IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0354783
(2012-01-20)
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등록번호 |
US-8814595
(2014-08-26)
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발명자
/ 주소 |
- Cohen, Thomas S.
- Ren, Huilin
- Cartier, Jr., Marc B.
- Do, Trent K.
- Gailus, Mark W.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
22 인용 특허 :
23 |
초록
▼
A broadside coupled connector assembly has two sets of conductors, each separate planes. By providing the same path lengths, there is no skew between the conductors of the differential pair and the impedance of those conductors is identical. The conductor sets are formed by embedding the first set o
A broadside coupled connector assembly has two sets of conductors, each separate planes. By providing the same path lengths, there is no skew between the conductors of the differential pair and the impedance of those conductors is identical. The conductor sets are formed by embedding the first set of conductors in an insulated housing having a top surface with channels. The second set of conductors is placed within the channels so that no air gaps form between the two sets of conductors. A second insulated housing is filled over the second set of conductors and into the channels to form a completed wafer. The ends of the first and second sets of conductors and the blades are jogged in both an x- and y-coordinate to reduce crosstalk and improve electrical performance.
대표청구항
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1. An electrical connector comprising: a first plurality of conductors arranged in a first plane, wherein each of said first plurality of conductors are substantially parallel to each other and have different lengths, and wherein a first one of said first plurality of conductors is a first around co
1. An electrical connector comprising: a first plurality of conductors arranged in a first plane, wherein each of said first plurality of conductors are substantially parallel to each other and have different lengths, and wherein a first one of said first plurality of conductors is a first around conductor, a second one of said first plurality of conductors is a first signal conductor;a first insulative housing formed about at least a portion of said first plurality of conductors, said first insulative housing have a top surface;a second plurality of conductors arranged in a second plane parallel to the first plane, wherein each of said second plurality of conductors are substantially parallel to each other and have different lengths, wherein a first one of said second plurality of conductors is a second ground conductor and a second one of said second plurality of conductors is a second signal conductor, and wherein said second plurality of conductors are positioned at the top surface of said first insulative housing; and,a second insulative housing formed about at least a portion of said second plurality of conductors to affix said second plurality of conductors to said first insulative housing;wherein said first and second ground conductors form a ground pair and said first and second signal conductors form a differential signal pair, and wherein said first signal conductor is configured to carry a positive signal and said second signal conductor is configured to carry a negative signal. 2. The connector of claim 1, wherein said second insulative housing is formed after the first insulative housing is formed. 3. The connector of claim 1, wherein said first and second insulative housings are formed by injection molding. 4. The connector of claim 1, wherein the top surface of said first insulative housing includes a plurality of channels and each of said second plurality of conductors are positioned in a respective one of said plurality of channels. 5. The connector of claim 1, wherein each of said first plurality of conductors forms a pair with a respective one of said first plurality of conductors having a same length. 6. The connector of claim 1, wherein said first plurality of conductors is closely spaced with said second plurality of conductors. 7. The connector of claim 1, wherein said first plurality of conductors comprise a first plurality of signal conductors and a first plurality of ground conductors, and wherein said first plurality of signal conductors are arranged in an alternating relationship with said first plurality of ground conductors whereby each of said first plurality of signal conductors is adjacent two of said first plurality of ground conductors. 8. The connector of claim 1, wherein said first and second pluralities of conductors are assembled into a wafer. 9. The connector of claim 1, wherein one of said first plurality of conductors forms a differential pair with a respective one of said second plurality of conductors. 10. The connector of claim 1, wherein each of said first and second plurality of conductors have a first end, a second end and an intermediate portion extending between the first end and the second end. 11. The connector of claim 10, wherein the first end extends in a first direction and the second end extends in a second direction substantially orthogonal to the first direction. 12. The connector of claim 1, wherein the first and second plurality of conductors are each symmetrical. 13. An electrical connector comprising: a first plurality of conductors arranged in a first plane, said first plurality of conductors including a first signal conductor having a first length and a first ground conductor having a second length different from the first length;a second plurality of conductors arranged in a second plane substantially parallel to and spaced apart from the first plane, said second plurality of conductors including a second signal conductor having a first length the same as the first length of the first signal conductor of the first plurality of conductors and a second ground conductor having a second length the same as the second length of the second ground conductor of the first plurality of conductors;a lossy material bridge extending between the first ground conductor and the second ground conductora first housing formed around at least a portion of said first plurality of conductors,a second housing formed around at least a portion of said second plurality of conductors,a first opening formed in said first ground conductor, anda second opening formed in said second ground conductor, and wherein said lossy material bridge extends from the first housing to the second housing through the first and second openings. 14. The connector of claim 13, wherein said lossy material bridge connects to the first ground conductor and the second ground conductor. 15. The connector of claim 13, wherein said first housing and second housing comprise a lossy material and are integrally formed with said lossy material bridge. 16. The connector of claim 13, wherein said first and second pluralities of conductors are assembled into a wafer. 