CN101635416B - Methods and apparatus for reducing crosstalk in electrical connectors - Google Patents
Methods and apparatus for reducing crosstalk in electrical connectors Download PDFInfo
- Publication number
- CN101635416B CN101635416B CN2009101461593A CN200910146159A CN101635416B CN 101635416 B CN101635416 B CN 101635416B CN 2009101461593 A CN2009101461593 A CN 2009101461593A CN 200910146159 A CN200910146159 A CN 200910146159A CN 101635416 B CN101635416 B CN 101635416B
- Authority
- CN
- China
- Prior art keywords
- receptacle connector
- capacitor
- plug
- coupling
- socket
- 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.)
- Active
Links
Images
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
A communication jack (200) having improved crosstalk compensation features is disclosed. In one embodiment, the jack is configured to receive a plug to form a communication connection, and comprises jack contacts, which may, for example consist of metal cantilever beams disposed in the jack, with each contact having at least a first surface and a second surface. Upon the plug being received by the jack, the plug contacts interface with the first surface of the jack contacts. The jack further includes a first capacitive coupling (230, 232) connected between two pairs of jack contacts to compensate for near end crosstalk, with the first capacitive coupling being connected to the pairs of jack contacts along the second surface adjacent to where the plug contacts interface with the jack contacts. A far end crosstalk compensation scheme is also set forth.
Description
Patent application of the present invention is that international application no is PCT/US2005/004705, international filing date is on February 11st, 2005, the application number that enters the China national stage is 200580004946.4, and name is called the dividing an application of application for a patent for invention of " method and apparatus of crosstalking that is used for reducing electric connection ".
Related application
The application require in the sequence number that on February 12nd, 2004 submitted to be 60/544050 U.S. Provisional Application, the sequence number submitted on March 31st, 2004 is 60/558019 U.S. Provisional Application, these applications all are incorporated into this by reference.
Technical field
The present invention relates to electric connection, relate in particular to the modular communication joint of crosstalking only that utilizes the compensation technique minimizing to produce by the combination of the plug and socket of adapter assembly.
Background technology
Along with the increase of computer in the workplace and network equipment quantity, the computer network that comprises Local Area Network and wide area network (WAN) becomes and becomes more and more popular.These computer networks utilize communication cable and electric connection being connected to transmission information between each assembly of network.Electric connection generally is configured to comprise the plug that can be connected to installation socket on the wall, or is configured to be integrated in panel or other telecommunication apparatus.Socket generally includes to hold and is used for the interval that contacts with the respective wire of the plug housing of parallel-contact array closely.RJ45 connector and receptacle terminal assembly are the known in the industry closely modular connection assemblies of contact that has at interval.
In recent years, the progress of computer networking technology had impelled data to pass through the corresponding increase of speed of Network Transmission.Traditional jointing has been used to transmit low-frequency data signal and has not had tangible cross-interference issue.Yet when these joints were used to carry high frequency rate data-signal, crosstalking of producing in the joint increased sharp.This is crosstalked mainly is because the interval in socket and/or the plug electric capacity between the parallel wire and inductance coupling high closely.
Various improvement have been done in the design of electric connection, to reduce crosstalking of taking place in the joint.The U.S. Patent No. 6305950 that transfers Panduit company jointly discloses an example.This joint uses specific conductor configurations, together with the multilayer board that comprises electric capacity, to realize the minimizing of cross talk effects.Yet,, can still be difficult to by the tuning effect that electric capacity obtains realize because high level is crosstalked and taken place in the plug at this joint under the extremely high frequency signal rate.Like this, still, require further improvement joint design to address these problems and to provide through improved crosstalk performance.
Description of drawings
Fig. 1 is the stereogram that embodies the adapter assembly of the principle of the invention;
Fig. 2 is the schematic diagram that reduces the compensation technique of crosstalking of Fig. 1 adapter assembly;
Fig. 3 is NEXT (near-end cross) the signal polar plot of Fig. 1 adapter assembly;
Fig. 4 is FEXT (far-end cross talk) the signal polar plot of Fig. 1 adapter assembly;
Fig. 5 is the stereogram that embodies the electrical socket of the principle of the invention;
Fig. 6 is the exploded view of Fig. 5 electrical socket;
Fig. 7 is the sectional view of Fig. 5 electrical socket of dissecing along Fig. 5 line A-A;
Fig. 8 is the plane graph of the printed circuit board (PCB) of Fig. 5 electrical socket;
Fig. 9 is the plane graph of another printed circuit board (PCB) of Fig. 5 electrical socket;
Figure 10 is the sectional view of Fig. 9 printed circuit board (PCB) of dissecing along Fig. 9 line A-A;
Figure 11 is the sectional view of Fig. 9 printed circuit board (PCB) of dissecing along Fig. 9 line B-B;
Figure 12 is the three-dimensional exploded view that embodies another electrical socket of the principle of the invention;
Figure 13 is the sectional view of Figure 12 electrical socket of dissecing along Figure 12 line B-B;
Figure 14 is the stereogram of an embodiment of flexible circuit capacitor;
Figure 15 is the upward view that is connected in the flexible circuit capacitor of receptacle connector, with the unshaped state representation;
Figure 16 is the vertical view of Figure 14 flexible circuit capacitor;
Figure 17 is the sectional view that dissects along Figure 16 line C-C;
Figure 18 is the sectional view that dissects along Figure 16 line D-D;
Figure 19 is the sectional view that dissects along Figure 16 line E-E;
Figure 20 is the stereogram of another embodiment of flexible circuit capacitor;
Figure 21 is the top view of the flexible circuit capacitor of Figure 20;
Figure 22 is the sectional view that dissects along Figure 21 line F-F;
Figure 23 is the sectional view that dissects along Figure 21 line G-G;
Figure 24 is the sectional view that dissects along Figure 21 line H-H;
Figure 25-27 is respectively the sectional view that dissects along Figure 21 line F-F, G-G and H-H, and they illustrate the flexible circuit capacitor that links to each other with contact;
Figure 28 is the stereogram of flexible circuit capacitor according to an embodiment of the invention;
Figure 29 is the vertical view of Figure 28 flexible circuit capacitor;
Figure 30 is the sectional view that dissects along Figure 29 line I-I;
Figure 31 is the sectional view that dissects along Figure 29 line J-J;
Figure 32 is the sectional view that dissects along Figure 29 line K-K;
Figure 33-the 35th illustrates the sectional view of the flexible capacitor of the welding rivet that is connected in receptacle connector;
Figure 36 is the stereogram of receptacle connector capacitor according to an embodiment of the invention;
Figure 37 is the stereogram with receptacle connector capacitor of crooked contact;
Figure 38 is the end view of Figure 36 receptacle connector capacitor;
Figure 39 is the sectional view that dissects along Figure 38 line L-L;
Figure 40 is the side partial sectional view of Figure 36 receptacle connector capacitor;
Figure 41 is the side partial sectional view that is installed on the contact capacitor of the receptacle connector of non-matched position in the push pedal;
Figure 42 is the side partial sectional view that is installed on the contact capacitor of the receptacle connector in Figure 41 push pedal, and wherein receptacle connector is in matched position;
Figure 43 is the stereogram of receptacle connector capacitor according to an embodiment of the invention;
Figure 44 is the vertical view of Figure 43 receptacle connector capacitor;
Figure 45 is the sectional view that dissects along Figure 44 line M-M;
Figure 46 is the sectional view that dissects along Figure 44 line N-N;
Figure 47 is the sectional view that dissects along Figure 44 line O-O;
Figure 48 is the vertical view that is connected in the receptacle connector capacitor of receptacle connector;
Figure 49 is the end view that is connected in the receptacle connector capacitor of receptacle connector;
Figure 50 is the rearview that is connected in the receptacle connector capacitor of receptacle connector;
Figure 51 is the side partial sectional view of receptacle connector capacitor that is connected in the receptacle connector of non-matched position in the push pedal;
Figure 52 is the side partial sectional view of receptacle connector capacitor that is connected in the receptacle connector of matched position in the push pedal;
