ADS 研讨会观后

stupid · 发表于 2011-10-14 10:05

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本帖最后由 stupid 于 2011-10-14 10:16 编辑

昨天参加了Agilent举办的ADS研讨会，不例外的，这也是一次ADS的推广活动。上午讲的全是数字设计方面的东西，由一个韩国人和印度人主讲，尤其是阿三非常挑战你的听力。

到现在，我还有印象的，是智能手机设计中，DDR对Wifi的影响，以及ADS支持FEM，FDTD，Momentum3种算法，尤其是FTDT支持GCC，也就是GPU加速，这个无疑能大大缩短仿真时间。此外，对于数模混合设计中多电源平面的分割仿真以及去耦电容对于噪声和EMI的影响也很不错。对于高速链路，IBIS-AMI在ADS中的良好支持，使得仿真有源性能，尤其是均衡器是非常有用的。至于对surface roughness 的研究，可需要大投入，需要扫描电镜和原子力显微镜，才能对铜箔表面的不同形状进行建模，这让我想到我们目前还只是对不同粗糙度铜箔对插损带来的影响进行研究，还没上升到建模的高度。

在广告活动中提到的Iphone 4 中A4的创新设计，也让人印象深刻，POP封装不止是减少体积，还能减少对射频部分的影响。ADS也在不断加强封装、SI/PI，数模混合设计方面的仿真能力，比如对bond wire 的支持，对于做QSFP+这种模块的厂商还是非常有益的。

虽然是广告，但是对于做仿真的人还是值得一听的。午餐还是非常丰盛的，中西合璧，话说混吃混喝完了，我得闪人啦，因为下午的讲座主要是射频方面的，我最想听的内容已经在上午的半懂不懂的英语中听过啦，哈哈。

没有电子讲义，有些图片，后面有时间了再补。

PS，Spice类的瞬态眼图，bit by bit 和 Statistical眼图还是非常有区别的，尤其要注意BER的仿真效率，1分钟分别是10^-3,10^-6,10^-16.

longcomeon · 发表于 2011-11-29 10:30

看不懂

mwzpcmw · 发表于 2011-11-26 00:15

很好，学习中。

amywang2000 · 发表于 2011-10-18 10:40

forevercgh · 发表于 2011-10-15 22:14

最喜欢ADS中的虚拟示波器，整个一个86100c

stupid · 发表于 2011-10-15 11:40

ADS 2011.10 Enhancements

ADS is the industry's leading electronic design automation software for RF, microwave and signal-integrity applications. ADS 2011.10 provides users with continued enhancements for RF printed circuit board, MMIC and multi-technology design, including:

A design documentation notebook that makes it easy to create and share all or selected views of schematics, layout and data displays, and generate PDF and PostScript outputs files.
The ability to more easily create native air bridges in ADS layout and the substrate editor for Momentum and finite element method 3-D EM simulation.
RF power amplifier design and analysis improvements to the Load Pull Design Guide.
An easier multi-technology EM assembly simulation setup (which comes from the ability to use a single substrate definition for both Momentum and FEM simulators), an improved user interface and a new FEM multithreaded iterative solver that delivers a 2X speed improvement.
Improved PCB interoperability stemming from a more effective transfer of PCB via Pad stacks and ODB++ import improvements.
In addition to these features, ADS 2011.10 also now supports Agilent's new 89601B Vector Signal Analysis software, and offers redriver/retimer models for the HSD channel simulator, as well as native ADS 2011 PDK documentation and a sample design kit. Agilent has also significantly improved ease of use and error detection for Desktop LVS.

EMPro 2011.11 Enhancements

Tightly integrated with Agilent's ADS, EMPro is used to create 3-D models and analyze electrical performance of packages, connectors, antennas and other RF components. The EMPro 2011.11 release builds on advances made available in 2011.07, introducing key improvements to the FEM simulator:

A fast FEM iterative solver that provides an additional 2X speed improvement (on top of the 2X speedup already realized in the 2011.07 release) for simulations that include internal ports, reflecting Agilent's ongoing commitment to fast-paced advancements in simulation technology.
User-defined passive loads capability that allows users to include ideal passive loads directly in a FEM simulation to represent matching circuits and surface-mount components. (The loads are defined in the EM setup environment, which consists of common series and parallel RLC network topologies. This capability enables accurate field visualization results and radiation patterns that take into account passive loads.)
A fast, two-dimensional port solver that simplifies FEM simulation port setup, allowing users to quickly and easily determine the number of modes, reference impedance and optimum impedance line placement.