Magic Tee - HFSS Example

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Magic Tee - HFSS Example

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hkprakash7

Joined: 22 Feb 2008
Posts: 37

27 Aug 2008 16:53 Magic Tee - HFSS Example

Hi,
I've built the HFSS example of Magic Tee. I was checking the phase information. Surprisingly I'm getting exactly contradictory results.
The phase at the Co-linear ports (2 & 4) is out-of-phase when driven by the Sigma port (3) and the phase at the co-linear ports (2 & 4) is in-phase when driven by the Delta Port (1).

I've attached the HFSS file. Please let me know why I'm getting these results...

Thanks,
-Prakash

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hkprakash7

Joined: 22 Feb 2008
Posts: 37

28 Aug 2008 14:29 Re: Magic Tee - HFSS Example

Can someone please help???

shameemkabir

Joined: 31 Oct 2007
Posts: 286
Helped: 97

29 Aug 2008 10:37 Re: Magic Tee - HFSS Example

Hi Prakash!

It is really a funny problem. I don't have any explanation. If you take a look at the E_field_vector you can see the correct phases.

Anyway, I changed the design a bit (didn't add the arms but subtract from one another) of magic-T. Now you can see correct phases.

Take a look at the attachement.

Regards,
shameemkabir

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parris

Joined: 05 Jul 2005
Posts: 18
Helped: 1

25 Sep 2008 12:15 Magic Tee - HFSS Example

Hi hkprakash7

I simulated magic-T model a month ago and met the same problem.
When I changed some sizes a little, the phase responses sometimes are correct and sometimes are wrong. I cannt explain it and ignore it.

In theory, it is impossible. I dont know what is the matter with the HFSS.

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