CN102522645B - Near-end crosstalk improvement method for backplane connector - Google Patents
Near-end crosstalk improvement method for backplane connector Download PDFInfo
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- CN102522645B CN102522645B CN 201110419696 CN201110419696A CN102522645B CN 102522645 B CN102522645 B CN 102522645B CN 201110419696 CN201110419696 CN 201110419696 CN 201110419696 A CN201110419696 A CN 201110419696A CN 102522645 B CN102522645 B CN 102522645B
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- back panel
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005452 bending Methods 0.000 claims description 23
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The invention discloses a near-end crosstalk improvement method for a backplane connector, comprising the following steps that more than one signal terminals is arranged side by side, each signal terminal comprises a backplane connecting part, a splicing part and a middle connecting part, the backplane connecting part and the splicing part are arranged vertical to each other, a first signal terminal extends out from the splicing part, is bended downwards with a certain angle, upwarps upwards and then is bended downwards so as to form the backplane connecting part which is vertical to the splicing part, and all the signal terminals behind a second signal terminal extend out from the respective splicing part, are bended downwards with a certain angle and then are bended downwards again so as to form the respective backplane connecting part which is vertical to the respective splicing part. With the adoption of a contact part of the backplane connector, the structure of the backplane connector is optimized and improved; and with simulation analysis of professional software, near-end crosstalk of the backplane connector in a high-speed signal circuit is effectively lowered, and the reliability that a product transfer signals with high speed is greatly improved.
Description
Technical field
The present invention discloses the near-end cross improvement method of the method that a kind of improvement is crosstalked, particularly a kind of back panel connector.
Background technology
The field of electronic design of current develop rapidly, high speed and miniaturization have become inevitable trend.Meanwhile, the edge steepening that the raising of signal frequency in the circuit design process, signal change, the size decreases of circuit board, wiring density strengthen, increasing of the circuit board number of plies and the thickness of slab that causes reduce etc. problem, then can cause various interference problems.In all problems of Signal Integrity, crosstalk phenomenon and influence are very general, and crosstalking to appear at chip internal, also may appear on the circuit board, on the connector, chip encapsulation is gone up and cable on.Excessive crosstalking may cause the false triggering of circuit, cause system can't operate as normal etc. serious phenomenon.Therefore, in the connector design, just consider cross-interference issue, consider the reliability and stability of signal transmission, back panel connector of the prior art, when design, bending part adopts the line alignment at 135 ° of angles, and still, the effect that its elimination is crosstalked is good inadequately.
Summary of the invention
Eliminate the imperfect shortcoming of effect of crosstalking at the above-mentioned back panel connector of mentioning of the prior art, the invention provides a kind of near-end cross improvement method of new back panel connector, it adopts special terminal to arrange, and has effectively improved the near-end cross of back panel connector.
The technical scheme that the present invention solves its technical problem employing is: a kind of near-end cross improvement method of back panel connector, this method is that more than one signal terminal is arranged side by side, each signal terminal comprises the backboard connecting portion, Plug Division and middle interconnecting piece, the backboard connecting portion is vertical with the Plug Division to be arranged, after first signal terminal is stretched out by the Plug Division, downwards behind the bending certain angle, be upturned, bending downwards again, form the backboard connecting portion vertical with the Plug Division, after all later signal terminals of secondary signal terminal stretch out by the Plug Division, bend certain angle downwards after, bending downwards forms the backboard connecting portion vertical with the Plug Division again.
The technical scheme that the present invention solves its technical problem employing further comprises:
The angle that described secondary signal terminal bends downwards for the first time is greater than the angle of the 3rd signal terminal downward bending first time.
The angle that described the 3rd signal terminal bends downwards for the first time is greater than the angle of the 4th signal terminal downward bending first time.
All later signal terminal each several parts of described the 4th signal terminal be arranged in parallel.
The for the first time downward bending angle of described first signal terminal is 20 °-30 °, is preferably 25 °, and the angle that is upturned is 8 °-10 °, is preferably 9.07 °.
The angle that described secondary signal terminal bends downwards for the first time is 150 °-160 °, and optimized angle is 153 °.
The angle that described the 3rd signal terminal bends downwards for the first time is 145 °-155 °, and optimized angle is 150 °.
The angle that described the 4th signal terminal and later earth terminal bend downwards for the first time is 140 °-150 °, is preferably 145 °.
Described Plug Division is two terminations, and two terminations are twisted 90 ° in the opposite direction.
The invention has the beneficial effects as follows: the contact that adopts the back panel connector of the inventive method, structure to back panel connector is optimized improvement, by the professional software sunykatuib analysis, reduce its near-end cross in high-speed signal circuit effectively, greatly improved the reliability of product high-speed transfer signal.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is back panel connector terminal structure schematic diagram conventional in the prior art.
Fig. 2 is back panel connector terminal near-end cross sound schematic diagram conventional in the prior art.
Fig. 3 analyses result schematic diagram for archetype near-end cross cent.
Fig. 4 is terminal structure schematic diagram of the present invention.
