GROUND SLEEVE HAVING IMPROVED IMPEDANCE CONTROL AND HIGH FREQUENCY PERFORMANCE

• US 20100294530A1
• Filed: 05/04/2010
• Published: 11/25/2010
• Est. Priority Date: 09/29/2008
• Status: Active Grant

• Current Assignee: Amphenol Corporation
• Original Assignee: Amphenol Corporation
• Inventors: George, Joseph J., Milbrand, Donald, ATKINSON, Prescott
• Granted Patent: US 9,124,009 B2
• Time in Patent Office: Days
• US Class Current: 174/78
• CPC Class Codes: H01R 13/6464 by adding capacitive elements
• CPC Class Codes: H01R 13/65914 Connection of shield to additional grounding conductors

Abstract

A conductive sleeve includes a central portion with a front, a rear, and sides; at least one flange mated with at the sides of the central portion; and capacitive section that extends from a portion of the central portion at the rear of the central portion. The central portion is adapted to be placed over an end of a cable and extend over at least one conductor of the cable. The at least one flange is adapted to connect with a mating conductor. The capacitive section has a width smaller than a width of the central portion and is adapted to be placed immediately adjacent to an insulator of the cable and another conductor of the cable to form substantially a capacitive shorting circuit.

Claims

1. A conductive sleeve, the conductive sleeve comprising:

a central portion adapted to be disposed over an end of a cable and extend over at least one conductor of the cable, the central portion has a front, a rear, and sides;

at least one flange coupled at the sides of the central portion and adapted to couple with a mating conductor; and

a capacitive section that extends from a portion of the central portion at the rear of the central portion, the capacitive section has a width that is smaller than a width of the central portion and is adapted to be disposed on top of an insulator of the cable and another conductor of the cable to form substantially a capacitive shorting circuit.

2. A conductive sleeve according to claim 1, further comprising a lossy material disposed on the capacitive section between the capacitive section and the insulator of the cable.

3. A conductive sleeve according to claim 2, wherein the lossy material is made from a ferrite absorber.

4. A conductive sleeve according to claim 2, wherein the lossy material is made from an electrically lossy composite.

5. A conductive sleeve according to claim 4, wherein the electrically lossy composite further comprises carbon particle-based film.

6. A conductive sleeve according to claim 2, wherein the lossy material is made from Eccosorb CRS-124.

7. A conductive sleeve according to claim 1, wherein the conductive sleeve is made from copper.

8. A conductive sleeve, the conductive sleeve comprising:

a central portion adapted to be disposed over an end of a cable and extend over at least one conductor of the cable, the central portion has a front, a rear, and sides;

at least one flange coupled at the sides of the central portion and adapted to couple with a mating conductor;

a capacitive section that extends from a portion of the central portion at the rear of the central portion, the capacitive section has a width that is smaller than a width of the central portion and is adapted to be disposed on top of an insulator of the cable and another conductor of the cable to form substantially a capacitive shorting circuit; and

a lossy material disposed on the capacitive section and adapted to be disposed immediately adjacent to the insulator of the cable.

9. A conductive sleeve according to claim 8, wherein the lossy material is made from a ferrite absorber.

10. A conductive sleeve according to claim 8, wherein the lossy material is made from an electrically lossy composite.

11. A conductive sleeve according to claim 10, wherein the electrically lossy composite further comprises carbon particle-based film.

12. A conductive sleeve according to claim 8, wherein the lossy material is made from Eccosorb CRS-124.

13. A conductive sleeve according to claim 8, wherein the conductive sleeve is made from copper.

14. A cable assembly, the cable assembly comprising:

a cable, the cable including,

at least one conductor,

an insulator substantially surrounding the at least one conductor,

another conductor substantially surrounding the insulator, and

an outer insulator substantially surrounding the other conductor; and

a conductive sleeve disposed on cable, the conductive sleeve including,

a central portion adapted to be disposed over an end of a cable and extend over the at least one conductor of the cable, the central portion has a front, a rear, and sides,

at least one flange coupled at the sides of the central portion and adapted to couple with a mating conductor that mates with the cable, and

a capacitive section that extends from a portion of the central portion at the rear of the central portion, the capacitive section has a width that is smaller than a width of the central portion and is adapted to be disposed immediately adjacent to the outer insulator of the cable and the other conductor of the cable to form substantially a capacitive shorting circuit.

15. A cable assembly according to claim 14, further comprising a drain wire disposed adjacent to the insulator.

16. A cable assembly according to claim 14, wherein the conductive sleeve further comprising a lossy material disposed on the capacitive section and between the capacitive section and the insulator of the cable.

17. A cable assembly according to claim 16, wherein the lossy material is made from a ferrite absorber.

18. A cable assembly according to claim 16, wherein the lossy material is made from an electrically lossy composite.

19. A cable assembly according to claim 16, wherein the lossy material is made from Eccosorb CRS-124.

20. A cable assembly according to claim 14, wherein the conductive sleeve is made from copper.