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.
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收藏
页数：4
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