Plug/jack system having PCB with lattice network
First Claim
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1. A jack for use in a communication system comprising:
- at least two pair of plug interface contacts, each pair of plug interface contacts associated with a differential signal of the communication system;
at least two pair of conductive transmission paths connected to the at least two pair of plug interface contacts, the at least two pair of conductive transmission paths passing through a compensation zone and a crosstalk zone; and
a lattice network in at least one of the crosstalk zone and the compensation zone, the lattice network having a first circuit connected from a first conductor of a first pair of conductive transmission paths of the at least two pair of conductive transmission paths to a first conductor of a second pair of conductive transmission paths of the at least two pair of conductive transmission paths and a second circuit connected from the first conductor of the first pair of conductive transmission paths of the at least two pair of conductive transmission paths to a second conductor of the second pair of conductive transmission paths of the at least two pair of conductive transmission paths, wherein a ratio of a magnitude of the first circuit and a magnitude of the second circuit varies with frequency.
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Abstract
A jack is provided that has compensation and crosstalk zones. At least one of the zones employs a lattice network that couples conductors in the zone to reduce the net crosstalk in the plug/jack system. The lattice network has a frequency response slope that is different from the frequency response slope of a first-order coupling or of a series LC circuit coupling. A variety of lattice networks are provided.
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Citations
7 Claims
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1. A jack for use in a communication system comprising:
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at least two pair of plug interface contacts, each pair of plug interface contacts associated with a differential signal of the communication system; at least two pair of conductive transmission paths connected to the at least two pair of plug interface contacts, the at least two pair of conductive transmission paths passing through a compensation zone and a crosstalk zone; and a lattice network in at least one of the crosstalk zone and the compensation zone, the lattice network having a first circuit connected from a first conductor of a first pair of conductive transmission paths of the at least two pair of conductive transmission paths to a first conductor of a second pair of conductive transmission paths of the at least two pair of conductive transmission paths and a second circuit connected from the first conductor of the first pair of conductive transmission paths of the at least two pair of conductive transmission paths to a second conductor of the second pair of conductive transmission paths of the at least two pair of conductive transmission paths, wherein a ratio of a magnitude of the first circuit and a magnitude of the second circuit varies with frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification