Design & Development of Brick Wall Shaped Microstrip Miniaturized Ultra-Wide Band Patch Antenna for Fifth Generation (5G)

Abstract

In this paper a brick wall shaped microstrip line feed antenna for fifth generation (5G) applications is proposed. The bandwidth of brick wall shaped rectangular patch feed by microstrip line is enhanced by applying the technique of coupling gap on radiating patch and by using the rectangular saw-tooth oriented partial ground plane. The proposed antenna has an impedance bandwidth of 21.6-30.0 GHz which covers the higher bandwidth of 5G applications. The overall size of proposed antenna is $21\times 28\ mm^{2}$ using the low cost commercially available FR4 Substrate. The designed antenna deals with the resonance frequency of 26.15 GHz. The co and cross polarizations at the resonant frequency are observed to be omnidirectional. With 90° directivity, the cross-polarization radiation pattern is enhanced the values of co-polarization are more negative than the values of cross-polarization. The uneven slots on the ground plane help the main radiator to escape trapping by providing ideal conditions. It has radiation efficiency of 44% with the peak gain of 4.5 dB across the operating bandwidth. 3D microwave studio Computer Simulation Technology (CST) is used as simulation tool to design and analyze the antenna geometry.