EMPro Workshop - Module2 - EMPro Basics Version 2.0

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Module 2:

EMPro Basics

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EMPro Workshop Version 2.0

EMPro User Interface

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WorkSpace Window Project Tree: •Port/Feed

•Sensors

•Materials

•Waveforms

•Boundary

•Grid/Mesh

•Python Script

Geometry, Grid, Component, Sensor Tools

View Tools

(Under View

menu as well)

Workspace Tool Bar

Project Tree

Toggle Buttons Geometry Tools

Simulator

Toggle

Button

Basic Building Blocks


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Electro-Magnetic Simulation Flow in EMPro (1)

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CAD File Import

Geometry Data

CAD Data

Drawing in

EMPro

Material Editor

Port/Feed Setup

Waveguide Ports (only for FEM)

Internal Ports FDTD

Grid/Mesh

Geometry Modeling Grid / Meshing

FEM Mesh Setup

FDTD

FEM

Start

Port / Feed


Electro-Magnetic Simulation Flow in EMPro (2)

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Sensors Simulation Setup

FEM

FDTD

Post-Processing

Result Window

FEM

FDTD

Done


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Project Properties Editor / Application Preferences

Project Properties

• Setup EMPro project specific properties

such as display units

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Application Preferences

• Setup EMPro preferences


Viewing/Measure Tools

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Zoom to Extents = View All

Measure Tool

Field Reader

Visibility On/Off

Transparency Setup

Parts

Component

Sensor

Output

Mesh

Bounding Box

Viewing Control

“3D

View”

“2D

View”


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Instructor Demo for EMPro UI

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1. Importing CAD Files

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Importing CAD Files in EMPro

o EMPro allows to import various industry standard CAD formats

o A fast way to bring existing design geometries to EMPro simulation space

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CAD File

Import

CAD Data

Supported CAD formats


ODB++ Import in EMPro

o ODB++ is a printed circuit board manufacturing database

o EMPro can import ODB++ (from EMPro2010)

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CAD File

Import

CAD Data

Imports odb++ directory


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Lab Example: QFN (Quad Flat No-Lead) Package

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Top View

Bottom View

Board Microstrip Feed

PCB Vias from QFN to ground

Double Bonding Wires

Microstrip Line on ThinFilm Substrate

Board


Importing CAD Files

o Let’s exercise the EMPro importing capability with

QFN package example

Step1: Set the display unit to “millimeters” in “Project

Properties Editor”

Step2: Select “File / Import / CAD Files…”

Step3: Point to the directory where the SAT files

located and select them all – “~/M2 – EMPro

Basics/QFN_Sat_Files”

Step4: Click “OK”

Step5: Set the Interpret units as “millimeters” and turn

“Heal” flag on

Step6: Click “OK”

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Geometry Check After Import

o Imported objects are assembled to an assembly part with a name “Multi-

file import” and don’t have material assigned to them. They should be

renamed for a better readability of object names and assigned to certain

materials

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Warning message:

Hover on the symbol to view the message

Grey Color: No material Assigned


o Use EMPro “Materials/Select from Default Library” or “Materials/New

Material Definition” menu to copy or define material definitions

o Select from the library if available but you can create your own if

necessary

Material Definitions and Assignments

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Default Library

Select and

click “Add”

button to add


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Creating Your Own Definition Library

o Users can customize their own library for materials, geometries, etc… for

repeated use of them

o “Workspace Library Tool” allows users to add or access customized

libraries

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o Add “EMPro_Workshop_Library” from “Libraries” dialog

Using Custom Workspace Library

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Library Filter

Add/Open/Remove

Libraries

Drag and Drop

to add material

definition

Directory from EMPro

Workshop Labs


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Required Material Definitions and Assignment for

QFN Package Lab Exercise

o Materials

o Assignment: Just

drag and drop the

material to the

designated part

In this exercise, the

imported objects are

renamed and re-

assembled shown to

the right

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Drag and Drop

will assign and

change the color of

objects


2. Geometry Modeling and

Manipulation in EMPro

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Coordinate Systems in EMPro

o Global coordinate (X, Y, and Z)

X, Y, and Z based on the Global Triad

Does not change and remains the same

o Reference coordinate (U, V, and W)

Refers to the orientation and location of objects

within their native assembly 3D object

o Local coordinate (U’, V’, and W’)

It is a working coordinate system and initially the

same as the Reference Coordinate System.

It is initiated when an editing session begins

The orientation is the Orientation Triad.

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Global Triad

Orientation Triad


o If you want to reference to the global, then set the context to global

o If you want to reference to the reference coordinate, then set the context

to reference

A bit Confusing?

