CN2686214Y - Transmission line capable of canceling and preventing crosstalk - Google Patents
Transmission line capable of canceling and preventing crosstalk Download PDFInfo
- Publication number
- CN2686214Y CN2686214Y CN 200420005314 CN200420005314U CN2686214Y CN 2686214 Y CN2686214 Y CN 2686214Y CN 200420005314 CN200420005314 CN 200420005314 CN 200420005314 U CN200420005314 U CN 200420005314U CN 2686214 Y CN2686214 Y CN 2686214Y
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- Prior art keywords
- connector
- talk
- layer
- transmission line
- eliminating
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- 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.)
- Expired - Lifetime
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The utility model relates to a transmission line which is capable of canceling and preventing crosstalk, in particular to the transmission line used for transmitting a high-frequency signal. The utility model comprises a cable line, a connector, and an adapter plate. The adapter plate is positioned between upper and lower rows of conductive terminals on the welded end of the connector; the upper part of the adapter plate is provided with a canceling layer whose upper surface and lower surface are respectively connected with a transmission layer; the surface of the transmission layer is provided with a transmission circuit and a guide hole; the transmission circuit is provided with an output end, and the other end which is far away from the output end is provided with an input end; the output end is welded and arranged on conductive terminals, and the cable line is provided with a plurality of conductive lines; the inner part of an insulation layer is coated with conductive lines, and one end of the conductive lines is welded and arranged on the input end of the transmission circuit. According to the structure, crosstalk generated by the high-frequency signal is led to the canceling layer to cancel by penetrating a conductive layer of the adapter plate during transmitting; upper and lower rows of conductive terminals on the welded end of the connector are obstructed by the adapter plate, which can effectively prevent upper and lower rows of conductive terminals on the welded end of the connector from generating the crosstalk because of mutual interference during signal transmission.
Description
Technical field
The utility model refers to the employed transmission line of transmitting high-frequency signal especially about a kind of transmission line of eliminating and preventing cross-talk.
Background technology
In recent years, the application of message and video signal as image and sound optical disk, digital multifunctional CD, high-res Digital Television, audio-visual phone and video conference etc., all enters into our life rapidly.Compare with technology in the past, the construction characteristic of these new systems has been to adopt totally digitilized mode to come the information of processed voice and image.In order to allow the user can enjoy better quality, along with the application demand of different field, it is more perfect that some relevant standards also constantly are formulated and revise.Factor word signal transmits (signal is not compressed) speed constantly to be accelerated, so that the interference of near-end crosstalk (NEAR END CROSSTALK) and far-end crosstalk (FAR END CROSSTALK) is also healed and is become serious in the processed finished products of high frequency transmission line, the influence of cross-talk can cause signal of video signal or audio signals to produce when playing and disturb or interruption, make and listen to or the quality when watching greatly reduces, and when cross-talk occurs in network communication, may cause important data therefore to run off.Though near-end crosstalk can be by the shape of the contact terminal that is worn in the connector, structure, and the lifting of a part of processing packaging technology and being improved, but at far-end crosstalk, particularly in the transmission of short-range high-frequency high-speed, on connector and wire rod, only can obtain improvement slightly, and the end properties instability (defect rate is higher) after having increased difficulty in the processing assembling and having made the processing assembling, and high frequency transmission line produces far-end crosstalk adding reflection (REFLECTION) phenomenon that is very easy to man-hour (particularly joint engages processing sections with wire rod) because of " characteristic impedance does not match " (IMPEDANCE MISMATCH) initiation, the even more serious playback quality of signal after transmission that have influence on.So in order to reduce the influence of cross-talk, relevant manufacturer develops the connector that a kind of anti-cross-talk then, see also shown in Figure 1, it is the outside drawing of commonly using the connector of anti-cross-talk, by knowing among the figure that the connector of finding out the anti-cross-talk of commonly using is to be provided with a connector A, and connector A is for having an inserted terminal A1, and in away from the opposite side of inserted terminal A1 for being provided with a welding ends A2, and welding ends A2 is for having extended complex conduction terminal A3, and conducting terminal A3 is up and down, and row is provided with, and bending in the opposite direction, to increase the distance of arranging up and down between the conducting terminal A3, the cross-talk phenomenon that takes place thereby the signal between the minimizing terminal disturbs.
But the connector of the above-mentioned anti-cross-talk of commonly using has many disappearances, as described in following:
The connector of the anti-cross-talk of (), commonly using is to utilize the distance that strengthens between the conducting terminal A3, to reduce the phase mutual interference that signal is caused when transmitting, thereby reduce the generation of cross-talk, but this kind way can only reduce the cross-talk of disturbing and can't effectively preventing to be taken place because of disturbing, and forms the bad disappearance of telecommunication and seriously has influence on the stability of signal.
