5.8 GHz 4-Channel Beamforming Tx IC for Microwave Power Transfer

Jaekyung Shin; Jongseok Bae; Hyungmo Koo; Sooncheol Bae; Jongyun Na; Hansik Oh; Hyungjin Jeon; Hoseok Jung; Young Chan Choi; Seungmin Woo; Chan Mi Song; Keum Cheol Hwang; Kang-Yoon Lee; Youngoo Yang

doi:10.1109/ACCESS.2021.3079988

IEEE Access (Jan 2021)

5.8 GHz 4-Channel Beamforming Tx IC for Microwave Power Transfer

Jaekyung Shin,
Jongseok Bae,
Hyungmo Koo,
Sooncheol Bae,
Jongyun Na,
Hansik Oh,
Hyungjin Jeon,
Hoseok Jung,
Young Chan Choi,
Seungmin Woo,
Chan Mi Song,
Keum Cheol Hwang,
Kang-Yoon Lee,
Youngoo Yang

Affiliations

Jaekyung Shin: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Jongseok Bae: ORCiD; Qualcomm Korea RFFE, Seoul, South Korea
Hyungmo Koo: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Sooncheol Bae: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Jongyun Na: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Hansik Oh: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Hyungjin Jeon: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Hoseok Jung: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Young Chan Choi: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Seungmin Woo: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Chan Mi Song: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Keum Cheol Hwang: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Kang-Yoon Lee: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea
Youngoo Yang: ORCiD; Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, South Korea

DOI: https://doi.org/10.1109/ACCESS.2021.3079988
Journal volume & issue: Vol. 9
pp. 72316 – 72325

Abstract

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The microwave power transfer (MPT) system requires a massive Tx array for building a focused radio wave to efficiently transfer power to the Rx. Beamforming IC is one of the core elements for the massive Tx array. This paper presents a 5.8 GHz 4-channel beamforming Tx IC based on a CMOS process. The beamforming Tx IC includes a resistive 4-way power splitter, 5-bit differential phase shifters, drive amplifiers, and power amplifiers. Each channel is designed to transmit a power of no less than 100 mW. To verify the Tx IC, a 16-channel beamforming Tx module based on 16 patch antennas and four 4-channel Tx ICs was designed. The module also includes a PLL, a frequency doubler, and a 4-way Wilkinson power divider. MPT experiments to verify the beamforming IC and module were carried out using the implemented 16-channel Tx module at 5.8 GHz. Received power levels of 13 dBm and 2.1 dBm were achieved at distances of 0.4 and 1.4 m, respectively. The results are almost similar to the values acquired from the calculation using the Friis equation.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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