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Study on microwave coherent power combining based on 20-kW S-band CW power-adjustable magnetrons

Author

Listed:
  • Xiaojie Chen
  • Heping Huang
  • Wan Jiang
  • Changjun Liu

Abstract

In order to meet the requirements of large-power capacity in microwave-energy industry, the microwave coherent power combining by multiple magnetrons is a valid method to gain a large-power and high efficiency microwave source. In microwave energy applications, microwave absorption of industrial materials is varying in the heating duration and dependent on the dynamic change of materials. It is the first time that a 20-kW continuously power-adjustable injection-locked magnetron source has been achieved, and according to the experiment results, the maximum microwave coherent power combining output reaches 33.1 kW, and the coherent power combining efficiency is higher than 93%. The experiments show that the unbalanced output power between the two magnetrons does not affect greatly on the microwave coherent power combining efficiency. It is a great progress to develop the microwave power source which satisfies the power capacity requirement of microwave energy industry with the real-time power adjustment for the microwave industrial applications.

Suggested Citation

  • Xiaojie Chen & Heping Huang & Wan Jiang & Changjun Liu, 2017. "Study on microwave coherent power combining based on 20-kW S-band CW power-adjustable magnetrons," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 31(17), pages 1835-1842, November.
    • Handle: RePEc:taf:tewaxx:v:31:y:2017:i:17:p:1835-1842
    DOI: 10.1080/09205071.2017.1363003
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