Research and Development of Traveling Wave Tubes with Planar Microstrip Slow-Wave Structures on Dielectric Substrates

In this paper, we present the results of development and research of planar microstrip slow-wave structures (SWSs) on dielectric substrates for miniature low-voltage O -type traveling-wave tubes (TWTs) of the sub-terahertz frequency band. The main electromagnetic parameters of meander-line SWSs of v...

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Bibliographic Details
Published in:Journal of communications technology & electronics 2022-10, Vol.67 (10), p.1231-1236
Main Authors: Torgashov, R. A., Starodubov, A. V., Rozhnev, A. G., Ryskin, N. M.
Format: Article
Language:English
Subjects:
Communications Engineering
Dielectrics
Electric potential
Electromagnetism
Engineering
Industrial research
Laser ablation
Magnetron sputtering
Networks
Parameters
Plasma physics
R&D
Research & development
Substrates
Technology application
Terahertz frequencies
TO THE 85th ANNIVERSARY OF N.I. SINITSYN
Traveling wave tubes
Traveling waves
Voltage
Wave interaction
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Summary:In this paper, we present the results of development and research of planar microstrip slow-wave structures (SWSs) on dielectric substrates for miniature low-voltage O -type traveling-wave tubes (TWTs) of the sub-terahertz frequency band. The main electromagnetic parameters of meander-line SWSs of various frequency bands (V-,W-,D-band) are studied. Using technology based on magnetron sputtering and laser ablation, samples of SWSs were fabricated and their S -parameters were measured. A three-dimensional simulation of the beam-wave interaction in a V-band TWT was performed. It is shown that at a beam current of 100 mA and a voltage of 5 kV, the gain can reach 33 dB while the power in the saturation mode is 23 W.
ISSN:1064-2269
1555-6557
DOI:10.1134/S1064226922100138