CN108124375A - Overcome the method for transmission line phase difference and its transmission wire wiring structure - Google Patents
Overcome the method for transmission line phase difference and its transmission wire wiring structure Download PDFInfo
- Publication number
- CN108124375A CN108124375A CN201611085127.3A CN201611085127A CN108124375A CN 108124375 A CN108124375 A CN 108124375A CN 201611085127 A CN201611085127 A CN 201611085127A CN 108124375 A CN108124375 A CN 108124375A
- Authority
- CN
- China
- Prior art keywords
- transmission line
- transmission
- corner regions
- wire wiring
- wiring structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/0228—Compensation of cross-talk by a mutually correlated lay-out of printed circuit traces, e.g. for compensation of cross-talk in mounted connectors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
- H05K1/0239—Signal transmission by AC coupling
Abstract
A kind of transmission wire wiring structure, is arranged on substrate.The transmission wire wiring structure is differential signal transmission structure, including first transmission line, second transmission line and at least one corner portion.First transmission line is opposite parallel to second transmission line, and corner portion includes first transmission line corner regions and second transmission line corner regions, positioned at the bent area of first transmission line and second transmission line.First transmission line corner regions are located at the inside of the second transmission line corner regions, first transmission line corner regions set arcuate structure, adjusting the arcuate structure makes first transmission line and second transmission line isometric, cause two transmission line causes different in size because corner portion internal-and external diameter is different to overcome differential signal transmission, causing differential signal transmission, there are the defects of phase difference.
Description
Technical field
The present invention relates to printed circuit board (PCB) high-speed wire-layout design field more particularly to high velocity transmission line structure wires designs.
Background technology
As the continuous research and development of electronics technology are with progressing greatly, the working frequency of all kinds of chips is higher and higher, printed circuit board (PCB)
Circuit design is also constantly being pinpointed the problems with developing in solution towards the common objective of high-performance and the quality.In configuration
In, it is mostly connected up for high speed signal by the way of differential pair (Differential).Differential pair is ideally isometric for two
Ribbon feeder formed, but in fact, since printed circuit board space is limited, it will usually to differential pair to bend cabling
Mode is laid out, and is walked folding line and can be in turn resulted in because the different phase differences for generating cause different in size of internal-and external diameter and receive eye pattern
It is asymmetric.
At present, Length discrepancy in being connected up for differential pair and cause the common solution of phase difference to be：Using snake line
Mode adjusts the time delay of differential pair so that phase is consistent, but too many snake line can cause transmission line impedance amplitude of fluctuation
It is excessive, influence signal quality.
The content of the invention
In view of this, it is necessary to a kind of transmission wire wiring structure is provided, applied on printed circuit board (PCB), difference to be overcome to believe
There are the defects of phase difference, there is a need to provide a kind of method for overcoming transmission line phase difference for number transmission line.
The transmission wire wiring structure that an embodiment of the present invention provides, is arranged on substrate, and wherein the substrate is included at least
One ground plane layer, which is characterized in that the transmission wire wiring structure includes：
First transmission line；
Second transmission line, it is opposite parallel to the first transmission line；
At least one corner portion, positioned at the bent area of the first transmission line and the second transmission line, described at least one
A corner portion includes first transmission line corner regions and second transmission line corner regions, and the first transmission line corner regions are located at described the
The inside of two transmission line corner regions；Wherein,
The first transmission line corner regions are connected using arcuate structure, which dashes forward away from the first transmission line
Go out.
Preferably, the arcuate structure that the first transmission line corner regions use is single arcuate structure.
Preferably, adjusting the arcuate structure makes the first transmission line and the second transmission line isometric.
Preferably, the corresponding ground plane layer of arcuate structure that the first transmission line corner regions are set hollows out processing.
Preferably, second transmission line corner regions angle is：0-180 degree.
Preferably, the second transmission line corner regions are smoothly connected using circular arc.
