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Electromagnetics Volume 39, 2019 - Issue 7
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Articles

A triple band circularly polarized rectenna for RF energy harvesting

Neeta SinghDepartment of Electronics and Communication Engineering, Jamia Millia Islamia, New Delhi, India
,
Binod Kumar KanaujiaSchool of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
,
Mirza Tariq BegDepartment of Electronics and Communication Engineering, Jamia Millia Islamia, New Delhi, India
,
MainuddinDepartment of Electronics and Communication Engineering, Jamia Millia Islamia, New Delhi, India
&
Sachin KumarDepartment of Electronics and Communication Engineering, SRM Institute of Science and Technology, Chennai, IndiaCorrespondence[email protected]
Pages 481-490 | Received 06 Mar 2019, Accepted 28 May 2019, Published online: 21 Aug 2019
 
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ABSTRACT

In this paper, a triple band rectenna for Wi-Fi (2.4 GHz), Wi-MAX (3.5 GHz) and WLAN (5.2 GHz) application frequencies is proposed. The rectenna consists of a square-shaped circularly polarized antenna and a voltage doubler rectifier linked through a matching circuitry. A Schottky diode based voltage doubler rectifier and three stubs are used for the rectification of RF power to achieve high conversion efficiency. The impedance matching network provides a perfect matching between the sensing antenna and RF-DC rectifier. The rectenna maximum conversion efficiency realized is 85.6% at 3.5 GHz.

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