CN101142756B - Connection board and communications jack with compensation for differential to differential and differential to common mode crosstalk - Google Patents
Connection board and communications jack with compensation for differential to differential and differential to common mode crosstalk Download PDFInfo
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- CN101142756B CN101142756B CN200580047797XA CN200580047797A CN101142756B CN 101142756 B CN101142756 B CN 101142756B CN 200580047797X A CN200580047797X A CN 200580047797XA CN 200580047797 A CN200580047797 A CN 200580047797A CN 101142756 B CN101142756 B CN 101142756B
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Abstract
A communications jack (10) includes: a jack frame (12) having a plug aperture (14) ; a plurality of contact wires (22a-28b), the contact wires having free ends that extend into the plug aperture, the free ends of the contact wires being arranged serially in side-by-side relationship; a plurality of electrical terminals (42a-48b), the terminals being arranged in pairs, each pair defining a communication channel; a dielectric mounting substrate (20), the mounting substrate including a plurality of mounting locations (32a-38b) for contact wires and a plurality of mounting locations (52a-58b) for the electrical terminals; and a plurality of conductors (62a-68b) mounted on the substrate, each of the conductors extending, defining a path, and establishing electrical connection between a contact wire mounting location and an electrical terminal mounting location. First (62a) and second (62b) of the conductors that are connected to one of the pairs of terminals (52a, 52b) each include a coupling section (70, 72), the coupling sections being immediately adjacent to each other and having identical instantaneous current direction such that the sections couple and cause a localized increase in inductance.
Description
Related application
" the Communication Plug with BalancedWiring to Minimize Differential to Common Mode Crosstalk " by name that submitted on December 7th, 2004 and lawyer's case of transferring the possession of number are the U.S. Provisional Patent Application No 60/633,733 of No 9457-26PR; " the Improving Return Loss in Connector by ConductorSelf-coupling " by name that submitted on December 16th, 2004 and lawyer's case of transferring the possession of number are the U.S. Provisional Patent Application 60/636,590 of No 9457-29PR; " the Crossover for SimultaneouslyCompensating Differential to Differential or Differential to Common ModeCrosstalk " by name that submitted on December 16th, 2004 and lawyer's case of transferring the possession of number are the U.S. Provisional Patent Application 60/636,595 of No 9457-27PR; With " the Controlled Mode ConversionPlug for Reduced Alien Crosstalk " by name that submitted on January 28th, 2005 and lawyer's case of transferring the possession of number be the U.S. Provisional Patent Application XXX of No 9457-30PR, they be disclosed in this through with reference to intactly merging.
Technical field
Relate generally to communications connector of the present invention, and more specifically relate in communications connector compensation to near-end cross (NEXT) and far-end cross talk (FEXT).
Background technology
In electrical communication system; Sometimes advantageously information signal (for example video, audio frequency, data) is gone up transmission in couple of conductor (being called " lead to " or " differential to " in the back literary composition) but not on single lead, transmit, wherein the signal of transmission comprises the voltage difference between the lead and does not consider the existence of absolute voltage.Each internal lead of lead is easy to pick up electrical noise from the for example source of lightning, automobile spark plug and radio station etc.Because this noise like is identical to two internal leads of lead, differential wave is not typically disturbed.This is to the fundamental cause near layout with differential.
Yet what more be concerned about is near lead or the electrical noise of lead to picking up, near lead this or lead to possibly extend at identical general direction a segment distance and disturbed lead on can not remove with differential.This is called crosstalks.Especially, in relating to the communication system of Net-connected computer, form passage by cascade plug, socket and cut cable.In such passage; Modular plug often with the modular jack coupling, and the propinquity of the electric lead (conductor) in socket and/or the plug and wiring and contact structures also possibly produce the capacitive that generated near-end cross (NEXT) (promptly corresponding to the source that is in same position crosstalking in the measurement of input position place) and far-end cross talk (FEXT) (promptly corresponding to the source that is in input position crosstalking in the measurement of outgoing position place) and inductive coupled.Crosstalking like this maybe be from the lead of the location of the next-door neighbour in the short distance.In situation more than all, in electric conductor, have undesirable signal, it maybe the interfere information signal.When identical noise signal is added internal each lead of lead to, then the voltage difference between lead will remain approximately identical and not respond to differential crosstalk, and raise with respect to the average voltage with reference to ground on two leads simultaneously and responded to common mode crosstalk.On the other hand, when noise signal opposite but that equate is added internal each lead of lead to, the voltage difference between the lead will raise and respond to differential crosstalk, and not raise with respect to the average voltage with reference to ground on two leads and do not respond to common mode crosstalk.
