1

Integral Equation solverEuropean UGM 2007

J. P. Eberhard

Overview

2

3

Introduction

Integral Equation solver is a Frequency-Domain solver

best suited for

Application fields

Antenna coupling & placement

Radiation pattern analysis

(RCS calculation)

4

Introduction

Is based on the Method of Moments & the Multilevel Fast Multi-pole Method

Has optimal complexity in simulation time & memory

Automatic mesh generation

MLFMM Accuracy control

Higher-orderDiscretization→ High accuracy

5

New Features for I-solver 2008

Waveguide ports

Far-field source

Lossy metal & Ohmic sheet

E- & H-Field monitors

Automatic fast RCS sweep

Distributed Computing

Fast surface meshing & NASTRAN

import

6

7

Workflow – How to use the I-solver?

Quick Start guide – 4 Steps

8

Workflow – How to use the I-solver?

Quick Start guide – Step 2

9

Workflow – How to use the I-solver?

Quick Start guide – Step 3

10

Workflow – How to use the I-solver?

Quick Start guide – Step 4

11

Workflow – How to use the I-solver?

Quick Start guide – Step 4

12

13

Typical applications

Ship & sea water (ε=80), 25 MHz

143x30x3.5m

Mono-poleantenna

Far-field

Surface current

Horn feed

17cm

Far-field

Dielectric lens (ε=2.53), 34.5 GHz

14

Typical applications

360° RCS analysis, 0.5 GHz

13mMono-static RCS(horizontal plane)1° step size

Incident plane wave direction

Plane wave

8m

Tank, 1 GHz

Far-field

Surface current

15

Conclusion

I-solver is Frequency-Domain solver

For 3D analysis of electrically large structures

Application fieldsAntenna coupling / placement

RCS calculations

Embedded in CST MICROWAVE STUDIO®