A 28-GHz Fully-Passive Retro-Reflective Phased-Array Backscattering Transceiver for 5G Network with 24-GHz Beam-Steered Wireless Power Transfer

Michihiro Ide, Yuasa Keito,Kato Sena,Dongwon You,Ashbir Aviat Fadila,Jian Pang,Atsushi Shirane,Kenichi Okada

2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)（2022）

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摘要

This paper introduces a phased-array rectifier with the rotationally symmetric antenna pairs, which realize 2D beamforming with fine resolution in WPT and 28-GHz retro-reflective phased-array backscattering technique. The transceiver receives 24-GHz WPT and 28-GHz 5G signal from co-direction for Rx mode and transmits 28-GHz to retro-reflective direction for Tx mode. The 64-elements module achieves −30.1dB and −39.7dB EVM for 100-MHz 64QAM modulated signal in Tx and Rx modes, respectively.

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关键词

5th generation mobile network,phased-array,backscatter,wireless power transfer,rectifier,CMOS

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