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The multimode beam wave interaction behavior in a three-cavity, W-band gyroklystron amplifier is studied using nonlinear, time-dependent, multimode analysis. The gyroklystron amplifier operates in the fundamental harmonic, higher order TE021 mode. The presented theory is used to study the concept of mode competition. A peak output power of around 330 kW at 93.2 GHz, an electronic efficiency of 25%,...
A three dimensional particle-in-cell code MAGIC-3D is used to examine the output performance of a partially dielectric loaded A6 relativistic magnetron. The side resonators of the resonant structure are loaded symmetrically at angle of 120 with low-loss dielectric material. The simulation of dielectric loaded A6 relativistic magnetron is performed for -mode of operation. The formation...
In this paper, the self-consistent large-signal formulation is used to study the beam-wave interaction mechanism in a gyrotron oscillator. The nonlinear interaction has been computed by solving the set of self-consistent nonlinear equations along the interaction length using numerical method. Consequently, the computation of energy, phase, output power, and efficiency of a gyrotron is made. The computed...
A three dimensional particle-in-cell (PIC) code, MAGIC3D, is used to examine the performance improvement in a relativistic magnetron by perturbing technique. Asymmetrical metal rods of different length have been used to perturb the magnetic field in the annular sector of the resonant system. Enhancement up to 45% in the radiated output power has been obtained in the perturbed magnetic field case over...
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