Slit Loaded E-Shaped Single Layer Broadband Rectangular Patch Antennas with High Gain and Low Cross Polarization

A simple single layer broadband rectangular patch antenna (RPA) having improved radiation and input performances is presented. Here, an air gap loaded E-shaped RPA with double slits on patch surface has been investigated. It reveals wide impedance bandwidth of 30% at 1.97 GHz. Also, the gain of present antenna is more than 3 dB higher than that of conventional RPA working at same frequency. Around 9.8 dBi gain is reveled from present simple single layer RMA. Notably, an excellent polarization purity of 25 dB is achieved from present RPA. The antenna efficiency of 97.8% is obtained. The IE3D simulation software based on Method of Moments (MoM) is used for simulation.