Fig. 5 is the near-end cross sound schematic diagram between the first terminal group of the present invention and the 3rd terminal group.
Fig. 6 is the near-end cross sound schematic diagram between the first terminal group of the present invention and second terminal group.
Fig. 7 is the near-end cross sound schematic diagram between the present invention's second terminal group and the 3rd terminal group.
Fig. 8 is the near-end cross sound schematic diagram between the present invention's second terminal group and the 4th terminal group.
Fig. 9 is the first terminal group differential impedance schematic diagram of the present invention.
Figure 10 is the present invention's second terminal group differential impedance schematic diagram.
Figure 11 is the present invention's the 3rd terminal group differential impedance schematic diagram.
Figure 12 is the present invention's the 4th terminal group differential impedance schematic diagram.
Figure 13 inserts the loss schematic diagram for the first terminal group of the present invention.
Figure 14 inserts the loss schematic diagram for the present invention's second terminal group.
Figure 15 inserts the loss schematic diagram for the present invention's the 3rd terminal group.
Figure 16 inserts the loss schematic diagram for the present invention's the 4th terminal group.
Among the figure, the curve chart of 1-archetype, 2-curve chart of the present invention, the near-end crosstalk curve of 3-archetype first signal terminal and the 3rd signal terminal, the near-end crosstalk curve of 4-archetype secondary signal terminal and the 4th signal terminal, the near-end crosstalk curve of 5-archetype secondary signal terminal and the 3rd signal terminal, the near-end crosstalk curve of 6-archetype first signal terminal and secondary signal terminal, 7-insulating body, 8-backboard connecting portion, the 9-Plug Division, the 10-middle interconnecting piece, 11-first signal terminal, 12-secondary signal terminal, 13-the 3rd signal terminal, 14-the 4th signal terminal.
Embodiment
Present embodiment is the preferred embodiment for the present invention, and other all its principles are identical with present embodiment or approximate with basic structure, all within protection range of the present invention.
Please referring to accompanying drawing 4, the present invention is a kind of near-end cross improvement method of back panel connector, adopt the back panel connector structure of the inventive method for be provided with many row's terminal boards at insulating body 7, each is arranged terminal board and be arranged in parallel, every row's terminal board includes more than one signal terminal, the present invention mainly is by changing the arrangement mode of the signal terminal in the row of signal terminals row, improving the near-end cross of connector.More than one signal terminal is arranged side by side among the present invention, each signal terminal comprises backboard connecting portion 8, Plug Division 9 and middle interconnecting piece 10, the backboard connecting portion is vertical with the Plug Division to be arranged, in the present embodiment, Plug Division 9 is two terminations, two terminations are twisted 90 ° of formation in the opposite direction, and namely Plug Division 9 is that twist relatively two terminations, and its direction of reversing is opposite.In the present embodiment, be that example describes with eight signal terminals of every row, when specifically implementing, the number of every row of signal terminals can be set according to concrete needs, in the present embodiment, only relates to the wherein improvement of the arrangement form of four signal terminals.In the present embodiment, after first signal terminal 11 is stretched out by Plug Division 9, downwards behind the bending certain angle, be upturned, bending downwards again, form the backboard connecting portion 8 vertical with Plug Division 9, in the present embodiment, first signal terminal, 11 for the first time downward bending angles are 20 °-30 °, are preferably 25 °, the angle that is upturned is 8 °-10 °, optimized angle is 9.07 °, after secondary signal terminal 12 all later signal terminals stretch out by Plug Division 9, bend certain angle downwards after, bending downwards again forms the backboard connecting portion 8 vertical with Plug Division 9.In the present embodiment, the angle that secondary signal terminal 12 bends downwards for the first time is greater than the angle of the 3rd signal terminal downward bending 13 first time, wherein, the angle that secondary signal terminal 12 bends downwards for the first time is 150 °-160 °, optimized angle is 153 °, the angle that the 3rd signal terminal 13 bends downwards for the first time is 145 °-155 °, and optimized angle is 150 °.In the present embodiment, the angle that the 3rd signal terminal 13 bends downwards for the first time is greater than the angle of the 4th signal terminal downward bending 14 first time.The angle that the 4th signal terminal 14 and later signal terminal bend downwards for the first time is 140 °-150 °, is preferably 145 °.In the present embodiment, the 3rd signal terminal 13 to the four signal terminals 14 wide 0.1mm, first signal terminal 11 and secondary signal terminal 12 to the four signal terminals 14 wide 0.2mm, the 4th signal terminal 14 is identical with the width of all the other signal terminals.Among the present invention, also be provided with the earth terminal corresponding with signal terminal on the backboard, earth terminal can adopt conventional form setting.
Please in conjunction with referring to accompanying drawing 5 to accompanying drawing 16, after adopting structure of the present invention, from improving the result, the near-end crosstalk maximum is improved as 2.5dB between first signal and the 3rd signal terminal 13, near-end crosstalk between first signal terminal 11 and secondary signal terminal 12 is making a difference greatly owing to resonance behind the 2.5G, and the near-end crosstalk difference between other differential pairs is little substantially.
