Wideband mmWave Wireless Power Transfer: Theory, Design and Experiments

Chaoyun Song, Lei Wang, Zhensheng Chen, George Goussetis, Guy A. E. Vandenbosch, Yi Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

A new type of wireless power transfer system is presented with wideband mmWave transmitters and rectennas. The proposed system transmits a beam formable and beam steerable signal by exploiting the inherent frequency-dispersive nature of a passive leaky wave antenna, thereby eliminating the need for active phased array and other costly control methods. Multiple nodes can be wirelessly powered simultaneously by using a wideband mmWave rectenna to harvest the frequency scanning signals. A 24-34 GHz rectenna was designed in a highly integrated fashion and has been tested to show its high conversion efficiency of >50% at the frequency and power levels of interest. We have presented a system demonstration for remotely charging diverse nodes at > 1 m distance by using the proposed system with feedback control for the multi-tone frequency modulation and sweeping of the transmitting signals. Our work has showcased the passive beamforming and multi-node tracking of mmWave WPT system using significantly reduced cost and complexity.
Original languageEnglish
Title of host publication17th European Conference on Antennas and Propagation (EuCAP 2023)
PublisherIEEE
ISBN (Print)9781665475419
DOIs
Publication statusPublished - 31 May 2023
Event17th IEEE European Conference on Antennas and Propagation 2023 - Florence, Italy
Duration: 26 Mar 202331 Mar 2023

Conference

Conference17th IEEE European Conference on Antennas and Propagation 2023
Abbreviated titleEuCAP 2023
Country/TerritoryItaly
CityFlorence
Period26/03/2331/03/23

Keywords

  • leaky wave antennas
  • mmWave
  • rectennas
  • wireless power transfer

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Instrumentation

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