Patent ID: 6396367
Filing Date: 2002-05-28
Classification: H01R

Abstract:
A coaxial connector comprising an outer conductor having an inner diameter D, an inner conductor coaxial with said outer conductor and having an outer diameter d, the diameters being such that, according to the wave equation, the connector has a predetermined characteristic impedance Z0=60&epsi;r&it;ln&af;[Dd]where &egr;r is the dielectric constant of an insulator between the conductors, the connector having a first side adapted to be connected to a coaxial cable and a second side to be adapted to be connected to a corresponding coaxial connector, an insulating structure having a dielectric constant &egr; mounted in proximity a the second end and remote from the first end, the structure having a substantial length along the longitudinal axis of the inner conductor, the structure including a first portion that is fixedly mounted relative to the outer conductor, the structure including an opening through which the inner conductor passes, the portion of the inner conductor passing through the opening having a smaller diameter than d to compensate for the dielectric properties of the insulating structure in such manner that the connector has the predetermined characteristic impedance Z0 where the insulating structure is located, the diameter of the inner conductor corresponding to the reduced diameter of the opening of the insulating structure, the structure having differing radii between the inner and outer conductors along its length, the structure radii being in accordance with a function of the structure dielectric constant &egr; in such manner that the connector has the predetermined characteristic impedance Z0, the insulating structure including a second portion that is closer to the second end than the first portion, the insulating structure second portion extending toward the second end so an end face of the second portion is at a connecting interface with the corresponding coaxial connector.