Authorize people's such as Adriaenssens Patent No 5; 997; 358 (being called " patent 358 " in the back literary composition) were described the two-step scheme that is used to the differential differential NEXT of arriving of plug-socket combined compensation, and (complete content of patent ' 358 merges through reference at this; Same with reference to merging Patent No 5,915,989; No 6,042, and 427; No 6,050, and 843; With No 6,270,381).The connector of describing in ' 358 in patent can through usually in socket one-level or more multistage place add make or artificial crosstalking reduce in the modular plug electric lead between inside NEXT (original crosstalk), therefore eliminate or reduced always crosstalking of plug-socket combination.Crosstalking of making is called compensate for crosstalk at this.Therefore this idea often can provide two-stage NEXT compensation through one the differential right path in the connector is implemented with respect to another twice intersection in differential right path in the connector.This scheme can more effectively reduce NEXT than the scheme of wherein adding compensation at single level place, particularly when second level compensation and subsequently grade compensation comprise time delay, time delay consider offend crosstalk and compensate for crosstalk between phase difference select.This type of layout can comprise capacitive and/or the inductive element of having introduced multipole crosstalk compensation, and typically use in jack lead frames with socket in the PWB structure in.These structures can allow connector to satisfy in ANSI/EIA/TIA 568 " type 6 " performance standard of regulation, this standard be about the plug and socket of coupling for critical piece standard until the 250MHz transmission frequency.
External NEXT is the differential crosstalk that occurs between the communication port.Obvious, the physical separation between socket is with helpful and/or can use the solution of typically crosstalking.Yet problem condition possibly be to crosstalk in " to 3 " of " to 3 " and another passage of a passage, though to 3 plug and socket leads in each passage each other away from and unique coupling occur between the cable of wiring.For reducing the external NEXT of this form, can use the shielding harness of the twisted-pair feeder structure that comprises Shielded Twisted Pair or band paper tinsel.Yet, comprise that shielding part possibly increase the cost of system.Another solution of reducing or minimizing external NEXT has been utilized apart and/or the apart socket passage between of cable in passage.Yet this typically is unpractiaca, because the boundling of cable and patch cord retrains and be easy to conductor arrangement but convention because of " space ".
Although in improving matching connector (being plug-socket) performance, realized progress rapidly recently; And particularly reduced (the 500MHz for example of crosstalking under the frequency that raises; See " NEXT High Frequency Improvement by UsingFrequency Dependent Effective Capacitance " the U.S. Patent application No10/845 by name that submitted on March 4th, 2004; 104; It is disclosed in this through with reference to merging) in realized progress rapidly, but use the passage of the connector of the teaching that relies on these teachings or patent ' 358 (for example, still to have the external NEXT of unacceptable height under 500MHz) in very high frequency.Therefore, the connector that provides the external NEXT that under very high frequency, has reduction of hope and so and passage of use.
Summary of the invention
The present invention can provide and under high frequency, have the communications connector of improved differential mode to common mode and differential mode to differential mode NEXT and FEXT performance especially.As first aspect, embodiments of the invention are to the terminal block that is used for communications connector, and terminal block comprises: the dielectric mounted substrate; With a plurality of contact wires that are installed in the mounted substrate, each of contact wire comprises fixed end part and the free end portion that is installed in the mounted substrate, and each of free end portion has identical substantially profile and substantially with the side by side relationship lateral alignment.First pair of contact wire clamp gone in the middle of second pair of contact wire.Second pair of contact wire comprises intersection, and the location of intersection is chosen as provides differential mode to arrive common mode crosstalk compensation.
As second aspect, embodiments of the invention are to the terminal block that is used for communications connector, and terminal block comprises: the dielectric mounted substrate; Be installed in the first couple in the mounted substrate, second pair, the 3rd pair and the 4th pair of contact wire; Each of contact wire comprises fixed end part and the free end portion that is installed in the mounted substrate, and each of free end portion has identical substantially profile and substantially with the side by side relationship lateral alignment.The lead of first pair of contact wire is close to each other and sandwiches in the middle of the 3rd pair of contact wire, and second pair lead is close to each other, and the 4th pair lead is close to each other, and second pair and the 4th pair sandwiches middle with the 3rd pair.The 3rd pair of contact wire comprises intersection, and the location of intersection is chosen as provides differential mode to arrive common mode crosstalk compensation.
As the third aspect, embodiments of the invention are to communication jack, and communication jack comprises: the receptacle boxes with plug mouth; Be attached to the dielectric mounted substrate of receptacle boxes; With a plurality of conductors that engage with mounted substrate; Each of conductor comprises the fixed end part of installing with mounted substrate and the free end portion that extends in the plug mouth to electrically contact with matching plug, and each of free end portion has identical substantially profile and substantially with the side by side relationship lateral alignment.First pair of conductor sandwiches in the middle of second pair of conductor.Second pair of conductor comprises intersection, and the location of intersection is chosen as provides differential mode to arrive common mode crosstalk compensation.
Description of drawings
Fig. 1 is the decomposition diagram of prior art communications connector.
Figure 1A is the enlarged perspective of the prior art communications connector of Fig. 1.
