Near-field coupled antenna pair with transmission efficiency enhancement for WPT

Author

Jui-Hung Chou ; Ding-Bing Lin ; Sih-Jin Chen

Author_Institution

Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2015

fDate

26-29 May 2015

Firstpage

275

Lastpage

277

Abstract

In this paper, a near-field coupled transmitting-receiving antenna pair is proposed to achieve the maximum transmission efficiency. The antenna structure developed can achieve up to 77 % transmission efficiency in near-field coupling region. Additionally, through the rectifier circuit design, the front-end antenna pair will convert the radio frequency energy received into DC output. The maximum conversion efficiency of the proposed receiving rectenna is about 80% at the incident power level of 24 dBm and the load impedance of 1 kΩ. The output DC voltage of the rectenna is 13.12 V as the maximum conversion efficiency occurred.

Keywords

radiofrequency power transmission; receiving antennas; rectennas; transmitting antennas; WPT; front-end antenna pair; near-field coupled transmitting-receiving antenna pair; rectenna; rectifier circuit design; transmission efficiency enhancement; wireless power transmission; Antenna measurements; Power harmonic filters; Receiving antennas; Rectennas; Reflector antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (APEMC), 2015 Asia-Pacific Symposium on

Conference_Location

Taipei

Print_ISBN

978-1-4799-6668-4

Type

conf

DOI

10.1109/APEMC.2015.7175224

Filename

7175224