Matable coaxial connector assembly having impedance compensation

A coaxial connector assembly of the type having a plug connector and a jack connector matable therewith at a mating interface, each having an inner conductor concentrically held within dielectric bodies within an outer conductive means extending from a mating face to a rearward face for coaxial connection to other coaxial articles, each inner conductor and outer conductive means having respective precise radially spaced surfaces therebetween at each axial location therealong, the plug conductor including a pin contact section of selected diameter extending forwardly of a body section and matable with a socket contact section of the jack inner conductor at the mating interface, and the plug outer conductive means including a front shell having an inner surface defining a cavity of selected inner diameter surrounding the pin contact section, and the jack outer conductive means having a cylindrical body section of selected inner and outer diameters surrounding the socket contact section and including an array of spring arms extending forwardly of the cylindrical body section adapted to engage the plug outer conductive means at the mating interface upon mating, the mating interface characterized in that:

• said body section of said plug inner conductor extending rearwardly from said pin contact section defining a shoulder and having a selected diameter slightly larger than said selected diameter of said pin contact section rearwardly at least into a dielectric body forward end;
• said plug outer conductive means including a reduced inner diameter section inwardly of said leading edge of said front shell and having an inwardly facing surface of selected diameter extending rearwardly to said dielectric body forward end from a first axial location axially coincident with said shoulder of said plug inner conductor, said first axial location defining an outermost limit of a range of positions of engagement of said leading ends of said spring arms of said jack outer conductive means with said plug outer conductive means;
• and
• said spring arms of said jack outer conductive means extending forwardly of a reduced diameter leading end of said cylindrical body section of said jack outer conductive means;
• said mating interface including various regions of mismatched impedance axially therealong with respective lengths of said regions varying with the axial position of said plug mating face relative to said jack mating face, said regions being dimensioned to create reflection signals at transition positions between adjacent regions by varying said selected diameters of said inwardly facing surfaces of said outer conductive means of said plug and said jack and said outwardly facing surfaces of said inner conductors thereof within said mating interface, said reflection signals being substantially self canceling in summation, thereby preventing power loss.