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

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 exhib...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2011, Vol.10, p.306-309
Main Authors: Harouni, Zied, Cirio, Laurent, Osman, Lotfi, Gharsallah, Ali, Picon, Odile
Format: Article
Language:English
Subjects:
Antenna measurements
Dual circular polarizations
Harmonic analysis
harmonics rejecting device
microstrip antenna
Microstrip antennas
Physics
rectenna
Rectennas
Rectifiers
rectifying circuit
RF-dc conversion efficiency
Schottky diodes
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Description
Summary: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/cm 2 .
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2011.2141973