High speed, high density electrical connector with selective positioning of lossy regions

An electrical connector comprising:

• a) a plurality of signal conductors, the plurality of signal conductors being disposed in an array;
• and
• b) a housing comprising:
• i) at least one insulative member disposed to hold the plurality of signal conductors in the array;
• and
• ii) at least one lossy member disposed along a length of a signal conductor to provide a plurality of lossy regions between the signal conductor and an adjacent signal conductor with at least one insulative region between adjacent lossy regions, wherein:
• each signal conductor comprises a mating contact portion, a contact tail and an intermediate portion electrically coupling the mating contact portion to the contact tail, and the intermediate portion of each signal conductor is embedded in the at least one insulative member;
• the plurality of signal conductors are arranged in a plurality of columns, the plurality of signal conductors in each of the plurality of columns comprising a plurality of differential pairs;
• the at least one lossy member comprises a plurality of parallel regions and a plurality of perpendicular regions, each of the plurality of parallel regions being disposed parallel to a column of the plurality of columns and each of the plurality of perpendicular regions extending from a parallel region;
• the at least one insulative region comprises at least one opening in each of the plurality of parallel regions between adjacent perpendicular regions;
• the at least one lossy member comprises a lossy member adjacent each of the plurality of columns, each lossy member forming a plurality of channels having a bottom defined by the parallel region adjacent the column and sides defined by adjacent perpendicular regions, each of the channels receiving a differential pair and each of the plurality of lossy regions comprises a portion of at least one of the plurality of channels separated by the openings in the lossy member;
• each of the plurality of perpendicular regions being disposed between an adjacent differential pair within a column of the plurality of columns;
• and
• the lossy regions and the insulative regions are adapted and arranged to reduce crosstalk between adjacent pairs of signal conductors with limited loss to signals carried by the pairs of the adjacent pairs of signal conductors.

An electrical connector comprising:

• a) a plurality of signal conductors, the plurality of signal conductors being disposed in an array having at least one column;
• b) a plurality of ground conductors, each of the ground conductors:
• being disposed in a column of the at least one column;
• has a width extending in the direction of the column;
• being disposed adjacent at least one signal conductor of the plurality of signal conductors in the column;
• and
• having at least one edge facing an edge of the at least one adjacent signal conductor;
• and
• c) a housing comprising a plurality of electrically lossy regions, each lossy region disposed adjacent to and extending perpendicularly relative to a respective ground conductors of the plurality of ground conductors;
• wherein each perpendicularly extending lossy region of the plurality of lossy regions has a width less than the width of the respective ground conductor of the plurality of ground conductors such that the perpendicularly extending lossy region has a setback from the edge of the ground conductor in a direction away from the signal conductor adjacent the ground conductor.

An electrical connector comprising:

• a) a plurality of signal conductors, the plurality of signal conductors being disposed in an array having at least one column;
• b) a housing comprising a plurality of lossy regions, each lossy region adjacent at least one of the plurality of signal conductors;
• and
• c) a plurality of ground conductors, each of the ground conductors having an opening therethrough, and each of the ground conductors being disposed in a column of the at least one column, and each of the ground conductors being in electrical connection with a lossy region of the plurality of lossy regions;
• wherein a portion of the lossy region in electrical connection with each ground conductor is disposed through the opening in the ground conductor.

An electrical connector comprising:

• a) a plurality of signal conductors, the plurality of signal conductors being disposed in an array having a plurality of columns;
• b) a plurality of ground conductors, each of the ground conductors being disposed in a column of the plurality of columns;
• and
• c) a housing comprising a plurality of lossy regions, each lossy region comprising a binder with conductive fillers;
• wherein each of the lossy regions is positioned between two adjacent columns:
• i) in regions between two adjacent signal conductors, each of the two adjacent signal conductors being in a different one of the two adjacent columns;
• and
• ii) between two adjacent ground conductors, each of the two adjacent ground conductors being in a different one of the two adjacent columns.