Symmetrical p-shaped slots loaded microstrip patch antenna for wideband applications

This paper presents a very compact and simple microstrip patch antenna for wideband applications. The design employs a square patch with two symmetrical π-shaped slots on it and is fed by a 50 Ω microstrip line. The proposed antenna is simulated by a full wave electromagnetic simulator IE3D, a software package of Zealand. The composite effect of integrating these techniques offers a low profile, wide bandwidth, and compact antenna element. The bandwidth is improved by using an air filled substrate between the ground plane and the radiating patch. With adjusted parameters the proposed antenna exhibits a broad impedance bandwidth (VSWR ≤ 2) of about 83.97% (1.56 GHz to 3.818 GHz).