A kind of method for overcoming transmission line phase difference, includes the following steps：
The transmission wire wiring structure for including relatively parallel first transmission line and second transmission line is set to be somebody's turn to do on substrate
Substrate includes at least one ground plane；
At least one corner portion is set in the bent area of the first transmission line and the second transmission line, the corner portion
Including first transmission line corner regions and second transmission line corner regions, the first transmission line corner regions are located at the second transmission line
The inside of corner regions；
Arcuate structure is set to be connected to the first transmission line corner regions, which dashes forward away from the first transmission line
Go out.
Preferably, the arcuate structure that the first transmission line corner regions use is single arcuate structure.
Preferably, following steps are further included：Adjusting the arcuate structure makes first transmission line and the second transmission line etc.
It is long.
Preferably, following steps are further included：The corresponding ground level of arcuate structure that the first transmission line corner regions use
Layer hollows out processing.
Preferably, second transmission line corner regions angle is：0-180 degree.
Preferably, the second transmission line corner regions are smoothly connected using circular arc.
Compared with the prior art, what embodiment of the present invention provided overcomes the method for transmission line phase difference and its transmission line cloth
Cable architecture, by setting corner portion, corner portion in the first transmission line of transmission wire wiring structure and the bent area of second transmission line
First transmission line corner and second transmission line corner regions are provided with, first transmission line bent area is located at second transmission line corner regions
Inside by the way that single a arcuate structure is set to be connected to first transmission line corner regions, and adjusts the setting of first transmission line corner regions
Arcuate structure make first transmission line and second transmission line it is isometric with overcome differential signal transmission because corner portion internal-and external diameter not
Cause two transmission line causes different in size of differential signal transmission together, cause differential signal transmission lacking there are phase difference
It falls into.By hollowing out processing to the corresponding ground plane layer of the arcuate structure, to compensate impedance impedance-compensated to offset arc to carry out
Shape structure causes the impedance of differential signal transmission to be beated, and can also eliminate the inductive effect of differential signal transmission, carries
High RST quality.
Description of the drawings
Fig. 1 is the structure diagram of present invention transmission one embodiment of wire wiring structure.
Fig. 2 is the structure diagram of present invention transmission another embodiment of wire wiring structure.
Fig. 3 is the structure diagram of present invention transmission another embodiment of wire wiring structure.
Fig. 4 is the structure diagram of present invention transmission another embodiment of wire wiring structure.
Fig. 5 is the design sketch that existing differential pair uses snakelike cabling.
Fig. 6 is the signal effect figure of present invention transmission one embodiment of wire wiring structure.
Main element symbol description
Substrate 10
Differential pair structure 20
Ground plane 30
First transmission line 201
Second transmission line 202
Corner portion 203
First transmission line corner regions 2011
Second transmission line corner regions 2021
Arcuate structure 2012
Following specific embodiment will be further illustrated the present invention with reference to above-mentioned attached drawing.
Specific embodiment
It is shown in Figure 1, for the structure diagram of present invention transmission 20 1 embodiment of wire wiring structure.In this embodiment party
In formula, transmission wire wiring structure 20 is the wire structures of differential signal transmission, is arranged on substrate 10.Substrate 10 is printing electricity
Road plate, including at least one ground plane (not shown).Wire wiring structure 20 is transmitted to pass including first transmission line 201, second
Defeated line 202 and at least one corner portion 203.Only illustrate in the present embodiment and in diagram 1 by taking a corner portion 203 as an example,
But it is not limited thereto.First transmission line 201 is opposite parallel to second transmission line 202, and corner portion 203 is located at first transmission line
201 and the bent area of second transmission line 202.Corner portion 203 includes first transmission line corner regions 2011 and second transmission line corner
Area 2021, first transmission line corner regions 2011 are located at 2021 inside of second transmission line corner regions.
In the present embodiment, first transmission line corner regions 2011 are connected using single a arcuate structure 2012, the arc
Structure 2012 is protruded away from first transmission line 201.The arcuate structure 2012 for adjusting first transmission line corner regions 2011 may be such that the
One transmission line 201 and second transmission line 202 are isometric.It is possible thereby on the limited substrate in space, to differential signal transmission with
The mode of bending cabling is laid out, and by adjusting the arc structure of transmitted inwards line, makes differential signal transmission will not be because of corner
Portion's internal-and external diameter is different and causes two transmission line causes different in size of differential signal transmission, and causing transmission line, there are phase differences.
