Design, Beam-Wave Interaction, and Efficiency Enhancement Studies of Millimeter Wave Gyro-TWT With a Three-Stage Depressed Collector
In: IEEE Transactions on Plasma Science, Jg. 48 (2020-06-01), S. 1930-1935
Online
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Zugriff:
In this article, a $W$ -band gyrotron traveling wave tube (gyro-TWT) amplifier that uses periodically dielectric-loaded (PDL) waveguide and operates in TE01 mode is designed and studied for its stability against backward wave oscillations and beam wave interaction behavior. The subassemblies including a magnetron injection gun using E-GUN code, RF output window, and electron collector using “MAGIC 3-D” are investigated. The present particle-in-cell (PIC) simulation of millimeter-wave gyro-TWT results in a peak RF power ~195 kW in TE01 mode with an electronic efficiency of ~28% and a saturated gain of ~63 dB. Further, the overall efficiency of the device is enhanced by using a three-stage depressed collector, which is designed and simulated using “MAGIC 3-D. ” The collection efficiency of the present collector is calculated as ~74% and the overall efficiency of the gyro-TWT is improved to ~60%.
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Design, Beam-Wave Interaction, and Efficiency Enhancement Studies of Millimeter Wave Gyro-TWT With a Three-Stage Depressed Collector
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Autor/in / Beteiligte Person: | Akash ; Thottappan, Muthiah |
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Zeitschrift: | IEEE Transactions on Plasma Science, Jg. 48 (2020-06-01), S. 1930-1935 |
Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2020 |
Medientyp: | unknown |
ISSN: | 1939-9375 (print) ; 0093-3813 (print) |
DOI: | 10.1109/tps.2020.2978792 |
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