Coaxial cable connector with integral RFI protection

• US 9,287,659 B2
• Filed: 10/16/2012
• Issued: 03/15/2016
• Est. Priority Date: 10/16/2012
• Status: Active Grant

• Current Assignee: PPC Broadband Incorporated (Belden Inc.)
• Original Assignee: Corning Optical Communications RF, LLC (Corning Incorporated)
• Inventors: Lutz, William Bernard, Burris, Donald Andrew
• Primary Examiner(s): Duverne, Jean F
• Application Number:
  US13/653,095
• Publication Number:
  US 20140106613A1
• Time in Patent Office: 1,246 Days
• Field of Search: 439/578, 439580-585, 439/63, 439/322
• US Class Current: 1/1
• CPC Class Codes: H01R 13/622 Screw-ring or screw-casing H01R13/623 takes precedence
• CPC Class Codes: H01R 13/6581 Shield structure
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/40 specially adapted for high frequency
• CPC Class Codes: H01R 4/48 utilising a spring, clip, or other resilient member H01R4/52 takes precedence
• CPC Class Codes: H01R 9/0524 Connection to outer conductor by action of a clamping member, e.g. screw fastening means H01R9/0515 takes precedence

Abstract

A coaxial cable connector for coupling an end of a coaxial cable to a terminal is disclosed. The connector has a coupler adapted to couple the connector to a terminal, a body assembled with the coupler and a post assembled with the coupler and the body. The post is adapted to receive an end of a coaxial cable. The post has an integral contacting portion that is monolithic with at least a portion of the post. When assembled the coupler and post provide at least one circuitous path resulting in RF shielding such that RF signals external to the coaxial cable connector are attenuated, such that the integrity of an electrical signal transmitted through coaxial cable connector is maintained regardless of the tightness of the coupling of the connector to the terminal.

Claims

1. A coaxial cable connector for coupling an end of a coaxial cable to a terminal, the coaxial cable comprising an inner conductor, a dielectric surrounding the inner conductor, an outer conductor surrounding the dielectric, and a jacket surrounding the outer conductor, the connector comprising:

a coupler configured to couple the connector to the terminal;

a body assembled with the coupler, and

a post assembled with the coupler and the body, wherein the post is configured to receive an end of a coaxial cable,

wherein the coupler and post define a plurality of pairs of electromagnetically coupled faces, wherein a first pair of electromagnetically coupled faces is substantially orthogonal to an adjacent pair of electromagnetically coupled faces.

2. The coaxial cable connector of claim 1, wherein RF signals external to the coaxial cable connector are attenuated by at least about 50 dB in a range up to about 1000 MHz.

3. The coaxial cable connector of claim 1, wherein a transfer impedance measured from the outer conductor of the coaxial cable to the terminal through the connector averages less than about 0.24 ohms.

4. The coaxial cable connector of claim 1, wherein the RF signals external to the connector comprise RF signals that ingress into the connector.

5. The coaxial cable connector of claim 1, wherein the RF signals external to the connector comprise RF signals that egress out from the connector.

6. The coaxial cable connector of claim 1, wherein the coupler comprises,

a step, and

a lip,

and wherein the post comprises,

a flange,

a contacting portion

and a shoulder.

7. The coaxial cable connector of claim 6, wherein a first circuitous path including the plurality of pairs of electromagnetically coupled faces is established by at least one of the step, the lip, the flange, the contacting portion and the shoulder, and wherein the first circuitous path attenuates of RF signals external to the connector.

8. The coaxial cable connector of claim 6, wherein the contacting portion is integral and monolithic with at least a portion of the post.

9. The coaxial cable connector of claim 1, wherein the terminal comprises an equipment connection port, and wherein the coupler comprises a threaded portion configured to connect with a threaded portion of the equipment connection port, and wherein at least one thread on the coupler has a pitch angle different than a pitch angle of at least one thread of the equipment connection port.

10. The coaxial cable connector of claim 9, wherein the pitch angle of the thread of the coupler is about 2 degrees different than the pitch angle of the thread of the equipment connection port.

