picked edges, bodies, and solids.

• Pick > Corresponding Edges - Picks edges associated with currently picked faces, bodies, and solids.

Solid Query

Solid queries now report the number of bodies in the solid(s).


Structure

Interactive Polyline/Spline Point Addition

Points can be added to wire and sketch polylines or splines and interactively placed with the mouse.

Scripting

Min/Max Function Changes

The min and max functions now take an arbitrary number of arguments (in previous versions the limit was 2 arguments).This allows for expressions such as min(a, b, 4.2).

Canceling

If you cancel a running script that has changed the model, you are prompted to undo or keep those changes.

Failure Behavior

If a script fails and has changed the model, you are prompted to undo or keep those changes.


Scripting

Migration IssuesThe following are issues you need to address when migrating from an AWRDesign Environment v14 release to an AWRDesign Environment v15 release. Not all topics apply to every user. If you are not familiar with a topic or program featureincluded here, it probably does not apply to your use of the software. You should read about all of the issues beforedeveloping your migration strategy. You can contact <[email protected]> with any questions. The pathto the <Appdatauser> files referenced in this document is operating system dependent. To view the directory path toyour <Appdatauser> files, choose Help > Show Files/Directories to display the Directories dialog box, then double-clickthe Appdatauser folder.

AWR Design Environment v15 Specific Migration Issues

Licensing Changes

Generalized load pull measurements (measurements beginning with "G_") now require the LPL-100 Advanced LoadPull license feature. See Load Pull Licensing Change in Version 15 for details on enabling this feature.

Operating System

AWRDesign Environment v15 software no longer supportsWindows 7 andWindows Server 2008 R2 operating systems.

HSPICE

AWR no longer includes HSPICE in future purchases, maintenance renewals, or term deals. If you are using HSPICE,please work with your local Sales team to investigate alternative options.

APLAC

The default value for the Circuit Options dialog box APLAC Sim tab Stability Options > Impedance Points for StabilityEnvelope option is increased to 360. The previous default of 50 is insufficient in many cases.

Back-Saving to Previous Versions

Measurement Variables

Measurement variables, introduced in AWR Design Environment v14, are not compatible with v13 or earlier versions.Before saving a project as v13, you need to remove measurement variables from measurements.

VSS File-based Nonlinear Amplifier Blocks

The data file format for AMP_F and NL_F is expanded, and the two blocks are now interchangeable. Both blocks arebackwards-compatible, but the newly added data file tags are not. When back-saving to an older version of AWRDesignEnvironment software, see the documentation for that version for the correct data file format.

Version-Independent Migration IssuesThe items in this section address moving files and settings from one software version to another. Some of these files andsettings are automatically migrated. If the previous software version is not found, up to three major versions back aresearched. For example, if migrating to AWR Design Environment v15, AWR Design Environment 14, AWR DesignEnvironment v13, and AWR Design Environment v12 software are searched.

NOTE: Ensure that your Windows® Explorer program is set to show hidden and system files.


http://kb.awr.com/x/eIATAw

Files Automatically Migrated

The Appdatauser and Appdatacommon folders must be in their default locations for files or directories to auto-migrate.Changing their default locations would involve creating a redirect.ini file in the program directory, and is not common.

Files in Appdatacommon

The migration of Appdatacommon is triggered based on the existence of the mwoffice.ini file in the Appdatacommonfolder for the newly installed version.

• If there is an existing mwoffice.ini file, no files or folders are migrated.

• If the mwoffice.ini file does not exist, it is copied from the previous location if found.

• If the mwoffice.ini file does not exist and an older version is not found, a new file is created.

The path to each PDK is stored in the mwoffice.ini file and is available for any user of that computer. The installationlocation of foundry libraries is typically version-independent; the default installation locations are not dependent on theAWR Design Environment version. These paths are used when opening a project using a PDK or by choosing File > Newwith Library.

All additional files and directories at this location are not copied since they should not be used with the new version ofthe software.

Files in Appdatauser

The migration of Appdatauser is triggered based on the existence of the user.ini file in the Appdatauser folder for thenewly installed version. If there is an existing user.ini file, no files/folder are migrated. No existing files or folders areoverwritten.

