Patent ID: 8878630
Filing Date: 2014-11-04
Classification: H03H,H04B

Abstract:
1. A digital electronic device comprising: a grounded metal portion comprising a first metal plate electrically connected to ground and a first substrate disposed on the first metal plate; a layer of differential-mode reference metal portion comprising a second substrate and a second metal plate electrically connected to the first metal plate by at least a conductive structure a pair of differential signal lines, at least one portion thereof being disposed on the second substrate of the layer of differential-mode reference metal portion, the pair of differential signal lines being electromagnetically coupled to the second metal plate of the layer of differential-mode reference metal portion; and an equalizer electrically connected to the pair of differential signal lines, wherein the digital electronic device is configured to suppress common-mode noises; wherein the layer of differential-mode reference metal portion is coplanar with the grounded metal portion and the first metal plate and the second metal plate are separated from each other; and wherein the at least one conductive structure has a resistor configured to suppress direct current or low frequency common-mode noise.