Electrical connector system with cross-talk compensation

Details Electrical connector system with cross-talk compensation Electrical connector system with cross-talk compensation

H - Electricity

01

R

H01R 13/66 (2006.01) H05K 1/02 (2006.01) H05K 1/16 (2006.01) H01R 13/719 (2006.01)

Patent

CA 2313679

An electrical connector system with an electrical connector having signal contacts exhibiting unwanted cross-talk; and a circuit substrate engaging the connector. The substrate has a plurality of layers and at least first, second and third traces, each corresponding to a respective signal contact. The first trace includes: a first portion on at least one of the layers and adjacent a portion of the second trace in order to produce a first compensating cross-talk; a second portion on at least another of the plurality of layers and adjacent a portion of the third trace in order to produce a second compensating cross-talk. The substrate could also comprise a board having a first layer, a second layer, a plurality of inner layers between said first and second layers, and a ground plane on at least a lower surface of said board. The inner layers have at least first, second and third traces, with the first trace having portions adjacent the second and third traces in order to produce a first and a second compensating cross-talk, respectively. The system reduces unwanted cross-talk by introducing a first compensating cross-talk by inductively and capacitively coupling a first conductor and a second conductor adjacent the first conductor; and introducing a second compensating cross-talk by capacitively coupling the first conductor and a third conductor once removed from the first conductor. The compensating cross-talks offset the unwanted cross-talk to produce an acceptable cross--talk.

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