The following files/folders are migrated:

• All .ini files located at the top level directory of Appdatauser, including user.ini. The user.ini file contains environmentsettings, custom layout modes, and other environment defaults.

• All XML files located at the top level directory of Appdatauser. This includes:

• customizations.xml - contains your hotkey settings.

• UICustomizations.xml - contains your menu settings. You can reset the menus to the AWR Design Environmentv15 defaults.

• UIDockingLayout.xml - contains settings for how different windows are docked in the AWR Design Environmentsuite.

• UIToolBarLayout.xml - contains your toolbar settings. You can reset the toolbars to the AWR Design Environmentv15 defaults.

• materialdefs.xml - There are several pre-set materials such as FR4, alumina, and GaAs available in the EM interface.If you modify these settings, the changes are stored in materialdefs.xml.

• These directories:

• scripts - Global (available in any project) Visual Basic scripts.

• models/model64 - Custom models used in the AWR Design Environment suite.

• cells/cells64 - Custom cells used in the AWR Design Environment suite.

• symbols - Custom symbol files created in the AWR Design Environment suite.


Version-Independent Migration Issues

• em_models - User-filled X-model tables.

• XML - XML libraries installed in the default location.

All additional files and directories in this location are not copied since they should not be used with the new version ofthe software.

Files NOT Automatically Migrated

License File

TARGET: License Administrators

• AWRDesign Environment v15 software requires a new license file. You can request an updated license file by sendingan email to <[email protected]> with your company name and a copy of your current license file.

• Your AWR Design Environment v15 license file is also backwards-compatible to AWR 2006. If you use a floatinglicense server, your lmgrd.exe must be version 11.14.0 or later.

User-Defined XML Libraries

TARGET: Users who have local XML libraries (anything outside of the AWR web library)

• Many users either choose to install a local copy of the XML libraries or add to the default installation with othervendor-specific XML libraries. The default location is the <Appdatauser> folder. If your XML is in this location itcan be migrated automatically (see “Files Automatically Migrated ”).

• Starting in v11, the correct location for these libraries is :\Users\UserName\AppData\Local\AWR\DesignEnvironment\V11.0\XML. There are top level folders for 3D EM Elements, Circuit Elements and System Blocks. AnyXMLfile located in these top level directories is automatically used in the AWRDesign Environment suiteWITHOUTthe need to edit files in the installation folders.

The best way to migrate these libraries is to open your current lib.xml and sys_lib.xml files in the Library folder ofyour old installation and search for any paths you added to this library (perhaps compare with v14). Find those librariesand move the top level XML file to the directory listed above to break the cycle of needing to edit these install XMLfiles.

Other Concerns

Model Compatibility

TARGET: Designers

• When model changes are identified, the project can use a model compatibility flag. When you open an old project ina newer version of the AWR Design Environment software, the simulation results from the previous version do notchange. You can change the model compatibility setting to see simulation results with the old and new modelimplementation. A dialog box similar to the following displays when you open your design in a newer version if thereare models with a compatibility setting in your design.



You can switch betweenmodel versions in the Circuit Options dialog box by choosingOptions > Default Circuit Options,then clicking the AWR Sim tab, clicking the Show Secondary button, and then selecting the desired modeling versionin Model compatibility version.

Multiple AWR Design Environment Versions

TARGET: AWR software installers

• Most users keep AWR Design Environment v14 software installed when upgrading to AWR Design Environmentv15 to ensure their designs upgrade properly before converting permanently to the latest version.

• When you install AWR Design Environment v15 software, both versions run. Uninstalling any version may result inregistry problems; therefore, when you uninstall, AWR recommends that you also repair your active installation. Oneway to repair your installation is to open the Control Panel and then click on the Apps group. Under Apps & features,locate your AWR Design Environment installation and select it. Click the Modify button to display a dialog box withoptions for repairing or uninstalling the software. Select the Repair/Modify option and follow the prompts.

Redirection

TARGET: Users of any type of file redirection (changing the default locations for any of the folders used by the AWRDesign Environment suite)

• In networked environments, some users may choose to change the default location for certain files.

• Complete information on redirection is available in the Installation Guide under "Configuring Program File Locations".If you use this capability, ensure that you make the same changes in AWR Design Environment v15 software that youset up for AWR Design Environment v14.



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