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Research on non-linear beam-wave interaction of W-band Gyro-TWT with helical waveguide

Xue Zhi-Hao Liu Pu-Kun Du Chao-Hai

Research on non-linear beam-wave interaction of W-band Gyro-TWT with helical waveguide

Xue Zhi-Hao, Liu Pu-Kun, Du Chao-Hai
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  • PDF Downloads:  562
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  • Received Date:  29 February 2012
  • Accepted Date:  09 January 2014
  • Published Online:  05 April 2014

Research on non-linear beam-wave interaction of W-band Gyro-TWT with helical waveguide

  • 1. th Institute of Chinese Electronics Technology Group, Shijiazhuang 050000, China;
  • 2. School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant Nos. 61072024, 60971072).

Abstract: Gyro-TWT is one of the most promising candidates for the transmitter microwave source of the next generation imaging radar; meanwhile, it plays an important role in national security. Gyro-TWT with helical waveguide is capable of generating broad-bandwidth radiation and highly stable. In this paper, we derive the dispersion equation of helical waveguide and the non-linear theory for calculating the beam-wave interaction. Numerical stimulations basically accord with the experimental results. We design a W-band Gyro-TWT operating with a 80 keV, 5 A electron beam, producing an output power of 142 kW with 3 dB bandwidth 4.5%, central frequency 95 GHz, and saturation gain 52 dB. In the end, we calculate the effects of the changes of voltage, current and input power on the output performance of Gyro-TWT.

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