Electrical connector having an electrically parallel compensation region

• US 8,016,621 B2
• Filed: 08/25/2009
• Issued: 09/13/2011
• Est. Priority Date: 08/25/2009
• Status: Expired due to Fees

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: Tyco Electronics Corporation (TE Connectivity Ltd. (United Kingdom))
• Inventors: Pepe, Paul John, Bopp, Steven Richard
• Primary Examiner(s): NASRI, JAVAID H
• Application Number:
  US12/547,245
• Publication Number:
  US 20110053431A1
• Time in Patent Office: 749 Days
• Field of Search: 439/676, 439/404, 439/76.1, 439/941, 439/620.23, 439/620.11, 439/620.22
• US Class Current: 439/676
• CPC Class Codes: H01R 13/6464 by adding capacitive elements
• CPC Class Codes: H01R 13/6466 on substrates, e.g. printed circuit boards [PCB]
• CPC Class Codes: H01R 13/6467 by cross-over of signal conductors
• CPC Class Codes: H01R 13/6477 by variation of dielectric properties
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 24/00 Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure contact members H01R13/02; securing contact members in or to a base or case or insulating of contact members H01R13/40; bases or cases H01R13/46; means for supporting coupling part when not engaged H01R13/60; means for facilitating engagement or disengagement of coupling parts or for holding them in engagement H01R13/62; means for preventing, inhibiting or avoiding incorrect coupling H01R13/64
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45
• CPC Class Codes: Y10S 439/941 Crosstalk suppression

Abstract

An electrical connector including a connector body that has mating and loading ends and is configured to receive a modular plug at the mating end. The electrical connector also includes a contact sub-assembly that is held by the connector body. The contact sub-assembly includes an array of mating conductors that are configured to engage plug contacts of the modular plug at mating interfaces proximate to the mating end. The mating conductors transmit a signal current along an interconnection path between the mating and loading ends. The contact sub-assembly also includes a plurality of open-ended conductors electrically connected to corresponding mating conductors. The open-ended conductors are electrically parallel to the interconnection path of the array of mating conductors and generate crosstalk compensation as the signal current is transmitted through the mating conductors.

Claims

1. An electrical connector comprising:

a connector body having mating and loading ends and being configured to receive a modular plug at the mating end; and

a contact sub-assembly held by the connector body, the contact sub-assembly comprising an array of mating conductors configured to engage plug contacts of the modular plug at mating interfaces proximate to the mating end, the mating conductors transmitting a signal current along an interconnection path between the mating and loading ends, the contact sub-assembly further comprising a plurality of open-ended conductors electrically connected to corresponding mating conductors, the open-ended conductors being electrically parallel to the interconnection path of the array of mating conductors and generating crosstalk compensation as the signal current is transmitted through the mating conductors;

wherein the open-ended conductors include first and second open-ended conductors, the first open-ended conductor being electrically connected to a mating conductor proximate to the mating end and the second open-ended conductor being electrically connected to a mating conductor proximate to the loading end, the first and second open-ended conductors being capacitively coupled to each other.

2. The connector in accordance with claim 1 wherein the connector body has an interior chamber configured to receive the modular plug and the connector further comprises a circuit board, the open-ended conductors forming a first compensation region to generate crosstalk compensation in the circuit board and the array of mating conductors forming a second compensation region to generate crosstalk compensation in the interior chamber, the first and second compensation regions being electrically parallel with respect to each other.

3. The connector in accordance with claim 1 wherein the capacitively coupled open-ended conductors include at least one of (a) inter-digital fingers and (b) open-ended traces capacitively coupled through non-ohmic plates.

4. The connector in accordance with claim 1 wherein the first and second open-ended conductors are electrically connected to different corresponding mating conductors.

5. The connector in accordance with claim 1 wherein the first and second open-ended conductors are electrically connected to a common mating conductor.

