ANSYS SIwave 2020

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ANSYS SIwave 2020新功能简介


2ANSYS SIwave 2020 新功能

2020 R1 – SIwave

SIwave 新功能:• EMI 新功能：EMI Xplorer

• HFSS 域(HFSS Regions)的改进

• Stackup Wizard功能

• Backdrill Wizard功能

• CMA 功能

• SIwave 求解器功能改进

• …


SIwave - PCB EMI 仿真工具

SIwave 是PCB及封装 SI/PI/EMI 仿真的重要工具

ECAD DATA

Signal integrity

Power integrity

EMI

EMS

Workflow

Return loss


SIwave EMI 扫描工具功能项- EMI Xplorer

Generic Images of

current violation type

Detailed Info of

current violation

Choose Input Spectrum used

Change/Manage Spectrums

Comments about the

current violation

Parameters of

various scenarios:

• Worst Case

• Limit

• Actual

Add custom

scenarios:

• What-If

Computed analysis

plot for various

scenarios at every

frequency from the

input spectrum

• Allows users to perform “what-if” analyses based on EMI Scanner

simulation data to improve EMI characteristics in real time


SIwave -HFSS 域(HFSS Regions )的改进

• Coax ports defined within HFSS Regions in 3D Layout maintained as

coax ports during simulation

• Default HFSS solver settings tweaked in SIwave to reduce simulation

time

• Ability to configure and

execute SIwave simulations

with parallel HFSS Regions in

HFSS 3D Layout Design


• Draw polyline which crosses traces in layout to populate W-element

export dialog

• Export W-element as well as 2D Extractor project

Select “victim” trace

Stackup Wizard 功能改进 –


Stackup Wizard 功能改进

• Export preconfigured schematics to AEDT for detailed IL/RL and

FEXT/NEXT sims


Via Backdrill 配置界面

• Backdrill information imported from ODB++ and 3D Layout

• Support for setback distances

Vias stub drilled out


ANSYS CMA 功能应用

• CMA allows users to manipulate CPMs and perform system simulations containing

cascaded models of ICs, packages and PCBs


SIwave 求解器功能改进

• Advanced coupling detection for the SIwave AC solver

• Improved coupling for data buses and differential nets

• Ability to couple parallel traces in fan-type arrangement (full 360-degree

coupling)

• Spatially dependent stack-up in SIwave

• Accurate modelling of package on board scenarios

• Available for both SI and SIwave-Icepak analysis

Old - NewNo coupling for

differential pair!

Proper coupling for

differential pair!

Old - New

Package

PCB


Q3D – CG 求解器

• Re-mesh option for Q3D CG using Ansys PRIME [Beta]

• Significantly improved condition number of system matrix

• Very smooth convergence

• Robust interprocess communication for Q3D CG

• Portable, robust, two-way communication between solver and comengine

Re-

mesh

Improved

convergenc

eQ3D

mesh Re-mesh

Capacitance


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ANSYS SIwave 2020

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