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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: Article
Journal or Publication Title: IEEE Transactions on Electron Devices
Uncontrolled Keywords: Dielectric rod ; dispersion ; slow-wave structure (SWS) ; traveling-wave tubes (TWTs)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Engineering
ID Code: 56545
Deposited By: ep_importer_pure
Deposited On: 07 Aug 2012 14:23
Refereed?: Yes
Published?: Published
Last Modified: 22 Oct 2014 16:28
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/56545

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