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Automatic control of momentum post-processing

Question asked by shadi.michael on Sep 12, 2007
Latest reply on Sep 18, 2007 by ALEPEREZ

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Hello.
I have a PCB structure that I simulated in momentum, and would like to see the far field radiation patterns of this structure for different excitation signals (different amplitudes, phase and frequencies). Is there a way to sweep these excitation signals instead of specifying them by hand for every simulation?

Regards,
/Shadi Yousef

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ALEPEREZ Sep 12, 2007 6:39 AM
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There is no direct way to do it, but you can download this add-on utility:

https://edasupportweb.soco.agilent.com/portal/page?_pageid=36,39980&_dad=portal&_schema=PORTAL&id=168792&search=&cid=8895&ref=browse

This allows you to setup frequency sweeps in an AC analysis which speed up the post processing a little bit.
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shadi.michael Sep 18, 2007 6:17 AM
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Thanks.

This actually helps a bit.

However, there is a bug in the code somewhere, I tried to find it in the AEL code but I couldn't since I have no proficiency with that.

The bug is that the excitation amplitudes and phases are not filled in automatically in the radiation pattern dialog box. The problem turned out to be in the file 'proj.fff' under 'mom_dsn' folder which saves the excitation signal to be passed to the radiation pattern dialog box. At the end of each line in the file there are two extra zeros that are written and that somehow cause the automatic filling of the dialog box fails. Once I removed these 2 zeros manually, the dialog boz was able to accept the excitation voltages and phases. That was my work around.

/Shadi Yousef
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ALEPEREZ Sep 18, 2007 8:39 PM
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I have not seen this utility fail on the problems I have tried, so unfortunately, once again all I can recommend is to send in the ckt that does not correctly pass the voltage values to the FF dialog to Tech Support for debug :-/
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Automatic control of momentum post-processing

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