Communications Connectors Including Low Impedance Transmission Line Segments that Improve Return Loss and Related Methods

摘要

A communications connector includes a printed circuit board having a first internal conductive layer and first and second external conductive layers that are stacked with dielectric layers therebetween. The printed circuit board has input terminals, output terminals and signal current carrying conductive paths which electrically connect respective ones of the input and output terminals. The signal current carrying conductive paths are arranged in pairs to form differential transmission lines. The first signal current carrying conductive path includes a first segment that is on the first internal conductive layer which is routed in a vertically stacked arrangement with a second segment of the second signal current carrying conductive path, the first and second signal current carrying conductive paths being part of the same differential transmission line.

主权项

1. A communications connector comprising:
a printed circuit board having a first internal conductive layer, a first external conductive layer and a second external conductive layer, the first and second external conductive layers and the first internal conductive layer stacked along a vertical axis with dielectric layers therebetween; wherein the printed circuit board includes a plurality of input terminals, a plurality of output terminals and a plurality of signal current carrying conductive paths, each of which electrically connects a respective one of the input terminals to a respective one of the output terminals, the signal current carrying conductive paths arranged in pairs to form a plurality of differential transmission lines, and wherein a first signal current carrying conductive path includes a first segment that is on the first internal conductive layer of the printed circuit board which is routed in a vertically stacked arrangement with a second segment of a second signal current carrying conductive path, the first and second signal current carrying conductive paths being part of the same one of the differential transmission lines.