Methods of manufacture of communication connectors and communication connector circuits

• US 9,825,406 B2
• Filed: 08/07/2015
• Issued: 11/21/2017
• Est. Priority Date: 03/22/2011
• Status: Active Grant

• Current Assignee: Panduit Corporation
• Original Assignee: Panduit Corporation
• Inventors: Patel, Satish I., Fransen, Robert E., Straka, Frank M., Hagar, Melanie M.
• Primary Examiner(s): Trinh, Minh
• Application Number:
  US14/820,652
• Publication Number:
  US 20150349463A1
• Time in Patent Office: 837 Days
• CPC Class Codes: H01R 13/6461 Means for preventing cross-talk
• CPC Class Codes: H01R 13/6464 by adding capacitive elements
• CPC Class Codes: H01R 13/6466 on substrates, e.g. printed circuit boards [PCB]
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 24/58 Contacts spaced along longitudinal axis of engagement
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45
• CPC Class Codes: H01R 43/205 with a panel or printed circuit board
• 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: Y10T 29/4913 Assembling to base an electrical component, e.g., capacitor, etc.
• CPC Class Codes: Y10T 29/49224 with coating

Abstract

Embodiments of the present invention generally relate to communication connectors, and methods of manufacture thereof and their components. In some embodiments, the methods focus on reducing the net effect on electrical performance of communication connectors from variation in manufacturing, where the connectors include multiple stages of capacitive coupling.

Claims

1. A method of manufacturing a communication jack including multiple stages of capacitive coupling, said method comprising the steps of:

providing a first stage of said capacitive coupling via a first pad capacitor having a pair of first capacitor plates, each of said first capacitor plates having a substantially square shape; and

providing a second stage of said capacitive coupling via a second pad capacitor having a pair of second capacitor plates, each of said second capacitor plates having a substantially rectangular shape where no two adjacent sides have substantially equal dimensions wherein said first stage of said capacitive coupling and said second stage of said capacitive coupling have opposite polarities, a magnitude of said first stage is greater than a magnitude of said second stage, dimensions of each of said second capacitor plates are selected such that a manufacturing variation from respective target dimensions of said first pad capacitor and said second pad capacitor maintain a net capacitive coupling within said communication jack such that said communication jack meets at least one of a CAT5E, CAT6, CAT6A, CAT7, and CAT7A standards, and wherein each of said first capacitor plates has dimensions X and X, and a surface area A given by A=X*X;

wherein each of said second capacitor plates has dimensions Y and Z, and a surface area B given by B=Y*Z;

wherein said communication jack meets at least one of a CAT5E, CAT6, CAT6A, CAT7, and CAT7A standards;

wherein Z=√

A±

√

(A−

B); and

wherein Y=√

A∓

√

(A−

B).

2. A method of manufacturing a communication jack comprising the steps of:

providing a jack housing;

positioning a plurality of plug interface contacts at least partially within said jack housing;

positioning a plurality of insulation displacement contacts at least partially within said jack housing; and

providing crosstalk cancellation circuitry between said plurality of plug interface contacts and said plurality of insulation displacement contacts, said crosstalk cancellation circuitry including;

a first stage of capacitive coupling provided via a first pad capacitor having a pair of first capacitor plates, each of said first capacitor plates having a substantially square shape; and

a second stage of capacitive coupling provided via a second pad capacitor having a pair of second capacitor plates, each of said second capacitor plates having a substantially rectangular shape where no two adjacent sides have substantially equal dimensions, wherein said first stage of capacitive coupling and said second stage of capacitive coupling have opposite polarities, a magnitude of said first state is greater than a magnitude of said second stage, and each of said first capacitor plates has dimensions X and X, and a surface area A given by A=X*X;

wherein each of said second capacitor plates has dimensions Y and Z, and a surface area B given by B=Y*Z;

wherein A and B are selected such that said communication jack meets at least one of a CAT5E, CAT6, CAT6A, CAT7, and CAT7A standards;

wherein Z is selected such that Z=√

A±

√

(A−

B); and

wherein Y is selected such that Y=√

A∓

√

(A−

B).

3. The method of claim 2, wherein said crosstalk cancellation circuitry is positioned on at least one printed circuit board.