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

Zied Harouni (1) , Laurent Cirio (2) , Lotfi Osman (1) , Ali Gharsallah (1) , Odile Picon (2)

1 University of Tunis El Manar
2 ESYCOM - Electronique, Systèmes de communication et Microsystèmes

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 Omega for a power density of 0.525 mW/cm(2)

Domaines: Physique [physics]

Zied Harouni, Laurent Cirio, Lotfi Osman, Ali Gharsallah, Odile Picon. A Dual Circularly Polarized 2.45-GHz Rectenna for Wireless Power Transmission. IEEE Antennas and Wireless Propagation Letters, 2011, 10, pp.306-309. ⟨10.1109/LAWP.2011.2141973⟩. ⟨hal-03135634⟩