CST Microwave Studio Training Session 1

INTRODUCTION• The powerful and easy-to-use EM

field simulation software• User friendly interface• Efficient simulation performance• Can handle multiple projects and

views at the same time

CST STUDIO SUITE• CST MWS• CST EMS• CST PS• CST DS• CST PCBS • CST CS• CST MPS• CST Micro stripes

USER INTERFACE• Creating and opening the projects •Different extensions in previous versions like *.ems, *.psf, *.mod etc.

• License Management

• Automatic Software Updates

STRUCTURE MODELING• CST MWS, CST EMS, CST PS, CST MPS•Common structure model tool

• Start the software • Overview of the user interface

structures • Create and view some simple

structures

STRUCTURE MODELING• Create a new project • Select a template for the new project •Predefined templates available to automatically set the proper default values for particular type of device under test or analysis•Change manually at any time •Customizing the predefined templates •Add new templates

STRUCTURE MODELING• Navigation tree• Essential part of the user interface showing structural elements as well as simulation results

• Context menu• Dynamically change the contents according to situation

• Drawing plane • Plane on which primitive would be drawn

• Parameter window• Displays a list of all defined parameters togather with their current values

• Message window• Displays info text like solver output

STRUCTURE MODELING• Complex structures are composed of

very simple elements so called primitives•Brick, cone, sphere, cylinder etc.

TRANSFORMATION OF OBJECTS• Translate• Mirror• Rotate• Scale• Copy• Repeat

BOOLEAN OPERATIONS • Addition • Subtraction • Insertion • Intersection• Note: The material properties of the

resultant will be the same as those of the first selected object.

SOLVERS• Transient• Frequency Domain • Eigenmode Solver • Integral Equation • Asymptotic

TRANSIENT SOLVER

• The most flexible tool that can obtain the entire broadband frequency behavior of the structure under investigation from only one single run• Efficient for most kinds of high frequency applications such as TLs, Filters, Antennas etc.

TRANSIENT SOLVER

• calculates the development of fields through time at discrete locations and at discrete time samples• calculates the transmission of energy between various ports and/or open space of the investigated structure.

APPLICATIONS• Scattering parameter matrices (s-parameter)• Electromagnetic field distributions at various frequencies

(see monitors) • Antenna radiation patterns and relevant antenna

parameters (see monitors)• Signal analysis such as rise times, cross talks etc. Including

a spice network extraction• Structure design by using the optimizer or the parameter

sweep • Time domain reflectometry• Radar cross section calculations using far-field/RCS

monitors (see far-field overview and monitors)• Simulation of dispersive materials (see material overview)

MESH GENERATION• Which Mesh is suitable

MESH GENERATION• After doing these•Model geometrically•Assigning power sources (ports)•Defining boundary conditions

• Translate the model into computer accessible format• FI method• Influence on accuracy and speed

Hexahedral Mesh • Manual• At any time, old way of working

• Automatic•Most effective way of working • Determination of the important features of the structure and the fields • Frequency range, dielectrics, metallic edges etc.

• Adaptive• Repeatedly simulating and finding the solution • Regions with high field concentration or field gradients require the mesh to be locally refined • Deviation in the results below the accuracy level, stopped