High voltage RF feedthrough bushing

Details High voltage RF feedthrough bushing High voltage RF feedthrough bushing

1982-09-03

1984-11-20

Lieberman, Eli

Electricity: conductors and insulators

With fluids or vacuum

Current conductive fluid and/or vacuum

174 15BH, 174 31R, 174142, H01B 1726, H01B 1742

Patent

active

044840195

ABSTRACT:
Described is a multi-element, high voltage radio frequency bushing for trmitting RF energy to an antenna located in a vacuum container. The bushing includes a center conductor of complex geometrical shape, an outer coaxial shield conductor, and a thin-walled hollow truncated cone insulator disposed between central and outer conductors. The shape of the center conductor, which includes a reverse curvature portion formed of a radially inwardly directed shoulder and a convex portion, controls the uniformity of the axial surface gradient on the insulator cone. The outer shield has a first substantially cylindrical portion and a second radially inwardly extending truncated cone portion.

REFERENCES:
patent: 3440326 (1969-04-01), Lair
patent: 3902000 (1975-08-01), Forsyth et al.

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