Coaxial connector accommodating differential expansion

Details Coaxial connector accommodating differential expansion Coaxial connector accommodating differential expansion

1994-02-28

1995-03-28

Paumen, Gary F.

Electrical connectors

Interrelated connectors relatively movable during use

Linear movement

333260, 174 88C, H01P 104

Patent

active

054011736

ABSTRACT:
The coaxial connector disclosed herein accommodates differential expansion between inner and outer conductors in a multi-section run of coaxial transmission line by utilizing a coupler assembly which connects adjacent inner conductors, one of the inner conductors being fixedly connected to the coupler with axial movement being permitted with respect to the other inner conductor. Electrical connection between the coupler and the movable conductor is established at a single axial position by an annular conductive spring member while longitudinal alignment is maintained over the rest of the length of the coupler by insulating rings set into annular grooves. A tubular shield extends from the coupler over the adjacent end of the movable inner conductor without electrical contact. The axial length of the shield is larger than the differential expansion which occurs between inner and outer conductor sections. The shield masks the gap at end of the movable inner conductor which is otherwise variable with differential expansion and thereby minimizes the changes in impedance at the connector.

REFERENCES:
patent: 2955148 (1960-10-01), Graham et al.
patent: 3373242 (1968-03-01), Sewell
patent: 3955871 (1976-05-01), Kruger
patent: 4390218 (1983-06-01), Kruger
patent: 4763090 (1988-08-01), Pitschi
patent: 5341116 (1994-08-01), Kerkhoff et al.
David Dettinger--"The Optimum Spacing Of Bead Supports In Coaxial Line At Microwave Frequencies"--Wheeler Laboratories, Inc., Great Neck, N.Y., pp. 250-253.

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