淘宝官方店     推荐课程     在线工具     联系方式     关于我们  
 
 

微波射频仿真设计   Ansoft Designer 中文培训教程   |   HFSS视频培训教程套装

 

Agilent ADS 视频培训教程   |   CST微波工作室视频教程   |   AWR Microwave Office

          首页 >> Ansoft Designer >> Ansoft Designer在线帮助文档


Ansoft Designer / Ansys Designer 在线帮助文档:


HFSS and Planar EM Simulators >
Adding a Solution Setup >
   Adding Frequency Sweeps >
       Setting up a Full-Wave SPICE Analysis >
           Guidelines for Calculating Frequencies for a Full-Wave SPICE Analysis               


Guidelines for Calculating Frequencies for a Full-Wave SPICE Analysis

When you export S-parameter data from Designer to PSpice, HSpice, or Maxwell Spice software, you are able to perform a Full-Wave SPICE analysis. A Full-Wave SPICE analysis includes full-wave effects in a circuit simulation. If you plan to perform a Full-Wave SPICE analysis, use the Setup for Full-Wave Spice dialog box to help determine a suitable frequency sweep range for the solution - one that will capture the spectral content of a desired impulse response.

Note

The frequency sweep ranges suggested in the Setup for Full-Wave Spice dialog box are estimates. You may have a pulse with a wider frequency content and Designer’s recommended frequency sweep range may miss some of the high frequencies.

The maximum frequency of the frequency sweep range should be at least five times the inverse of the rise and fall times. If the specified frequency band is too wide, a frequency sweep may have convergence problems. If this happens, try to decrease the maximum frequency until the solution converges.

It is recommended, though not required, that the minimum frequency of the frequency sweep be less than the maximum frequency divided by the number of frequency steps. It is usually recommended to have at least 500 frequency steps. A higher number will slightly improve the Full-Wave Spice solution accuracy, but will also increase CPU and memory requirements to solve the problem. For most cases, using 1000 frequency steps provides a good trade-off between the accuracy and computational requirements.

Warning

Occasionally, Designer can fail to solve for the minimum frequency during a Discrete frequency sweep due to a failure of the port solver to converge. If this happens, try to increase the minimum frequency until the solution process completes successfully. However, the minimum frequency should be as low as possible because the low-frequency response determines the steady-state time response.




HFSS视频教学培训教程 ADS2011视频培训教程 CST微波工作室教程 Ansoft Designer 教程

                HFSS视频教程                                      ADS视频教程                               CST视频教程                           Ansoft Designer 中文教程


 

      Copyright © 2006 - 2013   微波EDA网, All Rights Reserved    业务联系:mweda@163.com