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The paper describes simulation and design of a W-band gyrotron oscillator operating in the circular TE03 mode at the third cyclotron harmonic. A self-consistent nonlinear code and a particle-in-cell (PIC) software were used to investigate the beam-wave interaction. Results of PIC simulations show that the gyrotron oscillator can generate peak power of 12kW at 93.57GHz when utilized a 35kV, 4A, ν ⊥...
The design of a 140GHz gyrotron oscillator operated in the circular TE22,6 mode is presented. Results of simulations with nonlinear theory code show that the gyrotron can generate peak power of 1.6MW at 140GHz when utilized a 80kV, 40A, ν⊥/ν∥=1.4 electron beam, and the gyrotron operates stably in the operating mode.
The paper describes simulation and design of a W-band gyrotron oscillator operated in TE03 mode at the third cyclotron harmonic. A self-consisten nonlinear code and a particle-in-cell (PIC) software were used to investigate the beam-wave interaction. Results of simulations show that the gyrotron can generate peak power of 110kW at 93.6GHz when utilized a 40kV, 12A, ν⊥/ν∥=1.5 electron beam from a magnetron...
The design of a 94GHz gyrotron oscillator operating in the circular TE02-TE03 mode at the second cyclotron harmonic is presented. Results of simulations with particle-in-cell code show that the gyrotron can generate saturated peak power of 26.6kW with 26.6% efficiency at 94GHz when utilized a 25kV, 4A, v⊥/v‖=1.6 electron beam from a magnetron injection gun, and the results of simulations show the...
The loss characteristics of several loss materials to the backward-wave oscillations modes TE11, TE21 and the operating mode TE01 in Gyrotron traveling wave tube amplifier (Gyro-TWT) are presented in this paper. Effects of these loss materials on the output characteristics of Gyro-TWT are analyzed according to the experimental measurements.
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