Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 4, Issue -, Pages 175-178Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2005.846434
Keywords
coplanar waveguide (CPW) band-stop filter; coplanar waveguides; rectenna; wireless power transmission
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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-Omega load resistor is obtained.
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