Ansys.SIwave.v7.0.Win64 1DVD
为了避免在完成整个设计时产生的高成本，设计者必须在早期设计时就了解全波效应。仅分析SI是不够的，供电已成为日益重要的问题，而高速开关所产生的谐 振、电源/地反弹、同步开关噪声、反射及线间耦合与板间耦合等问题更使设计人员头痛不已。了解并消除这些高频信号完整性问题需要全波整板分析工 具，Siwave就是解决这类问题的最佳工具。
SIwave是一个精确的整板级电磁场全波分析工具，它采用三维电磁场全波方法分析整板或整 个封装的全波效应。对于真实复杂的PCB板或IC封装，包括多层、任意形状的电源和信号线，SIwave可仿真整个电源和地结构的谐振频率；板上放置去耦 电容的作用；改变信号层或分开供电板引入的阻抗不连续性；信号线与供电板间的噪声耦合、传输延迟、过冲和下冲、反射和振铃等时域效应；本振模和S、Z、Y 参数等频域现象。其结果可以先进的二/三维方式图形显示，并可输出Spice等效电路模型用于Spice仿真.
SIwave提供了无缝的集成设计流程，让您从标准布板工具如， Cadence Allegro、 APD、 Zuken CR-5000、 Avant! Encore等所产生的版图直接输入到SIwave中进行分析
SIwave设计流程
Ansoft信号完整性(SI)产品是电子产品研发中必不可少的设计分析工具，已广泛地应用于分析复杂的PCB板、IC封装、高性能连接器及各种信号完整 性问题。利用信号完整性仿真工具，工程师不仅可在设计早期优化产品的性能，而且在昂贵的实物模型制造之前进行检验和校准设计，真正确保设计一次成功。从而 节省研发时间和降低研制成本——将资源用到激发创新，最终加速新品上市的步伐.
 
SIwave? analyzes entire printed circuit boards (PCBs) and IC packages prevalent in modern electronic products including packages merged onto boards for complete channel analysis. The tool allows engineers to perform complete signal- and power- integrity analyses from DC to beyond 10 Gb/s. SIwave extracts frequency-dependent circuit models of signal nets and power distribution networks directly from electrical CAD layout (E-CAD) databases. These analyses aid in the identification of signal and power integrity problems and are critical to designers seeking first-pass system success. Entire design paths from package to board to package can be analyzed using a full-wave electromagnetic simulator realizing coupling effects between packages and boards that are often ignored. With the IC die network modeler, first order silicon effects can be included in the analyses for a complete channel deion. The inclusion of Apache RedHawk? die models enables analysis of dynamic switching effects.

Power Integrity analysis add-on module SIwave PI Advisor
Integrated SYZ reporter
Fringing field solver
Circuit element sensitivity analysis and plotting
Near-and Far-Field multiprocessing
Capacitor Library browsing