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RF Energy Harvesting Using High Impedance Asymmetric Antenna Array Without Impedance Matching Network
Radio Science ( IF 1.6 ) Pub Date : 2021-03-07 , DOI: 10.1029/2020rs007103
Mohammad M. Fakharian 1
Affiliation  

This manuscript presents a rectenna with a high impedance asymmetric antenna array for ambient wireless energy harvesting at the 2.45 GHz frequency band. It is fulfilled without using any impedance matching networks, which demonstrations significant benefits over available rectennas as a function of the layout and cost with a wide range of input power level and load impedance. A rectenna prototype has been designed, fabricated, and tested. The rectenna configuration is etched on a single layer, commercial, low‐cost FR4 substrate. Simulation and experiments have been carried out. The results show that the proposed rectenna features a good characteristic of RF to DC conversion efficiency. Over 60% (up to 67%) RF‐DC conversion efficiency is realized for the input power levels from 12 to 21 dBm and load impedance between 1,200 and 8,100 Ω. The proposed rectenna can be suitable for powering many low‐power electronic devices, because of simple structure and low cost.

中文翻译:

使用无阻抗匹配网络的高阻抗非对称天线阵列进行射频能量收集

该手稿介绍了一种带有高阻抗非对称天线阵列的整流天线,用于在2.45 GHz频段收集周围的无线能量。无需使用任何阻抗匹配网络即可实现这一点,这证明了与可用整流天线相比,具有显着的优势,这取决于布局和成本,并具有广泛的输入功率水平和负载阻抗。已经设计,制造和测试了整流天线原型。整流天线配置在单层,商用,低成本FR4基板上进行蚀刻。已经进行了仿真和实验。结果表明,所提出的整流天线具有良好的射频到直流转换效率的特性。对于12至21 dBm的输入功率电平和1,200至8,100Ω的负载阻抗,可实现超过60%(高达67%)的RF-DC转换效率。
更新日期:2021-03-23
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