Design and experiments of a high-conversion-efficiency 5.8-GHz rectenna

被引：365
|
作者：
McSpadden, JO [1 ]
Fan, L
Chang, K
机构：
[1] Texas A&M Univ, Dept Elect Engn, College Stn, TX 77843 USA
[2] Texas Instruments Inc, Dallas, TX 75243 USA
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1998年 / 46卷 / 12期
基金：
美国国家航空航天局;
关键词：
detectors; nonlinear circuits; power conversion; rectennas; rectifying antennas;
D O I：
10.1109/22.739282
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A high-efficiency rectenna element has been designed and tested at 5.8 GHz for applications involving microwave-power transmission. The dipole antenna and filtering circuitry are printed on a thin duroid substrate. A silicon Schottky-barrier mixer diode with a low breakdown voltage is used as the rectifying device. The rectenna element is tested inside a waveguide simulator and achieves an RF-to-dc conversion efficiency of 82% at an input power level of 50-mW and 327-Omega load. Closed-form equations are given for the diode efficiency and input impedance as a function of input RF power. Measured and calculated efficiency results are in good agreement. The antenna and circuit design are based on a full-wave electromagnetic simulator. Second harmonic power levels are 21 dB down from the fundamental input power.
引用
收藏
页码：2053 / 2060
页数：8
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