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Design of a Ka-band gyro-TWT amplifier for broadband operation

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4816691· OSTI ID:22227973
;  [1];  [2]
  1. Microwave Tubes Area, CSIR-Central Electronics Engineering Research Institute, Pilani 333031 (India)
  2. Department of Physics, Devi Ahilya Vishwavidyalaya, Indore (India)

In this paper, the design of a Ka-band periodically ceramic loaded gyro-TWT amplifier has been carried out. The design predict that the interaction structure can produce more than 80 kW output power, 50 dB saturated gain, and 3 dB bandwidth for 65 kV and 5 A electron beam with velocity ratio (α) of 1.2. This paper describes the design and simulation of a high performance 35 GHz TE{sub 01} mode gyro-TWT that applies the same technique of employing a periodic dielectric loaded interaction structure to achieve stability and wide bandwidth. The design of input coupler with loaded interaction structure for Ka-band Gyro-TWT has been carried out using Ansoft hfss. The return loss (S{sub 11}) and transmission loss (S{sub 21}) of the Ka-band gyro-TWT input coupler have been found to be −27.3 dB and −0.05 dB, respectively. The design of output window for Ka-band Gyro-TWT has been carried out using cst microwave studio.

OSTI ID:
22227973
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 20; ISSN PHPAEN; ISSN 1070-664X
Country of Publication:
United States
Language:
English