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Improvements in performance of broadband helix traveling-wave tubes.

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Improvements in performance of broadband helix traveling-wave tubes. / Ghosh, Tushar K.; Challis, Anthony J.; Jacob, Alan et al.
In: IEEE Transactions on Electron Devices, Vol. 55, No. 2, 02.2008, p. 668-673.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Ghosh, TK, Challis, AJ, Jacob, A, Bowler, D & Carter, RG 2008, 'Improvements in performance of broadband helix traveling-wave tubes.', IEEE Transactions on Electron Devices, vol. 55, no. 2, pp. 668-673. https://doi.org/10.1109/TED.2007.913006

APA

Ghosh, T. K., Challis, A. J., Jacob, A., Bowler, D., & Carter, R. G. (2008). Improvements in performance of broadband helix traveling-wave tubes. IEEE Transactions on Electron Devices, 55(2), 668-673. https://doi.org/10.1109/TED.2007.913006

Vancouver

Ghosh TK, Challis AJ, Jacob A, Bowler D, Carter RG. Improvements in performance of broadband helix traveling-wave tubes. IEEE Transactions on Electron Devices. 2008 Feb;55(2):668-673. doi: 10.1109/TED.2007.913006

Author

Ghosh, Tushar K. ; Challis, Anthony J. ; Jacob, Alan et al. / Improvements in performance of broadband helix traveling-wave tubes. In: IEEE Transactions on Electron Devices. 2008 ; Vol. 55, No. 2. pp. 668-673.

Bibtex

@article{0e22aa42f4a2435db08269109931e716,
title = "Improvements in performance of broadband helix traveling-wave tubes.",
abstract = "The effectiveness of positive phase velocity tapering to improve the performance of a broadband helix traveling-wave tube (TWT) has been investigated. A large-signal model of an existing 4.5-18 GHz two-section mini-TWT with uniform pitch has been validated against the experimental results, and used as a starting point to design and develop a number of TWTs with different taper lengths. Comparisons between the experimental results of uniform pitch TWT and positively tapered TWTs show significant improvements in output power, electronic efficiency, and second harmonic content throughout the operating frequency band for the positively tapered TWTs. Increases in electronic efficiency and output power up to 5.2% points and 50 W (1.7 dB), respectively, have been achieved.",
author = "Ghosh, {Tushar K.} and Challis, {Anthony J.} and Alan Jacob and Darrin Bowler and Carter, {Richard G.}",
note = "{"}{\textcopyright}2008 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.{"}",
year = "2008",
month = feb,
doi = "10.1109/TED.2007.913006",
language = "English",
volume = "55",
pages = "668--673",
journal = "IEEE Transactions on Electron Devices",
issn = "0018-9383",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2",

}

RIS

TY - JOUR

T1 - Improvements in performance of broadband helix traveling-wave tubes.

AU - Ghosh, Tushar K.

AU - Challis, Anthony J.

AU - Jacob, Alan

AU - Bowler, Darrin

AU - Carter, Richard G.

N1 - "©2008 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."

PY - 2008/2

Y1 - 2008/2

N2 - The effectiveness of positive phase velocity tapering to improve the performance of a broadband helix traveling-wave tube (TWT) has been investigated. A large-signal model of an existing 4.5-18 GHz two-section mini-TWT with uniform pitch has been validated against the experimental results, and used as a starting point to design and develop a number of TWTs with different taper lengths. Comparisons between the experimental results of uniform pitch TWT and positively tapered TWTs show significant improvements in output power, electronic efficiency, and second harmonic content throughout the operating frequency band for the positively tapered TWTs. Increases in electronic efficiency and output power up to 5.2% points and 50 W (1.7 dB), respectively, have been achieved.

AB - The effectiveness of positive phase velocity tapering to improve the performance of a broadband helix traveling-wave tube (TWT) has been investigated. A large-signal model of an existing 4.5-18 GHz two-section mini-TWT with uniform pitch has been validated against the experimental results, and used as a starting point to design and develop a number of TWTs with different taper lengths. Comparisons between the experimental results of uniform pitch TWT and positively tapered TWTs show significant improvements in output power, electronic efficiency, and second harmonic content throughout the operating frequency band for the positively tapered TWTs. Increases in electronic efficiency and output power up to 5.2% points and 50 W (1.7 dB), respectively, have been achieved.

U2 - 10.1109/TED.2007.913006

DO - 10.1109/TED.2007.913006

M3 - Journal article

VL - 55

SP - 668

EP - 673

JO - IEEE Transactions on Electron Devices

JF - IEEE Transactions on Electron Devices

SN - 0018-9383

IS - 2

ER -