A Dual-Band Rectifier With a Novel Impedance Compression Network for WPT

IF 6.5 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Power Electronics Pub Date : 2025-02-10 DOI:10.1109/TPEL.2025.3540022

Ben Cao;Changtong Wu;Hongbin Zhai;Kaibin Xu;Zhipeng Chen;Runjie Zhou;Tao Yang;Xiangyu Cai;Guoqiang Li

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Abstract

In this work, a dual-band rectifier with an impedance compression network (ICN) is designed for wireless power transfer. The proposed ICN is connected to the parallel subrectifiers that utilize a voltage-doubling topology. Notably, the proposed dual-band ICN eliminates the need for matching networks, as the two impedances are conjugated to each other at two distinct frequencies. The design procedure for the two proposed dual-band rectifiers with the ICN is provided and validated. The results reveal that the peak power conversion efficiency (PCE) of rectifier I reaches 78% at 2.5 GHz with a 500-Ω load and 56% at 5.2 GHz with a 300-Ω load, and the PCE of rectifier II reaches 75% and 66% at 2.35 and 5.35 GHz with a 500-Ω load, respectively. Furthermore, rectifier I, featuring short-ended stubs, shows superior dual-bandwidth characteristics compared to rectifier II. It maintains an efficiency exceeding 50% from 1.9 to 3 GHz and 4.2 to 5.2 GHz. The aforementioned results reveal that the proposed ICN offers a novel design method for dual-band rectifiers.

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一种新型WPT阻抗压缩网络双带整流器

本文设计了一种带阻抗压缩网络（ICN）的双频整流器，用于无线电力传输。所提出的ICN连接到利用倍压拓扑的并联整流器。值得注意的是，所提出的双频ICN消除了匹配网络的需要，因为两个阻抗在两个不同的频率上相互共轭。给出了两种带ICN的双带整流器的设计过程并进行了验证。结果表明，整流器I在负载为500-Ω、2.5 GHz时的峰值功率转换效率为78%，在负载为300-Ω、5.2 GHz时的峰值功率转换效率为56%；整流器II在负载为500-Ω、2.35 GHz时的峰值功率转换效率为75%、5.35 GHz时的峰值功率转换效率为66%。此外，与整流器II相比，具有短端存根的整流器I具有优越的双带宽特性。在1.9 ~ 3ghz和4.2 ~ 5.2 GHz范围内保持50%以上的效率。上述结果表明，所提出的ICN为双频整流器提供了一种新颖的设计方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Power Electronics 工程技术-工程：电子与电气

CiteScore

15.20

自引率

20.90%

发文量

1099

审稿时长

3 months

期刊介绍： The IEEE Transactions on Power Electronics journal covers all issues of widespread or generic interest to engineers who work in the field of power electronics. The Journal editors will enforce standards and a review policy equivalent to the IEEE Transactions, and only papers of high technical quality will be accepted. Papers which treat new and novel device, circuit or system issues which are of generic interest to power electronics engineers are published. Papers which are not within the scope of this Journal will be forwarded to the appropriate IEEE Journal or Transactions editors. Examples of papers which would be more appropriately published in other Journals or Transactions include: 1) Papers describing semiconductor or electron device physics. These papers would be more appropriate for the IEEE Transactions on Electron Devices. 2) Papers describing applications in specific areas: e.g., industry, instrumentation, utility power systems, aerospace, industrial electronics, etc. These papers would be more appropriate for the Transactions of the Society which is concerned with these applications. 3) Papers describing magnetic materials and magnetic device physics. These papers would be more appropriate for the IEEE Transactions on Magnetics. 4) Papers on machine theory. These papers would be more appropriate for the IEEE Transactions on Power Systems. While original papers of significant technical content will comprise the major portion of the Journal, tutorial papers and papers of historical value are also reviewed for publication.