Wireless Power Transfer in the Radiative Near-field Through Resonant Bessel-Beam Launchers at Millimeter Waves

被引：13

作者：

Benassi, Francesca ^{[1
]}

Fuscaldo, Walter ^{[2
]}

Masotti, Diego ^{[1
]}

Galli, Alessandro ^{[3
]}

Costanzo, Alessandra ^{[4
]}

机构：

[1] Univ Bologna, DEI Guglielmo Marconi, Bologna, Italy

[2] CNR, CNR IMM, Rome, Italy

[3] Sapienza Univ Rome, DIET, Rome, Italy

[4] Univ Bologna, DEI Guglielmo Marconi, Cesena, Italy

来源：

2021 IEEE WIRELESS POWER TRANSFER CONFERENCE (WPTC) | 2021年

关键词：

Wireless power transfer; near-field focusing; Bessel beams; leaky waves; antennas;

D O I：

10.1109/WPTC51349.2021.9458226

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This work presents the theoretical and numerical design of a novel radiative near-field wireless power transfer (WPT) system at millimeter waves (mm-waves), based on one TX and one RX resonant Bessel-beam launcher, with the aim of providing superior performance in terms of energy focusing capabilities. To evaluate the achievable rectified power, for several TX-RX distances, the wireless link is accurately and efficiently accounted for, by combining the EM analysis of the launchers with EM theory. A single-diode rectifier is designed to operate at 37.5 GHz: for a received power of 0 dBm the expected rectifier efficiency exceeds 30%. Radiative near-field wireless power transfer (WPT) promises several benefits over both nonradiative near-field and radiative far-field wireless links. The compact size of the proposed system makes it particularly attractive for future mm-wave wearable WPT systems.

引用

页数：4

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