Meanwhile it is connected to transmitted inwards line corner regions using single a arcuate structure and can prevent differential signal transmission impedance amplitude mistake
Greatly.
In the present embodiment, the scope of the angle setting of second transmission line corner regions 2021 is：0-180 degree, Ke Yigen
Factually cabling trend in the wiring process of border determines.In another embodiment of the present invention, second transmission line corner regions
2021 are smoothly connected using circular arc.
Shown in Figure 2, Fig. 2 systems show the structure diagram of wire structures 20 according to an embodiment of the present invention.Such as
Shown in Fig. 2, substrate 10 includes at least one ground plane 30, is only said in embodiments of the present invention by taking a ground ground plane as an example
It is bright.It should be noted that usually for printed circuit board (PCB) when walking high speed signal in the case where cost is permitted, increase is grounded the number of plies
Amount, by signal plane layer close to ground plane to reduce EMI radiation.The arcuate structure 2012 that first transmission line corner regions 2011 are set
Corresponding ground plane 30 hollows out processing, carries out impedance-compensated to offset the resistance that arcuate structure 2012 causes differential signal transmission
Anti- bounce, and the inductive effect of differential signal transmission can also be eliminated, improve signal quality.In embodiment party shown in Fig. 2
In formula, area of knockout is circle, but is not limited thereto.In other embodiment of the present invention, area of knockout can be pros
Shape (as shown in Figure 3) or hexagon (as shown in Figure 4) etc., those skilled in the art can be according to the needs of actual design and to these
What the ground plane corresponding to arcuate structure 2012 did arbitrary shape and size empties processing.
Please also refer to shown in Fig. 5 and Fig. 6, Fig. 5 hollows out using snakelike cabling and not ground connection for prior art transmission line
The design sketch of the output signal of layer, as shown in figure 5, signal is by being not provided with single arcuate structure and without carrying out single arc
When structure hollows out ground plane the transmission line of processing, export the eye pattern of signal eye it is high there was only 663mV, output signal quality compared with
Difference.Fig. 6 is the design sketch of the output signal of an embodiment of the present invention.When first transmission line corner regions 2011 are arranged to arc knot
Structure 2012, adjusting the arcuate structure 2012 makes first transmission line 201 and second transmission line 202 isometric, and in the arcuate structure
2012 corresponding ground plane layers hollow out processing.When signal is by transmission wire wiring structure 20, the eye for exporting the eye pattern of signal is high
It improves to 754mV, signal quality increases substantially.
A kind of method for overcoming transmission line phase difference, applied on substrate 10, wherein substrate 10 is printed circuit board (PCB).Substrate
10 include at least one ground plane 30, and this method comprises the following steps：
Step S21 sets the transmission line wiring for including relatively parallel first transmission line 201 and second transmission line 202
Structure 20 is on substrate 10, and wherein the transmission wire wiring structure 20 is differential signal transmission structure；
Step S22 sets minimum of one corner portion 203 in the bending of the first transmission line 201 and second transmission line 202
Area, corner portion 203 include first transmission line corner 2011 and second transmission line corner regions 2021,201 bent area of first transmission line
Positioned at the inside of 202 corner regions of second transmission line.
Step S23 sets single a arcuate structure 2012 to be connected to first transmission line corner regions 2011, the arcuate structure
2012 protrude away from first transmission line 201.In the present embodiment, the angle of second transmission line corner regions 1021 sets scope
For：0-180 degree.In another embodiment of the present invention, the use circular arc of second transmission line corner regions 1021 is smoothly connected.
Step S24, adjusting the arcuate structure 2012 that first transmission line corner regions 2011 are set makes first transmission line 201 and the
Two transmission lines 202 are isometric.
