Advertisement

Microwaves pp 186-196 | Cite as

Recent advances in non re-entrant crossed-field forward-wave amplifiers

  • J. F. Hull
  • G. E. Pokorny
  • G. P. Kooyers
  • P. N. Hess
  • E. K. Shaw
Chapter

Abstract

Since the late 1940’s when the first significant work was done on crossed-field amplifiers [l], they have generally had the reputation of being relatively low gain devices. Until recently, most of the work or this type of device has been done on tubes of circular format which suffer from problems of gain stability because of the many modes of electromagnetic and electronic feedback from output to input. Recent work on the linear form of the injected-beam forward-wave crossed-field amplifier has greatly reduced the problem and promises to put this device into the high gain class along with klystrons and traveling-wave tubes. Noise on the beam will be the chief limiting factor in the gain attainable in crossed-field amplifiers. Recent tests have shown that at least 40 dB gain can be achieved before such effects become notice-abl e.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    R. WARNECKE, W. KLBEN, A. LERBS. O. DOEHLER and H. HUBER, The Magnetron Type Traveling-Wave Amplifier Tube, Proc. IRE, Vol. 38, pp. 486–495, May 1960CrossRefGoogle Scholar
  2. [2]
    R.W. GOULD, Space Charge Effe cts in Beam-Type Magnetrons, J. Appl. Physics, Vol. 28, No. 5, pp. 599–605, May 1957MATHCrossRefGoogle Scholar
  3. [3]
    J.R. HECHTEL, Accuracy and Limitation of the Resistor Network used for Solving Laplace’s and Poisson’s Equations, Proc. IRE, Vol. 49, No. 5, pp. 933–940, May 1961MathSciNetCrossRefGoogle Scholar
  4. [4]
    W.C. BROWN, Descript ion and ope rat ing Character-istics of the Platinatron — A New Microwave Tube Device, Proc. IRE, Vol. 45, pp. 1209–1222, September 1957CrossRefGoogle Scholar
  5. [5]
    J. FEINSTEIN and R. J. COLLIER, Wavegu ide-Coupled Crossed-FieldAmplifier, Crossed Field Devices, Academic Press, New York, 1961, Vol. II, Chapter 4.3Google Scholar
  6. [6]
    J.F. HULL, High Power Magnetron Amplifiers, Signal Corps Engrg. Labs, Fort Monmouth, N.J., Tech. Memo No. M-1450, SC Project No. 322A, June 1952Google Scholar
  7. [7]
    J. DAIN, Magne tron Amplifiers, presented at the Conference on Electron Tube Research, Bounder, ColoradoGoogle Scholar
  8. [8]
    G.E, POKORNY, A.E. KUSHNICK and J.F. HULL. The Dematron — A New Crossed-Field Amplifier, Trans. PGED, July 1962Google Scholar

Copyright information

© N.V. Uitgeversmaatschappij Centrex 1963

Authors and Affiliations

  • J. F. Hull
    • 1
  • G. E. Pokorny
    • 1
  • G. P. Kooyers
    • 1
  • P. N. Hess
    • 1
  • E. K. Shaw
    • 1
  1. 1.Research Laboratory, Litton Electron Tube CorporationSan CarlosUSA

Personalised recommendations