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1 results

  • Harmonically terminated high-power rectifier for wireless power transfer

  • Aasrith Ganti, Jenshan Lin, Raul A. Chinga, Shuhei Yoshida
  • Journal:
    Wireless Power Transfer / Volume 3 / Issue 2 / September 2016
    Published online by Cambridge University Press:
    12 April 2016, pp. 75-82
    Print publication:
    September 2016

  • The paper presents a simplified analysis of harmonically terminated rectifier circuit and experimental results of a Schottky diode rectifier with even and odd harmonic terminations. The analysis is based on the Fourier series expansion of the voltage and current across the diode circuit. Harmonic terminations similar to the techniques used for power amplifiers are studied. A maximum efficiency of 84% at 30 dBm is obtained with second- and third-order harmonics terminated. The optimum value of dc load to maximize efficiency is obtained by sweeping the load. An optimal operating range of 28–35 dBm is obtained. The applications of the rectifier in wireless charging and power transfer systems are discussed.