Figure 53 a is the stereogram that the receptacle connector capacitor of the one embodiment of the invention that is installed on receptacle connector is shown;
Figure 53 b illustrates the stereogram of receptacle connector capacitor according to an embodiment of the invention;
Figure 54 is the detailed view of the details " P " of Figure 53 b;
Figure 55 is the side partial sectional view that the receptacle connector capacitor that is connected with the receptacle connector that is installed on push pedal is shown;
Figure 56 be according to the socket of the embodiment of Figure 53 a-and-rearview of capacitance component;
Figure 57 is the side partial sectional view of bonding zone that is connected in the receptacle connector capacitor of receptacle connector;
Figure 58 is the stereogram of flexible circuit according to an embodiment of the invention;
Figure 59 is the end view of flexible shunt having according to an embodiment of the invention;
Figure 60 is the end view of Figure 59 flexible shunt having;
Figure 61 is mounted in the end view of the flexible shunt having between receptacle connector and the printed circuit board (PCB);
Figure 62 is the sectional view that dissects along Figure 59 line Q-Q;
Figure 63 is the stereogram of flexible circuit capacitor according to an embodiment of the invention;
Figure 64 is the detailed view of the details " R " of Figure 63;
Figure 65 is the vertical view of Figure 63 flexible circuit capacitor;
Figure 66 is the end view of Figure 64 flexible circuit electric capacity;
Figure 67 is the stereogram of the flexible circuit capacitor that is connected in receptacle connector of Figure 63;
Figure 68 is the stereogram of the flexible circuit capacitor that is connected in receptacle connector of Figure 63;
Figure 69 is the end view of the flexible circuit capacitor that is connected in receptacle connector of Figure 63;
Figure 70 is the rearview of the flexible circuit capacitor that is connected in receptacle connector of Figure 63;
Figure 71 is the end-view that the overlapping of the capacitor board in the flexible circuit capacitor of Figure 63 is shown;
Figure 72 is the plane graph that the overlapping of the capacitor board in the flexible circuit capacitor of Figure 63 is shown;
Figure 73 is the stereogram of flexible print circuit according to an embodiment of the invention;
Figure 74 is the plane graph of Figure 73 flexible print circuit;
Figure 75 is the sectional view that dissects along Figure 74 line S-S;
Figure 76 is the sectional view that dissects along Figure 74 line T-T;
Figure 77-80 is respectively the plane graph that illustrates with first, second, third conductive path that links to each other with the 5th lead of 8-wire socket;
Figure 81-the 84th progressively illustrates the stereogram of the conductive path of Figure 73 flexible print circuit;
Figure 85 illustrates the stereogram of dielectric layer according to an embodiment of the invention;
Figure 86 is the plane graph that the conductive path in Figure 73 flexible print circuit is shown;
Figure 87 is the sectional view that dissects along Figure 86 line U-U;
Figure 88 is the sectional view that dissects along Figure 86 line V-V;
Figure 89 is the stereogram of flexible circuit capacitor according to an embodiment of the invention;
Figure 90 is the vertical view of Figure 89 flexible circuit capacitor;
Figure 91 is the sectional view that dissects along Figure 90 line W-W;
Figure 92 is the sectional view that dissects along Figure 90 line X-X;
Figure 93 is the sectional view that dissects along Figure 90 line Y-Y;
Figure 94 is the end view of Figure 89 flexible circuit capacitor, is connected in the rivet of receptacle connector shown in it;
Figure 95 is the end view of Figure 89 flexible circuit capacitor, is bonded in the bonding zone of receptacle connector shown in it;
Figure 96 is the stereogram of NEXT compensation condenser circuit according to an embodiment of the invention;
Figure 97 is the plane graph of conductive plate of the NEXT compensation condenser circuit of Figure 96;
Figure 98 is the end-view along Figure 97 sight line " Z ";
Figure 99-the 104th, the plane graph of the inside of the NEXT compensation condenser circuit of Figure 96, the shape of conductive plate shown in it;
Figure 105 is the plane graph of flexible print circuit according to an embodiment of the invention;
Figure 106 is the sectional view that dissects along Figure 105 line AA-AA;
Figure 107-the 109th illustrates the stereogram of pantostrat of the flexible print circuit of Figure 105;
Figure 110 is the side partial sectional view that the flexible print circuit of Figure 105 is shown, and wherein flexible print circuit is installed in the socket, and receptacle connector is in non-matched position;
Figure 111 is the side partial sectional view that the flexible print circuit of Figure 105 is shown, and wherein flexible print circuit is installed in the socket, and receptacle connector is in matched position;
Figure 112 is the plane graph of flexible print circuit according to another embodiment of the present invention;
Figure 113 is the stereogram of flexible PCB according to an embodiment of the invention;
Figure 114 is the end view of Figure 113 flexible PCB;
Figure 115 is the front view of Figure 113 flexible PCB;
Figure 116 is another front view of Figure 113 flexible PCB, wherein shows conductive path;
Figure 117 is the end-view towards Figure 116 line A/A; And
Figure 118-the 121st illustrates the front view of Figure 113 flexible PCB, and the capacitor board that is associated with the the 5th, the 3rd, the 6th and privates of 8-wire socket wherein is shown respectively.
Embodiment
Before elaborating all embodiment, be to be understood that the present invention is not limited to the structure of all parts described in the drawing and description and the application or the use of configuration detail.Be appreciated that illustrative embodiment of the present invention can be implemented in or be incorporated in other embodiment, variant and the change, and can in all sorts of ways practice or realization.In addition, except as otherwise noted, term used herein and expressing in order to describe exemplary embodiment of the present invention so that reader understanding and selecting, and be not intended to be construed as limiting.
Consult accompanying drawing now,, show a kind of communication joint assembly 100 more specifically referring to Fig. 1.This communication joint assembly 100 comprises that a kind of all principles are used for reducing the compensation technique of crosstalking only according to the present invention.As shown in Figure 1, communication joint assembly 100 comprises the plug 102 that can be connected in socket 104.Socket 104 comprises that housing 106 and bracket portion are to hold the printed circuit board (PCB) (not shown).The housing 106 of socket 104 holds interval parallel-contact array closely, in order to the respective contacts of contact plug 102.When by communication joint assembly 100 transmission of electric signals, in adapter assembly, crosstalk.
Because plug 102 and socket 104 interior intervals are parallel wire closely, crosstalking mainly produces in adapter assembly.In general, crosstalking is to being coupled to the measurement of the right non-desired signal of another circuit from a circuit.The some kinds of different measurings of crosstalking have been developed to solve the problem that in the communication joint assembly, takes place.Near-end cross (NEXT) is different circuit centerings with the measurement of crosstalking of advancing with the interference signal rightabout.NEXT can calculate according to following equation: the signal voltage that NEXT=produces because of (capacitive coupling (C)+inductance coupling high (L)).Far-end cross talk (FEXT) is the measurement of crosstalking that different circuit centerings are advanced with the direction identical with interference signal.FEXT can calculate according to following equation: the signal voltage that FEXT=produces because of (capacitive coupling (C)-inductance coupling high (L)).Further specifying in U.S. Patent No. 5997358 (" 358 patent ") of the principle of crosstalking in the butt joint is open, and this patent is incorporated herein by reference.
Between being connected to all signal current carrying conductors in the plug combination that plug and cable be connected to socket, cable has distributed inductance and capacitive coupling.In addition, away from above-mentioned lead and be electrically connected between any electric conducting material of above-mentioned lead and between electric conducting material and above-mentioned lead, have capacitive coupling.
The main coupling that how schematically illustrated preferred embodiment works among Fig. 2;
Plug mainly is distributed inductance and capacitive coupling.
The NEXT compensating basin is the far-end capacitive coupling.
Receptacle connector mainly is distributed inductance and capacitive coupling.
The NEXT crosstalk zone is the far-end capacitive coupling.
The NEXT crosstalk zone is that distributed inductance and capacitive coupling combine with far-end is capacity coupled.
Difference between the coupling of distributed couplings and far-end is because they are to the different effect of NEXT and FEXT but important.
NEXT is the reflected signal that returns the cable that is connected to plug from arbitrary coupled reflection.The phase angle of each element of NEXT depend on described cable be connected to/from the distance of described element.
