Printed circuit boards for communications connectors having openings that improve return loss and/or insertion loss performance and related connectors and methods

摘要

Printed circuit boards for communications connectors are provided that include a dielectric substrate formed of a first insulative material having a first dielectric constant. First and second pairs of input terminals and first and second pairs of output terminals are provided on the dielectric substrate. A first differential transmission line electrically connect the first pair of input terminals to the first pair of output terminals, and a second differential transmission line electrically connect the second pair of input terminals to the second pair of output terminals. The dielectric substrate includes an opening that is positioned between the conductive paths of the first differential transmission line, the opening containing a second insulative material having a second dielectric constant.

主权项

1. A printed circuit board for a communications connector, comprising:
a dielectric substrate formed of a first insulative material having a first dielectric constant; a first pair of input terminals on the dielectric substrate; a first pair of output terminals on the dielectric substrate; a first pair of conductive paths on the dielectric substrate that are arranged as a first differential transmission line that electrically connect the first pair of input terminals to the first pair of output terminals; a second pair of input terminals on the dielectric substrate; a second pair of output terminals on the dielectric substrate; and a second pair of conductive paths on the dielectric substrate that are arranged as a second differential transmission line that electrically connect the second pair of input terminals to the second pair of output terminals, wherein the dielectric substrate includes an opening that is positioned between the conductive paths of the first pair of conductive paths, the opening containing a second insulative material having a second dielectric constant that is different than the first dielectric constant.