Amplifiers – With electron beam tube amplifying device – Having electrode coupled to cavity resonator
Patent
1996-11-29
1999-01-05
Pihulic, Daniel T.
Amplifiers
With electron beam tube amplifying device
Having electrode coupled to cavity resonator
315 5, 315 539, H01J 2500
Patent
active
H00017710
ABSTRACT:
The present invention is a coupled cavity gyrotron-traveling-wave-tube amplifier which produces highly efficient, broad band millimeter wave radiation. The present invention comprises an electron gun, a double ridged coupled cavity interaction circuit and a beam collector. In operation the gun injects a gyrating electron beam through a beam tunnel of a side wall of the coupled cavity. When the electron beam phase is synchronized with the rf phase of the transverse electric mode in the coupled cavity circuit, the electron beam is modulated and amplifies the rf input signal through the negative mass instability called electron cyclontron instability. The coupled cavity design of the interaction circuit effctively slows the rf-wave velocity, allowing amplification of the rf- wave over a broad band. This t ype of broad band microwave energy is highly useful in radar, communications and jamming technology.
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Chy, K.R. et al; "Characteristies and Optimum Operating Parameters of a Gyrotron Travelling Wave Amplifier"; IEEE Trans of Microwave Theory & Technique; vol. MTT27, No. 2; Feb. 1979, pp. 178-187.
Shively, J.F. et al; "Developement of a 200KW, 60 GHz Gyrotron"; Int'l Electron Devices Meeting; Washington D.C. 7-9 Dec 1980; pp. 186-188.
Armstrong Carter M.
Choi Jin Joo
Park Gun-sik
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