The connector of the anti-cross-talk of (two), commonly using is to utilize the distance that strengthens between the conducting terminal A3, to reduce the phase mutual interference that signal is caused when transmitting, to reduce the generation of cross-talk, yet, because of the distance between the conducting terminal A3 strengthens, make the relative change of connector A big, can't meet present stage electronic product tended to compact, and product can't effectively widely be used.
Problem and disappearance that the connector of the above-mentioned anti-cross-talk of commonly using exists are the direction place that the related personnel who is engaged in the industry is badly in need of studying improvement.
Summary of the invention
The design people collects related data because above-mentioned problem of commonly using and disappearance, via assessing in many ways and consider, and to be engaged in the many years of experience of the industry accumulation, via continuous trial-production and modification, designs the transmission line that cross-talk could be eliminated and prevent to this kind.
Main purpose of the present utility model is, utilizes keyset to intercept the conducting terminal of row up and down of the welding ends of connector, with effectively prevent the connector welding ends arrange up and down conducting terminal when signal transmits the phase mutual interference and the cross-talk that takes place.
Secondary objective of the present utility model is, utilizes set eliminating layer of keyset and transport layer, and is provided with transmission circuit in the transport layer surface, and the cross-talk that high-frequency signal is produced when transmission sees through the conducting shell of keyset and imports the eliminating layer elimination.
A purpose more of the present utility model is, the circuit of required by electronic product can be set on the keyset, with the usage space of effective increase electronic product interior circuit board.
A kind of transmission line of eliminating and preventing cross-talk described in the utility model, be applied to the employed transmission line of transmitting high-frequency signal especially, it is characterized in that, this transmission line is provided with a keyset, and this keyset is provided with eliminating layer, and the upper and lower surface of this eliminating layer is connected with transport layer respectively, and be provided with transmission circuit in this transport layer surface, and transport layer and conductive layer are for using the circuit board with insulation effect made, and this transmission circuit is provided with output, and the other end away from output is provided with input, and output is located between the conducting terminal of row up and down of the set welding ends of connector one end for weldering, and input is located at an end of plural call wire set in the cable for weldering, the conducting shell that the cross-talk that high-frequency signal is produced when transmission can see through keyset imports the eliminating layer elimination, and utilize keyset to intercept the conducting terminal of row up and down of the welding ends of connector, with the welding ends that effectively prevents connector arrange up and down conducting terminal when signal transmits the phase mutual interference and the cross-talk that takes place.
Description of drawings
Below with a specific embodiment and be described with reference to the accompanying drawings the utility model.
Fig. 1 is the outside drawing of the anti-cross-talk connector commonly used.
Fig. 2 is the outside drawing of eliminating and preventing the transmission line of cross-talk described in the utility model.
Fig. 3 is the utility model embodiment exploded view.
Fig. 4 is the outside drawing of preferred embodiment of the present utility model.
The drawing reference numeral explanation:
1, connector; 11, housing; 12, conducting terminal; 111, inserted terminal; 13, shield shell; 112, welding ends;
2, keyset; 21, eliminating layer; 2211, output; 22, transport layer; 2212, input; 221, transmission circuit; 222, guide hole;
3, cable; 31, insulating barrier; 32, call wire.
Embodiment
Now describe the utility model in detail with a specific embodiment.See also Fig. 1, shown in Figure 2, be outside drawing of the present utility model and exploded view, find out by knowing among the figure, the utility model is provided with cable 3, connector 1 and keyset 2, wherein: this connector 1 is provided with housing 11, and an end of housing 11 is provided with an inserted terminal 111, and is provided with welding ends 112 in the other end away from inserted terminal 111, and be provided with complex conduction terminal 12 in the housing 11, and an end of conducting terminal 12 is to be exposed to welding ends 112 and the arrangement mode composition to arrange up and down.
This keyset 2 is for being provided with eliminating layer 21, and the upper and lower surface of eliminating layer 21 is for being connected with transport layer 22 respectively, and be provided with transmission circuit 221 and guide hole 222 in transport layer 22 surfaces, and this transmission circuit 221 is for being provided with output 2211, and is provided with input 2212 away from the other end of output 2211.This cable 3 is for being provided with plural call wire 32, and plural call wire 32 is for being coated in the insulating barrier 31.
The utility model is when assembling, be earlier keyset 2 to be placed between the conducting terminal of row up and down 12 of welding ends 112 of connector 1, and conducting terminal 12 weldering is located at the output 2211 of transmission circuit 221, again cable 3 set plural call wires 32 are welded in the input 2212 of transmission circuit 221, can finish structure of the present utility model.
