A Wide-Angle Pattern Diversity Antenna System for mmWave 5G Mobile Terminals

A shared ground radiator with wide angular coverage for mmWave 5G smartphones is proposed in this paper. four-element corporate-fed array conventional impedance matched power divider designed. Stepped transformers are integrated the corner most elements to achieve pattern diversity without significant compromise gain. The three-port conformal commercial antenna could be easily smartphones. All three ports’ excitations operate 28 GHz band. Radiation bandwidth of multi-port system high. gain variation from 6 11 dBi amongst ports and across operating spectrum. highest mutual coupling 10 dB, spite electrically connected structure. element has a 100°, maintaining high front-to-back ratio when respective port excited. Simulation measurement results structure illustrated detail.