FEXT is the signal that marches to the cable that is connected to socket from arbitrary coupling.Therefore, from all these signals of distributed couplings no matter its position homophase how all.Yet, from the phase angle of the signal of each far-end coupling depend on far-end be coupled to/from distance to current carrying conductor.
In described embodiment, lead 3,6 form a lead to and lead 4,5 to form another leads right.Be appreciated that can under the situation that does not deviate from spirit and scope of the invention, utilize different leads to the combination and other lead right.
The compensation scheme of adapter assembly 100 comprises NEXT compensation scheme and FEXT compensation scheme.The NEXT compensation scheme preferably includes FEXT compensating basin and NEXT crosstalk zone.The NEXT compensation scheme is reduced to zero effectively with the NEXT of plug and socket under selected empty frequency.Fig. 3 is the characterization vector according to the NEXT compensation scheme of realizing on to 3,6 and 4,5 at two leads of the present invention.
As shown in Figure 3, the plug 102 of adapter assembly 100 is incorporated into bad NEXT in the circuit of adapter assembly 100 to last.Plug 102 bad NEXT comprise from inductance coupling high inductive component (Lp) and from capacity coupled capacitive component (Cp).In order to reduce the bad NEXT of plug 102, the NEXT compensating basin of adapter assembly 100 compensate component of self-capacitance coupling (C2) in the future is incorporated into the circuit of joint to last.
The size (Cp+Lp) that the size of capacitive coupling (C2) is coupled more preferably greater than plug, but have opposite polarity.In the present embodiment, the size of capacitive coupling (C2) is near the twice of the bad coupling size of socket 104.The size of NEXT depends on the size at phase angle between plug coupling and the capacitive coupling (C2) as a result.This phase angle is big more, and the NEXT that is produced is big more.Therefore expectation minimizes this phase angle.Distance between the active centre of the active centre of the crosstalk couplings of this phase angle and plug and NEXT compensating basin is proportional.
As shown in Figure 3, the NEXT compensating basin is incorporated into capacitance compensation coupling (C2) in the circuit of socket to last bad NEXT with the minimizing plug.As further described below, can by capacitor is connected on the electric interface 110 of socket 104 contacts and plug 102 contacts or near but between the selected socket contact at its reverse side, and on socket 104, realize the NEXT compensating basin.As a result, the phase angle between the bad NEXT of plug and the compensate component introduced by the NEXT compensating basin is minimized.The capacitor of NEXT crosstalk zone be connected on the electric interface 110 of receptacle connector and header contact or near circuit paths 3 and 5 and 4 and 6 between.
Referring again to Fig. 3, the header contact of adapter assembly 100 is incorporated into coupling in the circuit of adapter assembly to last.The coupling of receptacle connector comprises inductive component (L1) and capacitive component (C1).
The polarity of NEXT crosstalk couplings (C3) is identical with the coupling of plug 102, but opposite with the polarity of capacitance compensation coupling (C2).The NEXT crosstalk zone is positioned at and becomes particular phase angle part on the empty frequency with the NEXT compensating basin.In preferred embodiment, because the phase angle between the capacitive coupling (C2) of plug coupling and NEXT compensating basin is relative less, the phase angle between the capacitive coupling (C3) of the capacitive coupling of NEXT compensating basin (C2) and NEXT crosstalk zone is relative less.In order to obtain phase angle less relatively between these capacitive coupling, the length of the receptacle connector part between NEXT compensating basin and NEXT crosstalk zone is less relatively.Preferred embodiment disclosed herein minimizes this length, and try one's best and separate them with air feasiblely, and still in the receptacle connector and the power that provides enough between the header contact of installing.
As shown in Figure 2, the NEXT crosstalk zone is incorporated into crosstalk couplings (C3) on the circuit paths of joint.The NEXT crosstalk zone preferably is positioned at and becomes particular phase angle part on the empty frequency with the cable that is connected to plug.As further described below, for example, between the input of the printed circuit board (PCB) (PCB) by capacitor being connected in adapter assembly 100, can in plug 104, realize the NEXT crosstalk zone.Should be appreciated that these electric capacity can be connected between socket 104 contacts at the same position place that NEXT compensating basin electric capacity is connected.Yet they can be connected between the different conductor with reversed polarity, and the conductor length from tie point to NEXT crosstalk zone capacitor should be greater than the conductor length from tie point to NEXT compensating basin capacitor.
NEXT crosstalk zone capacitor also can be connected in the plug contact interface and be connected to receptacle connector between the cable of socket.As shown in Figure 2, be connected in the capacitor between the circuit paths 3,4 and 5,6 of PCB input by its lead-in wire, introduce the crosstalk couplings (C3) of NEXT crosstalk zone.
As further described below, the FEXT crosstalk zone comprises crosstalk couplings (Cc) and compensation coupling (L
FCZAnd C
L).Compensation coupling (L
FCZAnd C
L) the active centre and the position of the active centre of the crosstalk couplings (Cc) of FEXT crosstalk zone preferably equidistant, and equate apart from the phase angle displacement at the electric interface of plug and socket.By the NEXT component that capacitive coupling produced in the FEXT crosstalk zone is by Cc and C
LProduce, and the net value of these couplings is for equaling Cc-C
LC
FCZInductance compensation in the FEXT crosstalk zone best equal and opposite in direction that is coupled, and with crosstalk components (C
FCZ) polarity is opposite.As a result, because the NEXT coupling equals C+L, two component (L
FCZ) and (C
FCZ) cancel each other out, and therefore the FEXT crosstalk zone has effect seldom to NEXT or does not act at all.
Referring to Fig. 4, to the standard plug, coupling C and L all produce and are shown crosstalking of negative (-).
In this jack design, receptacle connector has coupling C and the L that all generations are crosstalked and are negative (-).
As previously mentioned, NEXT equals the signal voltage because of coupling C+L generation, and FEXT equals the signal voltage because of coupling C-L generation.
Therefore, compare the effect of NEXT, the clean coupling effect that the plug and socket contact produces greatly reduces the effect of FEXT.Because the synergistic effect of various couplings is very successful in minimizing NEXT, identical coupling produces excessive FEXT.
Yet although the net effect of FEXT crosstalk zone is zero on NEXT, it has the advantageous effects that reduces FEXT.
In the example of the present embodiment of being set forth, the clean capacitive coupling of FEXT crosstalk zone is C
FCZAnd it is to crosstalk and have negative (-) number.
The inductance coupling high of FEXT crosstalk zone is L
FCZ, and it is compensation and has positive sign (+).
Influence coupling=C of NEXT
FCZ+ L
FCZ=-.944pF+.948pF*=0
Influence coupling=C of FEXT
FCZ-L
FCZ=-.944Pf-.948pF*=1.892pF
* pF is equivalent to L
FCZNH
The FEXT crosstalk zone has been derived as the size of the net effect of FEXT and has been approximately equal to the plug and socket contact compares the NEXT effect to the net effect of FEXT effect loss.
When producing FEXT, the phase angle displacement between each element equals the twice of the distance (in the phase angle displacement) from the signal path to the element.In this embodiment, these phase angles are less relatively, and therefore FEXT is less relatively.
The inductance coupling high partial L of FEXT crosstalk zone
FCZGoing up adjacent current carrying conductor by PCB produces.This is not a purpose of design, but these leads also produce the capacitive coupling of minimum except that inductance coupling high.Coupling is opposite and just be designated as in the polarity of these two kinds of couplings and the plug.This capacitive coupling is represented as C
L
The main capacitive coupling of FEXT crosstalk zone partly is by producing as the integration section of PCB and the capacitor board that is wired to the current carrying conductor in the above-mentioned inductance coupling high part.Connect lead and be connected in select location, and have designated length to guarantee from the displacement of the phase angle of plug contact interface to L
FCZAnd L
FCZEquate.
This capacitive coupling is expressed as Cc.
The size of Cc makes Cc-C
L=C
FCZ=be equal to the L that represents with pF
FCZSize.
Referring to Fig. 2, FEXT is the signal that marches to the cable that is connected to plug from arbitrary coupling.Therefore, no matter where be in, from all these signal homophases of distributed couplings.Yet, from the phase angle of the signal of each far-end coupling depend on far-end be coupled to/from the distance of current carrying conductor.
