Browse Prior Art Database

Direct Connection of Coaxial Cables into Printed Circuit Boards

IP.com Disclosure Number: IPCOM000044816D
Original Publication Date: 1984-Oct-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Manca, A: AUTHOR

Abstract

In this structure coaxial cable is attached directly to the board by two plated holes in a printed circuit board.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Direct Connection of Coaxial Cables into Printed Circuit Boards

In this structure coaxial cable is attached directly to the board by two plated holes in a printed circuit board.

The normal attachment of coaxial cable to a printed circuit board is done with a miniature coaxial connector. Aside from the relatively high cost of these coaxial connectors, precious real estate is required on the board to mount them. In some instances the design may be limited by the restraints of the board size.

In this connection clusters of pairs of adjacent holes are drilled into the board 14 as indicated in Fig. 1. For attaching a single cable a large hole 10 with a diameter to accept the braided shield diameter of the cable is formed, and a second hole 12 with a diameter to accept the center conductor is located adjacent the hole 10. As indicated in Fig. 2, the interiors of holes 10 and 12 are plated with coatings 16 and 18, respectively. The coatings are connected to various circuitry in board 14 as, for example, layer 18 is joined to signal wiring 20 and layer 16 is connected to ground plane 22. The braided shield 24 and the center conductor 26 of the cable are initially tinned and subsequently inserted into the holes 10 and 12 as illustrated in Fig. 2. Appropriate slack to form a loop 28 is provided. A solder reflow technique completes the cable connection to the board.

Disclosed anonymously

1