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The recent experimental results of a Ka-band second harmonic gyroklystron amplifier are presented. The peak output power of 212kW at 35GHz has been measured with a 3dB bandwidth of 155MHz. The tube is operated at electron beam voltage and current of 58 kV and 23 A, respectively. The efficiency is approximately 16% and the gain is about 24 dB.
A Ka-band gyrotron traveling wave amplifier operating in the TE11 circular mode has been presented. The effects of the parameters such as input power, driver frequency and velocity ratio on the performance of the gyro-TWT ares discussed. The simulation results show that the gain and the bandwidth of the designed Ka-band gyro-TWT is about 54.0 dB and 2.5 GHz with 3 dB bandwidth respectively. The peak...
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