Referring again to Fig. 4, to compare with Fig. 3, the size of clean plug vector reduces.The size of clean receptacle connector vector reduces.It no longer is zero that three components of FEXT crosstalk zone add up to.They are effective now.
Referring to Fig. 4, all distributed couplings are homophase each other, and the coupling of all far-ends have the distributed couplings of lagging behind the phase angle.
Can be by realizing the FEXT crosstalk zone in the printed circuit board (PCB) at socket at the electric capacity that connects selected size between the circuit paths and producing mutual inductance between the adjacent circuit path.By circuit paths 3,5 being placed to each other apart from being a selected distance and circuit paths 4,6 is placed to each other apart from being a selected distance, and on printed circuit board (PCB), produce the inductance coupling high of FEXT crosstalk zone.As shown in Figure 8, capacitor is apart from input one selected distance of printed circuit board (PCB) and be connected between 3,6 and 4,5.
The NEXT that is produced by the FEXT crosstalk zone is self-cancelling as mentioned above.The coupling effect of FEXT is determined in the same manner by distributed couplings and far-end coupling, and no matter they along the position of signal path how.Therefore, the FEXT crosstalk zone can be positioned at from the NEXT compensating basin any suitable distance, and NEXT or FEXT performance are reduced.
Plug is the standard plug that must use, and it comprises inductance and capacitive coupling.
It is short and mechanically firm that contact is designed to length.The result is that they comprise inductance and capacitive cross-talk coupling.Can design longer and more complicated contact so that it has minimum inductance coupling high or inductance compensation coupling, but such somewhat complex design can't improve superior results of the present invention.
NEXT compensating basin design provides the minimum phase angle from the interface of plug contact to the active centre of NEXT compensating basin to change.Because the simple replacement design with inductance coupling high can increase the change at phase angle, the coupling of NEXT compensating basin is a plenary capacitance.The design of NEXT compensating basin allows minimum NEXT to realize, and it is one of most important element of the present invention.
The NEXT crosstalk zone only provides capacitive coupling.Because it provides required balance to minimize NEXT and not have adverse effect to FEXT, this is an optimal design.
More than She Ji result is:
It provides minimum NEXT; And
It provides relatively large FEXT.
This combination results a problem, yet the interpolation of FEXT crosstalk zone has solved this problem because it is invalid to NEXT, and very effective to FEXT.
The FEXT crosstalk zone also is one of most important element of the present invention, and combines with unique compensating basin, and is this in conjunction with producing very important technique effect.
The FEXT crosstalk zone design parameter that this paper provided causes less relatively FEXT; Yet, can consider to reduce FEXT by changing design parameter.
Example is by lead 3 being placed on the lead 5 but not adjacent with it and lead 6 placed on the lead 4 but not adjacent with it, thereby makes C
LIncrease.Along with C
LIncrease, Cc must increase.Since the phase angle of Cc from NEXT compensating basin C2 than Cc more near 180 °, therefore can reduce FEXT.
Another example is the length that increases lead 3,5 and 4,6, and these leads are separated to keep L
FCZIdentical.Because Cc must be positioned at the center of FEXT crosstalk zone, the distance from current path to far-end Cc must increase, and this will change its phase angle and make it the best.
In one embodiment, the component parameter of this compensation scheme of being realized by adapter assembly provides as follows:
Plug:
Cp+Lp=is equivalent to-1.472pF
Cp-Lp=is equivalent to-0.111pF
Wherein Lp is the inductance coupling high of standard plug, and Cp is the capacitive coupling of standard plug.
Receptacle connector:
Cp+Lp=is equivalent to-0.791pF
Cp-Lp=is equivalent to-0.071Pf
Wherein L1 is the inductance coupling high of receptacle connector, and C1 is the capacitive coupling of receptacle connector.
The NEXT compensating basin:
If ignore the influence of receptacle connector at the empty frequency of 500MHz place, then C2=2.872pF; Yet, by adjustment to receptacle connector:
C2＝3.574pF
Wherein C2 is the capacitive coupling of NEXT compensating basin.
The NEXT crosstalk zone:
C3＝-1.472pF
Wherein C3 is the capacitive coupling of NEXT crosstalk zone.
The FEXT crosstalk zone:
C
FCZ＝-0.944pF
-L
FCZ=+1.741nH=is equivalent to+.944pF
Cc＝-1.138pF
-C
L＝+0.194pF
Wherein, L
FCZIt is the inductance coupling high of FEXT crosstalk zone;
C
FCZIt is the clean capacitive coupling of FEXT crosstalk zone capacitor;
C
FCZ＝Cc-C
L
C
LIt is the capacitive coupling of NEXT crosstalk zone inductance coupling high lead; And
Cc is the capacitive coupling of FEXT crosstalk zone capacitor.
As skilled in the art to understand, the big I of the component value of compensation scheme changes near its initial determined value, is used for fine setting.Although present embodiment be applied to adapter assembly to 3,6 and 4,5, be appreciated that principle as herein described applicable to other of electric connection to combination, socket for example.
Referring now to Fig. 5-7,, shows the electric connection that realization compensation scheme according to the present invention is crosstalked with minimizing.Electric connection is preferably socket 200.Socket 200 minimizes the phase angle to be delayed, with by bad crosstalking is being incorporated into plug contact interface place with crosstalk compensation when being incorporated into socket by the matching plug (not shown) and is introduced into.
Shown in Fig. 5-7, socket 200 comprises that the qualification socket holds the housing 202 of opening 204, PCB and wires carry push pedal 206 and lead protective cover 208.In described embodiment, socket 200 be according to lead to industry standard (be that lead 4 and 5 constitutes 1, lead 3 and 6 constitutes 2, lead 1 and 2 constitutes 3 and lead 7 and 8 constitute 4) 8 contact types (promptly 4 twisted wire to) joint arrangement.Socket also can expect it is the suitable socket or the joint of other type.
The contact carriage 206 of socket 200 comprises printed circuit board (PCB) (PCB) 201 and a plurality of contact 220.Contact 220 respectively has first end 222, and it is fixedly connected to the printed circuit board (PCB) 210 and second free end 224.Each contact 220 also has the contact part 226 of extending between its first and second end 222,224.When plug was inserted the opening 204 of housing 202, the contact part 226 of joint 200 formed electric the contact with the contact of plug.
As mentioned above, plug is introduced bad NEXT on the electric socket lead at the interface of contact 220 and plug.As the part compensation of the bad NEXT of plug, socket 200 is in the described electric capacitance compensation coupling (C2) of introducing at the interface.As shown in Figure 6 and Figure 7, the capacitance compensation of NEXT compensating basin coupling (C2) is preferably provided by flexible print circuit capacitor 230,232, and they are connected in the downside of the contact part 226 of contact 220 with flexible arm.
In described embodiment, capacitor 230 links to each other across contact 220 with 232, contact 220 be connected to lead to 1 (lead 3 and 5) and lead to 2 (leads 4 and 6). Capacitor 230 and 232 is installed by the flexible print circuit capacitor board is electrically connected in respective contacts 220.Be appreciated that capacitor can be realized by any suitable capacity cell.Because capacitance compensation part (C2) is connected in described plug contact interface and because the distance from described plug contact interface to electric capacity active centre is minimized, the phase angle between the bad NEXT of plug and the NEXT compensation coupling (C2) is minimized.
Referring now to Fig. 8,, shows the preferable layout of circuit lead in the printed circuit board (PCB) 210 of socket 200 or trace.Printed circuit board (PCB) 210 has front portion 250 and rear portion 252.Anterior 250 comprise the front terminal 260 of a plurality of 1-8 of being designated as, and the rear portion 252 of printed circuit board (PCB) 210 comprises the rear terminal 262 of a plurality of 1-8 of being designated as.For ease of explanation, only be illustrated in the circuit paths between the rear terminal 262 (being designated as 3-6) on front terminal 260 (being designated as 3-6) and the rear portion 252 in the drawings.As shown in Figure 6, insulation displacement contact (IDC) is installed in each rear terminal 262.IDC 270 is connected electrically to front terminal 260 by the circuit paths on the printed circuit board (PCB) 210.
