Low PIM coaxial connector
View Patent ↗A coaxial connector is provided with a connector body coupled to a connector coupling body. A slip ring is provided within a bore of the connector coupling body. An outer conductor groove of the connector body is open to a cable end of the connector body. A contact surface is provided on an inner sidewall of the outer conductor groove. A spring contact is provided between the slip ring and the connector body and a stabilizing assembly is coupled to a cable end of the connector coupling body. The axial advance of the connector coupling body towards the connector body drives the slip ring against the coil spring to clamp a leading edge of the outer conductor inserted into the outer conductor groove against the contact surface. The stabilizing assembly grips a jacket of the coaxial cable, stabilizing the interconnection. Methods of manufacture and interconnection are also disclosed.
1. A coaxial connector for interconnection with an outer conductor of a coaxial cable, comprising:
a connector body dimensioned to couple with a connector coupling body;
a slip ring within a bore of the connector coupling body;
an annular outer conductor groove of the connector body, open to a cable end of the connector body;
a contact surface provided on an inner sidewall of the outer conductor groove;
a spring contact between the slip ring and the connector body; and
a stabilizing assembly coupled to a cable end of the connector coupling body;
whereby axial advance of the connector coupling body towards the connector body drives the slip ring against the spring contact to clamp a leading edge of the outer conductor inserted into the outer conductor groove against the contact surface.
2. The connector of claim 1 , wherein the stabilizing assembly comprises: a coupling body dimensioned to couple at a connector end of the coupling body with a cable end of the connector coupling body;
a jacket grip of rigid material retained between the coupling body and a stabilizing body coupled to a cable end of the coupling body;
an outer diameter of the jacket grip abutting an annular wedge surface of the stabilizing body;
the wedge surface provided with a taper between a maximum diameter proximate a connector end of the jacket grip and a minimum diameter proximate a cable end of the annular wedge surface; whereby the jacket grip is driven radially inward as the stabilizing body is advanced axially towards the coupling body.
3. The connector of claim 1 , wherein the coupling of the stabilizing assembly to the connector coupling body is via a snap fit interconnection with at least one annular retention burr of the coupling body.
4. The connector of claim 1 , wherein the stabilizing assembly provides a radially inward grip upon a jacket of the coaxial cable.
5. The connector of claim 1 , wherein the slip ring is provided with an oval arc section contact area abutting the spring contact.
6. The connector of claim 1 , wherein a contact area of the slip ring against the spring contact has a greater surface area than an edge contact area of the connector body against the spring contact.
7. The connector of claim 1 , wherein the outer conductor groove is provided proximate a cable end of the connector body.
8. The connector of claim 1 , wherein the outer conductor groove is provided between an outer diameter of an insulator within the bore of the connector body and an inner diameter of the bore of the connector body.
9. The connector of claim 1 , further including a removable outer diameter spacer between the connector body and the connector coupling body.
10. The connector of claim 1 , further including a removable outer diameter spacer between the coupling body and the stabilizing body.
11. The connector of claim 1 , wherein the spring contact is biased radially outward out of an axial path between the outer conductor groove and the cable end of the connector; and the spring contact is driven radially inward by the slip ring as the connector coupling nut is advanced axially towards the connector body.
12. A method for manufacturing a coaxial connector, comprising the steps of:
providing a coaxial connector with a connector coupling body at a cable end;
providing a coupling body dimensioned to couple at a connector end of the coupling body with the cable end of the connector coupling body;
providing a jacket grip of rigid material;
providing a stabilizing body dimensioned to couple to a cable end of the coupling body;
inserting the jacket grip between the coupling body and stabilizing body and coupling the coupling body to the stabilizing body;
an outer diameter of the jacket grip abutting an annular wedge surface of the stabilizing body;
the wedge surface provided with a taper between a maximum diameter proximate a connector end of the jacket grip and a minimum diameter proximate a cable end of the annular wedge surface; whereby the jacket grip is driven radially inward as the stabilizing body is advanced axially towards the coupling body; and
coupling the connector end of the coupling body to the cable end of the connector coupling body.
13. The method of claim 12 , wherein the coupling between the connector coupling body and the coupling body is via snap-fit upon at least one annular retention burr of the coupling body.
14. A method for interconnecting a coaxial connector with an outer conductor of a coaxial cable, comprising the steps of:
inserting a leading edge of the outer conductor through a stabilizing assembly, a connecter coupling body and into an outer conductor groove of a connector body;
axially advancing the connector coupling body towards the connector body until a slip ring between the connector body and the connector coupling body clamps the outer conductor between a spring contact and a contact surface of the outer conductor groove; and
axially advancing a stabilizing body towards a coupling body of the stabilizing assembly until a jacket grip between the stabilizing body and the coupling body is biased radially inward against a jacket of the coaxial cable.
15. The method of claim 14 , further including the step of, after the outer conductor is seated in the outer conductor groove, removing a spacer from between the connector body and the coupling body and a spacer from between the stabilizing body and the coupling body.
16. The method of claim 14 , wherein the spring contact is rotationally stationary with respect to the connector body as the connector coupling body is axially advanced.
17. The method of claim 14 , wherein the outer conductor is one of solid smooth sidewall and solid corrugated type outer conductor.
18. The method of claim 14 , wherein a contact area of the slip ring is provided as an oval arc section.
19. The method of claim 14 , wherein the jacket grip is a rigid material.
20. The method of claim 14 , further including a coaxial cable end preparation step wherein a portion of a dielectric material and/or adhesive is not removed from an inner diameter of the leading edge portion of the outer conductor.