文件名称：整流天线的设计与试验
文件大小：199KB
文件格式：PDF
更新时间：2017-09-22 03:42:56
antenna
high-efficiency rectenna element has been designed and tested at 5.8 GHz for applications involving microwavepower transmission. The dipole antenna and filtering circuitry are printed on a thin duroid substrate. A silicon Schottkybarrier 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- 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. Index Terms—Detectors, nonlinear circuits,