| Author |
Message |
sangwoo
Joined: 21 May 2007
Posts: 27
Helped: 10
|
 04 Sep 2009 8:08 How to simulate circularpolarization in CST |
|
|
|
|
Hi everyone,
I would like to ask for help. I have a problem about how to generate circular polarization (RCP and LCP) for the periodic structure as metamerials by CST. Generally, I simulate the structure by waveguide port and set boundary conditions as follows: Htan=0 in z direction, Etan=0 in y direction, and open in x direction. The propagating wave is traveling through x direction which is the left side of structure plane. Now, I study about the twisted structure, so I want to calculate circular polarization (RCP and LCP) of transmission coefficient (T_LCP and T_RCP) ,and S21&S11 too. Could you please advise and teach me how to simulate this structure?
Best regards,
Sangwoo
Last edited by sangwoo on 16 Nov 2009 7:58; edited 2 times in total |
|
| Back to top |
|
 |
Jamesanton
Joined: 10 Aug 2009
Posts: 22
Helped: 5
|
09 Sep 2009 11:01 Re: How to simulate circularpolarization in CST |
|
|
|
|
| Hai u just simulate the structure with open(addspace) in all side before that u go to far field monitor and set ur frequency and click farfiled button in there. After the simulation finished in the farfiled result field u can see the rcp and lcp automatically
|
|
| Back to top |
|
|
sangwoo
Joined: 21 May 2007
Posts: 27
Helped: 10
|
06 Nov 2009 8:16 How to simulate circularpolarization in CST |
|
|
|
|
Hi Jamesanton, I had already do following your advice, but it did not work. There are not s-parameter of RCP and LCP. It shown that because of parallel symmetry plane of waveguide port, so no far field calculation possible. Could you explain me thoroughly please?
Thanks in advance
|
|
| Back to top |
|
|
Google
AdSense
|
06 Nov 2009 8:16 Ads |
|
|
|
|
|
|
| Back to top |
|
|
pejal
Joined: 10 Nov 2009
Posts: 3
Helped: 1
Location: Malaysia
|
10 Nov 2009 7:03 How to simulate circularpolarization in CST |
|
|
|
|
hi sangwoo,
firstly, you must set the boundry condition in Open Add Space in all direction. then if its not work, might be there is problem in your port.
|
|
| Back to top |
|
|
sangwoo
Joined: 21 May 2007
Posts: 27
Helped: 10
|
16 Nov 2009 7:56 How to simulate circularpolarization in CST |
|
|
|
|
Hi all, Thanks a lot. It is quite work because it now obtains Far field results (RCP and LCP). But I'm afraid that this method will make the structure not been periodic structure. Could you suggest this and further step please?
Very thanks
|
|
| Back to top |
|
|
