lydu
Junior Member level 3
Hi, everyone
As I known, idea sphere pattern's Directivity is 0dB. if pattern isn't sphere, the max directivity should be more than 0dB. but i simulated a simple microstrip antenna,show the efficiency >0.9,directivity<0dB.Why?
see :
lydu
As I known, idea sphere pattern's Directivity is 0dB. if pattern isn't sphere, the max directivity should be more than 0dB. but i simulated a simple microstrip antenna,show the efficiency >0.9,directivity<0dB.Why?
see :
lydu