Step S25, the 2012 corresponding ground plane 30 of arcuate structure that first transmission line corner regions 2011 are set hollow out place
Reason.In the present embodiment, only illustrate by taking a ground plane 30 as an example, but not limited to this.
Compared with the prior art, what embodiment of the present invention provided overcomes the method for transmission line phase difference and its transmission line cloth
Cable architecture, by setting corner portion in the first transmission line 201 of transmission wire wiring structure 20 and the bent area of second transmission line 202
203, corner portion 203 is provided with first transmission line corner 2011 and second transmission line corner regions 2021, and first transmission line 201 is bent
Area is located at the inside of 202 corner regions of second transmission line, is turned by the way that single a arcuate structure 2012 is set to be connected to first transmission line
Angular region 2011, and the arcuate structure 2012 for adjusting the setting of first transmission line corner regions 2011 passes first transmission line 201 and second
Defeated line 202 is isometric to cause two of differential signal transmission to overcome differential signal transmission because corner portion internal-and external diameter is different
Transmission line cause different in size, causing differential signal transmission, there are the defects of phase difference.By being corresponded to the arcuate structure 2012
Ground plane layer hollow out processing and compensate impedance to carry out impedance-compensated causing differential signal to offset arcuate structure 2012
The impedance bounce of transmission line, and the inductive effect of differential signal transmission can also be eliminated, improve signal quality.
Those skilled in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as within the spirit of the present invention, embodiment of above is made
Appropriate change and variation all fall within the scope of protection of present invention.
Claims (12)
1. a kind of transmission wire wiring structure, is arranged on substrate, wherein the substrate includes at least one ground plane, and feature exists
In the transmission wire wiring structure includes：
First transmission line；
Second transmission line, it is opposite parallel to the first transmission line；
At least one corner portion, positioned at the bent area of the first transmission line and the second transmission line, described at least one turn
Corner includes first transmission line corner regions and second transmission line corner regions, and the first transmission line corner regions are located at described second and pass
The inside of defeated line corner regions；Wherein,
The first transmission line corner regions are connected using arcuate structure, which protrudes away from the first transmission line.
2. transmission wire wiring structure as described in claim 1, which is characterized in that the arc that the first transmission line corner regions use
Shape structure is single arcuate structure.
3. transmission wire wiring structure as described in claim 1, which is characterized in that the first transmission line and second transmission
Line is isometric.
4. transmission wire wiring structure as described in claim 1, which is characterized in that the arc that the first transmission line corner regions are set
The corresponding ground plane layer of shape structure hollows out processing.
5. transmission wire wiring structure as described in claim 1, which is characterized in that second transmission line corner regions angle is 0-
180 degree.
6. transmission wire wiring structure as described in claim 1, which is characterized in that the second transmission line corner regions use circular arc
It is smoothly connected.
7. a kind of method for overcoming transmission line phase difference, includes the following steps：
It sets and includes the transmission wire wiring structure of relatively parallel first transmission line and second transmission line on substrate, the substrate
Including at least one ground plane layer；
Setting at least one corner portion, the corner portion includes in the bent area of the first transmission line and the second transmission line
First transmission line corner regions and second transmission line corner regions, the first transmission line corner regions are located at the second transmission line corner
The inside in area；
Arcuate structure is set to be connected to the first transmission line corner regions, which protrudes away from the first transmission line.
8. the method as claimed in claim 7 for overcoming transmission line phase difference, which is characterized in that the first transmission line corner regions
The arcuate structure used is single arcuate structure.
9. the method as claimed in claim 7 for overcoming transmission line phase difference, which is characterized in that further include following steps：It adjusts
The arcuate structure makes first transmission line and the second transmission line isometric.
10. the method as claimed in claim 7 for overcoming transmission line phase difference, which is characterized in that further include following steps：
The corresponding ground plane layer of arcuate structure that the first transmission line corner regions use hollows out processing.
11. the method as claimed in claim 7 for overcoming transmission line phase difference, which is characterized in that the second transmission line corner
Area's angle is 0-180 degree.
