Abstract
A compact high-efficiency and high-power class-F microwave rectifier for the frequency of 2.45 GHz is described in this letter. The proposed rectifying circuit mainly consists of a high reverse breakdown voltage Schottky diode for high power conversion, and a novel harmonic termination circuit, resulting in a simpler and more compact structure. The microwave rectifier has been optimized with the aid of a simulation software, and the manufactured prototype exhibits a measured microwave-to-dc conversion efficiency larger than 80% for an input power level of 31 dBm, in good agreement with simulation results.
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