US 11,057,987 B2
Asymmetric dual bend skew compensation for reducing differential mode to common mode conversion
Jianquan Lou, Shanghai (CN); Alpesh U. Bhobe, Sunnyvale, CA (US); Juhi Garg, Bangalore (IN); and Joel Richard Goergen, Soulsbyville, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed on Feb. 14, 2019, as Appl. No. 16/276,073.
Prior Publication US 2020/0267833 A1, Aug. 20, 2020
Int. Cl. H05K 1/02 (2006.01); H01P 3/08 (2006.01); H01P 1/02 (2006.01)
CPC H05K 1/0248 (2013.01) [H01P 1/02 (2013.01); H01P 3/08 (2013.01); H05K 1/0243 (2013.01); H05K 1/0245 (2013.01); H05K 2201/09218 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a printed circuit board; and
a differential conductor pair extending along a path between a first component configured to generate a differential signal and a second component configured to receive the differential signal, wherein the path comprises at least one turn in which the differential conductor pair changes direction;
wherein a first conductor of the differential conductor pair comprises a first set of bends at a location proximate to the turn to provide skew compensation, said first set of bends comprising a first bend angled from a first straight portion extending along a longitudinal axis generally parallel to a second conductor of the differential conductor pair and a last bend angled towards a second straight portion extending along the same longitudinal axis generally parallel to said second conductor, said second conductor comprising a second set of bends to reduce differential mode to common mode conversion, said second set of bends asymmetric with said first set of bends and aligned therewith such that said second set of bends is longitudinally positioned between said first bend and said last bend of said first set of bends.