According to the teaching of ' 358 patent, the ad-hoc location of socket 200 on the circuit paths of NEXT crosstalk zone place joint introduced and crosstalked or counter-bonification coupling (C3).As shown in Figure 8, the capacitance compensation component C3 of the NEXT crosstalk zone of socket 200 is introduced by capacitor 280 and 282.
The printed circuit board (PCB) 210 of socket 200 is realized FEXT crosstalk scheme or FEXT district, to reduce or to offset the FEXT that plug makes up.
The FEXT compensation scheme is with crosstalk capacitance coupling (Cc) and inductance and capacitance compensation coupling (L
FCZAnd C
L) be incorporated on the circuit paths of printed circuit board (PCB) 210.The capacitance compensation coupling Cc of FEXT crosstalk zone is introduced by capacitor 290,292, and compensation coupling (L
FCZAnd C
L) produce by the current-carrying circuit paths is positioned in close.Note, can adjust the thickness of trace or the distance between cross sectional dimensions and lead and the trace or spacing to obtain required coupling.
As shown in Figure 8, capacitor 290 links to each other with 4,6 ground across terminal 3,5 respectively near the front terminal of the printed circuit board (PCB) 210 of socket 200 with 292.Each capacitor 290,292 preferably is made of parallel conductive plates, but also can be realized by other suitable capacity cell.
Compensation coupling (L
FCZAnd C
L) the active centre and the position of the active centre of the capacitive cross-talk of crosstalk zone coupling (Cc) preferably equidistant, and move equal from the phase angle at the electric interface of plug and socket.
It should be noted that inductance compensation coupling (L
FCZ) generation introduce and to have and inductance coupling high L
FCZCapacitive coupling (the C of identical polar
L).Yet the size of compensation coupling (Cc) is designed to can offset C when producing NEXT
LCoupling and inductance coupling high (L
FCZ).C
FCZ＝Cc-C
L。As a result, compensation coupling (L
FCZAnd C
L) equal and opposite in direction preferably, and crosstalk components (Cc) had opposite polarity.Therefore, two component (L
FCZ) and (C
FCZ) can when NEXT produces, offset separately.
IDC is designed to make their effect minimums to NEXT and FEXT.Their effect can be left in the basket.
Layout shown in Fig. 8 is effectively when compensation forward direction FEXT, and can not have a negative impact to forward direction NEXT (promptly as observed NEXT when the cable that is connected in plug receives drive signal).Because compensation coupling (L
FCZAnd C
L) the active centre and the active centre of the capacitive cross-talk of crosstalk zone coupling (Cc) be designed to the electric interface of plug and socket equidistantly, inductance that the FEXT crosstalk zone is produced and capacitive coupling vector are in position, same phase angle with regard to it with regard to the effect of forward direction NEXT.
For reverse NEXT (promptly when by IDC observed NEXT when the cable of the end opposite with plug that be connected to socket receives drive signal), compensation coupling (L
FCZAnd C
L) the active centre and the electric interface of the active centre of the capacitive cross-talk of crosstalk zone coupling (Cc) and plug and socket not equidistant.This is because asymmetric because of the physics that uses far-end capacitive coupling 290 and 292 to produce in Fig. 8 trace layout.As a result, the inductance of FEXT crosstalk zone will be positioned at different positions, phase angle with the capacitive coupling vector, thereby reverse NEXT is had a negative impact.
Fig. 9 is the plane graph that has apart from the layout of the substituting PCB 550 of the coupling of all directions symmetry, thus the FEXT compensation is provided and can to forward direction or oppositely NEXT not cause adverse effect.PCB 550 comprises front portion 552 and rear portion 554.Anterior 552 comprise a plurality of front terminals 560 that are designated as 1-8, and rear portion 554 comprises a plurality of rear terminal 562 that indicate 1-8.The same with Fig. 8 example, the circuit paths between front terminal (being designated as 3-6) and the rear terminal (being designated as 3-6) only is shown.In addition, for clarity sake from Fig. 9, saved the NEXT crosstalk zone.
Similar to the PCB 210 of Fig. 8, the FEXT crosstalk zone of PCB 550 is used distributed inductance coupling (that is, making trace level or vertically closely setting each other there).Yet different with the PCB 210 that uses far-end capacitive coupling (plane-parallel capacitor 290 and 292), PCB 550 utilizes distributed capacitor coupling 590, and it takes to be widened to the form near the local overlapping trace of distributed parallel-plate.As a result, the coupling vector just is positioned at identical position, phase angle with regard to the effect of forward direction and reverse NEXT.Therefore, the FEXT compensating basin is of value to FEXT, is neutral to forward direction and reverse NEXT simultaneously.
Figure 10 and Figure 11 are respectively the sectional views of the PCB 550 that dissects along Fig. 9 line A-A and B-B.The trace corresponding with trace 3,4,5,6 is illustrated as one of four internal layers that traverse PCB 550.Course provided at interval expectation capacitance interval and the inductance coupling high effect that suitable FEXT compensates in this minute.
Although Fig. 9-Figure 11 illustrates a kind of of symmetrical FEXT compensating basin and may realize, also can use other realization and do not break away from expected range of the present invention.For example, can use the trace of different length and configuration.Similarly, also can adopt difformity and configuration to distributed capacitor.
Referring now to Figure 12 and Figure 13,, illustrate according to the present invention and realize that identical compensation scheme is to reduce another electric connection 300 of NEXT and FEXT.Electric connection 300 is substantially similar to aforementioned electric joint 200, except the connection between socket and the cable that is attached thereto is configured to " perforation (punchdown) downwards " design.The assembly of corresponding with those assemblies of the electric connection 200 of Fig. 5 basically electric connection 300 is with the expression of 300 (three-hundred) series.Like this, electric connection 300 to further describe understanding the present invention fully be unnecessary.
Method and apparatus of the present invention provides a kind of compensation technique with the NEXT and the FEXT that offset or minimizing is produced by electric connection.Especially, compensation scheme will compensate and crosstalk couplings is incorporated in the electrical path of electric connection, to reduce or counteracting crosstalking only by the plug combination results.
In described embodiment, capacitor 230 with 232 across 1 (lead 3,5) and lead being connected the contact 220 that 2 (leads 4,6) link to each other with lead. Electric capacity 230 and 232 is installed by the flexible print circuit conductive plate is electrically connected in respective contacts 220.Be appreciated that capacitor can be by any suitable capacity cell realization.Because capacitance compensation assembly (C
2) be connected on the described interface and the distance from described interface to electric capacity active centre is minimized, at the bad NEXT and the NEXT compensation coupling (C of plug
2) between the phase angle be minimized.
Figure 14-19 illustrates an embodiment of flexible print circuit capacitor.This flexible circuit capacitor is for example made by Du Pont
The plated film of polyimide film is made.Capacitor 230 and 232 comprises a pair of cheese rivet, and is connected to the plug contact interface via resistance or spot welding.
Figure 20-27 illustrates second embodiment of flexible print circuit capacitor 230 and 232.These capacitors comprise welding " plug " 236 and are connected in the contact 220 that comprises zinc-plated in advance district 238.
Figure 28-121 illustrates other embodiment according to capacitor of the present invention.Figure 28 illustrates the flexible circuit capacitor 400 with welding rivet 402.The moulding in advance of welding rivet 402 also mechanically is deformed into and enters the hole that is arranged on place, capacitor 400 ends.Flexible circuit capacitor 400 is connected in receptacle connector by the resistance welded process.Figure 29 is the vertical view of flexible circuit capacitor 400, and Figure 30,31 and 32 is respectively the cross-sectional view that dissects along Figure 29 line I-I, J-J and K-K.As shown in figure 30, welding rivet 402 is inserted in the plated film through hole 404.Plated film through hole 404 is provided with pad.Rivet 402 has cheese head 406 (as shown in figure 31), and rivet 402 shown in Figure 30 and 32 in the downside mechanical deformation.
