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

被引：366

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

页码：2053 / 2060

页数：8

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