A question about HFSS Optimization

[zhul3]

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

 

[zhul3]

hfss tuning

Anyone knows?

 

[mtu]

Which optimizer are you using? it matters in steps.

 

[zhul3]

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]

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