A W-Band 2 2 Rectenna Array With On-Chip CMOS Switching Rectifier and On-PCB Tapered Slot Antenna for Wireless Power Transfer

被引:0
|
作者
He, Pingyang [1 ,2 ]
Zhao, Dixian [1 ,2 ]
Liu, Liang [3 ]
Xu, Jie [1 ,2 ]
Zheng, Qianglin [3 ]
Yu, Chuan [3 ]
You, Xiaohu [1 ,2 ]
机构
[1] Southeast Univ, Sch Informat Sci & Engn, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China
[2] Purple Mt Labs, Nanjing 211100, Peoples R China
[3] Chinese Acad Engn Phys CAEP, Inst Appl Elect, Sci & Technol High Power Microwave Lab, Mianyang 621900, Sichuan, Peoples R China
关键词
Rectennas; Antenna arrays; Receiving antennas; Switches; Transmitting antennas; Aperture antennas; Switching circuits; Antipodal linearly tapered slot antenna (ALTSA); body-diode effect (BDE); CMOS; millimeter wave; power conversion efficiency (PCE); rectenna; rectenna array; switching rectifier; < italic xmlns:ali="http; www; niso; org; schemas; ali; 1; 0; xmlns:mml="http; w3; 1998; Math; MathML" xmlns:xlink="http; 1999; xlink" xmlns:xsi="http; 2001; XMLSchema-instance"> W <; italic >-band; wireless power transfer; EFFICIENCY; TRANSMISSION;
D O I
10.1109/TMTT.2020.3032971
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This article presents a W-band rectenna unit that incorporates a novel CMOS switching rectifier and a print tapered slot antenna. The operation principle of the switching rectifier is analyzed. The proposed rectifier topology shows improved reliability, and it utilizes the body-diode effect (BDE) to improve power conversion efficiency (PCE). Besides, a high-gain W-band antipodal linearly tapered slot antenna is implemented on PCB to improve the overall efficiency. In order to demonstrate the utility of the proposed rectenna unit for large-scale rectenna array, a 1 x 2 (parallel) and 2 x 2 (series-parallel) rectenna arrays in 40-nm bulk CMOS technology and PCB process have been implemented. The switching rectifier achieves a peak PCE of 45.8% at 94GHz with improved reliability. Occupying only 0.0756 mm2, the overall PCEs of the rectenna unit and the 2 x 2 rectenna array are 25% and 23%, delivering 5.6- and 20-mW output dc power, respectively, at 90-mW/cm2 incident power density. The proposed rectifier and rectenna array achieve the highest PCE among recently reported W-band rectifiers and rectenna arrays with different technologies.
引用
收藏
页码:969 / 979
页数:11
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