Klystron with cavities arranged in different blocks for providin

Details Klystron with cavities arranged in different blocks for providin Klystron with cavities arranged in different blocks for providin

1991-08-16

1993-07-06

Mottola, Steven

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 551, 315 516, H01J 2510

Patent

active

052257398

ABSTRACT:
A klystron with widened instantaneous passband comprises a succession of cavities separated by drift tubes, divided into three blocks. The first block comprises all that is upline from a first central cavity, the third block comprises all that is downline from a second central cavity and the second block comprises the central cavities. In each block, the sum of the lengths of the drift tubes is equal to: H+(T.times.180.degree.). H is a quantity ranging from 45 to 135 plasma degrees and T is an integer greater than or equal to zero. In at least one of the blocks, T is greater than or equal to one and the length of at least one tube of this block is greater than or equal to 135 plasma degrees. The disclosed device can be applied to wideband klystrons.

REFERENCES:
patent: 3195007 (1965-07-01), Watson et al.
patent: 3594606 (1971-07-01), Lien
patent: 3775635 (1973-11-01), Faillon et al.
patent: 3819977 (1974-06-01), Kageyama
patent: 4284922 (1981-08-01), Perring et al.
patent: 4558258 (1985-12-01), Miyake
NEC Research and Development, No. 1, Jan. 1986, Tokyo, Japan, pp. 101-107, Takashi Nagashima, et al., "Super-High-Power Klystron for the JT-60".
Japanese Abstract, vol. 1, No. 18, (E-003), Mar. 24, 1977, JP-A-51 115768, Takao Kageyama, Dec. 10, 1976, "Wide-Band Speed Modurated Tube".

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