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msakyuz
Joined: 01 Jul 2005
Posts: 14
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 20 Nov 2005 14:57 How to improve simulation and make it to converge in HFSS |
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Hi everybody,
I have recently conducted a series of simulations in HFSS to have backward wave characteristics of Jerusalem Cross FSS layer. But unfortunately I can not have any converged results even if I have logically true results.
My configuration is as follows:
Sweep: 0.2GHz to 27GHz with 0.2GHz
Solution Freq: 27 GHz
Maximum # of passes: 10
Maximum delta per pass: 0.002
Do Lambda Refinement: Checked Target: 0.3333
Refinement Per Pass 20%
Minimum # of passes: 10
Minimum # of converged passes: 1
It seems like there is not even one converged pass!
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20 Nov 2005 14:57 Ads |
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borich_03
Joined: 07 Oct 2003
Posts: 145
Helped: 14
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24 Nov 2005 7:42 Re: How to improve simulation and make it to converge in HFS |
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Try to set:
Maximum delta per pass: 0.02;
Refinement Per Pass 30%;
Do Lambda Refinement: Checked Target: 0.1.
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flyflyhigh
Joined: 23 Oct 2004
Posts: 35
Helped: 6
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24 Nov 2005 14:08 How to improve simulation and make it to converge in HFSS |
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| I think you can try manual mesh to improve the speed of convergence.
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msakyuz
Joined: 01 Jul 2005
Posts: 14
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25 Nov 2005 16:02 Re: How to improve simulation and make it to converge in HFS |
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| How to adjust meshing for my purpose, I cant get it very much?
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msakyuz
Joined: 01 Jul 2005
Posts: 14
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28 Nov 2005 20:21 Re: How to improve simulation and make it to converge in HFS |
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| borich_03 wrote: |
Try to set:
Maximum delta per pass: 0.02;
Refinement Per Pass 30%;
Do Lambda Refinement: Checked Target: 0.1. |
Thanks borich but your configuration is also "NOT CONVERGED!"
I am tired of this, meshing manually can really help?
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mahdithdn
Joined: 18 Aug 2004
Posts: 101
Helped: 13
Location: Iran
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29 Nov 2005 8:23 How to improve simulation and make it to converge in HFSS |
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Hi,
1- I have the same problem when analysing microstrip p(at)tches. the reason of my problem was that because of radiation boundary condition the resaults converge very late (after 20 passes), but i had sett maximum of passes less than ten.
so I propose
change maximum of passes higher that 20, max delta per passe about 0.03 and refinement per passes about 10%.
2- in this condition if again solution don't convege, please send us result of "delta per pass" for all passes.
hope to sacceed.
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borich_03
Joined: 07 Oct 2003
Posts: 145
Helped: 14
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29 Nov 2005 12:19 Re: How to improve simulation and make it to converge in HFS |
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| msakyuz wrote: |
| borich_03 wrote: |
Try to set:
Maximum delta per pass: 0.02;
Refinement Per Pass 30%;
Do Lambda Refinement: Checked Target: 0.1. |
Thanks borich but your configuration is also "NOT CONVERGED!"
I am tired of this, meshing manually can really help? |
OK! Then you need to increase the maximum of passes up to 20 and set Refinement Per Pass - 40%.
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