Passive radio-frequency repeater for enhancing signal reception and transmission in a wireless charging platform

Kwun-Chiu Wan; Quan Xue; Xun Liu; S. Y. Hui

doi:10.1109/TIE.2013.2263771

Author(s)

Kwun-Chiu Wan
Quan Xue
Xun Liu
S. Y. Hui

Related Research Unit(s)

Department of Electrical Engineering

Detail(s)

Original language	English
Article number	6516901
Pages (from-to)	1750-1757
Journal / Publication	IEEE Transactions on Industrial Electronics
Volume	61
Issue number	4
Online published	13 May 2013
Publication status	Published - Apr 2014

Link(s)

DOI	DOI https://doi.org/10.1109/TIE.2013.2263771 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84887331274&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(325de1cb-ba00-40c3-b0b8-8b96288c0c51).html

Abstract

This paper reports new results of an emerging field that combines radio-frequency (RF) repeater design and wireless power technologies for charging applications. Power electronics-based wireless charging pads have recently been developed for charging portable electronic devices such as mobile phones. However, the electromagnetic shield underneath the pad could reduce transmission and reception signals. In this paper, a novel passive RF repeater for a wireless charging platform is proposed and investigated for mitigating the signal blocking problem. Since the effective shielding structure for the low-frequency charging signal is not RF friendly, the received RF signal of a wireless mobile device can be reduced when the phone is placed on a wireless charging platform. A dual-polarization free-positioning passive RF signal repeater has been successfully designed and implemented. It can improve the RF reception signal strength by at least 3.6 dB without noticeable reduction in energy efficiency in the charging process. © 2013 IEEE.

Research Area(s)

Contactless power transfer, emerging technology, radio-frequency (RF) repeaters, signal transmission and reception, wireless charging, wireless power

Citation Format(s)

[ RIS ] [ BibTeX ]

Passive radio-frequency repeater for enhancing signal reception and transmission in a wireless charging platform. / Wan, Kwun-Chiu; Xue, Quan; Liu, Xun et al.

In: IEEE Transactions on Industrial Electronics, Vol. 61, No. 4, 6516901, 04.2014, p. 1750-1757.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Wan, K-C, Xue, Q, Liu, X & Hui, SY 2014, 'Passive radio-frequency repeater for enhancing signal reception and transmission in a wireless charging platform', IEEE Transactions on Industrial Electronics, vol. 61, no. 4, 6516901, pp. 1750-1757. https://doi.org/10.1109/TIE.2013.2263771

Wan, K-C., Xue, Q., Liu, X., & Hui, S. Y. (2014). Passive radio-frequency repeater for enhancing signal reception and transmission in a wireless charging platform. IEEE Transactions on Industrial Electronics, 61(4), 1750-1757. [6516901]. https://doi.org/10.1109/TIE.2013.2263771

Wan K-C, Xue Q, Liu X, Hui SY. Passive radio-frequency repeater for enhancing signal reception and transmission in a wireless charging platform. IEEE Transactions on Industrial Electronics. 2014 Apr;61(4):1750-1757. 6516901. Epub 2013 May 13. doi: 10.1109/TIE.2013.2263771

Wan, Kwun-Chiu ; Xue, Quan ; Liu, Xun et al. / Passive radio-frequency repeater for enhancing signal reception and transmission in a wireless charging platform. In: IEEE Transactions on Industrial Electronics. 2014 ; Vol. 61, No. 4. pp. 1750-1757.