Dual‐polarized high gain resonant cavity antenna for radio frequency energy harvesting

A Fabry pérot antenna with a multilayer superstrate having nonuniform unit cells has been investigated as a receiving antenna for radio frequency (RF) energy harvesting applications. Here, the primary radiator is selected as a dual‐polarized aperture coupled microstrip antenna with a double‐layer su...

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Bibliographic Details
Published in:International journal of RF and microwave computer-aided engineering 2019-12, Vol.29 (12), p.22003-n/a
Main Authors: Vinnakota, Sarath Sankar, Kumari, Runa, Majumder, Basudev
Format: Article
Language:English
Subjects:
Apertures
Circuit design
Energy conversion efficiency
Energy harvesting
fabry pérot antenna
Frequencies
Ground plane
High gain
Microstrip antennas
Multilayers
partially reflecting surface
power conversion efficiency
Radiators
Radio frequency
rectifying circuit
Topology
Vertical polarization
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Summary:A Fabry pérot antenna with a multilayer superstrate having nonuniform unit cells has been investigated as a receiving antenna for radio frequency (RF) energy harvesting applications. Here, the primary radiator is selected as a dual‐polarized aperture coupled microstrip antenna with a double‐layer superstrate. This antenna excites orthogonal polarizations, vertical (V) and horizontal (H) in the frequency band of 6.2 and 5.8 GHz, respectively, due to the presence of two orthogonal H‐shaped slots in its ground plane. The proposed antenna provides a gain enhancement of 9.8 and 10.1 dBi at the respective frequencies. The rectifying circuit is designed for a frequency of 5.8 GHz using a voltage doubler topology. The circuit provides a power conversion efficiency of 41% at 0 dBm input power.
ISSN:1096-4290
1099-047X
DOI:10.1002/mmce.22003