How to set a cpw-fed waveport ?

[zhangjun]

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!

 

[nhomuathu_hanoi]

a cpw fed port set

Take a look at this topic

and download port_tutorial file to get solution for your problem
cheers!

 

[zhangjun]

a cpw fed port set

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 !

 

[nhomuathu_hanoi]

a cpw fed port set

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

 

[shameemkabir]

Re: a cpw fed port set

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