ashahclpra
Junior Member level 1
i designed a circular polarize patch antenna of patc 80×80mm sq and substrate of size 90×90mm sq at 920MHz. the inner and outer radius of co axial port is 1mm and 3.9mm ,ε=3.38 but i got gain in negative.please tell me why my gain is in negative and how it will be positive.
Thanks
Thanks