This paper presents a performance comparison for a W-band Folded Waveguide Traveling Wave Tube (FWTWT) operating at 13.3 kV, using circular and square electron beams. Simulations conducted by CST Studio Suite ™ reveal that the square beam configuration offers superior performance, achieving a saturated output power of 78 W, a 1 dB bandwidth of 5 GHz, a gain of 41.8 dB, and an efficiency of 5%.
Traina, E., Comparato, G., Sottile, V., Paterna, G., Muratore, A., Stivala, S., et al. (2025). Performance Comparison between Round and Square Beam for a Low-Voltage W-Band Folded Waveguide TWT. In 2025 26th International Vacuum Electronics Conference, IVEC 2025 (pp. 1-3). Institute of Electrical and Electronics Engineers Inc. [10.1109/ivec63678.2025.11115773].
Performance Comparison between Round and Square Beam for a Low-Voltage W-Band Folded Waveguide TWT
Traina, Eleonora;Comparato, Giorgia;Sottile, Vincenzo;Paterna, Giuseppe;Muratore, Antonino;Stivala, Salvatore;Livreri, Patrizia;Busacca, Alessandro
2025-01-01
Abstract
This paper presents a performance comparison for a W-band Folded Waveguide Traveling Wave Tube (FWTWT) operating at 13.3 kV, using circular and square electron beams. Simulations conducted by CST Studio Suite ™ reveal that the square beam configuration offers superior performance, achieving a saturated output power of 78 W, a 1 dB bandwidth of 5 GHz, a gain of 41.8 dB, and an efficiency of 5%.
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