Figure 1B is the top view of the terminal block of Figure 1A.
Fig. 2 is the end view of contact wire of the socket of Fig. 1.
Fig. 3 is the schematic top view of contact wire of the prior art socket of Fig. 1.
Fig. 4 is the schematic top view according to the contact wire of communications connector embodiment of the present invention.
Fig. 5 is according to the illustrated enlarged perspective of the contact wire of structure according to an embodiment of the invention among Fig. 4.
Fig. 6 is the enlarged side view of the contact wire of the Fig. 5 in the terminal block.
Fig. 7 is the perspective view of communications connector that comprises the contact wire of Fig. 5 according to an embodiment of the invention.
Fig. 7 A is the enlarged perspective of the communications connector of Fig. 7.
Fig. 8 A to Fig. 8 D be for to 3 and to 2 described forward with reverse differential to common mode NEXT and FEXT curve chart as the function of frequency.
Fig. 9 A to Fig. 9 D be for to 3 and to 4 described forward with reverse differential to common mode NEXT and FEXT curve chart as the function of frequency.
Embodiment
To the present invention more specifically be described with reference to the accompanying drawing of following below.The present invention is not intended to and is limited to illustrated embodiment; But these embodiment are intended to fully and intactly disclose the present invention for those skilled in the art.In institute's drawings attached, similarly numeral refers to similar elements.For the purpose of clear, the thickness of some parts and size are by exaggerative.
Only if additionally limit, the same meaning of the those skilled in the art institute common sense that has the field that is subordinate to by the present invention at all technical terms and the scientific terminology of this use.The term that is used herein to specification of the present invention is merely the purpose of describing certain embodiments and is not intended to restriction the present invention.Such as in specification of the present invention and accompanying Claim book use, singulative " a ", " an " and " the " are intended to also comprise plural form, only if clearly point out in addition in the context.The term of this use " and/or " comprise one or more any combinations and all combinations of the relevant project of listing.
This invention is to communications connector, and its main example is a communications connector.Such as this use, term " forward ", " onwards " and " preceding " and derivative thereof refer to the direction that vector limited of being extended the plug opening of mind-set socket from socket.On the contrary, term " backward ", " backward " and derivative thereof refer to forwards to directly relative direction; Backward directions are limiting from the vector of plug opening to the remainder extension of socket.Term " side direction ", " laterally " and derivative thereof refer to usually with the socket contact wire plane parallel that terminal block limited mounted thereto and from the direction of opening being extended on the plane of cutting plug at the center.Term " inboard ", " inwardly ", " inwards " and derivative thereof refer to the direction with the lateral contrary, promptly with plane parallel that terminal block limited and from the periphery of socket to the aforesaid direction that the section is extended.When using, term " attachment ", " connection ", " interconnection ", " contact ", " installation " etc. can mean direct or indirect attachment or the contact between the element, only if additionally statement.When using, term " coupling ", " induction " etc. can mean between the element or the interaction of the direct or indirect non-conduction between the different piece of components identical, only if additionally state.
With reference now to accompanying drawing,, the socket that is designated as 10 prior art widely illustrates in Fig. 1 and Figure 1A.Socket 10 comprises receptacle boxes 12, lid 16 and the terminal shell 18 with the plug mouth 14 that is used to receive matching plug.These parts form routinely and do not need in this detailed description; The Patent No 6,350,158 of authorizing people such as Arnett is seen in further description for these parts and their interconnection modes, and it is disclosed in this and intactly merges through reference.One of ordinary skill in the art will appreciate that other structures that also can use receptacle boxes, lid and terminal shell in the present invention.Typically be configured in the Patent No 5,975,919 of authorizing people such as Arnett and No 5,947,772 and authorize in people's such as Hashim the Patent No 6,454,541 and illustrate, each in them be disclosed in this through with reference to intactly merging.
In addition, still with reference to figure 1 and also with reference to figure 2, socket 10 further comprises the terminal block 20 that is formed by conventional material.Terminal block 20 can be that lamina maybe can have a plurality of layers.Terminal block 20 can such as diagram be that what to put down maybe can be non-flat substantially.
