Electrical connector with improved crosstalk compensation
First Claim
Patent Images
1. A communication jack comprising:
- plug interface contacts for making electrical contact with plug contacts in a plug, the plug interface contacts and plug contacts introducing crosstalk having an associated first frequency dependency based on a frequency of a communication signal being communicated;
a plurality of crosstalk compensation zones, wherein at least one of the crosstalk compensation zones comprises a coupling having an associated second frequency dependency that substantially differs from the first frequency dependency.
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Abstract
An electrical connector with improved crosstalk compensation is disclosed. By including at least one coupling with a different frequency dependency than other couplings in the connector, crosstalk compensation performance is improved over a greater frequency range. The different frequency dependency may, for example, be used to compensate for phase shifts caused by distances between compensation circuitry and the plug/jack interface. Embodiments for decreasing these distances are also disclosed.
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Citations
48 Claims
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1. A communication jack comprising:
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plug interface contacts for making electrical contact with plug contacts in a plug, the plug interface contacts and plug contacts introducing crosstalk having an associated first frequency dependency based on a frequency of a communication signal being communicated;
a plurality of crosstalk compensation zones, wherein at least one of the crosstalk compensation zones comprises a coupling having an associated second frequency dependency that substantially differs from the first frequency dependency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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8. The communication jack of 6, wherein the first frequency dependency is a magnitude change of approximately 20 dB per decade, and wherein the second frequency dependency is a magnitude that changes from approximately 0 dB per decade at a first frequency to approximately 20 dB per decade at a second frequency.
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28. An electrical connector comprising:
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a plug having plug contacts;
a jack having plug interface contacts;
a first crosstalk compensation zone connected to at least two of the plug interface contacts; and
a second crosstalk compensation zone connected to the at least two plug interface contacts, wherein the second crosstalk compensation zone comprises a mutual-inductive coupling between two signal traces in the second crosstalk compensation zone. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. An electrical connector comprising:
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a plug having plug contacts;
a jack having plug interface contacts;
a first crosstalk compensation zone connected to at least two of the plug interface contacts; and
a second crosstalk compensation zone connected to the at least two plug interface contacts, wherein the second crosstalk compensation zone comprises a self-inductive coupling between two signal traces in the second crosstalk compensation zone. - View Dependent Claims (42, 43, 44, 45, 46)
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47. An electrical connector comprising:
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a plug having plug contacts;
a jack having plug interface contacts;
a first crosstalk compensation zone connected to at least two of the plug interface contacts; and
a second crosstalk compensation zone connected to the at least two plug interface contacts, wherein the second crosstalk compensation zone comprises a a purely resistive coupling between two signal traces in the second crosstalk compensation zone, whereby impedance of the resistive coupling increases at high frequencies as a result of a skin-effect associated with the resistive coupling.
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48. A communication jack for communicating a signal, comprising:
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a first crosstalk compensation zone for offsetting crosstalk;
a second crosstalk compensation zone to provide additional compensation to offset a phase-shift effect; and
a third crosstalk compensation zone to provide crosstalk compensation that adjusts with frequency of the signal.
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Specification