Actually, the new Polar tools are pretty good at estimating impedance over
frequency, some of the most popular EDA tools that you may have been using are
horrid, however. The data was taken using our Channel Modeling platforms
and speaks to the necessity of careful benchmarking even an EDA package that
costs upwards of $100K.
As Ryan stated, we are also using Simbeor due its cost/performance and accurate
loss modeling.
- Al
Products for the Signal Integrity Practitioner
Alfred P. Neves
Chief Technologist
Office: 503-679-2429
www.wildrivertech.com <http://www.wildrivertech.com/>
2015 Best In Design&Test Finalist
On Apr 7, 2017, at 4:26 PM, Randy Dawson <rdawson16@xxxxxxxxxxx> wrote:
I am looking for SI articles on this and not finding much. I have heard from
a few engineers that impedance calculators (Polar) are not so accurate. I am
also reading that I should expect some attenuation GHz frequencies. I am
forced into crosshatch vs solid due to thermal issues.
I do have the Sigrity field solver and will experiment and let you know what
I find.
What are you're experiences with this?
Randy
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