Adopt the contact of the back panel connector of the inventive method, structure to back panel connector is optimized improvement, by the professional software sunykatuib analysis, reduced its near-end cross in high-speed signal circuit effectively, greatly improved the reliability of product high-speed transfer signal.
Claims (14)
1. the near-end cross improvement method of a back panel connector, it is characterized in that: described method is that plural signal terminal is arranged side by side, each signal terminal comprises the backboard connecting portion, Plug Division and middle interconnecting piece, the backboard connecting portion is vertical with the Plug Division to be arranged, after first signal terminal is stretched out by the Plug Division, downwards behind the bending certain angle, be upturned, bending downwards again, form the backboard connecting portion vertical with the Plug Division, after all later signal terminals of secondary signal terminal stretch out by the Plug Division, bend certain angle downwards after, bending downwards forms the backboard connecting portion vertical with the Plug Division again.
2. the near-end cross improvement method of back panel connector according to claim 1 is characterized in that: the angle that the angle of the described secondary signal terminal first time of bending downwards bends downwards for the first time greater than the 3rd signal terminal.
3. the near-end cross improvement method of back panel connector according to claim 1 is characterized in that: the angle that the angle of the 3rd signal terminal first time of bending downwards bends downwards for the first time greater than the 4th signal terminal.
4. the near-end cross improvement method of back panel connector according to claim 1, it is characterized in that: all later signal terminal each several parts of the 4th signal terminal be arranged in parallel.
5. the near-end cross improvement method of back panel connector according to claim 1 is characterized in that: described first signal terminal for the first time downwards bending angle be 20 °-30 °, the angle that is upturned is 8 °-10 °.
6. the near-end cross improvement method of back panel connector according to claim 5 is characterized in that: described first signal terminal for the first time downwards bending angle be 25 °.
7. the near-end cross improvement method of back panel connector according to claim 5 is characterized in that: described first signal terminal angle that is upturned is 9.07 °.
8. the near-end cross improvement method of back panel connector according to claim 1 is characterized in that: described secondary signal terminal for the first time downwards the angle of bending be 150 °-160 °.
9. the near-end cross improvement method of back panel connector according to claim 8 is characterized in that: described secondary signal terminal for the first time downwards the angle of bending be 153 °.
10. the near-end cross improvement method of back panel connector according to claim 3 is characterized in that: described the 3rd signal terminal for the first time downwards the angle of bending be 145 °-155 °.
11. the near-end cross improvement method of back panel connector according to claim 10 is characterized in that: the angle that described the 3rd signal terminal bends downwards for the first time is 150 °.
12. the near-end cross improvement method of back panel connector according to claim 4 is characterized in that: the angle that described the 4th signal terminal and later earth terminal bend downwards for the first time is 140 °-150 °.
13. the near-end cross improvement method of back panel connector according to claim 12 is characterized in that: the angle that described the 4th signal terminal and later earth terminal bend downwards for the first time is 145 °.
14. the near-end cross improvement method of back panel connector according to claim 1 is characterized in that: described Plug Division is two terminations, and two terminations are twisted 90 ° in the opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110419696 CN102522645B (en) | 2011-12-15 | 2011-12-15 | Near-end crosstalk improvement method for backplane connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110419696 CN102522645B (en) | 2011-12-15 | 2011-12-15 | Near-end crosstalk improvement method for backplane connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102522645A CN102522645A (en) | 2012-06-27 |
| CN102522645B true CN102522645B (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110419696 Expired - Fee Related CN102522645B (en) | 2011-12-15 | 2011-12-15 | Near-end crosstalk improvement method for backplane connector |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6626213B2 (en) | 2016-01-19 | 2019-12-25 | モレックス エルエルシー | Integrated routing assembly and system using the same |
| CN110247233B (en) * | 2018-03-09 | 2021-12-21 | 泰科电子(上海)有限公司 | Connector with a locking member |
| CN109830820B (en) * | 2018-07-30 | 2021-04-23 | 番禺得意精密电子工业有限公司 | Electrical connector assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202405454U (en) * | 2011-12-15 | 2012-08-29 | 深圳格力浦电子有限公司 | Near-end crosstalk improved structure of backplane connector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003017193A (en) * | 2001-07-04 | 2003-01-17 | Nec Tokin Iwate Ltd | Shield connector |
| WO2005011061A2 (en) * | 2003-07-17 | 2005-02-03 | Litton Systems, Inc. | High-speed electrical connector |
| US7837475B2 (en) * | 2008-08-15 | 2010-11-23 | Fujitsu Component Limited | Connector with reinforced mounting structure |
| JP2011159470A (en) * | 2010-01-29 | 2011-08-18 | Fujitsu Component Ltd | Male connector, female connector, and connector |
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2011
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202405454U (en) * | 2011-12-15 | 2012-08-29 | 深圳格力浦电子有限公司 | Near-end crosstalk improved structure of backplane connector |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-17193A 2003.01.17 |
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| CN102522645A (en) | 2012-06-27 |
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Inventor after: Wu Mingze Inventor after: Xie Congfang Inventor before: Wu Mingze |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 |
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