17. An electrical connector comprising: a first plurality of conductors arranged in a first plane, said first plurality of conductors including a first signal conductor having a first length and a first ground conductor having a second length different from the first length;a second plurality of conductors arranged in a second plane substantially parallel to and spaced apart from the first plane, said second plurality of conductors including a second signal conductor having a first length the same as the first length of the first signal conductor of the first plurality of conductors and a second ground conductor having a second length the same as the second length of the second ground conductor of the first plurality of conductors; anda lossy material bridge extending between the first ground conductor and the second ground conductor, wherein the first signal conductor of the first plurality of conductors forms a differential signal conductor pair with the second signal conductor of the second plurality of conductors, and the first ground conductor of the first plurality of conductors forms a ground conductor pair with the second ground conductor of the second plurality of conductors. 18. An electrical connector comprising: a first plurality of conductors arranged in a first plane, said first plurality of conductors including a first signal conductor having a first length and a first ground conductor having a second length different from the first length;a second plurality of conductors arranged in a second plane substantially parallel to and spaced apart from the first plane, said second plurality of conductors including a second signal conductor having a first length the same as the first length of the first signal conductor of the first plurality of conductors and a second ground conductor having a second length the same as the second length of the second ground conductor of the first plurality of conductors; anda lossy material bridge extending between the first ground conductor and the second ground conductor, wherein said first signal conductor is configured to receive a positive signal and said second signal conductor is configured to receive a negative signal and said first signal conductor is aligned with said second signal conductor. 19. An electrical connector comprising: a first plurality of conductors arranged in a first plane, said first plurality of conductors including a first signal conductor having a first length and a first ground conductor having a second length different from the first length;a second plurality of conductors arranged in a second plane substantially parallel to and spaced apart from the first plane, said second plurality of conductors including a second signal conductor having a first length the same as the first length of the first signal conductor of the first plurality of conductors and a second ground conductor having a second length the same as the second length of the second ground conductor of the first plurality of conductors; anda lossy material bridge extending between the first ground conductor and the second ground conductor, wherein the first ground conductor of said first plurality of conductors is aligned with the second ground conductor of said second plurality of conductors, and the first signal conductor of said first plurality of conductors is aligned with the second signal conductor of said second plurality of conductors. 20. An electrical connector comprising: a first plurality of conductors arranged in a first plane, wherein each of said first plurality of conductors are substantially parallel to each other;a first housing formed around at least a portion of said first plurality of conductors, said first housing having a top surface with channels formed in the top surface;a second plurality of conductors arranged in a second plane parallel to the first plane, wherein each of said second plurality of conductors are received in the channels of the first housing; and,a second housing formed around at least a portion of said second plurality of conductors and within said channels,wherein each of said first and second pluralities of conductors have at least one ground conductor and at least one signal conductor, the at least one ground conductor of said first plurality of conductors being aligned with the at least one ground conductor of said second plurality of conductors to form at least one ground pair, and the at least one signal conductor of said first plurality of conductors being aligned with the at least one signal conductor of said second plurality of conductors to form at least one differential signal conductor pair. 21. The connector of claim 20, wherein said first and second housings are made of an electrically insulative material. 22. The connector of claim 20, wherein said first and second housings each have an outer surface with channels aligned with the at least one ground pair, further comprising an outer housing made of lossy material, said outer housing encasing at least a portion of said first and/or second housings and received in the channels of said first and/or second housings whereby said lossy material is closer to said at least one ground pair than to the at least one differential signal conductor pair. 23. The connector of claim 20, wherein said first and second conductors each have a tail end, wherein the tail ends extend beyond said first and second housings. 24. An electrical connector comprising: a daughter card connector comprising: a first plurality of elongated conductors each having a first end, a second end opposite the first end, and an intermediate portion between the first and second ends, the intermediate portions arranged in a first plane; and,a second plurality of elongated conductors each having a first end, a second end opposite the first end, and an intermediate portion between the first and second ends, the intermediate portions arranged in a second plane parallel to and spaced apart from the first plane;wherein said second end of said first plurality of conductors each comprise a bend extending outward from the first plane, an elongated beam and a convex curved contact portion and said second end of said second plurality of conductors each comprise a bend extending outward from the second plane, an elongated beam and a convex curved contact portiona backplane connector for mating with said daughter card connector, said backplane connector comprising: a first plurality of signal conductor blades aligned in a first row and configured to mate with the second end of the signal conductors of said first plurality of conductors;a second plurality of signal conductor blades aligned in a second row parallel to and spaced apart from the first row, and configured to mate with the second end of the signal conductors of said second plurality of conductors; anda plurality of ground conductor blades aligned in a third row parallel to and positioned between the first and second rows, and configured to mate with the second end of the ground conductors of the first and second plurality of conductors. 