Planar Beam Switched Antenna Module for 5G New-Radio FR2 Applications

Beamforming technique has been the major trend for the next-generation wireless communication system to overcome the high propagation loss transmitting through the air. This paper presents a highly integrated planar switched beam antenna module for 5G new-radio (NR) application. The module consisted of 1×4 array with a Butler matrix and a single-pole-quadruple-throw (SP4T) switch. Implemented with Rogers RO3010 as the substrate, the antenna module has shown the four beam steering directions of 14°, -40°, 49°, and -16° with a 10-dB impedance bandwidth from 35 to 41 GHz. The experimental results demonstrate a great potential for the 5G NR wireless applications.