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Design of a 5.8-GHz rectenna incorporating a new patch antenna

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3 Author(s)
Chin, C.-H.K. ; Wireless Commun. Res. Center, City Univ. of Hong Kong, China ; Quan Xue ; Chi Hou Chan

This paper presents a rectifying antenna (rectenna) designed in a finite ground coplanar waveguide (FG-CPW) circuit. The new rectenna element is based on a new patch antenna and a new band-stop filter, in the form of compact CPW resonant cell (CCRC), located between the antenna and the rectifying diode. The novel coplanar patch antenna with about 9-dBi gain is proposed for the rectenna. The CCRC is adopted to suppress the second harmonic from radiation. With the use of this band-stop filter, a radio-frequency-to-direct-current (RF-to-dc) conversion efficiency of 68.5% using a 270-Ω load resistor is obtained.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:4 )