Printed wiring boards and communication connectors having series inductor-capacitor crosstalk compensation circuits that share a common inductor
First Claim
1. A communications connector, comprising:
- a plurality of conductive paths, each of which connects a respective one of a plurality of input terminals to a respective one of a plurality of output terminals, wherein each of the conductive paths is paired with another of the conductive paths, and each of the pairs are configured to transmit a differential signal through the connector;
a first capacitor and a first inductor coupled in series between a first conductive path of a first of the differential pairs and a first conductive path of a second of the differential pairs to provide a first series inductor-capacitor circuit between the first conductive path of the first of the differential pairs and the first conductive path of the second of the differential pairs; and
a second capacitor coupled between a first conductive path of a third of the differential pairs and a first node that is located between the first capacitor and the first inductor to provide a second series inductor-capacitor circuit between the first conductive path of the third of the differential pairs and the first conductive path of the second of the differential pairs.
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0 Petitions
Accused Products
Abstract
Printed wiring boards for communications connectors are provided that include a mounting substrate having at least first through third input terminals and first through third output terminals. A first conductive path connects the first input terminal to the first output terminal, a second conductive path connects the second input terminal to the second output terminal and a third conductive path connects the third input terminal to the third output terminal. A first inductor and a first capacitor are coupled between the first conductive path and the second conductive path, where the first inductor and the first capacitor are arranged in series to provide a first series inductor-capacitor circuit. A second capacitor is coupled between the third conductive path and the second conductive path through the first inductor to provide a second series inductor-capacitor circuit that shares the inductor of the first series inductor-capacitor circuit. Communications connectors that include such wiring boards or equivalent structures are also provided.
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Citations
20 Claims
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1. A communications connector, comprising:
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a plurality of conductive paths, each of which connects a respective one of a plurality of input terminals to a respective one of a plurality of output terminals, wherein each of the conductive paths is paired with another of the conductive paths, and each of the pairs are configured to transmit a differential signal through the connector; a first capacitor and a first inductor coupled in series between a first conductive path of a first of the differential pairs and a first conductive path of a second of the differential pairs to provide a first series inductor-capacitor circuit between the first conductive path of the first of the differential pairs and the first conductive path of the second of the differential pairs; and a second capacitor coupled between a first conductive path of a third of the differential pairs and a first node that is located between the first capacitor and the first inductor to provide a second series inductor-capacitor circuit between the first conductive path of the third of the differential pairs and the first conductive path of the second of the differential pairs. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A communications connector, comprising:
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a first input terminal, a first output terminal, and a first conductive path extending from the first input terminal to the first output terminal; a second input terminal, a second output terminal, and a second conductive path extending from the second input terminal to the second output terminal; a third input terminal, a third output terminal, and a third conductive path extending from the third input terminal to the third output terminal; a fourth input terminal, a fourth output terminal, and a fourth conductive path extending from the fourth input terminal to the fourth output terminal; a fifth input terminal, a fifth output terminal, and a fifth conductive path extending from the fifth input terminal to the fifth output terminal; a sixth input terminal, a sixth output terminal, and a sixth conductive path extending from the sixth input terminal to the sixth output terminal; a seventh input terminal, a seventh output terminal, and a seventh conductive path extending from the seventh input terminal to the seventh output terminal; an eighth input terminal, an eighth output terminal, and an eighth conductive path extending from the eighth input terminal to the eighth output terminal; a first capacitor and a first inductor coupled in series between one of the fourth or fifth conductive paths and one of the third or sixth conductive paths; a second capacitor coupled between one of the first, second, seventh or eighth conductive paths and a node located between the first capacitor and the first inductor; wherein the fourth and fifth conductive paths comprise a first differential pair of conductive paths; wherein the first and second conductive paths comprise a second differential pair of conductive paths; wherein the third and sixth conductive paths comprise a third differential pair of conductive paths; and wherein the seventh and eighth conductive paths comprise a fourth differential pair of conductive paths. - View Dependent Claims (8, 9, 10, 11)
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12. A communications connector, comprising:
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a housing; a printed wiring board that is mounted at least partially within the housing, the printed wiring board having at least first through third input terminals and first through third output terminals; a first conductive path that connects the first input terminal to the first output terminal; a second conductive path that connects the second input terminal to the second output terminal; a third conductive path that connects the third input terminal to the third output terminal; a first inductor and a first capacitor coupled between the first conductive path and the second conductive path, where the first inductor and the first capacitor are arranged in series to provide a first series inductor-capacitor circuit; and a second capacitor coupled between the third conductive path and the second conductive path through the first inductor. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification