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zhangjun
Joined: 01 Apr 2008
Posts: 10
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 09 May 2008 17:16 a cpw fed port set |
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I want to set a waveport to cpw-fed antenna ,this model is the cpw part,the characteristic impedance of this cpw is nearly 50Ω,I want to get the s11 very small and the s12 to 0dB,but i don't know how to set my port ,can any one help me ,thank you very much!
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nhomuathu_hanoi
Joined: 26 Apr 2007
Posts: 96
Helped: 7
Location: Hometown
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| 10 May 2008 8:12 a cpw fed port set |
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Take a look at this topic
http://www.edaboard.com/viewtopic.php?t=157258
and download port_tutorial file to get solution for your problem
cheers!
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zhangjun
Joined: 01 Apr 2008
Posts: 10
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| 10 May 2008 8:45 a cpw fed port set |
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| thank you very much for your advice,I have download this file early.But I have not solve the prolem !My ,teacher said the waveport was not correct ,the s11 must quite small !
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nhomuathu_hanoi
Joined: 26 Apr 2007
Posts: 96
Helped: 7
Location: Hometown
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| 15 May 2008 7:36 a cpw fed port set |
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zhangjun@
After I inspected your problem, there're some more advices:
1. You should read Port_tutorial file more carefully once again.
2. Use a 2D object (Rectangular) instead of 3D object like you did for Wave_Port assignment.
3. Integration line must direct from one side ground plane to Signal line.
Let modify your structure as my recommendation. I believe you'll success.
Hope it helps
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shameemkabir
Joined: 31 Oct 2007
Posts: 270
Helped: 97
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| 15 May 2008 10:22 Re: a cpw fed port set |
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Hi zhangjun!
As nhomuathu_hanoi suggested, please learn first how to setup waveport in HFSS. I've updated your file and attached here. You requirements are fulfilled I guess.
Regards,
Shameem
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