A Dual-Band Dual-Sense Circularly Polarized Rectenna for Millimeter-Wave Power Transmission
Year: 2024
Type: article
Abstract: This article puts forth a novel dual-band dual-sense (DBDS) circularly polarized (CP) rectenna operating at 24 and 28 GHz for millimeter-wave power transmission (MMPT). An arc-shaped parasitic patch is loaded near a single-layer circular patch to induce chirality. The chiral structure transforms linearly polarized (LP) waves, coupled from a slot, into left-hand CP (LHCP) and right-hand CP (RHCP) waves at the two respective operating frequencies. The DBDS CP antenna array, consisting of four antenna elements, each integrated with a substrate-integrated waveguide (SIW) cavity, achieves gains of 17.1 and 17.0 dBic at 24 and 28 GHz, respectively. A dual-band rectifying circuit, comprising two L-section impedance transformers and three fan-shaped low-pass filters, is designed and integrated with the antenna array to form the DBDS CP rectenna. The proposed rectenna achieves maximum conversion efficiencies of 49.1% and 47.8% at 24 and 28 GHz, respectively, both at an input power of 18 dBm. The compact structure and low profile make it suitable for large-scale array applications in MMPT systems.
Authors: Yan Wang, Haoyuan Pan, Tse-Tin Chan
Institutions: Education University of Hong Kong, Shenzhen University
Language: English
Topic: Antenna Design and Analysis
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,495
Award: G8548507615
OpenAlex ID: W4404101304