[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.6109/jicce.2020.18.4.254

Development of Four-Way Analog Beamforming Front-End Module for Hybrid Beamforming System

Cho, Young Seek (Department of Electronic Engineering, Wonkwang University)

Publication Information

Journal of information and communication convergence engineering / v.18, no.4, 2020 , pp. 254-259 More about this Journal

Abstract

Phased-array antennas comprise a demanding antenna design methodology for commercial wireless communication systems or military radar systems. In addition to these two important applications, the phased-array antennas can be used in beamforming for wireless charging. In this study, a four-way analog beamforming front-end module (FEM) for a hybrid beamforming system is developed for 2.4 GHz operation. In a hybrid beamforming scheme, an analog beamforming FEM in which the phase and amplitude of RF signal can be adjusted between the RF chain and phased-array antenna is required. With the beamforming and beam steering capability of the phased-array antennas, wireless RF power can be transmitted with high directivity to a designated receiver for wireless charging. The four-way analog beamforming FEM has a 32 dB gain dynamic range and a phase shifting range greater than 360°. The maximum output RF power of the four-way analog beamforming FEM is 40 dBm (=10 W) when combined the four individual RF paths are combined.

Keywords

Analog beamforming; Hybrid beamforming; Wireless charging; Wireless power transfer;

Citations & Related Records

Reference

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