rf1008
Full Member level 2
Hi ,
I designed and simulated my antenna by SNSYS,the result is bad .
fistly, i simulated it with four ideal activation port,such as port1/2/3/4 with the same amplitude but 90 degree shift,and i could get the correct result, i.e the correct radiation pattern ,good gain(5db),good AR(0dB),and S11 is also very good.
Secondly, i simulated only my activation network and also got the good result,i.e S11 is good, four output ports have the similar amplitude and phase shift(6.1~6.8dB amplitude and near 90 degree).
At last, i simulated my antenna with above activation ports and got below results.
The gain is low and also the direction is along the negative-z ,and AR is big too.
The antenna with ideal four ports is good and the activation network is also good, but the whole antenna is bad ,pls. give me some advice and thanks a lot!!
I designed and simulated my antenna by SNSYS,the result is bad .
fistly, i simulated it with four ideal activation port,such as port1/2/3/4 with the same amplitude but 90 degree shift,and i could get the correct result, i.e the correct radiation pattern ,good gain(5db),good AR(0dB),and S11 is also very good.
Secondly, i simulated only my activation network and also got the good result,i.e S11 is good, four output ports have the similar amplitude and phase shift(6.1~6.8dB amplitude and near 90 degree).
At last, i simulated my antenna with above activation ports and got below results.
The gain is low and also the direction is along the negative-z ,and AR is big too.
The antenna with ideal four ports is good and the activation network is also good, but the whole antenna is bad ,pls. give me some advice and thanks a lot!!
Attachments
Last edited:
