EP0596313A2 - Konnektorelement für eine hochfrequente Übertragungsstrecke - Google Patents

Konnektorelement für eine hochfrequente Übertragungsstrecke Download PDF

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Publication number
EP0596313A2
EP0596313A2 EP93116836A EP93116836A EP0596313A2 EP 0596313 A2 EP0596313 A2 EP 0596313A2 EP 93116836 A EP93116836 A EP 93116836A EP 93116836 A EP93116836 A EP 93116836A EP 0596313 A2 EP0596313 A2 EP 0596313A2
Authority
EP
European Patent Office
Prior art keywords
portions
connector element
conductor portions
conductor
parts
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.)
Withdrawn
Application number
EP93116836A
Other languages
English (en)
French (fr)
Other versions
EP0596313A3 (de
Inventor
Dirk 3M Laboratories Heinrich (Europe)Gmbh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of EP0596313A2 publication Critical patent/EP0596313A2/de
Publication of EP0596313A3 publication Critical patent/EP0596313A3/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6625—Structural association with built-in electrical component with built-in single component with capacitive component
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6473—Impedance matching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6594—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members

Definitions

  • the invention refers to a connector for a high frequency transmission path.
  • PCB printed circuit board
  • the PCB has an array of contact pins onto which coaxial receptacles of coaxial cables are plugged.
  • a coaxial cable has a predetermined impedance.
  • the PCB usually is matched to this impedance, too. This is also valid for a connection of a contact pin with a receptacle.
  • Impedance mismatching in the conventional high frequency technology is not serious as far as predetermined limits are not exceeded. They lead, however, to undesired reflections if the transmission frequency attains high valves, e.g. above 500 MHz up to 1 GHz. The distortions occurring cannot be neglected.
  • the invention provides a connector element for a high frequency transmission path which is adapted to interconnect components of the transmission path with a predetermined impedance.
  • Non-shielded conductor portions of conventional connector elements normally have an impedance which is too high, i.e. higher than the usual impedance values of 50, 75, or 90 Ohm.
  • the impedance of a high frequency transmission line depends upon the inductance and the capacitance of the path as well. If the capacitance of such a transmission path is increased, the impedance decreases and vice versa.
  • the invention uses these principles in that the conductor portions of the connector element are provided with opposite surface portions being spaced from each other with an amount which deviates from that of adjacent parts of the conductor portions.
  • the capacitance between the conductor portions can be increased significantly.
  • the impedance of a conductor element for a high frequency transmission path thus, can be reduced or enlarged, with the space between the terminals of the conductor portions remaining unchanged.
  • the capacitance is dependent upon the distance and the effective surface area of electrodes as well as upon dielectric constant of the medium between the electrodes.
  • the surface portions may be at least partially enclosed by a dielectric material.
  • the surface portions are parallel to each other. They can be provided with a width larger than the width or the diameter of adjacent parts of the conductor portions.
  • the conductor portions for example can be provided with a square or circular cross section.
  • the conductor portions may have a larger width than outside the retaining member.
  • the conductor portions can be provided with a thickening which may be integrally formed with the conductor portions. The thickening can be for example circular or rectangular in cross section.
  • a circular expansion leads to a relatively small increase in the capacitance. It has the further disadvantage similar to that of the rectangular thickening that the space between adjacent pairs of conductor portions is also reduced resulting in an improved electro-magnet coupling of adjacent signal conductors. This may cause undesired cross talk between adjacent signal conductors. Therefore, a preferred embodiment of the invention provides a thickening which is triangular in cross section, with the opposite sides of the triangle being approximately parallel. The triangular shape has the advantage that a significant increase in the capacitance between ground and signal conductor is achieved while the capacitance between adjacent ground or signal conductors, respectively, is substantially unvaried.
  • the increased area may be an extension T-shaped in cross section, with the transverse web of the extensions of opposite conductor portions being approximately parallel. Also with the embodiment, cross talk can be substantially avoided.
  • the surface portions are formed by a coining of integral conductor portions. If conductor portions or pairs of conductors are coined in the common plane by bending them towards each other so that the coined portions extend parallel with a smaller space therebetween, the capacitance of this transmission portion is also increased.
  • the coined portions are flattened in order to enlarge the cooperating surfaces of the conductor portions.
  • the coined area may have a larger width than adjacent parts of the conductor portions.
  • Such conductor portions can be manufactured relatively simply. The blanks can be made by punching or cutting from wire material while the coined portions are made by a coining step.
