Online spotlight: Wideband retrodirective arrays for wireless charging of portable devices

Mohammad Fairouz, Kuwait, Mohammad A. Saed

Research output: Contribution to specialist publicationArticle

Abstract

A dual frequency, active retrodirective array for wideband wireless charging of portable devices uses a wideband circularly polarized microstrip patch antenna array with sequential rotation and surface wave suppression. The retrodirective array operates at 2.4 GHz for the interrogating signal and over a wide band (5.8 to 6 GHz) for the retransmitted signal using up-converting mixers. Beam scanning inherent in retrodirective arrays ensures a constant power level available to the charging devices, regardless of location over a 50 degree angular sector of retrodirectivity.

Original languageEnglish
Volume63
No7
Specialist publicationMicrowave Journal
StatePublished - Jul 2020

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