ABSTRACT
This paper presents a design of planar microstrip patch antenna (MPA) with full ground plane which is able to operate at 5.5 GHz frequency with 200MHz band. The return loss at 5.5 GHz is -29.5dB for inset feed antenna. Maximum gain of this antenna is 5.7dB. Return loss is improved after introducing a pyramidal shaped defected ground plane at same frequency. Now the return loss is -36.81dB. All simulation work has been done on HFSSV10.
