A 5.8 GHz π -Stub Decoupling Network for Receiving Antenna Arrays in Microwave Wireless Power Transmission

Xinyuan Li, Hui Xiao, Huaiqing Zhang, Zhewei Liu and Wenxiong Peng ()
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Xinyuan Li: School of Electrical Engineering, Chongqing University, Chongqing 400044, China
Hui Xiao: School of Electrical Engineering, Chongqing University, Chongqing 400044, China
Huaiqing Zhang: School of Electrical Engineering, Chongqing University, Chongqing 400044, China
Zhewei Liu: School of Electrical Engineering, Chongqing University, Chongqing 400044, China
Wenxiong Peng: School of Electrical Engineering, Chongqing University, Chongqing 400044, China

Energies, 2022, vol. 15, issue 22, 1-13

Abstract: In this paper, a 5.8 GHz π -stub decoupling network is proposed to improve the performance of a receiving antenna array (RAA) in microwave wireless power transmission (MWPT) systems. A set of general design formulas was derived for determining the electric parameters of the required π -stubs. To validate the new technique, a π -stub decoupling network was combined with RAAs. The simulated and measured results show that the performance of the RAA is greatly improved by loading the π -stub decoupling network. In addition, a miniaturized MWPT system was built. System-level measurements indicate that the novel decoupling network enhances the receiving power of the RAA by up to 36.4%. An extended application also shows the scalability and effectiveness of the network, implying its huge potential in large-scale receiving arrays.

Keywords: antenna array; decoupling network; microwave wireless power transmission (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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