Connecting hardware with multi-stage inductive and capacitive crosstalk compensation

• US 8,517,767 B2
• Filed: 05/01/2012
• Issued: 08/27/2013
• Est. Priority Date: 10/13/2006
• Status: Active Grant

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC GmbH (TE Connectivity Ltd. (United Kingdom))
• Inventors: Reeves, Stuart James, Murray, David Patrick, George, Ian Robert, Hammond, Bernard Harold Jr.
• Primary Examiner(s): Paumen, Gary F.
• Application Number:
  US13/461,353
• Publication Number:
  US 20130005186A1
• Time in Patent Office: 483 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 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 at least first and second zones of inductive crosstalk compensation, the at least 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 capacitive elements forming at least first and second zones of capacitive crosstalk compensation, the at least first and second zones of capacitive crosstalk compensation cooperating with capacitive crosstalk generated at the contact springs to provide forward and reverse symmetry.

2. The telecommunications jack of claim 1, wherein the at least first and second zones of inductive crosstalk compensation are approximately evenly spaced.

3. The telecommunications jack of claim 1, wherein the at least first and second zones of capacitive crosstalk compensation are approximately evenly spaced.

4. The telecommunications jack of claim 1, wherein the plurality of inductive elements include wire crossover locations.

5. The telecommunications jack of claim 1, wherein the first zone of capacitive crosstalk compensation is located at a first distance from the contact springs of the jack and the first zone of inductive crosstalk compensation is located at a second distance from the contact springs of the jack.

6. The telecommunications jack of claim 5, wherein the first distance and the second distance are unequal.

7. The telecommunications jack of claim 1, wherein the plurality of inductive elements also form a third zone of inductive crosstalk compensation, wherein the first, second, and third zones of inductive crosstalk compensation cooperate with inductive crosstalk generated at the contact springs to provide forward and reverse symmetry.

8. The telecommunications jack of claim 1, wherein the plurality of capacitive elements also form a third zone of capacitive crosstalk compensation, wherein the first, second, and third zones of capacitive crosstalk compensation cooperate with capacitive crosstalk generated at the contact springs to provide forward and reverse symmetry.

9. The telecommunications jack of claim 1, wherein the capacitive crosstalk generated at the contact springs includes alien crosstalk.

10. The telecommunications jack of claim 1, wherein the plurality of inductive elements and the plurality of capacitive elements are selected and positioned to compensate for crosstalk across a range of frequencies.

11. A method of compensating for crosstalk occurring within a telecommunications jack of a twisted pair system, the method comprising:

determining an uncompensated crosstalk of a wired pair selected from among a plurality of wired pairs, the uncompensated crosstalk including an uncompensated inductive crosstalk component and an uncompensated capacitive crosstalk component;

applying a plurality of inductive elements to the wired pair, the plurality of inductive elements configured and arranged to provide a plurality of zones of inductive crosstalk compensation; and

applying a plurality of capacitive elements to the wired pair, the plurality of capacitive elements configured and arranged to provide a plurality of zones of capacitive crosstalk compensation in a balanced arrangement including the uncompensated capacitive crosstalk component.

12. The method of claim 11, wherein applying the plurality of capacitive elements to the wired pair is performed after applying the plurality of inductive elements.

13. The method of claim 11, wherein applying the plurality of inductive elements to the wired pair includes applying the plurality of inductive elements between a wire of the wired pair and a wire of a different wired pair selected from among the plurality of wired pairs.

14. The method of claim 11, wherein applying the plurality of capacitive elements to the wired pair includes applying the plurality of capacitive elements between a wire of the wired pair and a wire of a different wired pair selected from among the plurality of wired pairs.

15. The method of claim 11, wherein determining the uncompensated crosstalk includes determining alien crosstalk.

16. The method of claim 15, wherein determining an alien crosstalk includes determining a near end alien crosstalk and determining a far end alien crosstalk.

17. The method of claim 11, wherein determining an uncompensated crosstalk includes determining an uncompensated differential mode crosstalk and an uncompensated common mode crosstalk.

18. The method of claim 11, wherein applying the plurality of inductive elements to the wired pair provides a balanced arrangement including the uncompensated inductive crosstalk component.