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首页> 外文期刊>IEEE Transactions on Microwave Theory and Techniques >High-Efficiency Microwave Rectifier With Coupled Transmission Line for Low-Power Energy Harvesting and Wireless Power Transmission
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High-Efficiency Microwave Rectifier With Coupled Transmission Line for Low-Power Energy Harvesting and Wireless Power Transmission

机译：高效微波整流器，具有耦合输电线路，用于低功耗能量收集和无线电力传输

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摘要

In this article, a Schottky diode-based microwave rectifier that employs coupled transmission lines (CTLs) is proposed. CTL is herein used to enhance the voltage amplitude across the Schottky diode with the consequent increase in the rectifier efficiency, especially for low input powers. It is also shown that multiple cascaded CTLs can further enhance the rectifier conversion efficiency, even if this benefit is partially annihilated by the increased insertion loss. Several compact prototypes with single and dual CTLs for 2.45 GHz have been fabricated and measured for different input power levels. Particularly, a single CTL rectifier exhibits RF-to-dc conversion efficiency of 67.7% for an input power of 0 dBm, leading to an improvement of about 3% with respect to other referred rectifiers (with a dc load of 4.47 k $Omega $ ), while dual CTL rectifier has an outstanding efficiency of 75.3% for an input power of only 5.5 dBm (with a dc load of 1.76 k $Omega $ ). Passive voltage boost by means of CTLs can be applied to other rectifier circuits as also demonstrated.
机译：在本文中，提出了一种采用耦合传输线（CTL）的肖特基二极管的微波整流器。 CTL在本文中用于增强肖特基二极管的电压幅度，随后对整流效率的增加，特别是对于低输入功率。还表明，即使通过增加的插入损耗是部分湮灭的，多个级联CTL也可以进一步提高整流转换效率。具有用于2.45GHz的单个和双CTL的几个紧凑的原型，并针对不同的输入功率水平进行了制造和测量。特别地，单个CTL整流器表现出0 dBm的输入功率的RF-TO-DC转换效率为67.7％，相对于其他引用的整流器的输入功率为约3％（具有4.47k的直流负荷<内联 - 式的xmlns：MML = “http://www.w3.org/1998/Math/MathML” 的xmlns：的xlink = “http://www.w3.org/1999/xlink”> $ 欧米茄$ ），而双CTL整流器具有的75.3％为只有5.5 dBm的输入功率的杰出效率（具有1.76ķ $ oomega $ ）。通过CTL的无源电压升压可以应用于其他整流电路，也可以应用于其他整流器电路。

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  • 来源
  • 作者

    Fading Zhao; Daniele Inserra; Guoliang Gao; Yongjun Huang; Jian Li; Guangjun Wen;

  • 作者单位

    School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu China;

    School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu China;

    School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu China;

    School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu China;

    School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu China;

    School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Schottky diodes; Microwave circuits; Harmonic analysis; Power system harmonics; Radio frequency; Power transmission lines;

    机译：肖特基二极管;微波电路;谐波分析;电力系统谐波;射频;输电线路;

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