Phased array antenna for millimeter-wave application

Abstract

Beam-steering antenna is essential and widely used in communication system.The design of 28 GHz beam steering phased array antenna for 5G millimeterwave application presented in this communication. The objective of this research is to investigate and implement a phase shifter in a linear antenna array for angle scan. The proposed array antenna has four microstrip patch antenna elements, each feed ports are connected to phase shifter. The main mechanism of radiation is due to the excitation of element in sequence with different phase delays. The overall radiated beam can be steered to different directions depending on the initial excitation of elements. In the first, 3-D good radiation by 0° phase. In the second, good scanning performance of a range of ±10° to ±40°, acceptable side lobe level and gain of 12.1 dB are obtained.