Figure 33,34 and 35 is cross-sectional views of flexible circuit capacitor 400, wherein welds rivet 402 and is connected in receptacle connector 408.As shown in figure 33, receptacle connector 408 can be provided with the zinc-plated pre-zinc-plated district 410 of scolder.As shown in figure 34, flexible circuit capacitor 400 combines with receptacle connector 408, contacts thereby welding rivet 402 forms physics with pre-zinc-plated district 410.Then, as shown in figure 35, soldering appliance 412 for example will weld rivet 402 by resistance welded and be soldered to contact 408.Welding can be carried out on some riveted joint contact interfaces simultaneously.Center line 412c shown in Figure 35 preferably is positioned on the plug contact interface.
Figure 36 illustrates another PCB type socket contacting capacitor 413.Socket contacting capacitor 413 can be used as the NEXT compensating basin.In this embodiment, printed circuit board (PCB) 414 makes contact chip 416 coupled at eyelet 418 places.Contact matching district 420 also for example is arranged on the contact chip 416 to be connected in receptacle connector by welding.Similarly structure is shown in Figure 37, and wherein contact chip 416 bendings are optionally to be installed on contact with contact electric capacity.Figure 38 is the end view of the receptacle connector capacitor 413 of Figure 36, and Figure 39 is the cross-sectional view that dissects along Figure 38 line L-L.
The cross-sectional view of Figure 39 illustrate by eyelet 418 fix in position and with the plated film through hole 422 electric contact chips that contact 416.Lead 424 also contacts with plated film through hole 422, and the capacitive coupling between the contact chip 416 in the permission printed circuit board (PCB) 414.Figure 40 illustrates the side partial sectional view of the varying width of printed circuit board (PCB) 414 inside conductors 424.
Figure 41 and 42 is the end views that are installed on the contact capacitor of the receptacle connector 408 that is arranged in the push pedal 426.The printed circuit board (PCB) 414 of receptacle connector capacitor is contained in the electric capacity gathering sill 428 of push pedal 426.The printed circuit board (PCB) 430 that push pedal is housed can be arranged in the push pedal 426.Figure 41 illustrates the receptacle connector 408 that does not match plug, and Figure 42 illustrates receptacle connector 408 reclinate situation when being matched with plug.Center line 430c illustrates the contact interface of plug.Contact chip 416 directly is welded in contact 408 along center line 430c under the plug contact interface.
Referring now to Figure 43,, another embodiment of the receptacle connector capacitor 432 of realizing the NEXT compensating basin is shown.In the embodiment of Figure 43, adopt flexible print circuit 434 to be connected in receptacle connector via riveting parts 436a and 436b.Rivet 436a and 436b preferably are provided with the cheese head.Figure 44 is the vertical view of receptacle connector capacitor 432, and Figure 45-47 is respectively the cross-sectional view that dissects along Figure 44 line M-M, N-N and O-O.As shown in figure 45, plated film through hole 438 allows being electrically connected between the first rivet 436a and first conductive plate 440.In addition, as shown in figure 47, another plated film through hole 438 allows being electrically connected between the second rivet 436b and second conductive plate 442.Figure 46 illustrates the cross-sectional view in the capacitive coupling district between first conductive plate 440 and second conductive plate 442.
Figure 48-50 illustrates receptacle connector capacitor 432a and the 432b that is connected in receptacle connector 408.Figure 48 is the vertical view that is connected in the receptacle connector 408 of receptacle connector capacitor 432a and 432b, and Figure 49 is the end view of Figure 48 assembly, and Figure 50 is the rearview of Figure 48 assembly.Show the contact 3,4,5 and 6 of eight contact sockets.The center line 442c that welds between receptacle connector 408 and receptacle connector capacitor 432a and the 432b aligns with the plug contact interface. Receptacle connector capacitor 432a and 432b are connected to receptacle connector 408 at an opposite face down bonding of plug contact interface.Shown in Figure 51 and 52, receptacle connector capacitor 432a and 432b are connected in receptacle connector 408 and are installed in the push pedal 426.Figure 51 illustrates the position of receptacle connector 408 when plug does not match receptacle connector 408, and Figure 52 illustrates the position of the receptacle connector that is complementary with plug.Printed circuit board (PCB) 430 can be arranged in the push pedal 426.Electric capacity gathering sill 428 is oriented to hold receptacle connector capacitor 432a and 432b.
Another embodiment of receptacle connector capacitor is shown in Figure 53 a-56.According to this embodiment of the invention, the bonding receptacle connector 408 that is installed on of receptacle connector capacitor 444a and 444b.Figure 53 a illustrates receptacle connector capacitor 444a and the 444b that is installed on receptacle connector 408.Show the receptacle connector 3,4,5 and 6 of eight contact sockets.Figure 53 b illustrates receptacle connector capacitor 444a and the 444b that separates with receptacle connector 408, and Figure 54 is the detailed view of the details " P " of Figure 53 b.Shown in Figure 54, bonding zone 446 is set on the contact chip 416 of receptacle connector capacitor 444a and 444b.Bonding zone 446 allows to form adhesion between receptacle connector capacitor 444a and 444b and receptacle connector 408.Shown in Figure 55, the assembly that is produced can be installed in the push pedal 426, and wherein electric capacity gathering sill 428 holds receptacle connector capacitor 444a and 444b.Bonding zone 446 is located immediately under the plug contact interface.Figure 56 is according to the socket of this embodiment of the invention and capacitor assembly.
According to an embodiment, shown in Figure 54, receptacle connector electric capacity 444a, 444b constitute with flexible print circuit 448.Figure 57 illustrates the side partial sectional view of the bonding zone 446 of the receptacle connector capacitor 444 that is connected in receptacle connector 408.Adhesive 450 places between first dielectric layer 452 and receptacle connector 408 such as the MYLAR@PET film of being made by Du Pont.Conductor pattern 454 is clipped between first dielectric layer 452 and second dielectric layer 456.Conductor pattern 454 is clipped between first and second dielectric layers 452,456 in the flexible print circuit 448.Be incorporated into to receptacle connector capacitor 444a and 444b bonding other receptacle connector.For example, receptacle connector electric capacity 444a is incorporated into receptacle connector to 3-5, and receptacle connector capacitor 444b is incorporated into receptacle connector to 4-6.This structure self produces capacitor by the conductor material 454 and the contact 408 of lamination form.Pass through two capacitors then with two contact series coupled.Total capacitance between two contacts is 1/2 of each capacitance.The thickness and the dielectricity of adhesive are comprised in the calculating.
Figure 58-61 illustrates NEXT compensating basin and flexible circuit contact splitter according to an embodiment of the invention.Flexible NEXT compensating circuit 458 comprises and is suitable for being connected in receptacle connector and being suitable for forming the electric electric capacity flexible circuit 460 that contacts via printed circuit board (PCB) 464 and printed circuit board (PCB) via contact welding rivet 462.In Figure 58 illustrated embodiment, the capacitive coupling between two contacts can realize in electric capacity flexible circuit 460.See Figure 59 again, show flexible shunt having 466.Flexible shunt having 466 is provided with rivet 462 being connected in receptacle connector, and is provided with PCB and complies with pin 464 to be connected in printed circuit board (PCB).Figure 61 illustrates the end view of flexible shunt having 466.Figure 61 illustrates the placement of flexible shunt having 466 between receptacle connector 468 and printed circuit board (PCB) 470.One section of plug 471 is shown, and plug contact interface 473 is connected on the position of receptacle connector 468 at rivet 462 directly.Figure 62 is the cross-sectional view along Figure 59 line Q-Q of flexible shunt having 466.Surrounded by the dielectric 474 of the KAPTON@ polyimide film of for example making by Du Pont such as the conductive trace 472 of copper cash.The use of flexible circuit splitter 466 has been shortened from the current path of plug 471 to PCB 470.Figure 59-62 illustrate do not have capacitor board, only provide the flexible shunt having 466 that is electrically connected.The length of 470 current path has been shortened from plug 471 to printed circuit board (PCB) in the use of flexible circuit.For example, the signal length x shown in Figure 61
2Less than signal length x
1
Figure 63-72 illustrates another flexible circuit capacitor 476 that is used to realize the NEXT compensating basin.Figure 63 is two flexible circuit capacitor 476a and the 476b with cheese rivet 478 of being connected in first to the 8th receptacle connector that marks among Figure 63.Figure 64 is the detail drawing of the details " R " of Figure 63, and it illustrates and is used to be welded in the cheese rivet 478 of receptacle connector and is used for the plated film through hole 480 that foundation is electrically connected between receptacle connector and capacitor board 482, shown in the dotted line of Figure 63.Figure 65 is the vertical view of flexible circuit capacitor 476 that clearly show that the structure of capacitor board 482, and Figure 66 is the end view of flexible circuit capacitor 476, and it illustrates 90 ° bent angle 475.