Let’s take an example of moving a cube

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X

Y

Z

X

Y

Z

U’

W’

U

W

V

Translated

Within an

assembly

Global

Coordinate

System

Reference

Coordinate

System

V’

Local or

Working

Coordinate

System


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Example

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Context of Local Coordinate System from Global Coordinate System View

Origin of Local Coordinate System from

Global Coordinate referenced


Setting up the Coordinate System

o Use specify orientation menu or tab from either the geometry modeling

menu or object created

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EMPro Geometry Modeling and Manipulation

o Users can also enter geometries by using EMPro drawing capabilities

o Users can also modify existing geometries which include imported

objects, for example, move, copy, rotate, and Boolean operations

o Menus are: “Create, Modify, Boolean, Patterns”

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o Some of common structures are configured as the primitives building

blocks

o These blocks are placed at the center location (0,0,0) of drawing window

Easy-of-Use Primitives Building Blocks

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“Box”

“Cylinder”

“Pyramid”

“Torus”

“Sphere”

“Cone”

“Helix”


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Standard Box Solid Modeling

o “Create../Extrude” command Makes 3D object from 2D object

Step1: Select “Create.../Extrude”

Step2: Set the orientation of the drawing plane. The default is XY plane

Step3: Draw 2D objects such as circle, rectangle, or polygons

Step4: Extrude it to make a 3D object

Step5: Name the object

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“Step2” “Step3” “Step4” “Step5”


Lab Exercise: Create a 10x10x10 [mm] cube or box

o Let’s create a 10x10x10

[mm] box on XY-plane

Step1: Select

“Create.../Extrude”

Step2: Name it “mybox”

Step3: Select the

rectangle from the shape

tool

Step4: Select (0,0) for

the lower left corner of

the box or use “Tab” to

active the coordinate

entry dialog

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“Step2”

Lab_10x10x10_Cube.ep


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Lab Exercise : Create a 10x10x10 [mm] cube or box

Continue…

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Step5: Select (10,10)

coordinate or use “Tab”

button to bring the

“Specify Position” dialog

up

While the mouse is moving

over the drawing plane, the

dX and dY (or U and V)

value will be displayed

When the dialog is used,

enter 10 mm for the width

and 10 mm for the height.

Please remember that the

space between the number

and unit is required

Step6: Click OK button


Lab Exercise : Create a 10x10x10 [mm] cube or box

Continue…

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Step7: Select the

“Extrude” tab

There are two ways to

make it a 3D object. One is

to type the extrude distance

and the other is to grab and

move the arrow in the

geometry space to change

the distance.

Step8: Enter 10 mm in the

Extrude Distance.

Step9: Click Done

The green check mark

means that there is no

problem with this object

creation.


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Simple, Isn’t It?

o Then, let’s try another way which is using the primitives building blocks

Step1: Select the “Box”

Step2: Enter “Depth”, “Height”, and “Width”, all 10 mm

Step3: Click “Insert” button

Done! Now you have just created another 10x10x10 [mm] cube

The difference of this 3D box is that the center of object is located at (0,0,0)

whereas the other is user definable, which was located at (5,5,0). However the

box can be easily moved to another location by translating it

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“Box”

Lab_10x10x10_Cube_With_3D_Library.ep


Advanced 3D Modeling Tools

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Revolve

Twist

Draft By Angle Draft By Law

Hole w/wo Draft Hole Special

“Extrude/

Advanced

Option”

“Create/Revolve


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Making Waveguides Using Advanced Modeling

Tools

o WR229 (3.3~4.9G) : a=2.29 [in] b=1.145 [in],

thickness = 0.064 [in] length = 10 [in]

Step1: Set the project display unit to “Inch”

Step2: Use “Extrude” to draw two 2D rectangular

boxes that represent the waveguide (Use Tab)

Step3: Enter 10 in for the extrude distance and make

sure “Hole Draft Type: Against Periphery”, then

click “Done”

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Lab_WR229_Waveguides.ep


Advanced Topic: Parameters

o EMPro allows any arbitrary parameters for modeling and others

Name : Name of the parameter, Ex) width, length, height

Formula : Formula, Ex) sqrt(2)

Value : Value from the formula Ex) 1.414… from the above example

Description : Comments

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“Add new

parameters” “Delete

parameters”


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Lab Exercise: Using Parameters

o Create a box with p_x, p_y, and p_z parameters that are all 10 mm

Step1: Open the parameter window

Step2: Define p_x, p_y, and p_z as shown below

Step3: Create a box but type the parameter instead a constant value

Step4: Done!

