A Compact High-Efficiency Watt-Level Microwave Rectifier With a Novel Harmonic Termination Network

作者：Zhao, Fading; Li, Zhenbing; Wen, Guangjun; Li, Jian; Inserra, Daniele^*; Huang, Yongjun

来源：IEEE Microwave and Wireless Components Letters, 2019, 29(6): 418-420.

DOI：10.1109/LMWC.2019.2913782

• Harmonic termination circuit
• microwave rectifier
• wireless power transmission

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.

• 单位
  电子科技大学