ELECTRONIC AND ELECTROMECHANICAL SIMULATIONSUSING ANSOFT PRODUCTS

Juliano Fujioka Mologni

17/05/2009

ANSYS Solutions to the Electronics Industry

ANSYS Multiphysics Solutions

Electromagnetic Simulation

Mechanical Simulation

Implicit Explicit

Computational Fluid Dynamics (CFD)

Low Frequency and EM

Maxwell

Q3D

Simplorer

High Frequency

HFSS

Siwave

Designer

Nexxim

Implicit

ANSYS

Mechanical

ANSYS

Structural

ANSYS

Professional

Explicit

ANSYS AUTODYN

ANSYS

LS-Dyna

Electronics cooling

ANSYS Icepak

General CFD

ANSYS CFD

Exclusive Technology: Domain Decomposition

• Efficient solution for very large electromagnetic problems;

• Naturally parallelizable to take advantage of high-performance computing resources;

– Distributed via Message Passing Interface (MPI).

• Automatic generation of domains by mesh partitioning:

– User friendly;

– Load balance.

Distributes mesh sub-domainsto networked processors and memory

HF - HFSS

– Load balance.

Full wave IE MoM Solver

• Hybrid technique (FEM + IE MoM) to solver very

large field problems Parabolic Satellite Dish Antennas

AH64 - Helicopter

HF - HFSS

Predator @VHF 350MHz

Case: Submarine RCS and antenna

• Radar Cross Section Analysis

• Full EMAG analysis of all excitations: Antennas,

waveguides, Incident Waves, Enforced fields.

• Bounding airbox is 12.5λ x 22λ x 8λ or 2200λ3

HF - HFSS

0.2GHz VLF Antenna

Case: Missile RCS

AGM 65 Maverick Missile

HF - HFSS

• Analysis at 2, 6 and 10 GHz

2GHz: 2.3 GB in 15 minutes

6GHz: 4.8 GB in 90 minutes

10GHz: 11.1 GB, 8hr 13minutes

181 incident angles

Signal and Power Integrity

• SI – Maintain “integrity” of digital

signal from point A to point B

– High Speed Channel Design

• PI – Maintain ”integrity” of DC

power delivery to digital

components in system

– Effectively a sub-discipline of

+

-

+

-

Via Via Via

MS SL SL

Package PackageConnectorBackplane Daughter Card

HF – HFSS, Siwave, Designer

– Effectively a sub-discipline of

SI

• In combination, biggest potential

and most wide open market for

high performance simulation tools.

• SI – transient analysis

• PI – linear frequency analysis

EMI/EMC: An Effect of SI and PI

Power Integrity Signal Integrity

HF – HFSS, Siwave, Designer

EMIRFI

Case: Fields From DVD Player – Coupling SIWave/Designer and HFSSS

• Electric (SIWave/Designer) and Emag (HFSS)

coupling enables Full System Simulation

• Complete EMC/EMI Spectrum analysis with real

signals - reduces ANATEL certification timeline

and time-to-market

• Analysis of Emissions radiated by PCB high speed

traces and Sources

Full System Analysis: Radiated source fields from DVD @ 125 MHz

(PCB radiation plus external housing modeled in HFSS)

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

3m

Sp

he

re (

dB

uV

olts

)

Ansoft Corporation HFSSModel1XY Plot 1

Curve Info

3M Sphere Max E Field values

Setup1 : Sw eep1

• Radiated Emission is affected by the

external Housing

Case: Fields From DVD Player – Coupling SIWave/Designer and HFSSS

1.00 10.00 100.00 1000.00Freq [MHz]

-90.00

-80.00

-70.00

BER, Eye Diagram, Signal Integrity

Full System Model(Combining all the models

Transponder Circuitry

Realistic Environment

Tag Circuitry

Full System Field Results

• Full System TX Antenna patterns

Full System Field Results

Tag located on front of shipping container

Tag located on top of shipping container

Main lobe points in wrong direction Main lobe points in proper direction

Maxwell – Low Frequency Solution

Electromechanical devices converting- Electrical power to mechanical power as motor- Mechanical power to electrical power as generator

Simplorer – Integration Software

SimplorerSystem Design

PP := 6

ICA:

A

A

A

GAIN

A

A

A

GAIN

A

JPMSYNCIA

IB

IC

Torque JPMSYNCIA

IB

IC

Torque

D2D

RMxprtMotor Design

Q3DParasitics

ANSYS Icepak

Maxwell 2-D/3-DElectromagnetic Components

PExprtMagnetics

ANSYS MechanicalThermal/Stress

Model order Reduction

Co-simulation

Field Solution

Model Generation

Simplorer – Integration Software

ANSYS Mechanical Coupling

Ansoft Solutions

� Ansoft provides multiple techniques (IE, HPC, Domain Decomposition) to solve very large field problems.

� Complete EMAG, Signal Integrity and electric circuitry coupled solution