Refer again to Fig. 1 and Figure 1A, contact wire 22a, 22b, 24a, 24b, 26a, 26b, 28a, 28b are attached to terminal block 20.As in above referenced Patent No 6; 350; Describe in 158; Contact wire 22a, 22b, 24a, 24b, 26a, 26b, 28a, 28b have free end, and profile is identical and substantially with concerning lateral alignment and extend in the plug mouth 14 side by side substantially for it, to form and the electrically contacting of the terminal plate of matching plug.The free end of contact wire 22a, 22b, 24a, 24b, 26a, 26b, 28a, 28b extends in the independent slit 29a to 29h in the lead edge portion of terminal block 20. Contact wire 22a, 22b, 24a, 24b, 26a, 26b, 28a, 28b by TIA 568B be defined as to arranging; Make lead 22a, 22b (to 1) contiguous each other and at the center of lead sequence; Lead 24a, 24b (to 2) are close to and occupy the most left two positions (from the vantage point of Figure 1B) of sequence each other; Lead 28a, 28b (to 4) are contiguous each other and occupy the rightest two positions (from the vantage point of Figure 1B) of sequence, and lead 26a, 26b (to 3) are positioned at respectively to 1 with between 4 and to 1 with between 2. Lead 22a, 22b, 24a, 24b, 26a, 26b, 28a, 28b are installed on the terminal block 20 through being inserted into corresponding mouthful of 32a, 32b, 34a, 34b, 36a, 36b, 38a, 38b; Corresponding mouthful 32a, 32b, 34a, 34b, 36a, 36b, 38a, 38b are arranged as known " double diagonal line " form of persons skilled in the art in illustrated embodiment; As in the Patent No of authorizing people such as Coodrich 6; 196; Describe in 880, it is disclosed in this and intactly merges through reference.One of ordinary skill in the art will appreciate that contact wire or other contacts that to use other structures.As an example, can use as described in people's such as the aforementioned Arnett of authorizing Patent No 5,975,919 and the structure contact wire.
As visible in Figure 1A and Fig. 3; Comprise contiguous contact wire to 1, to 2 and to 4 each comprise " intersection " 22c, 24c, 28c accordingly; Promptly wherein right contact wire intersects and the position of not realizing electrically contacting each other, typically makes the free end of a right contact wire vertically align substantially with the fixed end part of right another contact wire.Intersecting 22c, 24c, 28c roughly is positioned at the center (in the free end of contact wire and they between the installation site on the terminal block 20) of their contact wire.Comprised and having intersected to be provided at the compensate for crosstalk between the contact wire.In illustrated embodiment, intersect and realize through bending complementally local in the cross-wire, make a lead be bent upwards and another lead downwarping.Existence that intersects and structural enforcement thereof and it to the influence of crosstalking on some details in above-described patent ' 358 neutralization authorize in people's such as Denkmann the Patent No 5,186,647 and discuss, it is disclosed in this through with reference to merging.In the equipment of this prior art, the contact wire to 3 (lead 26a, 26b) does not comprise intersection.
Refer again to Fig. 1 and Figure 1A and Figure 1B, eight insulation displacement connectors (IDC) 42a, 42b, 44a, 44b, 46a, 46b, 48a, 48b are inserted in eight corresponding IDC mouth 52a, 52b, 54a, 54b, 56a, 56b, 58a, the 58b.IDC can be conventional configurations and not need to describe in detail at this; Typical IDC illustrates in the Patent No of authorizing people such as Arnett 5,975,919 and describes, and it is disclosed in this and intactly merges through reference.
With reference now to Figure 1A, Figure 1B and Fig. 2; Each of guidewire port 32a, 32b, 34a, 34b, 36a, 36b, 38a, 38b is electrically connected through conductors 62a, 62b, 64a, 64b, 66a, 66b, 68a, 68b with corresponding ID C mouth 52a, 52b, 54a, 54b, 56a, 56b, 58a, 58b, therefore each of contact wire 22a, 22b, 24a, 24b, 26a, 26b, 28a, 28b is interconnected to its corresponding IDC 42a, 42b, 44a, 44b, 46a, 46b, 48a, 48b.Conductor 62a, 62b, 64a, 64b, 66a, 66b, 68a, 68b are formed by the conductive material of routine and are deposited on the terminal block 20 through any depositional mode that known being suitable for applies conductor for persons skilled in the art.Some conductors are illustrated as (for example conductor 62a) on the individual layer that fully is present in terminal block 20, and other conductors (for example conductor 62b) can occupy on the multilayer of terminal block 20; Conductor can be advanced between layer for the known layer transferring structure of persons skilled in the art through comprising via hole (also being known as the through hole of plating) or other.
