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 communications connector, comprising:
first through fourth pairs of input contacts; first through fourth pairs of wire connection contacts; a printed circuit board that comprises a dielectric substrate formed of a first dielectric material that has a first dielectric constant and first through fourth differential transmission lines that electrically connect the first through fourth pairs of input contacts to the respective first through fourth pairs of wire connection contacts; wherein the printed circuit board includes a first opening that is positioned between a first conductive path of the first differential transmission line and a first conductive path of the third differential transmission line, and a second opening that is positioned between a second conductive path of the first differential transmission line and a second conductive path of the third differential transmission line, and wherein the first opening is filled with a second dielectric material having a second dielectric constant that is different from the first dielectric constant and the second opening is filled with a third dielectric material having a third dielectric constant that is different from the first dielectric constant.