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Design of helix slow-wave structures for high efficiency TWTs.

Srivastava, V. and Carter, Richard G. and Ravinder, B. and Sinha, A. K. and Joshi, S. N. (2000) Design of helix slow-wave structures for high efficiency TWTs. IEEE Transactions on Electron Devices, 47 (12). pp. 2438-2443. ISSN 0018-9383

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    Abstract

    TWTs for space applications commonly have a helix pitch profile which incorporates a section with increased phase velocity followed by a negative phase velocity taper. A simple method is described for the initial design of a helix slow-wave structure of this kind to achieve high overall efficiency. It is shown that the use of a section with increased phase velocity increases the beam efficiency of a TWT while reducing the generation of second harmonic power. The technique is illustrated by its application to a 70 W Ku-band TWT and the performance is shown to be comparable with that of an existing TWT.

    Item Type: Article
    Journal or Publication Title: IEEE Transactions on Electron Devices
    Additional Information: ©2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE." "This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
    Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
    Departments: Faculty of Science and Technology > Engineering
    ID Code: 26814
    Deposited By: Prof Richard G. Carter
    Deposited On: 27 Jul 2009 10:15
    Refereed?: Yes
    Published?: Published
    Last Modified: 24 Jan 2014 05:17
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/26814

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