The Patent No 5,967,853 (its be disclosed in this through with reference to intactly merging) of authorizing Hashim has been described and has been used capacitive compensation to compensate the technology of differential mode to differential mode and differential mode to common mode crosstalk simultaneously.Yet,, typically perception and capacitive compensation need be provided for eliminating NEXT and FEXT effectively.The contact wire of the prior art that in Fig. 1 to Fig. 3, discloses is arranged and has been proved to be to providing inductive differential to the differential mode crosstalk compensation effectively and efficiently.Yet, confirmed that this is arranged in that inductive differential is provided in the socket 10 possibly be invalid in the common mode compensation and possibly produce the opposite effect.More specifically; Being arranged in of prior art to 1 with between 3, to 2 with between 3 and to 4 with to providing between 3 perceptual differential mode to the differential mode crosstalk compensation; But in exploitation of the present invention, have recognized that; Because to the big physical separation between 3 the conductor and they with respect to the asymmetric placement of (and similarly with respect to 4) to 2, maybe to the most debatable differential mode in matching plug of channel performance to the highest level of common mode crosstalk tend to when encourage to 3 the time differentially to 2 and to 4 on take place.When to 1, to 2 and to 4 in anyly tend to more not serious to common mode crosstalk to the differential mode that takes place when encouraging differentially; And therefore more unquestionable, because the separation between the conductor of these each right centerings is to 1/3rd of the separation between 3 the conductor.During the contact wire of the prior art that in Fig. 1 to Fig. 3, discloses is arranged, to 1, to 2 and to 4 each on intersection compensated perceptually when these centerings any to the more not serious differential mode that taken place when encouraging differentially to common mode crosstalk.Yet, because of not intersecting to having on 3, thus this arrange not only can not compensate perceptually when to 3 when encouraging differentially to 2 and to 4 on more serious common mode crosstalk, and possibly in fact make this problem worse.When socket for example receives all the more so during illustrative conventional plug in the Patent No of authorizing Lin 6,250,949.
Forward Fig. 4 now to, schematically illustrate among Fig. 4 and be designated 120 conductor arrangement according to an embodiment of the invention widely.Wiring arranges that 120 comprise eight contact wire 122a, 122b, 124a, 124b, 126a, 126b, 128a, 128b, and they have formed respectively 1, to 2, to 3 with to 4.Arrange the formation contrast with the contact wire of above-described prior art; In this embodiment; Contact wire 122a to 1,122b, contact wire 124a, 124b and 4 contact wire 128a, 128b do not comprised intersection to 2, and contact wire 126a, 126b comprise and intersect 126c.
Identical with the layout of prior art, the layout of this contact wire should to 1 and to 3 between, to 2 and to 3 between and to 4 and to 3 between the inductive differential that affords redress crosstalk to differential mode.In addition; Though this layout do not compensate not perceptually when to 1, to 2 and to 4 in any to differential mode more not serious when encouraging differentially to common mode crosstalk, can provide when to 3 when encouraging differentially to 2 and to 4 on the very problematic differential mode that taken place to the perception compensation of common mode crosstalk.Because can compensate the most problematic differential mode perceptually to common mode crosstalk, thus use the socket of this layout can satisfy higher performance standard, the frequency place that is particularly raising.
Typically being implemented among Fig. 5 to Fig. 7 A of this layout illustrates, and wherein shows socket 200 according to an embodiment of the invention.Socket 200 comprises receptacle boxes 212, lid 216 and the terminal shell 218 with plug mouth 214.Terminal block 220 comprises IDC 242a to 248b mounted thereto.Contact wire 222a to 228b is installed to terminal block 220.Contact wire 222a to 228b is engaged in the slit 229a to 229h at the front end place that is positioned at terminal block 220 at its free end, and orientates and be inserted into the sheet coupling of the plug of plug mouth 214 as.Except that will be the following intersection region 226c that describes in more detail, contact wire 222a to 228b usually according to identical profile, bends downward in their corresponding installing ports in terminal block 220 until them.Conductive trace on the terminal block 220 provides the signal path between contact wire 222a to 228b and IDC 242a to 248b.
With reference now to Fig. 5,, contact wire 226a, 226b have formed intersection 226c by means of supporting member 227a, 227b.Each of contact wire 226a, 226b comprises the transposition section 231 that laterally extends, and transposition section 231 is advanced in (in the situation of contact wire 226a) or below (in the situation of contact wire 226b) above contact wire 222a, the 222b.Each of contact wire 226a, 226b also comprises carrier finger 233, and it extends back from transposition section 231 and leans against on respective support 227a, the 227b top to put.Supporting member 227a, 227b are from roughly extending upward from terminal block 220 in free end and their the installation site 236a in terminal block 220, the position midway between the 236b of contact wire 226a, 226b.In certain embodiments; The carrier finger 233 of each contact wire 226a, 226b can be extended with identical substantially angle from its transposition section, makes supporting member 227a, 227b have the transposition section 231 of different height with each contact wire 226a of supporting, 226b at the correct height place.In other embodiments; Supporting member 227a, 227b can have identical height; And the carrier finger 231 of each transposition section can be extended from supporting member 227a, 227b with different angles, or supporting member can have different height and refer to and can extend with different angles.
This structure make contact wire 226a, 226b free end in response to plug in plug mouth 214 insertion and deflection and do not contact contact wire 222a, 222b.The advantage that illustrated embodiment has be make inductive differential to differential mode and differential mode to common mode compensation with minimum delay from corresponding crosstalk sources, this possibly be important for effective crosstalk compensation.Separation between the position of transposition section 231 and contact wire 222a, 222b intercepting matching plug is approximately 0.154 inch, but persons skilled in the art will be recognized the Separation of different size and also can be suitable for using with the present invention.Typically, the length of contact wire and is intersected 226c and is occurred in apart between about 0.3 to 0.4 inch of the free end of contact wire 226a, 226b and locate between about 0.648 to 0.828 inch.
