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A novel 24 GHz circularly polarised metasurface rectenna

Huang, Wei, Du, Jinxin, Yang, Xue‐Xia, Che, Wenquan, Gao, Steven (2023) A novel 24 GHz circularly polarised metasurface rectenna. IET Microwaves, Antennas & Propagation, 17 (6). pp. 419-426. ISSN 1751-8725. E-ISSN 1751-8733. (doi:10.1049/mia2.12336) (KAR id:99845)


A novel 24 GHz circularly polarised metasurface rectenna for wireless power transmission is designed in this study. Based on experimental measurements and retro‐simulation, an effective approach is proposed to extract the parasitic parameters of a Schottky diode. A highly efficient millimetre wave rectifier with a measured efficiency of 63% is constructed based on the exact equivalent circuit parameters of a diode. A circularly polarised metasurface antenna is adopted as the receiving antenna, and the gain is enhanced by introducing metal vias around the metasurface. The antenna and the rectifier are connected directly via a microstrip line. Measurements show that the metasurface antenna has a gain of 11.3 dBic and an axial ratio of 2.5 dB at 24 GHz. The measured conversion efficiency of the rectenna reaches 63% at 300 Ω load when the input power is 15.2 dBm. The rectenna has the advantages of low profile, which can be conformal to the electrical equipment.

Item Type: Article
DOI/Identification number: 10.1049/mia2.12336
Uncontrolled keywords: equivalent circuits, millimetre wave antennas, millimetre wave diodes, rectennas, rectifying circuits
Subjects: T Technology
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Funders: National Natural Science Foundation of China (
SWORD Depositor: JISC Publications Router
Depositing User: JISC Publications Router
Date Deposited: 13 Feb 2023 12:47 UTC
Last Modified: 04 Mar 2024 19:58 UTC
Resource URI: (The current URI for this page, for reference purposes)

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