  • the surface portions can be separate parts which are suitably electrically attached to the conductor portions.
  • the separate parts can be attached to the conductor portions by welding, soldering, adhering or the like. Alternately, the separate parts can be plugged onto the conductor portions.
  • the separate parts can be formed as clips or the like in order to attach them to the conductor portions by a snapping connection.
  • a further embodiment of the invention provides separate parts having projection legs at the end, with a slot formed in the legs from the free end thereof and adapted to accommodate the conductor portion in aligned slots.
  • the separate parts are made of sheet material. However, they can be also manufactured of solid material and they may be provided with a triangular, T-shaped, rectangular, circular or the like cross sections similar to the above discussed expansions.
  • the parts of the conductor portions outside the retaining member are preferably straight and parallel and for example may be pin-shaped to permit an insertion into correspondence receptacles or openings of PCBs.
  • the part of the conductor portions outside the retaining member may include an angle, e.g. 90°.
  • the part of the conductor portions providing the surface portions may be curved in order to achieve an increase of the capacitance throughout the total length within the retaining member.
  • the parts of the conductor portions outside the retaining member may be pin-shaped.
  • these parts can be formed as receptacles, e.g. to be connected with contact pins on a PCB.
  • the connector element according to the invention can be used for a number of applications. It can be for example used to establish a connection between two PCBs.
  • the PCBs may be located parallel or include an angle relative to each other.
  • the connector element for example can be located adjacent an edge of the PCB and be connected with a bus or the like.
  • a further application for example is to interconnect a female connector part and PCB, with the connector part and the PCB may have an arbitrary angle therebetween.
  • a third application is to interconnect two female connector parts including an arbitrary angle therebetween.
  • the connector element according to the invention may interconnect a male connector part and a PCB.
  • Fig. 1 three parallelepiped female plug- shaped connector elements 10 are illustrated connected with coaxial cable 12.
  • the housing 14 of conductive material is connected with the shielding (not shown) of cable 12.
  • a connector element 16 is depicted having a parallelepiped retainer member 18 of dielectric material and a plurality of similar pin-shaped elements 20.
  • Member 18 rests on a printed circuit board 22 (PCB) which is diagrammatically illustrated.
  • the pin-shaped elements or conductor portions 20 are arranged in pairs.
  • the row of adjacent pins 24, for example, serve as signal conductors and the opposite row of conductor portions 26 are, for example, ground conductors.
  • the conductor portions 24, 26 consist of three parts.
  • One part or section 28 or 30, respectively, is embedded in the material of member 18.
  • Contact pins 32, 34 rectangular in cross section extend above and below member 18, respectively.
  • the contact pins 34 are accommodated by holes (not shown) in PCB 22.
  • a connector 10 may be plugged onto each pair of contact pins
  • the intermediate portions 28, 30 of contact elements 24, 26 are identically shaped so that only portion 30 is discussed in more detail. It is U-shaped and includes two parallel spaced leg portions 38, 40 and a web portion 42 therebetween.
  • the leg portions 38, 40 are triangularly shaped, with one peak attached to the contact pins 32, 34.
  • the web portion 42 has the same width as the edge of the leg portions 38, 40 at the ends thereof.
  • the U-shaped portions 28, 30 may be integrally formed with the elements 24, 26, e.g. through a suitable coining step. However, it is also conceivable to make portions 28, 30 separately and to attach them to the contact pins 32, 34 by welding or soldering.
  • the opposite surfaces of the web portions 42 of the intermediate parts 28, 30 are close to each other and have a larger surface area than the contact pins 32, 34 outside member 38 which serves as retaining body.
  • the capacitance of the pairs of conductor portions 24, 26 in the range of the intermediate parts 28, 30, thus, is substantially higher than outside retaining member 18.
  • the capacitance between adjacent signal conductor portions 24 or between adjacent ground conductor portions 26 is substantially constant if compared with intermediate portions would be merely throughgoing extensions of the contact pins 32, 34.
  • the danger of cross talk is not higher than with conventional connector elements.
  • a connector element 16 a of Fig. 2 has a parallelepiped retaining member 18a of dielectric material. It includes a plurality of contact elements 20, i.e. pin-shaped signal contact elements 24a and pin-shaped ground contact elements 26a which are arranged in pairs. Each of the elements 24a, 26a includes contact pins 32a, 34a rectangular in cross section on opposite ends retaining member 18a. Thickened portions 44 are rectangular in cross section and are provided interiorly of the dielectric retaining member 18a. The contact elements 24a, 26a, or the pairs of conductor portions, respectively, have a significantly greater capacitance in the area of retaining member 18a. In contrast to the embodiment of Fig.
  • the thickening 44 may be integrally formed with conductor portions 24a, 26a, however, it can be separately formed and fitted onto the pins 32a, 34a.