Those skilled in the art will recognize that,, can use the contact wire of other numbers though illustrate and described eight contact wires at this.For example, can use 16 contact wires, and intersect the one or more intersections that sandwich a pair of contact wire therebetween and can be included in these contact wires.
In addition, one of ordinary skill in the art will appreciate that other socket structures also can be suitable for using with the present invention.For example, as stated, the receptacle boxes of other structures, lid and terminal shell also can use with the present invention.As another example; Contact wire can have different profile (typically substituting profile describes) in the Patent No of authorizing people such as Arnett 5,975,191; Or they can be substituted by the conducting path on the flexible circuit; And they can be installed in disobeys the position of place illustrated " double diagonal line " mount scheme (typically substituting diagram in the Patent No of authorizing people such as Goodrich 6,116,964) like this.As a further example, IDC can be installed in the different patterns on the terminal block, maybe can use the connector of some other types.Persons skilled in the art will recognize that also the embodiment of above-described terminal block can use in other environment that can have communications connector therein.For example, the socket in plugboard or a series of plugboard can be suitable for using with such terminal block.Other environment also can be possible.It will also be appreciated that contact wire can any on do not comprise any intersection, but the terminal block that contact wire is attached can have its signaling bearer conducting path according to the interleaved scheme wiring of in Fig. 4, usually describing.
In addition; Persons skilled in the art will further be recognized; Through utilizing metal leadframe structure to replace printed wiring board to form connectivity and the crosstalk compensation of socket conductors lead-in wire to realize requiring; Can implement above-describedly, make in common mode crosstalk conversion, to have similar beneficial effect at differential mode to 3 intersection.In such structure, contact wire and/or insulation displacement connector can integrally form integrated member with conductor.
Can provide at the structure of this diagram and description to have the improved characteristic of crosstalking, the particularly connector of the improved characteristic of crosstalking under the frequency that raises, and connector is communication plug particularly.For example, as illustrated in Fig. 5 to Fig. 7 A and can have with the connector of conventional plug coupling and to be lower than under the 100MHz-60dB the add up external NEXT of passage of power of power and under 500MHz, being lower than-49.5dB that adds up.
Persons skilled in the art also will be recognized; Be implemented in therein in the contact wire to 3 with between 2 with to 3 with possibly be not crucial situation to the differential mode crosstalk compensation the differential mode between 4; Contact wire interleaved scheme through revising Fig. 4 is to comprise to 2 with to additional as to the intersection on 3 of the intersection in 4; When to 2 or when being encouraged differentially, can provide to 3 or to the alternative compensation of the common mode crosstalk of induction on 1 to 4.
Further; Persons skilled in the art will be recognized; When second pair when being encouraged differentially the differential mode of induction on first pair to common mode crosstalk and when these right the first couples during by the excitation of common mode ground in the common mode of responding on these right the second couples to the reciprocity that exists between the difference mode signal; Make common mode crosstalk to differential mode and equal differential mode to the common mode crosstalk multiplication by constants, this constant is the ratio of differential mode impedance and common code impedance.Therefore; When because the present invention these right when being encouraged differentially at the differential mode between two pairs when common mode crosstalk improves, when these right other to by the excitation of common mode ground the time these two between common mode crosstalk to differential mode improvement accordingly take place.
The present invention describes in following non-limitative example at this in more detail.
Example
Use the communications connector modeling of illustrated structure among Fig. 1 that finite element electromagnetic field simulation software pair and conventional plug mate and find the solution.In a jack models that is designated " testing socket ", the contact wire cross conformation meets illustrated embodiments of the invention among Fig. 5 to Fig. 7 A substantially.In second jack models that is designated " prior art socket ", the contact wire cross conformation meets the socket of illustrated prior art among Fig. 1 to Fig. 3 substantially.Crosstalk to common mode NEXT and FEXT for differential mode then and find the solution jack models.
For problematic 3-2 combination and 3-4 are arrived common mode results shown in Fig. 8 A to Fig. 8 D and Fig. 9 A to Fig. 9 D to the differential mode of combination, wherein to 3 encouraged differentially right.For these each to combination; Provide for NEXT forward, the result of FEXT, inverted-F EXT and reverse NEXT forward; Wherein term " forward " represented wherein encourage the detection side that injects from the bitter end of plug to, and term " oppositely " represented wherein encourage from the detection side of the structure cut cable injection of socket to.It is thus clear that in all these situation, used the testing socket of 3 intersections showed that in 10 to 500MHz care frequency band the socket than prior art improves (promptly low decibel level) at differential mode significantly to common mode crosstalk.