6. The connector in accordance with claim 1 wherein the open-ended conductors form a first compensation region to generate crosstalk compensation and the array of mating conductors form a second compensation region to generate crosstalk compensation, the first and second compensation regions being electrically parallel with respect to each other.

7. The connector in accordance with claim 1 wherein the contact sub-assembly further comprises a printed circuit including the open-ended conductors.

8. The connector in accordance with claim 1 wherein the array of mating conductors comprises first and second differential pairs of mating conductors, the first differential pair splitting the second differential pair of mating conductors, wherein each mating conductor of the second differential pair is electrically coupled to at least one open-ended conductor proximate to the mating end.

9. The connector in accordance with claim 8 wherein each mating conductor of the second differential pair is electrically coupled to separate open-ended conductors proximate to the mating end.

10. The connector in accordance with claim 8 wherein each mating conductor of the second differential pair is capacitively coupled through the second compensation region to a mating conductor having the same polarity.

11. An electrical connector comprising:

a connector body having an interior chamber configured to receive a modular plug when the modular plug is inserted therein in a mating direction;

a contact sub-assembly held by the connector body, the contact sub-assembly comprising an array of mating conductors configured to engage plug contacts of the modular plug at mating interfaces in the chamber, each mating conductor extending in the chamber along the mating direction between an engagement portion and an interior portion and configured to have a signal current flow therebetween; and

a circuit board held by the connector body and having a plurality of open-ended conductors electrically connected to corresponding mating conductors, wherein at least two of the open-ended conductors capacitively couple the engagement portion of a first mating conductor to the interior portion of a second mating conductor.

12. The connector in accordance with claim 11 wherein the array of mating conductors and the open-ended conductors form first and second crosstalk stages.

13. The connector in accordance with claim 12 wherein the mating conductors are arranged differently with respect to one another in the first and second stages.

14. The connector in accordance with claim 11 wherein the circuit board comprises contact pads configured to be electrically connected to corresponding mating conductors, the contact pads also being electrically connected to corresponding open-ended conductors.

15. The connector in accordance with claim 11 wherein the capacitively coupled open-ended conductors include inter-digital fingers.

16. The connector in accordance with claim 11 wherein the capacitively coupled open-ended conductors include open-ended traces capacitively coupled to one another through non-ohmic plates.

17. The connector in accordance with claim 11 wherein the array of mating conductors comprises first and second differential pairs of mating conductors, the first differential pair splitting the second differential pair of mating conductors, wherein each mating conductor of the second differential pair is electrically coupled to at least one open-ended conductor.

18. The connector in accordance with claim 17 wherein each mating conductor of the second differential pair is electrically coupled to two open-ended conductors.

19. The connector in accordance with claim 17 wherein each mating conductor of the second differential pair is capacitively coupled through the circuit board to a mating conductor having the same polarity.

20. The connector in accordance with claim 11 wherein the open-ended conductors form a first compensation region to generate crosstalk compensation and the array of mating conductors form a second compensation region to generate crosstalk compensation, the first and second compensation regions being electrically parallel with respect to each other.

21. The connector in accordance with claim 11 wherein the circuit board has opposite first and second end portions that are spaced apart from each other on the circuit board, the at least two of the open-ended conductors including first and second open-ended conductors, the first open-ended conductor being electrically connected to the first mating conductor proximate to the first end portion and the second open-ended conductor being electrically connected to the second mating conductor proximate to the second end portion.

22. An electrical connector comprising:

a connector body having an interior chamber configured to receive a modular plug when the modular plug is inserted therein in a mating direction;

a contact sub-assembly held by the connector body, the contact sub-assembly comprising an array of mating conductors configured to engage plug contacts of the modular plug at mating interfaces in the chamber, each mating conductor extending in the chamber along the mating direction between an engagement portion and an interior portion and configured to have a signal current flow therebetween; and

a circuit board held by the connector body and having a plurality of open-ended conductors electrically connected to corresponding mating conductors, wherein at least two of the open-ended conductors capacitively couple the engagement portion and the interior portion of a common mating conductor.