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Lab_Parameterized_Solid_Modeling.ep


Instructor Demo for Geometry Modeling

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3. Modify Existing

2D/3D Objects

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Resizing Existing 3D Objects

o EMPro remembers modeling operations applied to the object so that user

can go back to the operation and change it any time

o Example: Resize the height to 20 mm

Step1: Open Lab_10x10x10_Cube.ep project

Step2: Expand the Parts menu and double click Extrude

Step3: Go to the Extrude tab and change the Extrude Distance to 20 mm

Step4: Click Done

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Lab_10x10x10_Cube.ep


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Editing Existing Extruded 2D Object

o Double click of Extrude brings 2D drawing

space back

o Click “Select/Manipulate” Button

o Hover the mouse over the edges or corners

of rectangle, and click right mouse button to

bring up the edit/delete menu

User can delete the edges or select vertices to

edit or lock the positions

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Lab_Edit_Objects.ep


o Use “Specify Orientation” menu or tab from

either the geometry modeling menu or object

created

o Moving objects is Translating objects in

EMPro

o Translation/Rotation work in the local

coordinate system but it can be changed to

other coordinate system in the Context menu

Moving (Translate)/Rotating Objects

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“Move”

Lab_Translate_Objects.ep


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Copying/Deleting 2D/3D Objects

o Copying objects is easy in EMPro, same

process as in Windows

o Select object and use “Edit/Copy”

o Then use “Edit/Paste” under the Parts

menu

o Since the copy commend copies it onto

the same position as the one being

copied, you may need to translate it to

other position

o Delete follows the same or simple user

can use Delete key

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Boolean Operations

o Boolean operation in EMPro applies to two or multiple parts

o Invoke “Boolean…/Two Parts”

o Select blank object (the object that Boolean operation will be applied) and

tool object (the object that Boolean operation will perform) from the

Boolean operation tabs

o Select type of operation: Subtract, Union, Intersect and Chop

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Blank

Object

Tool

Object

Subtract Union

Lab_Boolean_Operations.ep


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Creating Patterns (Multiple Copies)

o Users can invoke the pattern menu either from the part itself or from the

geometry menu “Patterns…”

o Linear/Rectangular or Circular/Elliptical patterns

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Lab_Create_Patterns.ep

Linear

Pattern

Elliptical

Pattern


Advanced Modify Tools

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Chamfer Edges

Loft Faces Offset Faces

Blend Edges

Shell


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Instructor Demo for Modify Existing Objects

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Quiz:

o Coffee Break, so can we create a coffee mug?

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A Mug.ep


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4. Export/Import ADS

Projects to EMPro

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ADS to EMPro Exporter

o EMPro provides ADS to EMPro one-click exporter as an ADS design kit,

which can be found from EMPro installation directory

”EMPro Installation

Directory\data\ADS_Integration\ads_empro_export_dk.zip"

o The design kit will add a new menu selections under ADS Layout,

”FEM/Export to EMPro”

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Create a self-contained Python script

that includes design, material, and

ports setup

Opens EMPro and creates the EMPro

design including material and ports setup


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Installation/Configuration of ADS to EMPro

Exporter

o Install the design kit and edit “hpeesof.cfg” under ADS users directory to

add a configuration variable ADS_EMPROHOME shown in the sample

below

ADS_EMPROHOME = ~EMPro Installation

Directory\bin\Win32.NET2005

o This configuration variable allows users to start EMPro from ADS layout

with the menu pick “Launch EMPro and import this design”

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Lab Exercise: Export ADS Design to EMPro

o Export ADS layout design “QFN”

Step1: Open ADS project, “Lab_QFN_ADS_prj”

Step2: Open ADS layout, “QFN.dsn”

Step3: Invoke “Launch EMPro and import this design” from FEM menu

Step4: Save the design and done!

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Lab_QFN_ADS_prj


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Exporting ADS Layout to a SAT File

o ADS layout can be exported to 2D drawing files such as DXF, etc. In this

case, only metal structures (2D view) will be exported

o However the complete 3D geometries can be also exported to SAT files to

be imported into EMPro through ADS 3DEM pre-viewer (only from

ADS2009 Update1)

Define “EMPRO_SAT_MENU” environment variable and set it to “1” or “YES” in

WINDOWS or Linux

Restart ADS and launch 3DEM Previewer

Under File menu, “Write SAT Files” menu is added

Create a folder and save the files

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Importing SAT Files from ADS to EMPro

o Importing the SAT files from ADS takes the same procedures described in

the previous session

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Using Python Script Generator (1)

o From ADS2009 Update1, users can generate Python scripts for the

design that can be used with EMPro

o However this is an unsupported feature with limitations such as no

support for bondwires

o Required to setup Environment Variables

Define “MOM_MESHER_GENERATION” environment variable and set it to “2”

in WINDOWS or Linux

Define “MOM_WRITE_PROJ_PY” environment variable and set it to “TRUE” in

WINDOWS or Linux

Restart ADS

Enable “FEM/Pre-Processing/Enable”

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Using Python Script Generator (2)

Run “FEM/Pre-Processing/Precompute to New

Design” to generate a python script for the design

Click “Yes” when a question dialog is prompted

Save to a new design name

o Locate “proj.py” file under

“~/mon_dsn/project_name/emprep/”

o Bring this python script into EMPro scripting window and

run to generate the geometry drawing

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EMPro Workshop - Module2 - EMPro Basics Version 2.0

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Transcript of EMPro Workshop - Module2 - EMPro Basics Version 2.0