Introduction to antenna and near-field simulation in CST ...

IEEE Communications Society Portugal Chapter Lisbon, IT, 22 March 2010

Introduction to antenna and near-field simulation in CST Microwave Studio?

software

Jorge R. Costa Jerzy Guterman

? 2005, it - instituto de telecomunica??es. Todos os direitos reservados.

CST Design Environment

3D EM simulation of high frequency problems

Signal and power integrity and EMC/EMI

analysis on printed circuit boards

Analysis and design of static and low frequency EM applications

Simulation of free moving charged particles

"Circuit tool" which combine results from other CST simulators

Signal and power integrity and EMC/EMI analysis of cable harnesses

IEEE Communications Society Portugal Chapter

2

Lisbon, IT, 22 March 2010

CST MWS Simulation Method

FIT: Finite Integration Technique

Maxwell Equations

S

ur uur E dl = -

ur uur

S

Br t

uur dS

D dS = dV

V

V

S

uur H

uur dl

=

urS

Dr uurt

+

r J

uur dS

B dS = 0

V

Maxwell Grid Equations

Ce = - d b dt

S% d = q

C% h = d d + j dt

Sb = 0

Calculation

Domain

Grid

S

ur E

uur dl

=

- S

Br t

uur dS

ek

el

bn e j

ei

ei

+ ej

- ek

- el

=

-

d dt

bn

Ce = - d b dt

ei

[11 4142-144-31]

C

e

j

{ eekl

=

-

d dt

[{ bn ]

b

e

IEEE Communications Society Portugal Chapter

3

Lisbon, IT, 22 March 2010

CST MWS Transient Solver

Material Equations

r Dr

=

r Er

B=H

r r uur

J = E + Js

d = Me b = Mh j = Me + js

Transient Solver

hi+1 = hi - t M-1 Cei+1 2

ei+3

2

=

ei+1

2

+

t

M

-1

C% hi+1

-

ji+1

t

hi

ei+1 2

hi+1

ei+3 2

IEEE Communications Society Portugal Chapter

4

Lisbon, IT, 22 March 2010

CST MWS User Interface

Project type selection (environment parameters)

Navigation Tree

Drawing Plane

Variables List

IEEE Communications Society Portugal Chapter

5

Lisbon, IT, 22 March 2010

Project Messages Windows

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