Rf feedthrough

Details Rf feedthrough Rf feedthrough

1994-11-28

1996-04-16

Lee, Benny

Wave transmission lines and networks

Coupling networks

With impedance matching

333260, 333246, H03H 738, H01P 104

Patent

active

055086667

ABSTRACT:
The present invention provides an improved rf feedthrough connector having a first section (12) in which a inner conductor (18) is spaced from a co-axial outer conductive shield (16) by a cylindrical insulating dielectric layer (22). A second section (14) has a second inner conductor (28) which is electrically coupled to the first inner conductor (18). A second outer shield (34) is spaced from the second inner conductor by a semi-cylindrical insulating dielectric layer (30). The inner radius (R1) of the first outer shield (16) is different from the inner radius (R3) of the second outer shield (26). Given the properties of the material forming the first and second dielectric layers, (22) and (30), these radii are selected so as to provide a uniform impedance in both the first (12) and second (14) sections of the feedthrough connector (10).

REFERENCES:
patent: 4487999 (1984-12-01), Baird et al.
patent: 4724409 (1988-02-01), Lehman
patent: 4810981 (1989-03-01), Herstein
Microwave Transmission Design Data, Sperry Gyroscope Co. Great Neck, Long Island, N.Y. pp. 2-3 1954.

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