Beamforming power emitter design with 2×2 antenna array and phase control for microwave/RF-based energy harvesting

Sheng Fan Yang, Tzuen-Hsi Huang, Chun Cheng Chen, Chun Yi Lu, Pei Jung Chung

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

5 Citations (Scopus)

Abstract

In this paper, a 915-MHz RF-power emitter with an antenna array controlled by phase shifters is proposed to make directional energy beam point to the energy harvesting (EH) receiver. For the beamforming request, a 2×2 patch antenna array and tunable 360° reflection-type phase shifters are designed. Measurement results show the energy transmission efficiency can be improved by 3.9 times higher than that of single patch antenna at one meter away under the same input power level. Furthermore, by applying ±15° beamforming control, transmission efficiency is increased by 2.7 times when receiving antenna placed at the angle of +24°.

Original languageEnglish
Title of host publication2015 IEEE Wireless Power Transfer Conference, WPTC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467374477
DOIs
Publication statusPublished - 2015 Jun 29
Event2015 IEEE Wireless Power Transfer Conference, WPTC 2015 - Boulder, United States
Duration: 2015 May 132015 May 15

Publication series

Name2015 IEEE Wireless Power Transfer Conference, WPTC 2015

Other

Other2015 IEEE Wireless Power Transfer Conference, WPTC 2015
CountryUnited States
CityBoulder
Period15-05-1315-05-15

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Yang, S. F., Huang, T-H., Chen, C. C., Lu, C. Y., & Chung, P. J. (2015). Beamforming power emitter design with 2×2 antenna array and phase control for microwave/RF-based energy harvesting. In 2015 IEEE Wireless Power Transfer Conference, WPTC 2015 [7140129] (2015 IEEE Wireless Power Transfer Conference, WPTC 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WPT.2015.7140129