Antenna realised gain S11 link

Thread Starter

yef smith

Joined Aug 2, 2020
1,446
Hello, i got and antenna which was built is CST.
At 6.52Ghz
The directivity is 8.8dBi
the realised gain is 8.3dBi
S11 of the antenna -10.22dB.
How do i link these three parameters.
I know that realised_gain=radiation_efficiency*directivity
Power and efficiency plots shown bellow.
How do i link the S11 so i get the realised gain number?
Thanks.
1671809095877.png
1671809070323.png
 
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