Title :
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
fDate :
7/3/1905 12:00:00 AM
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;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2011.2141973
