Study of electrodynamic parameters of the planar meander slow-wave structures for THz band traveling wave tubes

Benedik, Andrey I.; Rozhnev, A. G.; Ryskin, Nikita M.; Torgashov, G.V.; Синицын, Н. И.; Bushuev, Nikolay A.; Шалаев, П. Д.

doi:10.1109/ivec.2015.7223750

Cited by 18 publications

(2 citation statements)

References 4 publications

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“…Important planar RF SWS that are recently being reported for a 0.22-THz TWT are: (i) staggered double-vane loaded rectangular waveguide SWS [6][7][8][9][10], (ii) meander line loaded rectangular waveguide SWS [11], (iii) Sine waveguide SWS [12], (iv) corrugated waveguide SWS [13], (v) H-plane and E-plane loaded rectangular waveguide SWS [14], (vi) single and double grating type SWS [15][16]. The staggered double-vane (on E-plane) loaded rectangular waveguide SWS, as shown in Fig.1 for a unit cell, is selected for the present design of a wideband 0.22 THz 100W TWT because it has wide bandwidth and high interaction impedance.…”

Section: Analytical Design Of Planar Rf Swsmentioning

confidence: 99%

Design of a Broadband Planar RF Structure for a 0.22 THz Travelling Wave Tube

Srivastava¹,

Sharma²

2017

ujeee

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Planar broadband THz travelling wave tube is being designed for ultra broadband high speed data rate communication and imaging. A simplified analytical approach is developed for designing of a planar staggered double vane rectangular waveguide slow-wave structure (SDVSWS) for a broadband 0.22 THz 100W TWT. The structure is inherently compatible for sheet beam operation, and it is designed for an electron beam of voltage 20 kV and current 50 mA. 3D e.m. field simulator code CST-MWS was used for simulating the SDVSWS using the analytical design parameters. It is found that the dispersion characteristic by the analytical method matches well within 5% with the simulated dispersion characteristic of the structure. Effects of various parameters of a double-vane SWS on dispersion and impedance characteristics are evaluated for achieving a planar TWT of bandwidth more than 40 GHz with high gain. It is shown that pitch and vane height are most significant parameters and half-period staggering of double vanes in the structure provides wider bandwidth, high impedance and high symmetric RF electric field for efficient beam-wave interaction.

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Section: Analytical Design Of Planar Rf Swsmentioning

confidence: 99%

Design of a Broadband Planar RF Structure for a 0.22 THz Travelling Wave Tube

Srivastava¹,

Sharma²

2017

ujeee

View full text Add to dashboard Cite

show abstract

“…We have developed the meander-line SWS at G-band (180-230 GHz) [5,6]. For the fabrication, copper films with 1 Pm thickness were sputtered over quartz and polycor substrates.…”

Section: G-band Meander-line Swsmentioning

confidence: 99%