Microwaves pp 640-646 | Cite as

Efficiency enhancement by phase focusing and collector depression

  • Joseph E. Rowe


Nonlinear calculations [1], [2], [3] of the el ectron-wave interaction process in TWA’ s, klystrons and BWo’ S have permitted the calculation of interaction efficiencies along with information about the energy state of the spent beam. These calculations have been primarily concerned with the r. f. interaction process and have not considered the effects of collector depression on the overall efficiency of the particular device. In this paper the effect of collector depression on device efficiency is studied theoretically and calculations are presented for the TWA and the BWO under a variety of operating conditions.


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  1. [1]
    ROWE, J. E., A Large-Signal Analysis of the Travelling-wave Amplifier: Theory and General Results, Trans. PGED-IRE, Vol. ED-3, No. 1, pp. 39–57; January, 1956.Google Scholar
  2. [2]
    ROWE, J.E., One-Di mensional Travelling-Wave Tube Analyses and the Effect of Radial Electric Field Variations, Trans. PGED-IRE, Vol. ED-7, No. 1, pp. 16–22; January, 1960.Google Scholar
  3. [3]
    ROWE, J.E., Analysis of Non-linear 0-Type Backward- Wav e Oscillators, Proc. Symp. on Electronic Waveguides, Polytechnic Institute of Brooklyn, pp. 315–338; April, 1958.Google Scholar
  4. [4]
    MEEKER, J. G. and ROWE, J.E., Phase Focussing in Linear-Beam Devices, Trans.PGED-IRE, Vol. ED-9, No. 3, pp. 257–266; May, 1962.Google Scholar

Copyright information

© N.V. Uitgeversmaatschappij Centrex 1963

Authors and Affiliations

  • Joseph E. Rowe
    • 1
  1. 1.The University of MichiganAnn ArborUSA

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