25. The connector of claim 24, wherein said first plurality of conductors comprise ground conductors alternating with signal conductors, the convex curved contact portion of said ground conductors face outward away from the first plane, and the convex curved contact portion of said signal conductors face inward toward the first plane. 26. The connector of claim 25, wherein said second plurality of conductors comprise ground conductors alternating with signal conductors, the convex curved contact portion of said ground conductors face outward away from the second plane, and the convex curved contact portion of said signal conductors face inward toward the second plane. 27. The connector of claim 26, wherein the bends of said signal conductors of the first and second plurality of conductors is at a first distance from the first and second planes respectively, and bends of said ground conductors of the first and second plurality of conductors are at a second distance from the first and second planes respectively, and the first distance is smaller than the second distance such that the ground conductors shield the signal conductors. 28. The connector of claim 26, wherein said first and second plurality of signal conductor blades and said plurality of ground conductor blades each have an elongated body with a flat face that engages a respective conductor of the daughter card connector, said elongated body extending upward from a bottom of said backplane connector with the flat faces all facing in a direction transverse to the rows. 29. The connector of claim 26, wherein each of said first plurality of signal conductor blades are aligned with a respective one of said second plurality of signal conductor blades to define a plurality of differential signal pair blades, and each of said plurality of differential signal pair blades is arranged in an alternating relationship with each of said plurality of ground conductor blades. 30. The connector of claim 29, wherein each of said differential signal pair blades is located at a center of four ground conductor blades arranged in a substantially square configuration. 31. The connector of claim 26, said daughter card connector further comprising a post having opposing side walls configured to retain the first and second plurality of signal conductor blades therein, whereby said side walls and said first and second plurality of signal conductor blades define a central open space having air. 32. The connector of claim 26, wherein said plurality of ground conductor blades comprise a first plurality of ground conductor blades aligned in the third row parallel to and positioned between the first and second rows, and configured to mate with the second end of the ground conductors of the first plurality of conductors, and a second plurality of ground conductor blades aligned in a fourth row parallel to and positioned between the first and second rows, and configured to mate with the second end of the ground conductors of the second plurality of conductors. 33. The connector of claim 32, wherein each of said first plurality of ground conductor blades are arranged back-to-back and touching a respective one of said second plurality of ground conductor blades to define a plurality of ground conductor blade pairs. 34. The connector of claim 32, wherein each of said first plurality of ground conductor blades are arranged back-to back with a respective one of said second plurality of ground conductor blades, and further comprising lossy material positioned between the back-to-back first and second plurality of ground conductor blades. 35. The connector of claim 26, wherein said first plurality of conductors comprise ground conductors alternating with signal conductors, the convex curved contact portion of said ground and signal conductors face inward toward the second plane, and further wherein said second plurality of conductors comprise ground conductors alternating with signal conductors, the convex curved contact portion of said ground and signal conductors of said second plurality of conductors project inward toward the first plane. 36. A connector comprising: a first plurality of signal contacts;a first plurality of ground contacts aligned in a first column with said first plurality of signal contacts in an alternating relationship of ground contacts and signal contacts;a second plurality of signal contacts, wherein each of said second plurality of signal conductors is aligned with and forms a differential signal pair with a respective one of said first plurality of signal conductors; anda second plurality of ground contacts aligned in a second column with said second plurality of signal contacts in an alternating relationship of ground contacts and signal contacts,wherein said second column is parallel to and spaced apart from said first column, said first plurality of ground contacts are configured to form first rows with said second plurality of signal contacts, and said second plurality of ground contacts are configured to form second rows with said first plurality of signal contacts, and the first and second rows alternate with one another. 37. A connector comprising: a first plurality of signal contacts aligned in a first column;a first plurality of ground contacts aligned in a second column;a second plurality of ground contacts aligned in a third column;a second plurality of signal contacts aligned in a fourth column;first and second elongated signal conductors each having one of said first and second plurality of signal contacts at one end respectively; andfirst and second elongated ground conductors each having one of said first and second plurality of ground contacts respectively,wherein said first and second signal and ground contacts are jogged in a first and second directly with respect to the first and second signal and ground conductors,wherein the first, second, third and fourth columns are parallel to and spaced apart from each other and arranged so that the first column is adjacent the second column, the second column is adjacent the third column and the third column is adjacent the fourth column, andwherein said first plurality of ground contacts are configured to form first rows with said second plurality of signal contacts, and said second plurality of ground contacts are configured to form second rows with said first plurality of signal contacts, and the first rows alternate with the second rows. 38. The connector of claim 37, further comprising a printed signal board having vias aligned with said first and second ground contacts and said first and second signal contacts. 39. The connector of claim 37, wherein said first signal conductors are broadside coupled with said second signal conductors.
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