  • Fig. 3 shows a connector element 16b including a parallelepiped member 18b of dielectric material.
  • Pin-shaped contact elements or conductor portions 24b, 26b form pairs of contact elements 20b, with the contact pins 32b, 34b outside retaining member 18b having circular cross section.
  • the conductor portions 24b, 26b are provided with an expanded portion 46 triangular in cross section, with the portion 46 arranged such that a surface 48 of a portion 46 is close and parallel to the corresponding surface of the portion 46 of the opposite conductor portion. Consequently, the axis of the pin portions 32b, 34b extend through the peaks of the triangle. Similar to the embodiment of Fig.
  • the capacitance between signal conductor portion 24b and ground conductor portion 26b is increased.
  • the triangular shape reduces the cross talk if compared with the embodiment of Fig. 2 because the capacitance between adjacent signal conductor portions 24b or ground connector portions 26b, respectively, is only marginally influenced by expanded portion 46.
  • pin-shaped conductor elements 24c, 26c have extensions 46c T-shaped in cross section, with the transverse web thereof having a surface 48c and the surfaces 48c of opposite conductor portions 24c, 26c of the pairs of conductor portions being parallel and relatively close to each other.
  • the contact pins 32c, 34c are rectangular or square, respectively, in cross section. Extensions 46c again increase the capacitance between signal conductor portions 24c and ground conductor portion 26c significantly, while the capacitance between adjacent signal conductor portions 24c or adjacent ground conductor portions 26c is only changed a small extent relative to a configuration without such extensions 46c.
  • the extensions 46 and 46c are formed integrally with the conductor portions 24c, 26c. It is understood that separate parts could be formed which are attached to the conductor portions in a suitable manner.
  • the conductor portions 24d, 26d are formed by throughgoing pins of square cross section constituting upper contact pins 32d and lower contact pins 34d.
  • Parts 50, U-shaped in cross section, are attached to the conductor portions 24d, 26d. They are made of conductive sheet material and have parallel legs 52, 54 and a web portion 56 interconnecting the legs. Slots 58 are cut in the legs from the free end thereof which slots are adapted to accommodate the conductor portions 24d, 26d.
  • the parts 50 can be clamped on the conductor portions 24d, 26d or attached thereto by welding or soldering.
  • the opposite surfaces 60 of the web portions 56 are parallel and relatively close to each other. These surfaces increase the capacitance between signal conductor portion 24d and ground conductor portion 26d of pairs of contact elements.
  • the conductor portions are straight, i.e. the contact pins on both sides of the retaining member 18 to 18d are aligned or located on a common axis.
  • the contact pins include and angle of 90°.
  • a member or body 64 approximately trapezoidal in cross section of suitable dielectric material retains pairs of signal and ground conductor portions 66, 68, respectively, with the ends thereof defining contact pins of square cross section including an angle of 90° therebetween.
  • Each pair of conductor portions 66, 68 are located in a common plane.
  • the conductor portions 66, 68 are flattened and broadened as shown at 70 and 72, respectively. Further, the flattened portions 70, 72 are closer to each other than the other parts of the conductor portions 66, 68 outside dielectric retaining body 64.
  • the portions 70, 72 thus, define a range of higher capacitance.
  • curved conductor portions 66a, 68a of square cross section and curved approximately at an angle of 90 are retained by a dielectric retaining body 64a similar to retaining body 64.
  • the conductor portions 66a, 68a are also provided with outer contact pins including an angle of approximately 90°.
  • Bracket-shaped elements 50a include orthogonally extending legs 52a, 54a at the ends thereof having slots 76 formed from the free ends thereof for the accommodation of the curved part 78 of conductor portions 66a, 68a.
  • the legs 52a, 54a are interconnected through a flat curved web portion 80.
  • the curved web portion 80 follwos the course of the bent parts 68 of the conductor portions 66a, 68a.
  • the parts 70 are also formed of sheet material.
  • the web portions 80 are located on opposite sides of conductor portions 66a, 68a so that closely spaced parallel surfaces are formed in order to increase capacitance.
  • connector elements 16 to 16d and 62, 62a are adapted to be connected with different components of a high frequency transmission path, e.g. with a PCB as shown in Fig. 1 or with connector elements including receptacles. It is also understood that instead of the contact pins disclosed, receptacles could be used without having the principles discussed above.
  • the retaining body 62a may have smaller outer dimensions.
  • the parts 50a including the legs 52a, 54a project beyond body 62a whereby a portion of the dielectric medium is air.
  • the retaining body 64b of the embodiment of Fig. 8 differs from that of Fig. 6 in that it includes square ports or openings 86 on one side which are aligned with receptacles 88 at the end of conductor portions 70b, 72b.
  • the receptacles 88 are formed by two spaced tongues 90, 92, with tongue 90 being a part of the flat conductor portion 70b, 72b, respectively, and tongue 92 may be a separate flat part or attached to tongue 90 through a web (not shown).

