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A novel dual-frequency microwave rectifier at 2.45 and 5.8 GHz with harmonic recycling

Author

Listed:
  • Wan Jiang
  • Changjun Liu
  • Chengyang Yu
  • Feifei Tan
  • Xing Chen
  • Kama Huang

Abstract

A novel dual-frequency microwave rectifier that operates at 2.45 GHz alone, 5.8 GHz alone, or their combination has been developed in this paper. It is the first approach to microwave rectifying for a situation of the incoherent microwave power combination. We focused on the two primary components, i.e. the regulation of impedance matching and the recycling of the second harmonics. A quarter-wave short-ended microstrip line at 5.8 GHz is shunted at the input of the rectifier to enhance the impedance matching at 2.45 GHz. A microstrip line band-stop filter (BSF) and a quarter-wave short-ended microstrip line are introduced to improve the recycling of the second harmonics. The measured microwave to DC (MW-DC) conversion efficiencies are 57.5, 46.5, and 40.7% at 2.45, 5.8 GHz, and their combination, respectively, with an input microwave power at 17 dBm. It may be applied to a dual-frequency microwave power wireless transmission system.

Suggested Citation

  • Wan Jiang & Changjun Liu & Chengyang Yu & Feifei Tan & Xing Chen & Kama Huang, 2013. "A novel dual-frequency microwave rectifier at 2.45 and 5.8 GHz with harmonic recycling," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 27(6), pages 707-715, April.
    • Handle: RePEc:taf:tewaxx:v:27:y:2013:i:6:p:707-715
    DOI: 10.1080/09205071.2013.763589
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