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IEICE TRANSACTIONS on Communications

Fundamental Experiment of a Rectenna Array for Microwave Power Reception

Takeo ITO, Yoshiyuki FUJINO, Masaharu FUJITA

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Summary :

A rectenna element applicable to Stratosphere Radio Relay System was proposed and a fundamental microwave power transmission experiment was carried out at 2.45GHz using a rectenna array manufactured based on the proposal. The rectenna element consists of a circular microstrip patch and a rectifying circuit of novel balanced-type design. The circuit allows to mount a rectifier and circuit components just on one side of a substrate without through holes, and hence it must be easy to manufacture a rectenna even having a large aperture. It was verified by a preliminary experiment that the rectifying circuit can provide more than 1 W of DC output power using 8 Shottky diodes as a rectifier with microwave-DC conversion efficiency of 67%. Then, DC output power of 4W was obtained from the 4-element rectenna array in the microwave power transmission experiment carried out in a radio anechoic chamber. The data showed a feasibility of practical application of the microwave power transmission technique.

Publication
IEICE TRANSACTIONS on Communications Vol.E76-B No.12 pp.1508-1513
Publication Date
1993/12/25
Publicized
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DOI
Type of Manuscript
Special Section PAPER (Special Issue on 1992 Internatioal Symposium on Antennas and Propagation)
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