12. the method as claimed in claim 7 for overcoming transmission line phase difference, which is characterized in that the second transmission line corner
Area is smoothly connected using circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085127.3A CN108124375A (en) | 2016-11-30 | 2016-11-30 | Overcome the method for transmission line phase difference and its transmission wire wiring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085127.3A CN108124375A (en) | 2016-11-30 | 2016-11-30 | Overcome the method for transmission line phase difference and its transmission wire wiring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108124375A true CN108124375A (en) | 2018-06-05 |
Family
ID=62227089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611085127.3A Pending CN108124375A (en) | 2016-11-30 | 2016-11-30 | Overcome the method for transmission line phase difference and its transmission wire wiring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108124375A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381663A (en) * | 2019-07-19 | 2019-10-25 | 合肥联宝信息技术有限公司 | A kind of printed board and the processing method of printed board, electronic equipment, storage medium |
| CN113420527A (en) * | 2021-08-25 | 2021-09-21 | 苏州浪潮智能科技有限公司 | Method, device and system for calculating winding difference line length and storage medium |
| US11723146B2 (en) | 2021-09-21 | 2023-08-08 | Kioxia Corporation | Printing wiring board and electronic device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007123740A (en) * | 2005-10-31 | 2007-05-17 | Sony Corp | Flexible board, optical transmission/reception module and optical transmission/reception device |
| CN102065639A (en) * | 2010-12-02 | 2011-05-18 | 上海交通大学 | Capacitor loading structure with integrity-improved system-level packaged signals |
| CN102170746A (en) * | 2010-02-26 | 2011-08-31 | 鸿富锦精密工业（深圳）有限公司 | Printed circuit board and differential wire wiring method |
| JP2012235013A (en) * | 2011-05-06 | 2012-11-29 | Nitto Denko Corp | Wiring circuit board and manufacturing method therefor |
| CN205408280U (en) * | 2016-03-14 | 2016-07-27 | 索尔思光电（成都）有限公司 | Copper line weld dish impedance match PCB structure |
-
2016
- 2016-11-30 CN CN201611085127.3A patent/CN108124375A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007123740A (en) * | 2005-10-31 | 2007-05-17 | Sony Corp | Flexible board, optical transmission/reception module and optical transmission/reception device |
| CN102170746A (en) * | 2010-02-26 | 2011-08-31 | 鸿富锦精密工业（深圳）有限公司 | Printed circuit board and differential wire wiring method |
| CN102065639A (en) * | 2010-12-02 | 2011-05-18 | 上海交通大学 | Capacitor loading structure with integrity-improved system-level packaged signals |
| JP2012235013A (en) * | 2011-05-06 | 2012-11-29 | Nitto Denko Corp | Wiring circuit board and manufacturing method therefor |
| CN205408280U (en) * | 2016-03-14 | 2016-07-27 | 索尔思光电（成都）有限公司 | Copper line weld dish impedance match PCB structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381663A (en) * | 2019-07-19 | 2019-10-25 | 合肥联宝信息技术有限公司 | A kind of printed board and the processing method of printed board, electronic equipment, storage medium |
| CN113420527A (en) * | 2021-08-25 | 2021-09-21 | 苏州浪潮智能科技有限公司 | Method, device and system for calculating winding difference line length and storage medium |
| CN113420527B (en) * | 2021-08-25 | 2021-11-09 | 苏州浪潮智能科技有限公司 | Method, device and system for calculating winding difference line length and storage medium |
| US11842139B1 (en) | 2021-08-25 | 2023-12-12 | Inspur Suzhou Intelligent Technology Co., Ltd. | Method and apparatus for calculating equal length of winding differential lines, and device and storage medium |
| US11723146B2 (en) | 2021-09-21 | 2023-08-08 | Kioxia Corporation | Printing wiring board and electronic device |
| TWI830149B (en) * | 2021-09-21 | 2024-01-21 | 日商鎧俠股份有限公司 | Printed wiring boards and electronic equipment |
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| PB01 | Publication | ||
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Application publication date: 20180605 |