Efficient rectifier circuit operating at N78 and N79 sub-6 GHz 5G bands for microwave energy-harvesting and power transfer applications

The microwave energy-harvesting (MEH) and microwave power transfer (MPT) technologies have become the most emerging areas of research nowadays. The microwave rectifier circuit is the bottleneck of both the MEH and MPT systems. The efficiency of the system depends on the power conversion efficiency (...

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Bibliographic Details
Published inInternational journal of microwave and wireless technologies Vol. 16; no. 1; pp. 75 - 82
Main Authors Halimi, Md. Ahsan, Khan, Taimoor, Kishk, Ahmed A., Antar, Yahia M.M.
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 01.02.2024
Subjects
Antennas
Communications systems
Design
Energy conversion efficiency
Energy harvesting
Frequencies
Impedance matching
Power transfer
Rectifiers
Transmission lines
Wireless communications
Wireless Power Transfer and Energy Harvesting
China
Europe
India
5G
microwave power transfer
microwave energy harvesting
matching network
rectifier
Schottky diode
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ISSN1759-0787
1759-0795
DOI10.1017/S1759078723001162

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Summary:The microwave energy-harvesting (MEH) and microwave power transfer (MPT) technologies have become the most emerging areas of research nowadays. The microwave rectifier circuit is the bottleneck of both the MEH and MPT systems. The efficiency of the system depends on the power conversion efficiency (PCE) of the rectifier. Due to the recent advancement of the fifth-generation communication system, it is desirable to propose an efficient rectifier operating at sub-6 GHz 5G bands. A dual-band rectifier circuit is designed and demonstrated for MEH/MPT purposes, specifically at sub-6 GHz 5G frequency bands. The dual-band matching is achieved by using a stepped impedance transmission line. The rectifier covers N78 (3.3–3.6 GHz) and N79 (4.8–5.0 GHz) bands. Peak PCE of 67.6% @ 3.5 GHz and 56.8% @ 4.9 GHz are achieved. For validation purpose, the rectifier is fabricated and characterized and measured results show good agreement with simulated results.
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ISSN:1759-0787
1759-0795
DOI:10.1017/S1759078723001162