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP93116836A 1992-11-02 1993-10-19 Konnektorelement für eine hochfrequente Übertragungsstrecke. Withdrawn EP0596313A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4236945 1992-11-02
DE4236945A DE4236945A1 (de) 1992-11-02 1992-11-02 Verbindungselement für eine Hochfrequenz-Signalübertragungsstrecke

Publications (2)

Publication Number Publication Date
EP0596313A2 true EP0596313A2 (de) 1994-05-11
EP0596313A3 EP0596313A3 (de) 1995-10-25

Family

ID=6471899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116836A Withdrawn EP0596313A3 (de) 1992-11-02 1993-10-19 Konnektorelement für eine hochfrequente Übertragungsstrecke.

Country Status (4)

Country Link
EP (1) EP0596313A3 (de)
JP (1) JPH06215819A (de)
KR (1) KR940012709A (de)
DE (1) DE4236945A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1037330A2 (de) * 1999-03-09 2000-09-20 Molex Incorporated Impedanzabstimmung in elektrischen Schaltverbindern
US6394823B1 (en) 2000-05-26 2002-05-28 Molex Incorporated Connector with terminals having increased capacitance
US6439931B1 (en) 1998-05-13 2002-08-27 Molex Incorporated Method and structure for tuning the impedance of electrical terminals
US8257094B2 (en) 2009-05-09 2012-09-04 Fujitsu Limited Connection terminal and transmission line
US8777640B2 (en) 2009-04-30 2014-07-15 Tyco Electronics Amp Gmbh Electrical connector with impedance correction element and method for the manufacture thereof

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6171143B1 (en) 1998-04-24 2001-01-09 Nortel Networks Limited Multiple coaxial cable connector
CN100459313C (zh) * 2000-03-29 2009-02-04 杨泰和 具有与电磁波隔离壳体结构的导电连接接口装置
JP3596759B2 (ja) * 2000-11-22 2004-12-02 日本圧着端子製造株式会社 プリント配線板用コネクタ
US7471520B2 (en) * 2005-03-10 2008-12-30 Avago Technologies Fiber Ip (Singapore) Pte. Ltd. Impedance matching external component connections with uncompensated leads
JP2009301717A (ja) * 2008-06-10 2009-12-24 Yazaki Corp インナーターミナル
EP2876747B1 (de) * 2013-11-21 2018-04-25 Spinner GmbH RF Verbinderanordnung
DE102022202848A1 (de) 2022-03-23 2023-09-28 Yamaichi Electronics Deutschland Gmbh Kontaktelement, Kontaktelementsystem und Steckverbinder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800745A1 (de) * 1977-01-12 1978-07-13 Bunker Ramo Elektrischer verbinder
US4806111A (en) * 1985-11-01 1989-02-21 Hitachi, Ltd. Connector structure
US4914062A (en) * 1989-02-15 1990-04-03 W. L. Gore & Associates, Inc. Shielded right angled header
US4917616A (en) * 1988-07-15 1990-04-17 Amp Incorporated Backplane signal connector with controlled impedance
US4975069A (en) * 1989-11-01 1990-12-04 Amp Incorporated Electrical modular connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800745A1 (de) * 1977-01-12 1978-07-13 Bunker Ramo Elektrischer verbinder
US4806111A (en) * 1985-11-01 1989-02-21 Hitachi, Ltd. Connector structure
US4917616A (en) * 1988-07-15 1990-04-17 Amp Incorporated Backplane signal connector with controlled impedance
US4914062A (en) * 1989-02-15 1990-04-03 W. L. Gore & Associates, Inc. Shielded right angled header
US4975069A (en) * 1989-11-01 1990-12-04 Amp Incorporated Electrical modular connector

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6439931B1 (en) 1998-05-13 2002-08-27 Molex Incorporated Method and structure for tuning the impedance of electrical terminals
EP1037330A2 (de) * 1999-03-09 2000-09-20 Molex Incorporated Impedanzabstimmung in elektrischen Schaltverbindern
EP1037330A3 (de) * 1999-03-09 2001-11-07 Molex Incorporated Impedanzabstimmung in elektrischen Schaltverbindern
US6394823B1 (en) 2000-05-26 2002-05-28 Molex Incorporated Connector with terminals having increased capacitance
US8777640B2 (en) 2009-04-30 2014-07-15 Tyco Electronics Amp Gmbh Electrical connector with impedance correction element and method for the manufacture thereof
US8257094B2 (en) 2009-05-09 2012-09-04 Fujitsu Limited Connection terminal and transmission line
US8491316B2 (en) 2009-05-09 2013-07-23 Fujitsu Limited Connection terminal and transmission line

Also Published As

Publication number Publication date
EP0596313A3 (de) 1995-10-25
KR940012709A (ko) 1994-06-24
DE4236945A1 (de) 1994-05-05
JPH06215819A (ja) 1994-08-05

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