Resonant coaxial cavities for a grid vacuum tube

Details Resonant coaxial cavities for a grid vacuum tube Resonant coaxial cavities for a grid vacuum tube

1983-12-16

1986-02-18

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Distributed parameter resonator-type magnetron

331101, 330 45, H01J 746, H01J 1980

Patent

active

045715254

ABSTRACT:
The means providing capacitive decoupling between the inside cylinder and a grid electrode are disposed at about one fourth of the wavelength of the highest operating frequency from the tube end of the inside cylinder. This is a current node, and dielectric losses at the highest frequency are thus greatly reduced. The match is less good at lower frequencies, but the corresponding dielectric losses are much less at lower frequencies. The first piston provides capacitive coupling between the first and second cavities whereby the entire outside cylinder may be maintained at ground potential.

REFERENCES:
patent: 2434115 (1948-01-01), McArthur
patent: 2642533 (1953-06-01), Preist
patent: 2681997 (1954-06-01), Haeff et al.
patent: 2828438 (1958-03-01), McArthur
patent: 2948858 (1960-08-01), Stameson
patent: 4119921 (1978-10-01), Warringa et al.
The Radio and Electronic Engineer, vol. 45, No. 6, Jun. 1975, C. A. Jeness: "A 150-MHz Coaxial Line Radar Transmitter for the Study of Radar Aurora", pp. 311-319* pp. 312-314, paragraph 3.1.2; pp. 318-319; paragraph 7*.

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