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Design and simulation of the loaded waveguide interaction part for millimeter wave Gyro-TWT amplifier has been reported. The cold parameters of the waveguide interaction structure like dispersion and interaction impedance have been computed by commercially available software CST Microwave studio. The bandwidth enhancement technique for a Gyro-TWT at high power and gain by loading the highly lossy rings in the waveguide has been presented in this paper. The design approach of dielectric loaded waveguide interaction structure has been described. A new type and advance dielectric lossy material (AlN-SiC) rings has been used to enhance the bandwidth characteristics of the Gyro-TWT amplifier. PIC simulation predicts that the peak power 80 kW at Ka-band in the dielectric loaded Gyro-TWT for 65 kV beam voltage and 10A beam current.

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Simulation of Dielectric Loaded Interaction Structure for Ka-Band Gyro-TWT Amplifier

  • 会议论文

  • 发表日期：

    2025年

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  • Anju Kumari,
  • Kamlesh,
  • M. K. Alaria,
  • S. K. Ghosh

摘要

Design and simulation of the loaded waveguide interaction part for millimeter wave Gyro-TWT amplifier has been reported. The cold parameters of the waveguide interaction structure like dispersion and interaction impedance have been computed by commercially available software CST Microwave studio. The bandwidth enhancement technique for a Gyro-TWT at high power and gain by loading the highly lossy rings in the waveguide has been presented in this paper. The design approach of dielectric loaded waveguide interaction structure has been described. A new type and advance dielectric lossy material (AlN-SiC) rings has been used to enhance the bandwidth characteristics of the Gyro-TWT amplifier. PIC simulation predicts that the peak power 80 kW at Ka-band in the dielectric loaded Gyro-TWT for 65 kV beam voltage and 10A beam current.