A Dual Circularly Polarized 2.45-GHz Rectenna for Wireless Power Transmission

Author

Harouni, Zied ; Cirio, Laurent ; Osman, Lotfi ; Gharsallah, Ali ; Picon, Odile

Author_Institution

Univ. of El Manar, El Manar, Tunisia

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

306

Lastpage

309

Abstract

A 2.45-GHz rectifying antenna (rectenna) using a compact dual circularly polarized (DCP) patch antenna with an RF-dc power conversion part is presented. The DCP antenna is coupled to a microstrip line by an aperture in the ground plane and includes a bandpass filter for harmonic rejections. It exhibits a measured bandwidth of 2100 MHz (10 dB return loss) and a 705-MHz CP bandwidth (3 dB axial ratio). The maximum efficiency and dc voltage are respectively equal to 63% and 2.82 V over a resistive load of 1600 Ω for a power density of 0.525 mW/cm².

Keywords

microstrip antennas; power conversion; power transmission; rectennas; RF-dc power conversion; dual circularly polarized rectenna; frequency 2.45 GHz; frequency 2100 MHz; patch antenna; rectifying antenna; resistance 1600 ohm; voltage 2.82 V; wireless power transmission; Antenna measurements; Harmonic analysis; Microstrip antennas; Rectennas; Rectifiers; Schottky diodes; Dual circular polarizations; RF–dc conversion efficiency; harmonics rejecting device; microstrip antenna; rectenna; rectifying circuit;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2141973

Filename

5749271