The preamble illustration the present invention and be not interpreted as and limited the present invention.Though typical embodiment of the present invention describes, persons skilled in the art will readily appreciate that teaching and the advantage that in exemplary embodiments, can carry out many modifications and not depart from novelty of the present invention in fact.Therefore, all such modifications are intended to be included in the scope of the present invention that in claims, limits.The present invention is limited the claim of the equivalent that comprises claim as follows.
Claims (15)
1. terminal block that is used for communications connector, it comprises:
The dielectric mounted substrate;
Be installed in the first couple, second pair, the 3rd pair and the 4th pair of contact wire in the mounted substrate, each of contact wire comprises fixed end part and the free end portion that is installed in the mounted substrate;
Wherein the contact wire of first pair of contact wire is close to each other and sandwiches in the middle of the 3rd pair of contact wire, and second pair contact wire is close to each other, and the 4th pair contact wire is close to each other, and second pair and the 4th pair sandwiches middle with the 3rd pair;
Wherein the 3rd pair of contact wire comprises intersection, and the location of intersection is chosen as provides differential mode to arrive common mode crosstalk compensation; With
Wherein only the 3rd pair of contact wire comprises intersection.
2. terminal block according to claim 1; The free end portion of first wherein said the 3rd pair contact wire vertically aligns with the fixed end part of said the 3rd pair second contact wire, and the free end portion of second said the 3rd pair contact wire vertically aligns with the fixed end part of said the 3rd pair first contact wire.
3. terminal block according to claim 1, each of wherein said the 3rd pair contact wire comprise the transposition section that laterally extends, and wherein said the 3rd pair said intersection comprises this transposition section that laterally extends of said the 3rd pair contact wire.
4. terminal block according to claim 3 also comprises from each transposition section and extends the carrier finger of opening.
5. terminal block according to claim 4, wherein mounted substrate comprises from its upwardly extending a pair of supporting member, and wherein carrier finger by supporting members support.
6. terminal block according to claim 5, wherein one of supporting member height is lower than the height of another supporting member.
7. terminal block according to claim 3, wherein first of transposition section passes through above first pair of contact wire, and second of transposition section passes through below first pair of contact wire.
8. terminal block according to claim 1, wherein the 3rd pair of interior intersection of contact wire is the deflectionable part of contact wire.
9. terminal block according to claim 1, wherein first pair contact wire length is between 0.648 to 0.828 inch, and wherein the 3rd pair cross bearing is apart between at least one 0.3 to 0.4 inch of the free end of the 3rd pair contact wire.
10. terminal block according to claim 1, wherein differential mode is lower than-24dB at the 500MHz place to common mode crosstalk.
11. a communications connector, it comprises:
Socket casing with plug mouth;
Terminal block according to claim 1;
Wherein said intersection is positioned at the deflectionable part of said the 3rd pair contact wire, and the deflectionable part of said the 3rd pair contact wire is positioned at the plug mouth that is used for the matching plug coupling.
12. communications connector according to claim 11, wherein the 3rd pair contact wire only intersects once with first pair contact wire.
13. communications connector according to claim 11 also comprises the carrier finger of extending from least one deflectionable part of the contact wire of said the 3rd pair of contact wire.
14. communications connector according to claim 13; Wherein each of the 3rd pair of contact wire comprises the transposition section that laterally extends, and the transposition section of each of wherein said the 3rd pair contact wire intersects with said first pair of contact wire with the angle perpendicular to one main shaft of said first pair contact wire.
15. communications connector according to claim 11, wherein said intersection is being located apart between 0.3 to 0.4 inch of the free end of said the 3rd pair of contact wire.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63378304P | 2004-12-07 | 2004-12-07 | |
| US60/633,783 | 2004-12-07 | ||
| US63659904P | 2004-12-16 | 2004-12-16 | |
| US63659004P | 2004-12-16 | 2004-12-16 | |
| US60/636,590 | 2004-12-16 | ||
| US60/636,599 | 2004-12-16 | ||
| US64800205P | 2005-01-28 | 2005-01-28 | |
| US60/648,002 | 2005-01-28 | ||
| US11/088,044 | 2005-03-23 | ||
| US11/088,044 US7204722B2 (en) | 2004-12-07 | 2005-03-23 | Communications jack with compensation for differential to differential and differential to common mode crosstalk |
| PCT/US2005/037162 WO2006062578A1 (en) | 2004-12-07 | 2005-10-18 | Communications jack with compensation for differential to differential and differential to common mode crosstalk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101142756A CN101142756A (en) | 2008-03-12 |
