designing magic tee using hfss
I designed a wr90 magic tee using HFSS frequency range is 8-12 GHz and the solution frequency is set to 12 GHz
but it's mismatched and the results aren't satisfying because dB(S(1,1)),dB(S(2,2)),dB(S(3,3)) are between (-5)-(-10)dB
so what I must do to get at least -15 dB on all 3 of them?
I'd be thankful if you could help me
Where is the fourth arm?
https://www.everythingrf.com/communi...is-a-magic-tee
Simultaneous match at all ports is not possible for a lossless 3 port device. That's why the magic tee has 4 ports.
Thanks for the reply
I did the 4th arm too here's the result
but still not good as it's not -15 dB yet
Your geometry with the tapers is different ... and it seems that your 4th arm isn't connecting well. Why don't you start from a standard geometry?
This reference mentions post + iris for impedance matching in the magic tee:
http://www.rfcafe.com/references/ele...-1-51-1-60.htm
same method here:
http://www.qwed.eu/QW-Modeller/Examp...hedCoupler.htm
yeah i started with the simplest design
but started to change things around when it didn't reach -15 dB
