Analytical Studies of a Five-Cavity, 140 GHz Gyroklystron Amplifier

In the present paper, five cavity gyroklystron amplifier has been analyzed for its performance evaluation in terms of output power, gain and bandwidth using nonlinear theory of gyroklystron amplifier. All the cavities of the present gyroklystron operate in the fundamental harmonic at 140 GHz, the operating mode of all five cavities is TE₀₂ mode. The dependence of output power, gain and electronic efficiency on input power and frequency has been analyzed. From the nonlinear analysis the output power is obtained 109 W with 45 dB gain and bandwidth is 0.42% for 15 kV, 0.15 A gyrating electron beam having pitch factor 1.5. The obtained results have been validated with the earlier reported results in the literature.