| CN101142756B true CN101142756B (en) | 2012-08-15 |
Family
ID=39193619
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800478811A Active CN101248561B (en) | 2004-12-07 | 2005-10-18 | Communications connector for imparting crosstalk compensation between conductors and its mounting substrate |
| CN200580047797XA Active CN101142756B (en) | 2004-12-07 | 2005-10-18 | Connection board and communications jack with compensation for differential to differential and differential to common mode crosstalk |
| CN2005800477965A Active CN101142861B (en) | 2004-12-07 | 2005-11-03 | Communications connector for imparting crosstalk compensation between conductors |
| CN2005800478281A Expired - Fee Related CN101147330B (en) | 2004-12-07 | 2005-11-08 | Communications connector for imparting crosstalk compensation between conductors |
| CN2005800478277A Active CN101164392B (en) | 2004-12-07 | 2005-11-14 | Communications jack with printed wiring board having paired coupling conductors |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800478811A Active CN101248561B (en) | 2004-12-07 | 2005-10-18 | Communications connector for imparting crosstalk compensation between conductors and its mounting substrate |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800477965A Active CN101142861B (en) | 2004-12-07 | 2005-11-03 | Communications connector for imparting crosstalk compensation between conductors |
| CN2005800478281A Expired - Fee Related CN101147330B (en) | 2004-12-07 | 2005-11-08 | Communications connector for imparting crosstalk compensation between conductors |
| CN2005800478277A Active CN101164392B (en) | 2004-12-07 | 2005-11-14 | Communications jack with printed wiring board having paired coupling conductors |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN101248561B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7967645B2 (en) * | 2007-09-19 | 2011-06-28 | Leviton Manufacturing Co., Inc. | High speed data communications connector circuits, systems, and methods for reducing crosstalk in communications systems |
| US7601034B1 (en) * | 2008-05-07 | 2009-10-13 | Ortronics, Inc. | Modular insert and jack including moveable reactance section |
| US7682203B1 (en) * | 2008-11-04 | 2010-03-23 | Commscope, Inc. Of North Carolina | Communications jacks having contact wire configurations that provide crosstalk compensation |
| DE102012015581A1 (en) * | 2012-08-07 | 2014-02-13 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Connectors |
| US8961238B2 (en) * | 2012-09-07 | 2015-02-24 | Commscope, Inc. Of North Carolina | Communication jack with two jackwire contacts mounted on a finger of a flexible printed circuit board |
| US8894447B2 (en) * | 2013-03-14 | 2014-11-25 | Commscope, Inc. Of North Carolina | Communication plug having a plurality of coupled conductive paths |
| EP3111254A1 (en) * | 2014-02-28 | 2017-01-04 | Action Communication | Airborne platform for aircraft, comprising attitude correcting means, and associated tow hitch assembly |
| WO2015158726A1 (en) | 2014-04-16 | 2015-10-22 | Leoni Kabel Holding Gmbh | Device and method for transmitting differential data signals |
| US9318848B2 (en) * | 2014-08-01 | 2016-04-19 | Commscope, Inc. Of North Carolina | Communications connectors including low impedance transmission line segments that improve return loss and related methods |
| DE202015005042U1 (en) * | 2015-07-14 | 2015-09-09 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Connector assembly with coding |
| WO2018103158A1 (en) * | 2016-12-08 | 2018-06-14 | 华为技术有限公司 | Device having usb port |
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| CN1293454A (en) * | 1999-10-12 | 2001-05-02 | 摩托罗拉公司 | Integrated circuit possessing differentisl signal line balancing intorsion |
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| US5397862A (en) * | 1993-08-31 | 1995-03-14 | Motorola, Inc. | Horizontally twisted-pair planar conductor line structure |
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| US5997358A (en) * | 1997-09-02 | 1999-12-07 | Lucent Technologies Inc. | Electrical connector having time-delayed signal compensation |
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- 2005-10-18 CN CN2005800478811A patent/CN101248561B/en active Active
- 2005-10-18 CN CN200580047797XA patent/CN101142756B/en active Active
- 2005-11-03 CN CN2005800477965A patent/CN101142861B/en active Active
- 2005-11-08 CN CN2005800478281A patent/CN101147330B/en not_active Expired - Fee Related
- 2005-11-14 CN CN2005800478277A patent/CN101164392B/en active Active
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|---|---|---|---|---|
| US5328390A (en) * | 1992-09-01 | 1994-07-12 | Hubbell Incorporated | Modular telecommunication jack adapter |
| CN1293454A (en) * | 1999-10-12 | 2001-05-02 | 摩托罗拉公司 | Integrated circuit possessing differentisl signal line balancing intorsion |
| US6270381B1 (en) * | 2000-07-07 | 2001-08-07 | Avaya Technology Corp. | Crosstalk compensation for electrical connectors |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101147330A (en) | 2008-03-19 |
| CN101164392B (en) | 2012-01-25 |
| CN101147330B (en) | 2011-05-18 |
| CN101142861B (en) | 2011-01-26 |
| CN101142861A (en) | 2008-03-12 |
| CN101248561A (en) | 2008-08-20 |
| CN101142756A (en) | 2008-03-12 |
| CN101164392A (en) | 2008-04-16 |
| CN101248561B (en) | 2011-04-27 |
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