Connecting hardware with multi-stage inductive and capacitive crosstalk compensation

• US 8,167,656 B2
• Filed: 12/21/2010
• Issued: 05/01/2012
• Est. Priority Date: 10/13/2006
• Status: Expired due to Fees

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC GmbH (TE Connectivity Limited)
• Inventors: Reeves, Stuart James, Murray, David Patrick, George, Ian Robert, Hammond, Bernard Harold Jr.
• Primary Examiner(s): Paumen, Gary F.
• Application Number:
  US12/975,009
• Publication Number:
  US 20120003874A1
• Time in Patent Office: 497 Days
• Field of Search: 43962011-62023, 439/676, 439/941
• US Class Current: 439/620.11
• CPC Class Codes: H01R 13/6464 by adding capacitive elements
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 13/719 specially adapted for high frequency, e.g. with filters
• CPC Class Codes: Y10S 439/941 Crosstalk suppression

Abstract

A connector and method of crosstalk compensation within a connector is disclosed. The method includes determining an uncompensated crosstalk, including an uncompensated capacitive crosstalk and an uncompensated inductive crosstalk, of a wired pair in a connector. The uncompensated crosstalk includes common mode and differential mode crosstalk. The method includes applying at least one inductive element to the wired pair, where the at least one inductive element is configured and arranged to provide balanced compensation for the inductive crosstalk caused by the one or more pairs. The method further includes applying at least one capacitive element to the wired pair, where the at least one capacitive element is configured and arranged to provide balanced compensation for the capacitive crosstalk caused by the one or more wired pairs.

Claims

1. A method of compensating for crosstalk occurring within a telecommunications jack, the method comprising:

applying a plurality of inductive elements across a plurality of wire pairs, the plurality of inductive elements forming first and second zones of inductive crosstalk compensation, the first and second zones of inductive crosstalk compensation cooperating with inductive crosstalk generated at contact springs of the jack to provide forward and reverse symmetry; and

applying a plurality of capacitive elements across the plurality of wire pairs, the plurality of inductive elements forming first and second zones of capacitive crosstalk compensation, the first and second zones of capacitive crosstalk compensation cooperating with capacitive crosstalk generated at contact springs of the jack to provide forward and reverse symmetry.

2. The method of claim 1, wherein the plurality of inductive elements provides a balanced compensation arrangement across the plurality of wire pairs.

3. The method of claim 1, wherein the plurality of wire pairs includes a 3-6 wire pair and a 4-5 wire pair within a telecommunications jack.

4. The method of claim 1, further comprising determining an uncompensated crosstalk at the plurality of wire pairs, the uncompensated crosstalk including an uncompensated inductive crosstalk component and an uncompensated capacitive crosstalk component.

5. The method of claim 4, wherein determining an uncompensated crosstalk at the plurality of wire pairs includes determining an uncompensated differential mode crosstalk and an uncompensated common mode crosstalk.

6. The method of claim 1, wherein the first zone of inductive crosstalk is disposed at a first distance from the contact springs of the jack, and wherein the first distance is approximately equal to a distance between the first zone of inductive crosstalk and the second zone of inductive crosstalk.

7. The method of claim 6, wherein the first zone of capacitive crosstalk is disposed at a second distance from the contact springs of the jack, and wherein the second distance is approximately equal to a distance between the first zone of capacitive crosstalk and the second zone of capacitive crosstalk.

8. The method of claim 7, wherein the first distance and the second distance are unequal.

9. The method of claim 1, wherein the plurality of inductive elements further forms a third zone of inductive crosstalk compensation cooperating with the first and second zones of inductive crosstalk compensation and inductive crosstalk generated at contact springs of the jack to provide forward and reverse symmetry.

10. The method of claim 1, wherein the plurality of capacitive elements further forms a third zone of capacitive crosstalk compensation cooperating with the first and second zones of capacitive crosstalk compensation and capacitive crosstalk generated at contact springs of the jack to provide forward and reverse symmetry.

11. The method of claim 1, wherein a total magnitude of inductive crosstalk at the first zone of inductive crosstalk compensation is at least about twice the inductive crosstalk generated at the jack.

12. The method of claim 11, wherein a total magnitude of capacitive crosstalk at the first zone of capacitive crosstalk compensation is at least about twice the capacitive crosstalk generated at the jack.

13. A telecommunications jack comprising:

a plurality of contact springs associated with a plurality of wire pairs;

a plurality of inductive elements disposed across the plurality of wire pairs, the plurality of inductive elements forming first and second zones of inductive crosstalk compensation, the first and second zones of inductive crosstalk compensation cooperating with inductive crosstalk generated at the contact springs to provide forward and reverse symmetry; and

a plurality of capacitive elements disposed across the plurality of wire pairs, the plurality of inductive elements forming first and second zones of capacitive crosstalk compensation, the first and second zones of capacitive crosstalk compensation cooperating with capacitive crosstalk generated at the contact springs to provide forward and reverse symmetry.

14. The telecommunications jack of claim 13, wherein the plurality of inductive elements include wire crossover locations.

15. The telecommunications jack of claim 13, wherein a total magnitude of inductive crosstalk at the first zone of inductive crosstalk compensation is at least about twice the inductive crosstalk generated at the jack.

16. The telecommunications jack of claim 15, wherein a total magnitude of capacitive crosstalk at the first zone of capacitive crosstalk compensation is at least about twice the capacitive crosstalk generated at the jack.

17. The telecommunications jack of claim 13, wherein the plurality of wire pairs includes a 3-6 wire pair and a 4-5 wire pair within a telecommunications jack.

18. The telecommunications jack of claim 13, wherein the first zone of inductive crosstalk is disposed at a first distance from the contact springs of the jack, and wherein the first distance is approximately equal to a distance between the first zone of inductive crosstalk and the second zone of inductive crosstalk.

19. The telecommunications jack of claim 18, wherein the first zone of capacitive crosstalk is disposed at a second distance from the contact springs of the jack, and wherein the second distance is approximately equal to a distance between the first zone of capacitive crosstalk and the second zone of capacitive crosstalk.

20. The telecommunications jack of claim 19, wherein the first distance and the second distance are unequal.

21. A telecommunications jack comprising:

a plurality of contact springs associated with a plurality of wire pairs;

a plurality of inductive elements disposed across the plurality of wire pairs, the plurality of inductive elements forming first and second zones of inductive crosstalk compensation, the first and second zones of inductive crosstalk compensation cooperating with inductive crosstalk generated at the contact springs to provide forward and reverse symmetry, wherein a total magnitude of inductive crosstalk at the first zone of inductive crosstalk compensation is at least about twice the inductive crosstalk generated at the jack, and wherein the plurality of inductive elements provides a balanced inductive compensation arrangement across the plurality of wire pairs; and

a plurality of capacitive elements disposed across the plurality of wire pairs, the plurality of inductive elements forming first and second zones of capacitive crosstalk compensation, the first and second zones of capacitive crosstalk compensation cooperating with capacitive crosstalk generated at the contact springs to provide forward and reverse symmetry, wherein a total magnitude of capacitive crosstalk at the first zone of capacitive crosstalk compensation is at least about twice the capacitive crosstalk generated at the jack, and wherein the plurality of capacitive elements provides a balanced capacitive compensation arrangement across the plurality of wire pairs.