Method and system for improving crosstalk attenuation within a plug/jack connection and between nearby plug/jack combinations

• US 9,991,638 B2
• Filed: 05/02/2016
• Issued: 06/05/2018
• Est. Priority Date: 12/02/2008
• Status: Active Grant

• Current Assignee: Panduit Corporation
• Original Assignee: Panduit Corporation
• Inventors: Straka, Frank M., Tellas, Ronald L., German, Jason J., Vaitkus, Vytas J.
• Primary Examiner(s): Abrams, Neil
• Application Number:
  US15/143,769
• Publication Number:
  US 20160248203A1
• Time in Patent Office: 764 Days
• Field of Search: 43960735, 43960738, 4396074, 43960754, 43960755
• CPC Class Codes: H01R 13/516 Means for holding or embracing insulating body, e.g. casing , hoods
• CPC Class Codes: H01R 13/518 for holding or embracing several coupling parts, e.g. frames
• CPC Class Codes: H01R 13/6466 on substrates, e.g. printed circuit boards [PCB]
• CPC Class Codes: H01R 13/6473 Impedance matching
• CPC Class Codes: H01R 13/6476 by making an aperture, e.g. a hole
• CPC Class Codes: H01R 13/658 High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse] coaxial coupling devices specially adapted for high frequency H01R24/40; for flat or ribbon cable connectors H01R12/774; for coaxial cable H01R9/05
• CPC Class Codes: H01R 2107/00 Four or more poles
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45
• CPC Class Codes: H05K 1/0228 Compensation of cross-talk by a mutually correlated lay-out of printed circuit traces, e.g. for compensation of cross-talk in mounted connectors balanced signal pairs H05K1/0245
• CPC Class Codes: H05K 1/0239 Signal transmission by AC coupling
• CPC Class Codes: H05K 2201/10189 Non-printed connector
• CPC Class Codes: Y10S 439/941 Crosstalk suppression

Abstract

An RJ45 Communication jack has a housing with a top, bottom, front, and back. A foil is immediately adhered to and partially covers the housing. A top or bottom of the housing is covered by a first portion and a second portion of the foil wherein the first portion and the second portion are separated by a nonconductive gap. The gap extends from the front of the housing to the rear of the housing. With such foils placed on each one of a series of adjacent jack housing, common mode noise caused by capacitive coupling between adjacent ones of the foils is reduced.

Claims

1. A foil for use on a communications connector wherein the foil comprises a plurality of metallized and non-metallized sections such that each metallized section is electrically isolated from every other metallized section by at least one non-metallized section wherein the foil at least partially covers a housing of a communications connector and further wherein the foil covers a side of the housing and at least one of a top or a bottom of the housing and further wherein the metalized sections do not overlap each other.