High speed plug connector
View Patent ↗A connector for use with high speed signals. The connector has a housing, which includes a base portion extending in a longitudinal direction and a tongue portion extending from the base portion in a mating direction perpendicular to the longitudinal direction. The housing has slots extending through the base portion to surfaces of the tongue portion and configured to hold terminals. The housing has a lossy material sized and shaped to couple with at least the portions of ground terminals held in the base portion along their lengths. The lossy material may protrude towards spaces between the portions of signal terminals held in the base portion along their lengths. The tail portions of the terminals may jog toward a plane that the lossy material extends. Such a connector may be used to meet signal integrity requirements in connectors designed for 64 Gbps and beyond.
1. An electrical connector comprising:
a housing comprising a base portion extending in a longitudinal direction, a tongue portion extending from the base portion in a mating direction perpendicular to the longitudinal direction, and a plurality of slots extending through the base portion to surfaces of the tongue portion;
a plurality of conductive elements each held by one slot of the plurality of slots of the housing, the plurality of conductive elements comprising signal conductors and ground conductors; and
a lossy material integral with the housing at a joint between the base portion and the tongue portion such that both the mechanical strength and the electrical performance of the connector are enhanced, wherein:
each conductive element comprises a first section held in the base portion and a second section held by the tongue portion, and
the lossy material is coupled to both the first sections and second sections of the ground conductors.
2. The electrical connector of claim 1 , wherein
the lossy material is molded to the housing to span the joint between the base portion and the tongue portion.
3. The connector of claim 1 , wherein:
the plurality of conductive elements each comprises a first portion extending in the mating direction and disposed on the surfaces of the tongue portion, a second portion opposite the first portion and extending out of the base portion, and a third portion extending between the first portion and the second portion, and
the lossy material is coupled to at least part of the first portions of the ground conductors.
4. The connector of claim 1 , wherein:
the plurality of conductive elements each comprises a contact portion extending in the mating direction and held by the tongue portion, a tail portion opposite the contact portion and extending out of the base portion, and an intermediate portion extending between the contact portion and the tail portion, and
for each conductive element, the intermediate portion comprises the first section held in the base portion and the second section held by the tongue portion.
5. The connector of claim 1 , wherein:
the lossy material is coupled to the ground conductors along the entire length of the base portion in the mating direction.
6. The connector of claim 1 , wherein:
the plurality of slots of the housing comprise a first row of slots disposed along a first surface of the tongue portion and a second row of slots disposed along a second surface of the tongue portion, the second surface opposite the first surface,
the housing comprises a chamber disposed between the first row of slots and the second row of slots, and
the lossy material is disposed in the chamber.
7. The connector of claim 1 , wherein:
the tongue portion of the housing comprises a platform comprising a raised surface, and
the lossy material comprises a corresponding platform such that the lossy material is brought closer to the conductive elements held in the slots extending on the raised surface of the platform of the tongue portion of the housing than without the corresponding platform of the lossy material.
8. The connector of claim 1 , wherein:
the signal conductors are disposed in pairs separated by the ground conductors, and
the lossy material comprises portions protruding towards spaces between the signal conductors of the pairs.
9. An electrical connector comprising:
a housing comprising a base portion extending in a longitudinal direction, a tongue portion extending from the base portion in a mating direction perpendicular to the longitudinal direction, and a plurality of slots extending through the base portion to surfaces of the tongue portion;
a plurality of conductive elements each held by one slot of the plurality of slots of the housing, the plurality of conductive elements comprising a plurality of pairs of signal conductors separated by ground conductors; and
a lossy material disposed in the housing, wherein, for each pair of signal conductors, the lossy material comprises a portion protruding towards a space between the signal conductors of the pair.
10. The connector of claim 9 , wherein:
the lossy material spans a joint between the base portion and the tongue portion.
11. The connector of claim 9 , wherein:
the lossy material is molded to the housing in a joint between the base portion and the tongue portion.
12. The connector of claim 9 , wherein:
for each pair of signal conductors, the portion of the lossy material protruding towards the space between the signal conductors of the pair extends along the entire length of the base portion in the mating direction.
13. The connector of claim 9 , wherein:
for each pair of signal conductors, the portion of the lossy material protruding towards the space between the signal conductors of the pair has a dovetail-shaped cross-section.
14. The connector of claim 9 , wherein:
the lossy material comprises protrusions elongating in the mating direction and coupled to the ground conductors.
15. The connector of claim 14 , wherein:
the portions of the lossy material protruding towards the spaces between the signal conductors of the pairs are disposed between the protrusions coupled to the ground conductors.
16. The connector of claim 15 , wherein:
the portions of the lossy material protruding towards the spaces between the signal conductors of the pairs are shorter than the protrusions coupled to the ground conductors in the mating direction.
17. An electrical connector comprising:
a housing comprising a base portion extending in a longitudinal direction, a tongue portion extending from the base portion in a mating direction perpendicular to the longitudinal direction; and
a plurality of conductive elements each comprising a contact portion extending in the mating direction and a tail portion opposite the contact portion and extending out of the base portion, the plurality of conductive elements comprising a first plurality of conductive elements and a second plurality of conductive elements, wherein:
the tail portions of the first plurality of conductive elements jog towards the second plurality of conductive elements,
the tail portions of the second plurality of conductive elements jog towards the first plurality of conductive elements,
the housing comprises a first row of slots extending through the base portion to a first surface of the tongue portion, and a second row of slots extending through the base portion to a second surface of the tongue portion, and
the first plurality of conductive elements each is disposed in one slot of the first row of slots and the second plurality of conductive elements each is disposed in one slot of the second row of slots.
18. The connector of claim 17 , wherein:
the tail portions of the plurality of conductive elements comprise mounting surfaces aligned on a same plane.
19. The connector of claim 18 , wherein:
the plurality of conductive elements each comprises an intermediate portion extending between the contact portion and the tail portion, and
for each of the plurality of conductive elements, the tail portion comprises a straight section extending from the intermediate portion, an end section comprising the mounting surface, and a transition section extending between the straight section and the end section.
20. The connector of claim 19 , wherein:
the transition sections of the plurality of conductive elements are of a same length.
21. The connector of claim 1 , wherein:
the plurality of slots comprise a first row of slots extending through the base portion to a first surface of the tongue portion, and a second row of slots extending through the base portion to a second surface of the tongue portion,
the plurality of conductive elements comprises a first plurality of conductive elements and a second plurality of conductive elements, and
the first plurality of conductive elements each is disposed in one slot of the first row of slots and the second plurality of conductive elements each is disposed in one slot of the second row of slots.
22. The connector of claim 17 , comprising:
a lossy material disposed in the housing and elongating in the longitudinal direction between the first plurality of conductive elements and the second plurality of conductive elements.
23. The connector of claim 17 , wherein:
the tongue portion of the housing comprises a platform comprising a raised surface, and
the contact portions of selected ones of the first plurality of conductive elements are disposed on the raised surface.