11. The coaxial cable connector of claim 9, wherein the pitch angle of the thread of the coupler is about 62 degrees, and the pitch angle of the thread of the equipment connection port is about 60 degrees.

12. The coaxial cable connector of claim 9, wherein the threaded portion of the coupler and the threaded portion of the equipment connection port, establish a second circuitous path, and wherein the second circuitous path attenuates RF signals external to the connector.

13. A coaxial cable connector for coupling an end of a coaxial cable to an equipment connection port, the coaxial cable comprising an inner conductor, a dielectric surrounding the inner conductor, an outer conductor surrounding the dielectric, and a jacket surrounding the outer conductor, the connector comprising:

a coupler configured to couple the connector to the equipment connection port;

a body assembled with the coupler, and

a post assembled with the coupler and the body, wherein the post is configured to receive an end of a coaxial cable, and wherein the post comprises an integral contacting portion, and wherein the contacting portion is monolithic with at least a portion of the post, and

wherein when assembled the coupler and post provide at least one circuitous path defined a plurality of pairs of electromagnetically coupled faces of the coupler and post, wherein a first pair of electromagnetically coupled faces is substantially orthogonal to an adjacent pair of electromagnetically coupled faces.

14. The coaxial cable connector of claim 13, wherein RF signals external to the coaxial connector comprise at least one of RF signals that ingress into the connector and RF signals that egress out from the connector.

15. The coaxial cable connector of claim 13, wherein RF signals are attenuated by at least about 50 dB in a range up to about 1000 MHz.

16. The coaxial cable connector of claim 13, wherein a transfer impedance averages about 0.24 ohms.

17. The coaxial cable connector of claim 13, wherein the at least one circuitous path comprises a first circuitous path and a second circuitous path.

18. The coaxial cable connector of claim 17, wherein the coupler comprises a lip and a step, and the post comprises a flange and a shoulder, and wherein the first circuitous path is established by at least one of the step, the lip, the flange, the contacting portion and the shoulder.

19. The coaxial cable connector of claim 17, wherein the terminal comprises an equipment connection port, and wherein the coupler comprises a threaded portion configured to connect with a threaded portion of the equipment connection port, and wherein the threaded portion of the coupler and the threaded portion of the equipment connection port establish a second circuitous path.

20. The coaxial cable connector of claim 19, wherein at least one thread on the coupler has a pitch angle different than a pitch angle of at least one thread of the equipment connection port.

21. A coaxial cable connector for coupling an end of a coaxial cable to an equipment connection port, the coaxial cable comprising an inner conductor, a dielectric surrounding the inner conductor, an outer conductor surrounding the dielectric, and a jacket surrounding the outer conductor, the connector comprising:

a coupler configured to couple the connector to the equipment connection port, wherein the coupler has a step, and wherein the coupler comprises a threaded portion configured to connect with a threaded portion of the equipment connection port, and wherein at least one thread on the coupler has a pitch angle different than a pitch angle of at least one thread of the equipment connection port;

a body assembled with the coupler;

a post assembled with the coupler and the body, wherein the post comprises a flange, a contacting portion and a shoulder, and wherein the post is configured to receive an end of a coaxial cable, and wherein the contacting portion is integral and monolithic with at least a portion of the post, and

wherein a first circuitous path is established by the a step, the flange, the contacting portion and the shoulder, and wherein a second circuitous path is established by the threaded portion of the coupler and the threaded portion of the equipment connection port, and wherein the first circuitous path and the second circuitous path provide for RF shielding of the assembled coaxial cable connector such that RF signals external to the coaxial cable connector are attenuated by at least about 50 dB in a range up to about 1000 MHz, and wherein a transfer impedance averages about 0.24 ohms, and wherein the integrity of an electrical signal transmitted through coaxial cable connector is maintained regardless of the tightness of the coupling of the connector to the equipment connection port and without a separate continuity member.

22. The coaxial cable connector of claim 21, wherein the pitch angle of the thread of the coupler is about 2 degrees different than the pitch angle of the thread of the equipment connection port.

23. The coaxial cable connector of claim 22, wherein the pitch angle of the thread of the coupler is about 62 degrees, and the pitch angle of the thread of the equipment connection port is about 60 degrees.