Analysis of dielectric rods with arbitrary shape for low-dispersion slow-wave structures in helix TWTs

Paoloni, C (2006) Analysis of dielectric rods with arbitrary shape for low-dispersion slow-wave structures in helix TWTs. IEEE Transactions on Electron Devices, 53 (6). pp. 1490-1493. ISSN 0018-9383

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Abstract

The introduction of rods with optimized cross-sectional shape in slow-wave structures (SWSs) for wideband helix traveling-wave tubes can sensibly improve the dispersion maintaining an adequate interaction-impedance level. In this brief, a procedure for analyzing helix SWSs loaded with rods of arbitrary shape, by using an analysis method adopting the inhomogeneous dielectric loading approach, is proposed. The advantages, in terms of SWS-dispersion improvement, of adopting optimized rod shapes in comparison to the typical rod shapes (i.e., rectangular, circular, and T-shaped) utilized up to now, are also demonstrated.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Transactions on Electron Devices
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/ta
Subjects:
ID Code:
56545
Deposited By:
Deposited On:
07 Aug 2012 13:23
Refereed?:
Yes
Published?:
Published
Last Modified:
07 Jan 2020 03:40