3D beam-wave interaction study in a dielectric loaded W-band gyro-TWT using MAGIC

dc.contributor.author	Akash; Thottappan M.
dc.date.accessioned	2025-05-24T09:31:50Z
dc.description.abstract	In this paper, Particle-in-Cell (PIC) simulation study of a lossy dielectric loaded gyrotron travelling wave tube (gyro-TWT) amplifier operating in W-band is presented. The RF interaction region is loaded uniformly with a lossy dielectric to attenuate the potential backward wave oscillations (BWO's) caused by competing modes including the fundamental harmonic TE11, TE21, and second harmonic TE02 modes. The complete RF interaction circuit of gyro-TWT is simulated using 3D PIC code "MAGIC" to study its beam-wave interaction behaviour. The simulation predicted a peak RF power of ~190kW in a fundamental TE01 mode with a conversion efficiency of ~30% and a high gain of ~63dB for a non-spread gyrating 70kV, 9A electron beam. © 2018 IEEE.
dc.identifier.doi	https://doi.org/10.1109/IMaRC.2018.8877174
dc.identifier.uri	http://172.23.0.11:4000/handle/123456789/17463
dc.relation.ispartofseries	IEEE MTT-S International Microwave and RF Conference, IMaRC 2018
dc.title	3D beam-wave interaction study in a dielectric loaded W-band gyro-TWT using MAGIC

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