In this paper, the design of a V-band high-performance folded-waveguide Traveling Wave Tube amplifier for next-generation high data-rate satellite communication systems is presented. The folded waveguide shows a flat dispersion diagram and a high interaction impedance of about 5.95 Ω at the 49 GHz central frequency under a cathode voltage and a beam current of 20.6 kV and 300 mA, respectively. Good performance in terms of output gain with a maximal value of 45 dB at the lower frequency of 47 GHz is obtained. COSMIC 1D large-signal analysis results are in good agreement with the simulated 3D PIC results. The TWT reaching a 5 GHz bandwidth with an almost constant maximum output power of about 600 W represents the best candidate for future uplink applications.

Livreri P. (2021). High-performance V-band Folded Waveguide TWT for satellite communication systems. In 2021 IEEE 22nd International Vacuum Electronics Conference, IVEC 2021 (pp. 1-2) [10.1109/IVEC51707.2021.9722398].

High-performance V-band Folded Waveguide TWT for satellite communication systems

Livreri P.
2021

Abstract

In this paper, the design of a V-band high-performance folded-waveguide Traveling Wave Tube amplifier for next-generation high data-rate satellite communication systems is presented. The folded waveguide shows a flat dispersion diagram and a high interaction impedance of about 5.95 Ω at the 49 GHz central frequency under a cathode voltage and a beam current of 20.6 kV and 300 mA, respectively. Good performance in terms of output gain with a maximal value of 45 dB at the lower frequency of 47 GHz is obtained. COSMIC 1D large-signal analysis results are in good agreement with the simulated 3D PIC results. The TWT reaching a 5 GHz bandwidth with an almost constant maximum output power of about 600 W represents the best candidate for future uplink applications.
978-1-6654-4105-6
Livreri P. (2021). High-performance V-band Folded Waveguide TWT for satellite communication systems. In 2021 IEEE 22nd International Vacuum Electronics Conference, IVEC 2021 (pp. 1-2) [10.1109/IVEC51707.2021.9722398].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/566822
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