Journal of the Korean Physical Society

, Volume 67, Issue 5, pp 854–859 | Cite as

Experiments on a Ku-band gyrotron traveling-wave-tube amplifier with a tapered waveguide

  • Sang Wook Jung
  • Han Seul Lee
  • Kwang Ho Jang
  • Jin Joo Choi
  • Joon Ho So
Article
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Accepted:
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Abstract

A Ku-band gyrotron traveling-wave-tube (gyro-TWT) amplifier was investigated. To obtain a wide operating bandwidth, we used a two-stage tapered rectangular waveguide interaction circuit. An electron beam of 27 keV and 3.56 A was produced from a double-anode magnetron-injection-gun (MIG). The measured frequency bandwidth over 10 dB gain in the linear operation region was found to be 18%. The gyro-TWT’s saturated output power was 14.9 kW at 14.4 GHz, corresponding to a saturated output power gain of 27.4 dB and an efficiency of 15.5%. The measured experimental results were in agreement with those of non-linear numerical simulations.

Keywords

Gyro-TWT Wide bandwidth 2D PIC code Ku band 
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Copyright information

© The Korean Physical Society 2015

Authors and Affiliations

  • Sang Wook Jung
    • 1
  • Han Seul Lee
    • 1
  • Kwang Ho Jang
    • 1
  • Jin Joo Choi
    • 1
  • Joon Ho So
    • 1
  1. 1.Department of Electronics Convergence EngineeringKwangwoon UniversitySeoulKorea

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