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A question about HFSS Optimization

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zhul3

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hfss optimization

Hi guys,

First time to do the HFSS optimization to tune a dielectric filter. I set a goal for S11 in a specific frequency range and acceptable cost is set as 0. Widths of the iris are the tuning variables.

The optimization finished much faster than I expected. I thought I had a super good luck that already achieved the 0 cost accidentally. However, then I noticed that HFSS only tuned 6~7 iris dimension variables, and then stopped. The minimum cost is only 0.4.

In HFSS->Design Propoties->OPtimization, I can see the Min and Max of the tuning range for the variables, but my question is how I can set the "tuning density"? (Sorry for my English, I mean how I can make HFSS tune the dimensions by changing them little by little?)

Thanks guys, I already searched the posts relating to this topic, but couldn't find the clue. Also, could any friend send me some tutorial regarding HFSS optimation?

Appreciate any help.

Regards,
Lee
 

mtu

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Which optimizer are you using? it matters in steps.
 

zhul3

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mtu said:
Which optimizer are you using? it matters in steps.
Hi, thanks for your reply.

I was using "Quasi Newton", the other option is "pattern search" which I barely heard of.

Look forward to your further assistance.
 

sankranthinaveen

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can any one post an example how to optimize a rectangular waveguide with relative permeability as variable
 

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