hello all,
i have designed square patch microstrip antenna at 5.8 GHz frequency using single feed...after that i have use two feed and i got the proper impedance matching at both the ports but i m bit confused with do i excite both the port same time?..actually i am getting two results for each of the port coz m exciting these separately.how to excite both the ports in a same time..i am using cst.
please help me..
You can combine the results of both ports in the post processing, it's not necessary to excite both ports simultaneously. Choose post-processing-> combine results.
dear johnjoe
thank you very much for help..
hello all,
now i am trying to calculate axial ratio vs frequency curve in template based postprocessing..if i am checking it separately at 5.8 GHz then the axial ratio is around 0.95 but at various frequency it is not giving the appropriate result..whats the problem?i am doing something wrong or there is any other method.
i will appreciate your help and time
regards,
sonia
additionl
it is also showing error message that unormalized balance is not available and radiation efficiency and gain are inaccurate
ya sure...i have obtained the curve of axial ratio vs frequency...but the error message in message window is still there..i m enclosing my all result here...
thank you
- - - Updated - - -
additional and error message is
"Unormalized balance is not available and radiation efficiency and gain are inaccurate"
About this warning of unnormalized balance: You can also excite both ports at the same time (no post-processing): Open simulation setup, select source type: Selection and edit in the excitation list your port setup. Hence, you can excite both ports at the same time without warning. Maybe your results will be fine with it.