On the mat, the conducting shell that the cross-talk that high-frequency signal can be produced when transmitting sees through keyset imports the eliminating layer elimination, and utilize keyset to intercept the conducting terminal of row up and down of the welding ends of connector, with the welding ends that effectively prevents connector arrange up and down conducting terminal when signal transmits the phase mutual interference and the cross-talk that takes place.
Moreover the set eliminating layer 21 of this keyset 2 and conducting shell 22 be for can make the circuit board of apparatus insulation effect make, and on the keyset 2 for the circuit of required by electronic product can be set, and then the usage space of increase electronic product interior circuit board.
See also shown in Figure 4, be the outside drawing of preferred embodiment of the present utility model, can know and find out that two ends of this cable 3 are for can distinctly switch through fishplate bar 2 and connector 1, and the welding ends 112 of connector 1 can further be coated with a metal shield shell 13, to prevent the interference of external electromagnetic ripple.
The crucial part that the structure-improved of high frequency transmission line described in the utility model improves the located by prior art defective is:
(1), the utility model is to utilize keyset 2 to intercept the conducting terminal of row up and down 12 of the welding ends 112 of connectors 1, with the welding ends 112 that effectively prevents connector 1 arrange up and down conducting terminal 12 when signal transmits the phase mutual interference and the cross-talk that takes place.
(2), the utility model is eliminating layer 21 and a transport layer 22 of utilizing keyset 2 set, and being provided with transmission circuit 221 and guide hole 222 in transport layer 22 surfaces, the cross-talk that high-frequency signal is produced when transmission sees through the transport layer 22 of keyset 2 and imports eliminating layer 21 and eliminate.
(3), on the set keyset 2 of the utility model for the circuit of required by electronic product can be set, with the usage space of effective increase electronic product interior circuit board.
Above embodiment only is preferred embodiment of the present utility model; be not to be used for limiting practical range of the present utility model; be that the equivalence that all contents that provides according to the utility model are done changes and modification; all should be protection range of the present utility model, protection range of the present utility model is as the criterion with the qualification of claims.
Claims (4)
1, a kind of transmission line of eliminating and preventing cross-talk, be applied to the employed transmission line of transmitting high-frequency signal especially, it is characterized in that, this transmission line is provided with a keyset, and this keyset is provided with eliminating layer, and the upper and lower surface of this eliminating layer is connected with transport layer respectively, and be provided with transmission circuit in this transport layer surface, and transport layer and conductive layer are for using the circuit board with insulation effect made, and this transmission circuit is provided with output, and the other end away from output is provided with input, and output is located between the conducting terminal of row up and down of the set welding ends of connector one end for weldering, and input is located at an end of plural call wire set in the cable for weldering, the conducting shell that the cross-talk that high-frequency signal is produced when transmission can see through keyset imports the eliminating layer elimination, and utilize keyset to intercept the conducting terminal of row up and down of the welding ends of connector, with the welding ends that effectively prevents connector arrange up and down conducting terminal when signal transmits the phase mutual interference and the cross-talk that takes place.
2, the transmission line of eliminating and preventing cross-talk as claimed in claim 1 is characterized in that, described transport layer is provided with one or more guide hole, makes cross-talk can import eliminating layer by guide hole and eliminates.
3, the transmission line of eliminating and preventing cross-talk as claimed in claim 1 is characterized in that, described keyset and connector are one or more, and is arranged at two ends of cable respectively.
4, the transmission line of eliminating and preventing cross-talk as claimed in claim 1 is characterized in that, the welding ends of described connector is coated with a metal shield shell, to prevent the interference of external electromagnetic ripple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420005314 CN2686214Y (en) | 2004-03-03 | 2004-03-03 | Transmission line capable of canceling and preventing crosstalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420005314 CN2686214Y (en) | 2004-03-03 | 2004-03-03 | Transmission line capable of canceling and preventing crosstalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2686214Y true CN2686214Y (en) | 2005-03-16 |
Family
ID=34667921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420005314 Expired - Lifetime CN2686214Y (en) | 2004-03-03 | 2004-03-03 | Transmission line capable of canceling and preventing crosstalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2686214Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943980A (en) * | 2013-01-18 | 2014-07-23 | 莫列斯公司 | Paddle card assembly for high speed applications |
-
2004
- 2004-03-03 CN CN 200420005314 patent/CN2686214Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943980A (en) * | 2013-01-18 | 2014-07-23 | 莫列斯公司 | Paddle card assembly for high speed applications |
| CN103943980B (en) * | 2013-01-18 | 2016-05-25 | 莫列斯公司 | Cable-assembly and circuit board assemblies |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140303 Granted publication date: 20050316 |