Figure 67 is the stereogram that the flexible circuit capacitor 476a that is connected in four receptacle connectors 484 is shown.Figure 68 is another stereogram that the additional flexibility circuit capacitor 476b that is connected in another four receptacle connector 484 is shown.These two flexible circuit capacitor 476a, 476b part each other overlap.Figure 69 and Figure 70 illustrate the flexible circuit capacitor 476a that is connected in receptacle connector 484, end view and the rearview of 476b.The first flexible circuit capacitor 476a is connected in the first, second, third and the 5th receptacle connector 484, and the second flexible circuit capacitor 476b is connected in the 4th, the 6th, the 7th and the 8th receptacle connector 484, shown in Figure 68 and Figure 70.
The overlapping of the capacitor board in the flexible circuit electric capacity 476 is shown in Figure 71 and 72.Figure 71 and 72 illustrates the flexible circuit capacitor that is used to be connected in the first, second, third and the 5th receptacle connector; The capacitor that is connected in the 8th, the 7th, the 6th and the 4th contact be shown in the mirror image of capacitor.Except that 1, the 2-7,8 all are contained in this to combination. Flexible circuit capacitor 476a and 476b are soldered to the receptacle connector bottom under the plug contact interface.
Referring now to Figure 73-88,, shows flexible print circuit 486 with electric capacity and inductance NEXT compensating basin.Figure 73 has the stereogram that the printed circuit board (PCB) that is used for being connected in the rivet 488 of receptacle connector and is used for being connected in printed circuit board (PCB) is complied with the flexible print circuit 486 of pin 464.When plug and receptacle connector coupling, flexible print circuit 464 can be crooked flexible between receptacle connector and printed circuit board (PCB), and rivet 488 directly is welded under the plug contact interface.Figure 74 is the plane graph that is shown in broken lines the flexible print circuit 486 of conductive path 490.Be used to lead 1,2,3,5 that the flexible print circuit 486 of NEXT compensating basin is provided shown in it; Be used to lead 4,6,7,8 provide the flexible print circuit of NEXT compensating basin be shown in the mirror image of flexible print circuit 486.Conductive path 490 is set in the flexible print circuit 486, thus flexible print circuit 486 all leads except that 1, the 2-7,8 on electric capacity and inductance NEXT compensation are provided.
Figure 75 is the cross-sectional view along Figure 74 line S-S, and Figure 76 is the cross-sectional view along Figure 74 line T-T.These illustrate the location of conductive path 490 along first and second cross sections of flexible print circuit 486.
Figure 77-the 80th illustrates plane graph with the first, second, third conductive path 490a-490d that links to each other with the 5th lead of eight wire sockets with solid line respectively.
Figure 81-84 illustrate step by step from below to the top conductive path be printed on the conductive path 490 of the flexible print circuit 486 on the flexible print circuit 486.Figure 81 illustrates the below conductive path 490b that links to each other with second lead.Figure 82 illustrates the second below conductive path 490d that links to each other with the 5th lead.Figure 83 illustrates the second the top conductive path 490c that links to each other with privates.Figure 84 illustrates the top conductive path 490a that links to each other with first lead.Figure 85 for example illustrates the dielectric layer 474 of the Kapton polyimides rete of being produced by Du Pont.Can form flexible circuit 468 by stack.
Figure 86 is another plane graph of conductive path 490a-490d, and Figure 87 and Figure 88 are respectively the cutaway views along Figure 86 line U-U and V-V, and they illustrate the overlapping of conductive path 490a-d.Can add the capacitor board of first lead adjacent and the capacitor board of second lead adjacent as required with the capacitor board of the 5th lead with the capacitor board of privates.
Flexible PCB according to some embodiments of the invention can use more than one method of attachment to be connected in receptacle connector.Figure 89 is the stereogram that is suitable for welding or be bonded in the flexible circuit capacitor 492 of receptacle connector.Rivet 488 is provided to be connected in a receptacle connector, and bonding zone 466 is provided to be connected in another receptacle connector.Figure 90 is the vertical view of flexible circuit capacitor 492, and Figure 91-93 is respectively the cross-sectional view of the flexible circuit capacitor 492 that dissects along Figure 90 line W-W, X-X, Z-Z.Flexible dielectric 494 covers first and second conductive plates 440 and 442.Bonding zone 446 is shown in Figure 91, and rivet 488 extends plated film through hole 489, shown in Figure 93.Figure 94 is the end view that the rivet 488 that is welded in receptacle connector 408 is shown, and Figure 95 is the end view that is incorporated into the bonding zone 446 of receptacle connector 408.As mentioned above, the capacitive coupling between receptacle connector 408 and flexible circuit capacitor 492 takes place at bonding zone.Welding and bondingly all directly place under the plug contact interface.
Referring now to Figure 94-104,, shows the NEXT building-out capacitor circuit 496 of all eight leads that are used to connect eight wire sockets.NEXT building-out capacitor circuit 496 is flexible electrical capacitive circuits.Figure 96 is the stereogram of NEXT building-out capacitor circuit 496.Rivet 497 is used for being welded in the receptacle connector bottom at plug contact interface place.Figure 97 is the plane graph of each conductive plate that links to each other 498 in eight contacts with socket.Conductive plate 498a-498h is connected shown in Figure 98 with first to the 8th contact, and Figure 98 illustrates the end view along Figure 97 sight line Z that conductive plate 498a-498h overlaps.
Figure 99-the 104th, the plane graph of NEXT building-out capacitor circuit 496 inside shows the shape of conductive plate 498a-498h.Figure 99-104 is from Figure 99 of below conductive plate 498a (linking to each other with first receptacle connector) of Figure 98 is shown, till the top conductive plate 498h that Figure 98 the is shown Figure 104 of (linking to each other with the 8th receptacle connector).
Figure 105-Figure 109 illustrates another flexible print circuit 500 with the electric capacity that is connected in receptacle connector and inductance NEXT compensation.Figure 105 is the plane graph that is shown in broken lines the flexible print circuit 500 of conductive path 502.First end 504 of flexible print circuit 500 is connected in receptacle connector via welding/scolder dish 505, and second end 506 is complied with pin 464 via PCB and is connected in printed circuit board (PCB).Flexible print circuit 500 is suitable for using with the 3rd and the 5th contact of eight contact sockets; Identical flexible print circuit 500 also can use with the 4th and the 6th contact.
Figure 107-109 illustrates the pantostrat of flexible print circuit 500.Figure 107 illustrates the first insulating barrier 508a and the first conductive path 502a that links to each other with the 3rd receptacle connector.Figure 108 illustrates the second dielectric layer 508b and the second conductive path 502b that links to each other with the 5th receptacle connector.Figure 109 illustrates the 3rd dielectric layer 508c.Dielectric layer 508a-c can be made of KAPTON@.
Figure 110 and 111 illustrates the flexible print circuit 500 that is installed in the socket.Receptacle connector 408 is installed in the push pedal 426, and flexible print circuit 500 is welded in the receptacle connector 408 under the plug contact interface.Flexible print circuit 500 is welded in PCB 509.Figure 110 illustrates the receptacle connector 408 that is in not with the position of plug coupling, and Figure 111 illustrates the receptacle connector 408 that is in the plug matched position.When receptacle connector 408 was mobile between two positions, flexible print circuit 500 was crooked flexible.The arrow of Figure 111 illustrates the current path that flows through socket, comprises the path of flowing through flexible print circuit 500.
Figure 112 is the plane graph that is used to provide another printed circuit 510 of electric capacity and inductance NEXT compensation.Rivet 511 is provided to be connected in receptacle connector.The flexible print circuit 510 of Figure 112 is fit to be connected in the 3rd and the 5th receptacle connector, yet similar substantially flexible print circuit can be used to be connected in the 4th and the 6th receptacle connector of eight contact sockets. Conductive path 512a and 512b are set in the flexible print circuit 510, and capacitor board 514a and 514b are connected in each conductive path 512a and 512b.Parallel but the conllinear not of the vertical channel of conductive path 512a and 512b.Conductor part 516a and 516b constitute the part of vertical channel. Inductive part 516a and 516b provide the adjacent current carrying conductor and/or the transducer of inductance compensation coupling.
