Rectifier Circuit using High-Impedance Feedback Line for Microwave Wireless Power Transfer Systems

Seiya MIZUNO; Ryosuke KASHIMURA; Tomohiro SEKI; Maki ARAI; Hiroshi OKAZAKI; Yasunori SUZUKI

doi:10.1587/transele.2021MMP0009

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Rectifier Circuit using High-Impedance Feedback Line for Microwave Wireless Power Transfer Systems

Seiya MIZUNO, Ryosuke KASHIMURA, Tomohiro SEKI, Maki ARAI, Hiroshi OKAZAKI, Yasunori SUZUKI

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Summary :

Research on wireless power transmission technology is being actively conducted, and studies on spatial transmission methods such as SSPS are currently underway for applications such as power transfer to the upper part of steel towers and power transfer to flying objects such as drones. To enable such applications, it is necessary to examine the configuration of the power-transfer and power-receiving antennas and to improve the RF-DC conversion efficiency (hereinafter referred to as conversion efficiency) of the rectifier circuit on the power-receiving antenna. To improve the conversion efficiency, various methods that utilize full-wave rectification rather than half-wave rectification have been proposed. However, these come with problems such as a complicated circuit structure, the need for additional capacitors, the selection of components at high frequencies, and a reduction in mounting yield. In this paper, we propose a method to improve the conversion efficiency by loading a high-impedance microstrip line as a feedback line in part of the rectifier circuit. We analyzed a class-F rectifier circuit using circuit analysis software and found that the conversion efficiency of the conventional configuration was 54.2%, but the proposed configuration was 69.3%. We also analyzed a measuring circuit made with a discrete configuration in the 5.8-GHz band and found that the conversion efficiency was 74.7% at 24dBm input.

Publication: IEICE TRANSACTIONS on Electronics Vol.E104-C No.10 pp.552-558

Publication Date: 2021/10/01

Publicized: 2021/03/30

Online ISSN: 1745-1353

DOI: 10.1587/transele.2021MMP0009

Type of Manuscript: Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technologies)

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Authors

Seiya MIZUNO
  Nihon University
Ryosuke KASHIMURA
  Japan Radio Co., Ltd, NAKANO CENTRAL PARK EAST
Tomohiro SEKI
  Nihon University
Maki ARAI
  Nihon University
Hiroshi OKAZAKI
  NTT DOCOMO, INC
Yasunori SUZUKI
  NTT DOCOMO, INC

Keyword

wireless power transfer, rectifier circuit, feedback line, microwave frequency, quasi-millimeter and millimeter-wave frequency

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Seiya MIZUNO, Ryosuke KASHIMURA, Tomohiro SEKI, Maki ARAI, Hiroshi OKAZAKI, Yasunori SUZUKI, "Rectifier Circuit using High-Impedance Feedback Line for Microwave Wireless Power Transfer Systems" in IEICE TRANSACTIONS on Electronics, vol. E104-C, no. 10, pp. 552-558, October 2021, doi: 10.1587/transele.2021MMP0009.
Abstract: Research on wireless power transmission technology is being actively conducted, and studies on spatial transmission methods such as SSPS are currently underway for applications such as power transfer to the upper part of steel towers and power transfer to flying objects such as drones. To enable such applications, it is necessary to examine the configuration of the power-transfer and power-receiving antennas and to improve the RF-DC conversion efficiency (hereinafter referred to as conversion efficiency) of the rectifier circuit on the power-receiving antenna. To improve the conversion efficiency, various methods that utilize full-wave rectification rather than half-wave rectification have been proposed. However, these come with problems such as a complicated circuit structure, the need for additional capacitors, the selection of components at high frequencies, and a reduction in mounting yield. In this paper, we propose a method to improve the conversion efficiency by loading a high-impedance microstrip line as a feedback line in part of the rectifier circuit. We analyzed a class-F rectifier circuit using circuit analysis software and found that the conversion efficiency of the conventional configuration was 54.2%, but the proposed configuration was 69.3%. We also analyzed a measuring circuit made with a discrete configuration in the 5.8-GHz band and found that the conversion efficiency was 74.7% at 24dBm input.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.2021MMP0009/_p

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@ARTICLE{e104-c_10_552,
author={Seiya MIZUNO, Ryosuke KASHIMURA, Tomohiro SEKI, Maki ARAI, Hiroshi OKAZAKI, Yasunori SUZUKI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Rectifier Circuit using High-Impedance Feedback Line for Microwave Wireless Power Transfer Systems},
year={2021},
volume={E104-C},
number={10},
pages={552-558},
abstract={Research on wireless power transmission technology is being actively conducted, and studies on spatial transmission methods such as SSPS are currently underway for applications such as power transfer to the upper part of steel towers and power transfer to flying objects such as drones. To enable such applications, it is necessary to examine the configuration of the power-transfer and power-receiving antennas and to improve the RF-DC conversion efficiency (hereinafter referred to as conversion efficiency) of the rectifier circuit on the power-receiving antenna. To improve the conversion efficiency, various methods that utilize full-wave rectification rather than half-wave rectification have been proposed. However, these come with problems such as a complicated circuit structure, the need for additional capacitors, the selection of components at high frequencies, and a reduction in mounting yield. In this paper, we propose a method to improve the conversion efficiency by loading a high-impedance microstrip line as a feedback line in part of the rectifier circuit. We analyzed a class-F rectifier circuit using circuit analysis software and found that the conversion efficiency of the conventional configuration was 54.2%, but the proposed configuration was 69.3%. We also analyzed a measuring circuit made with a discrete configuration in the 5.8-GHz band and found that the conversion efficiency was 74.7% at 24dBm input.},
keywords={},
doi={10.1587/transele.2021MMP0009},
ISSN={1745-1353},
month={October},}

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TY - JOUR
TI - Rectifier Circuit using High-Impedance Feedback Line for Microwave Wireless Power Transfer Systems
T2 - IEICE TRANSACTIONS on Electronics
SP - 552
EP - 558
AU - Seiya MIZUNO
AU - Ryosuke KASHIMURA
AU - Tomohiro SEKI
AU - Maki ARAI
AU - Hiroshi OKAZAKI
AU - Yasunori SUZUKI
PY - 2021
DO - 10.1587/transele.2021MMP0009
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E104-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 2021
AB - Research on wireless power transmission technology is being actively conducted, and studies on spatial transmission methods such as SSPS are currently underway for applications such as power transfer to the upper part of steel towers and power transfer to flying objects such as drones. To enable such applications, it is necessary to examine the configuration of the power-transfer and power-receiving antennas and to improve the RF-DC conversion efficiency (hereinafter referred to as conversion efficiency) of the rectifier circuit on the power-receiving antenna. To improve the conversion efficiency, various methods that utilize full-wave rectification rather than half-wave rectification have been proposed. However, these come with problems such as a complicated circuit structure, the need for additional capacitors, the selection of components at high frequencies, and a reduction in mounting yield. In this paper, we propose a method to improve the conversion efficiency by loading a high-impedance microstrip line as a feedback line in part of the rectifier circuit. We analyzed a class-F rectifier circuit using circuit analysis software and found that the conversion efficiency of the conventional configuration was 54.2%, but the proposed configuration was 69.3%. We also analyzed a measuring circuit made with a discrete configuration in the 5.8-GHz band and found that the conversion efficiency was 74.7% at 24dBm input.
ER -