One Octave Bandwidth Rectifier With a Frequency Selective Diode Array

In this paper, a high-efficiency rectifier with one octave bandwidth is proposed by proposing a diode array with a frequency selective topology. With the frequency selective topology, the low-and high-band rectifiers are combined together without extra matching circuit at the input leading to a high...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 28; no. 11; pp. 1008 - 1010
Main Authors Wu, Pengde, Huang, Shao Ying, Zhou, Wenshen, Liu, Changjun
Format Journal Article
LanguageEnglish
Published IEEE 01.11.2018
Subjects
Broadband communication
Broadband RF rectifier
Energy harvesting
energy harvesting (EH)
frequency selection
high efficiency
Impedance matching
Microwave circuits
Rectifiers
Topology
Wireless power transfer
wireless power transfer (WPT)
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Summary:In this paper, a high-efficiency rectifier with one octave bandwidth is proposed by proposing a diode array with a frequency selective topology. With the frequency selective topology, the low-and high-band rectifiers are combined together without extra matching circuit at the input leading to a high-efficiency broadband design. For validation, a prototype rectifier was fabricated and characterized. The measured results show that the RF-dc power conversion efficiency (PCE) maintains above 70% from 1.75 to 3.55 GHz at an input power of 10 dBm. The measured PCE remains more than 50% within 1.4-3.7 GHz and the <inline-formula> <tex-math notation="LaTeX">|S_{\textrm {11}}| </tex-math></inline-formula> is lower than −10 dB from 1.7 to 3.6 GHz.
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2018.2869281