Figure 113 is the upper right side stereogram, and Figure 114 is an end view, and Figure 115 is the front view of the embodiment of the flexible PCB that is used to provide crosstalk compensation 518 of profit according to the present invention.PCB 518 comprises major part 520 and is connected finger piece that for example finger piece 522.The a plurality of capacitor boards of major part 520 supportings (being four blocks of plates corresponding to plug interface contacts 3-6 in this case) are to provide capacitive coupling.Shown in Figure 116-121, also provide the inductance coupling high part to the lead-in wire of capacitor board.Finger piece 522 as bindiny mechanism in order to PCB 518 is connected in plug interface contacts.Although can use any suitable interconnection technique, what use in described embodiment is resistance welded rivet 524.Except PCB 518 being connected in plug interface contacts (or be connected in another lead of the plug interface contacts), rivet 524 also can be used as the contact post of capacitor board and lead-in wire thereof.This is shown in Figure 114-121, four layer capacitance plates 526 shown in it and lead-in wire (528a-d), and rivet 524 stretches out to form suitable contacting with finger piece 522 by these layers.
For the purpose of convenient the elaboration, Figure 116 is meant to have the not front view of the PCB 518 of curved configuration finger piece.Figure 117 is a cross-sectional view from the bottom of PCB 518 to Figure 116 line A/A that go up observed capacitor board and lead-in wire from.Notice that Figure 114 is not shown only to support capacitor board and lead-in wire or as the part of the PCB 518 of dielectric or insulator.Figure 116-121 illustrates and places capacitor board and lead-in wire how relative to one another, to cause the relative higher density of inductance coupling high in relatively than short distance.For example, in Figure 116, the lead-in wire 528a of capacitor board 526a and lead 5 be shown in the plate and the lead-in wire of the top, have " U " shape of bypass.Identical " U " shape that direction changes is used to lead 3,4 and 6, shown in the dotted line and solid line of Figure 116.The physical positioning of capacitor board and crossover region are determined the capacitive coupling amount.Similarly, the detached from each other and overlap length of lead-in wire is determined the inductance coupling high amount.Figure 117 also illustrates the electric current relative direction that causes owing to the inductance coupling high in the respective wire, and this provides highdensity inductance coupling high.Figure 118-121 illustrates lead-in wire 528a-d and the capacitor board 526a-d that links to each other with privates with the 5th, the 3rd, the 6th of eight wire sockets respectively.
Although special preferred embodiment of the present invention is showed and illustrated, clearly those skilled in that art can make and changing and change and do not deviate from teaching of the present invention.The content of being set forth in the explanation of front and the accompanying drawing only provides and is not construed as limiting as example.When based on prior art when suitable angle is observed, actual range of the present invention is intended to be limited by the following claim book.
Claims (6)
1. crosstalk compensation devices that is used for the communication joint formed by socket and plug, comprise by compliant member machinery or electrically be connected in a printed circuit of receptacle connector, each compliant member is connected the opposite side at the interface between the respective contacts of the receptacle connector and the plug of installing and adjacent with described interface, and wherein receptacle connector is made of the metal cantilever beam.
2. crosstalk compensation devices as claimed in claim 1 is characterized in that, also comprises near-end cross (NEXT) compensating basin.
3. crosstalk compensation devices as claimed in claim 1 is characterized in that, described printed circuit offers the joint that socket is connected in network cable with at least one section of network signal path.
4. crosstalk compensation devices as claimed in claim 3 is characterized in that printed circuit provides capacitance compensation.
5. crosstalk compensation devices as claimed in claim 3 is characterized in that printed circuit provides electric capacity and inductance compensation.
6. crosstalk compensation devices as claimed in claim 1 is characterized in that printed circuit is a flexible print circuit.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US54405004P | 2004-02-12 | 2004-02-12 | |
| US60/544,050 | 2004-02-12 | ||
| US55801904P | 2004-03-31 | 2004-03-31 | |
| US60/558,019 | 2004-03-31 | ||
| US11/055,344 | 2005-02-10 | ||
| US11/055,344 US7179131B2 (en) | 2004-02-12 | 2005-02-10 | Methods and apparatus for reducing crosstalk in electrical connectors |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800049464A Division CN101107753B (en) | 2004-02-12 | 2005-02-11 | Communication socket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101635416A CN101635416A (en) | 2010-01-27 |
| CN101635416B true CN101635416B (en) | 2011-08-24 |
Family
ID=42655110
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010157290A Pending CN101820121A (en) | 2004-02-12 | 2005-02-11 | Communication jack |
| CN2009101461593A Active CN101635416B (en) | 2004-02-12 | 2005-02-11 | Methods and apparatus for reducing crosstalk in electrical connectors |
| CN2011100632012A Pending CN102176584A (en) | 2004-02-12 | 2005-02-11 | Method and apparatus for reducing crosstalk in electrical connectors |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010157290A Pending CN101820121A (en) | 2004-02-12 | 2005-02-11 | Communication jack |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100632012A Pending CN102176584A (en) | 2004-02-12 | 2005-02-11 | Method and apparatus for reducing crosstalk in electrical connectors |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN101820121A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150085458A1 (en) * | 2013-09-26 | 2015-03-26 | Raul Enriquez Shibayama | Reducing Far End Crosstalk in Single Ended Interconnects and Buses |
| US11226452B2 (en) | 2020-05-11 | 2022-01-18 | Google Llc | Dual polarity optical fiber adaptor with protruding tab and patch panel |
| CN111766468B (en) * | 2020-07-08 | 2022-08-30 | 重庆理工大学 | Electric topology recognition system of capacitive intelligent experimental island |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6079996A (en) * | 1999-04-15 | 2000-06-27 | Lucent Technologies Inc. | Selectable compatibility electrical connector jack |
| CN1277472A (en) * | 1999-06-08 | 2000-12-20 | 朗迅科技公司 | Intensified communication connector with crosstalk compensation |
| US6196880B1 (en) * | 1999-09-21 | 2001-03-06 | Avaya Technology Corp. | Communication connector assembly with crosstalk compensation |
-
2005
- 2005-02-11 CN CN201010157290A patent/CN101820121A/en active Pending
- 2005-02-11 CN CN2009101461593A patent/CN101635416B/en active Active
- 2005-02-11 CN CN2011100632012A patent/CN102176584A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6079996A (en) * | 1999-04-15 | 2000-06-27 | Lucent Technologies Inc. | Selectable compatibility electrical connector jack |
| CN1277472A (en) * | 1999-06-08 | 2000-12-20 | 朗迅科技公司 | Intensified communication connector with crosstalk compensation |
| US6196880B1 (en) * | 1999-09-21 | 2001-03-06 | Avaya Technology Corp. | Communication connector assembly with crosstalk compensation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102176584A (en) | 2011-09-07 |
| CN101820121A (en) | 2010-09-01 |
| CN101635416A (en) | 2010-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101107753B (en) | Communication socket | |
| US10177501B2 (en) | Telecommunications device | |
| US9407044B2 (en) | Method for reducing crosstalk in electrical connectors | |
| CN101529670B (en) | Telecommunications jack with crosstalk compensation and arrangements for reducing return loss | |
| CN102292880B (en) | There is the telejack of adjustable crosstalk compensation | |
| CN103762455B (en) | There is the communications connector of the contact wire structure providing crosstalk compensation | |
| CN101796694B (en) | Internal crosstalk compensation circuit formed on a flexible printed circuit board positioned within a communications outlet, and methods and systems relating to same | |
| CN101449435A (en) | Telecommunications jack with crosstalk compensation provided on a multi-layer circuit board | |
| CN102576965A (en) | Electrical connector having an electrically parallel compensation region | |
| CN101142861B (en) | Communications connector for imparting crosstalk compensation between conductors | |
| CN101635416B (en) | Methods and apparatus for reducing crosstalk in electrical connectors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |