US3643201A - Impedance matching microstrip connector - Google Patents

Impedance matching microstrip connector Download PDF

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Publication number
US3643201A
US3643201A US3643201DA US3643201A US 3643201 A US3643201 A US 3643201A US 3643201D A US3643201D A US 3643201DA US 3643201 A US3643201 A US 3643201A
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Prior art keywords
signal
circuit
ground
pins
receptacles
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Expired - Lifetime
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Robert George Harwood
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AMP Inc
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AMP Inc
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00Coupling devices of the waveguide type
    • H01P5/02Coupling devices of the waveguide type with invariable factor of coupling
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCBs], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70Coupling devices
    • H01R12/71Coupling devices for rigid printing circuits or like structures
    • H01R12/72Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/73Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • H01R12/735Printed circuits including an angle between each other
    • H01R12/737Printed circuits being substantially perpendicular to each other
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00-H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
    • H01R13/658High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581Shield structure
    • H01R13/6585Shielding material individually surrounding or interposed between mutually spaced contacts

Abstract

Disclosed is a connector for making matched impedance connections, for example, as between two microstrip circuit boards. One-half of the connector has pins located therein with one end of each pin electrically connected to respective signal and ground planes in one microstrip, the second half of the connector has receptacles located therein, the ends of each receptacle mating, or making electrical contact respectively with, signal and ground planes on the second microstrip circuit board. The pins and receptacles are arranged in a pattern such that matched impedance, as between the two connectors, and therefore the two microstrip circuit boards, is effected.

Description

United States Patent Harwood [S4] IMPEDANCE MATCHING MIICROSTRIP CONNECTOR [72] Inventor: Robert George Harwood, Harrisburg, Pa.-

{73} Assignee: AMP Incorporated, Harrisburg, Pa.

[22] Filed: Feb. 9, 1970 [21] Appl. No.: 9,710

[52] US. Cl ..339/l7 R, 317/101 DH, 333/84 M, 339/14 R, 339/177 R [51] Int. Cl ..H0lr 17/18, HOSk 1/02 [58] Field oiSearch ..339/l7,18, 75,143,I76,14,

[56] References Cited UNITED STATES PATENTS 3,179,912 4/1965 Huber et a1. ..339/177 X 3,509,513 4/1970 Russin ..339/l77 X OTHER PUBLICATIONS IBM Technical Disclosure Bulletin, High-Density Printed Circuit Connector," by R. W. Callaway, W. Radzelovage, W. K. Springfield and B. E. Stevens, Vol. 8, N0. 3, Aug. 1965, p. 351

[ 1 Feb. 15, 1972 Primary Examiner-Marvin A. Champion Assistant Examiner-Terrell P. Lewis Altomey-Curtis, Morris and Safford, William J. Keating, Ronald D. Grefe, William Hintze, Adrian .1. La Rue, Frederick W. Raring, Jay L. Seitchik and John P. Vandenburg I57] ABSTRACT Disclosed is a connector for making matched impedance connections. for example. as between two microstrip circuit boards. One-half of the connector has pins located therein with one end of each pin electrically connected to respective signal and ground planes in one microstrip. the second hall of the connector has receptacles located therein. the ends of each receptacle mating, or making electrical contact respectively with, signal and ground planes on the second microstrip circuit board. The pins and receptacles are arranged in a pattern such that matched impedance, as between the two connectors, and therefore the two microstrip circuit boards, is effected.

4 Claims, 6 Drawing Figures 1 IMPEDANCE MATCHING MICROSTRIP CONNECTOR I BACKGROUND, OBJECTS, AND AT'I'AINMENTS OF THE PRESENT INVENTION ficult, if not extremely hard, to achieve, and these connections were not acceptable, where low standing wave ratios were desired. I

It is therefore an object of the present invention to provide a connector allowing connection of two microstrip circuit boards having matched impedance.

It is a further object of the invention to provide such a connector where the impedance is very accurately matched.

it is still a further object of the invention to provide a matched impedance connector in a sophisticated environment of high-quality electronic applications.

These and other objects of the invention are attained by providing a connector comprising two housing members, one containing receptacles therein, and one containing pins to be received by said receptacles. In each housing member, a matchingpin and receptacle is electrically connected to signal circuitry on the respective microstrip circuit board to which the connector housing member is attached. Also carried by each housing member, are respective pins and receptacles, which are attached to ground circuitry on the respective microstrip circuit boards attached to each'connector housing member. Each signal pin or receptacle is generally centrally located with respect to a plurality of ground pins or receptacles. Depending upon the impedance desired, which is found y wherein C is a constant somewhere between l20 (for one signal pin and one ground pin) and 60 (coaxial signal and ground relationship), e is the dielectric constant of the circuit board material, D is the spacing as between signal and ground conductors, and d is the diameter of the signal conductor, the number of ground pins and receptacles can be either increased or decreased, spaced farther away from or closer to, its respective signal pin or receptacle. In this manner, matched impedance, as between the two connectors and their relative microstrip circuit boards, is attained.

Other objects and attainments of the present invention will become apparent to those skilled in the art upon a reading of the following detailed description when taken in conjunction with the drawings in which there are shown and described illustrative embodiments of the invention; it is to be understood, however, that these embodiments are not intended to be exhaustive nor limiting of the invention but are given for purposes of illustration and principles thereof and the manner of applying them in practical use so that they may modify them in various forms, each as may be best suited to the conditions of a particular use.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is a perspective view of the preferred embodiment of the invention showing the connector just prior to being assembled with each half carrying a microstrip circuit board in mother-daughter board relationship.

FIG. 2 is a section view showing a connector housing member containing the receptacles and their method of attaching to the microstrip circuit board.

FIG. 3 shows a different embodiment wherein the half of the connector containing the receptacles is used in conjunction with an adapter to thereby allow interconnection as between the connector housing half and a coaxial cable.

FIG. 4 shows an embodiment where adjacent signal contacts share one ground contact.

FIG. 5 is yet another embodiment where adjacent signal contacts share two ground contacts.

FIG. 6 is yet a further embodiment showing each signal contact being surrounded by six ground contacts and adjacent signal contacts sharing two ground contacts.

Turning now to FIG. 1, there is seen a separated connector generally indicated at 10. The male housing member is indicated as at 12, and the female housing member is indicated as at 14. Male housing member 12 contains therein a plurality of pins 16, the rear ends of these pins 16 are connected, such as by soldering, to appropriate circuitry on the microstrip circuit board 18. The entire backface of circuit board 18 is coated with electrically conductive material such as copper, the edge of which can be seen at 20. Located on the front face of circuit board 18 are two signal circuits 22, 22, which are electrically connected to signal pins 24, 24. All of the pins other than pins 24, 24 have their ends connected to the copper coating 20, which constitutes a ground circuit plane.

Turning to the female housing member 14, located therein is a plurality of receptacle members 26. These receptacle members are electrically connected to various circuitry located on microswitch circuit board 28. Located on the upper face of microswitch circuit board 28 is a full coating of copper or other electrically conductive material 30. Located on the bottom face of microstrip circuit board 28 are two signal circuits 32, 32. Two of the receptacles 34, 34 are connected electrically at their one end to signal circuits 32, 32. The remainder of the receptacles 26 are electrically connected at their ends to the copper coating 30, which constitutes a ground circuit plane.

As can be seen from FIG. 1, each signal pin and signal receptacle is surrounded by a plurality of ground pins and ground receptacles, the particular pattern allowing for a given matched impedance as between the two microswitch circuit boards.

Turning to FIG. 2 and shown in cross section is a typical female housing member 36 containing a signal receptacle 38 and a plurality of ground receptacles 40. As can be seen, at one end the signal receptacle 38 has means connecting it to the signal plane or circuit 42, and the ground receptacles 40 are electrically connected to the ground plane 44 of the microstrip 46.

It is pointed out at this point, that with the proper connector housing members, any number of microstrip circuit boards could be sandwiched, thereby allowing high density use of the invention. Also as common as microstrip is strip-line wherein two signal circuits are sandwiched between two ground planes. The inventive concept of the instant connector is easily adaptable to strip-line.

In FIG. 3 there is seen a different embodiment of the invention wherein a typical female housing member of the instant invention is used in conjunction with an adapter thereby allowing hookup of a coaxial cable thereto. The female housing member 43 has ground receptacles 50, a signal receptacle 52 located therein, which receptacles are electrically connected to appropriate circuitry on a microstrip circuit board, which is not shown. The adapter 54 has located therein, ground pins 56 and a signal pin 58. This adapter matingly receives a coaxial cable 60, the signal pin of which comes into electrical contact with signal pin 58 of adapter 54, and the ground plane or shield of the coaxial cable comes into contact with the various ground pins 56. Thus it is seen that the connector of the instant invention will allow connection of coaxial cables to a microminiaturized environment.

The contact arrangement shown in FIG. 4 provides for adjacent signal contacts to share or have a mutual ground contact. In this manner, more compact spacing can be achieved and a sacrifice in crosstalk can be acceptable.

In FIGS. 5 and 6 there is seen two more embodiments showing the arrangement of shared ground contacts by adjacent signal contacts. Here again these arrangements provide for greater compactness at the expense of higher levels of crosstalk.

It will, therefore, be appreciated that the aforementioned and other desirable objects have been achieved; however, it should be emphasized that the particular embodiments of the invention, which are shown and described herein are intended as merely illustrative and not as restrictive of the invention.

I claim:

1. An electrical connection for making matched impedance connection between a microstrip circuit board and a coaxial cable conductor, said connector comprising a first housing member connected to said microstrip circuit board and having a plurality of receptacles therein, at least one of said receptacles constituting a signal receptacle and having one end electrically connected to signal circuitry located on one face of said microstrip circuit board, the remaining receptacles being located around said signal receptacle and constituting ground receptacles each having one end electrically connected to ground plane circuitry located on the opposite face of said microstrip circuit board, a second housing member having the end of a coaxial cable connected thereto, said second housing member having. a plurality of pins extending outwardly therefrom, only one of said pins constituting a signal pin and having one end thereof electrically connected to the signal conductor in said coaxial cable, the remaining pins being located around said signal pin and constituting ground pins each having one end, electrically connected to the ground plane or shield of the coaxial cable, whereby said receptacles will receive said pins allowing for a matched impedance electrical connection.

2. An electrical connection for matching impedance between first and second microstrip circuit boards, each microstrip circuit board having electrically conductive ground plane circuitry located on one side thereof and at least one electrically conductive signal circuit located on the opposite side thereof, said first circuit board having one pin and said second circuit board having one receptacle in electrical engagement with respective signal circuitry thereon, said first circuit board having a plurality of pins in electrical engagement with said ground plane circuitry thereon and in surrounding relationship to said one pin, and said second circuit board having a plurality of receptacles in electrical engagement with said ground plane circuitry thereon and in surrounding relationship to said one receptacle, first and second dielectric housing members in respective engagement with said first and second circuit boards and respectively housing said pins and receptacles, the radial spacing of said pin and receptacle relative to said surrounding plurality of pins and receptacles, and the number of said plurality of pins and receptacles being predetermined so as to achieve a matched impedance connection between said circuit boards.

3. An electrical connection as set forth in claim 2 wherein each circuit board and respective connector includes a plurality of signal circuits including respectively, signal pins and receptacles, each respective signal pin and signal receptacle being surrounded by a plurality, respectively, of ground plane pins and sockets, the number of ground plane pins and sockets being determined by the level of crosstalk desired between adjacent signal circuits.

4. An electrical connection as set forth in claim 3 wherein each signal pin and receptacle of two adjacent circuits share some of the respective surrounding ground plane pins and sockets at the expense of higher crosstalk.

Claims (4)

1. An electrical connection for making matched impedance connection between a microstrip circuit board and a coaxial cable conductor, said connector comprising a first housing member connected to said microstrip circuit board and having a plurality of receptacles therein, at least one of said receptacles constituting a signal receptacle and having one end electrically connected to signal circuitry located on one face of said microstrip circuit board, the remaining receptacles being located around said signal receptacle and constituting ground receptacles each having one end electrically connected to ground plane circuitry located on the opposite face of said microstrip circuit board, a second housing member having the end of a coaxial cable connected thereto, said second housing member having a plurality of pins extending outwardly therefrom, only one of said pins constituting a signal pin and having one end thereof electrically connected to the signal conductor in said coaxial cable, the remaining pins being located around said signal pin and constituting ground pins each having one end electrically connected to the ground plane or shield of the coaxial cable, whereby said receptacles will receive said pins allowing for a matched impedance electrical connection.
2. An electrical connection for matching impedance between first and second microstrip circuit boards, each microstrip circuit board having electrically conductive ground plane circuitry located on one side thereof and at least one electrically conductive signal circuit located on the opposite side thereof, said first circuit board having one pin and said second circuit board having one receptacle in electrical engagement with respective signal circuitry thereon, said first circuit board having a plurality of pins in electrical engagement with said ground plane circuitry thereon and in surrounding relationship to said one pin, and said second circuit board having a plurality of receptacles in electrical engagement with said ground plane circuitry thereon and in surrounding relationship to said one receptacle, first and second dielectric housing members in respective engagement with said first and second circuit boards and respectively housing said pins and receptacles, the radial spacing of said pin and receptacle relative to said surrounding plurality of pins and receptacles, and the number of said plurality of pins and receptacles being predetermined so as to achieve a matched impedance connection between said circuit boards.
3. An electrical connection as set forth in claim 2 wherein each circuit board and respective connector includes a plurality of signal circuits including respectively, signal pins and receptacles, each respective signal pin and signal receptacle being surrounded by a plurality, respectively, of ground plane pins and sockets, the number of ground plane pins and sockets being determined by the level of crosstalk desired between adjacent signal circuits.
4. An electrical connection as set forth in claim 3 wherein each signal pin and receptacle of two adjacent circuits share some of the respective surrounding ground plane pins and sockets at the expense of higher crosstalk.
US3643201A 1970-02-09 1970-02-09 Impedance matching microstrip connector Expired - Lifetime US3643201A (en)

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JP (1) JPS5331273B1 (en)
BE (1) BE762669A (en)
DE (1) DE2104057A1 (en)
ES (1) ES387879A1 (en)
FR (1) FR2078323A5 (en)
GB (1) GB1280794A (en)
NL (1) NL151574B (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865452A (en) * 1973-08-01 1975-02-11 Ind Electronic Hardware Corp Spark gap protection in cathode ray tube sockets
US3889129A (en) * 1972-09-22 1975-06-10 Siemens Ag Direct-current supply connector
DE2949013A1 (en) * 1979-12-06 1981-06-11 Licentia Gmbh Transition from a coaxial multi-pole connectors to a
US4308891A (en) * 1980-03-31 1982-01-05 Double A Products Co. Terminal blocks and indicator for solenoid valves
US4398783A (en) * 1981-06-22 1983-08-16 International Telephone & Telegraph Corporation Coaxial cable connector
WO1984002631A1 (en) * 1982-12-29 1984-07-05 Western Electric Co Semiconductor chip package
US4494308A (en) * 1981-07-25 1985-01-22 Kabelmetal Electro Gmbh Connecting a cable to a P.C. board
EP0145083A2 (en) * 1983-12-02 1985-06-19 E.I. Du Pont De Nemours And Company Electrical connector using a flexible circuit having an impedance control arrangement thereon
US4600256A (en) * 1984-12-31 1986-07-15 Motorola, Inc. Condensed profile electrical connector
US4610495A (en) * 1985-03-07 1986-09-09 Rogers Corporation Solderless connector apparatus and method of making the same
US4664458A (en) * 1985-09-19 1987-05-12 C W Industries Printed circuit board connector
EP0243021A1 (en) * 1986-04-21 1987-10-28 Micro Component Technology, Inc. Impedance matching means
US4747787A (en) * 1987-03-09 1988-05-31 Amp Incorporated Ribbon cable connector
US4755147A (en) * 1986-05-20 1988-07-05 Control Data Corporation Flex head connector with ground plane
US4762500A (en) * 1986-12-04 1988-08-09 Amp Incorporated Impedance matched electrical connector
EP0288081A2 (en) * 1987-04-23 1988-10-26 W.L. Gore & Associates GmbH Screening for electrical connectors
EP0291620A2 (en) * 1986-05-19 1988-11-23 United Technologies Corporation Solderless, pushdown connectors for rf and dc
US4839587A (en) * 1988-03-29 1989-06-13 Digital Equipment Corporation Test fixture for tab circuits and devices
EP0418045A1 (en) * 1989-09-12 1991-03-20 Nec Corporation Coaxial pin connector having an array of conductive hollow cylindrical structures
US5040998A (en) * 1989-04-20 1991-08-20 Japan Aviation Electronics Industry Limited Plug connector for microstrip line
US5118300A (en) * 1991-05-23 1992-06-02 Amp Incorporated Active electrical connector
US5882227A (en) * 1997-09-17 1999-03-16 Intercon Systems, Inc. Controlled impedance connector block
WO1999056352A2 (en) * 1998-04-29 1999-11-04 Litton Systems, Inc. High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
US6267625B1 (en) 1999-04-21 2001-07-31 Litton Systems, Inc. High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
US6447339B1 (en) * 2001-12-12 2002-09-10 Tektronix, Inc. Adapter for a multi-channel signal probe
US20090268749A1 (en) * 2000-03-06 2009-10-29 Juniper Networks, Inc. Enhanced cmts for reliability, availability, and serviceability
EP2175526A1 (en) * 2008-10-13 2010-04-14 Tyco Electronics Corporation Connector assembly having signal and coaxial contacts
US20120077381A1 (en) * 2010-09-23 2012-03-29 Tyco Electronics Corporation Press fit cable connector
US20130040499A1 (en) * 2011-08-10 2013-02-14 Hon Hai Precision Industry Co., Ltd. Electrical connector with different contacts sharing a same soldering leg
US20150255927A1 (en) * 2012-09-28 2015-09-10 Molex Incorporated Electric connector

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130021B (en) * 1982-11-12 1986-03-12 Teradyne Inc Electrically connecting printed circuit boards
JPS60110952U (en) * 1983-12-28 1985-07-27
DE3511344A1 (en) * 1985-03-28 1986-10-02 Siemens Ag Plug connector for rear-wall wiring devices
GB2189652B (en) * 1986-03-26 1990-01-24 Plessey Co Plc Adaptor for connecting a coaxial transmission line to a parallel plate transmission medium
US5189638A (en) * 1990-04-26 1993-02-23 Mitsubishi Denki Kabushiki Kaisha Portable semiconductor memory device
DE4036081C2 (en) * 1990-04-26 1994-10-06 Mitsubishi Electric Corp Semiconductor memory expansion module
US6139364A (en) * 1995-09-08 2000-10-31 Motorola, Inc. Apparatus for coupling RF signals
WO2004006391A1 (en) * 2002-07-05 2004-01-15 Huber+Suhner Ag Microwave connector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179912A (en) * 1963-02-08 1965-04-20 Amp Inc Coaxial connector for printed circuit board
US3509513A (en) * 1968-03-27 1970-04-28 Ibm Cables connecting assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179912A (en) * 1963-02-08 1965-04-20 Amp Inc Coaxial connector for printed circuit board
US3509513A (en) * 1968-03-27 1970-04-28 Ibm Cables connecting assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM Technical Disclosure Bulletin, High Density Printed Circuit Connector, by R. W. Callaway, W. Radzelovage, W. K. Springfield and B. E. Stevens, Vol. 8, No. 3, August 1965, p. 351. *

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889129A (en) * 1972-09-22 1975-06-10 Siemens Ag Direct-current supply connector
US3865452A (en) * 1973-08-01 1975-02-11 Ind Electronic Hardware Corp Spark gap protection in cathode ray tube sockets
DE2949013A1 (en) * 1979-12-06 1981-06-11 Licentia Gmbh Transition from a coaxial multi-pole connectors to a
US4335364A (en) * 1979-12-06 1982-06-15 Licentia Patent-Verwaltungs-Gmbh Transition from a coaxial cable to a multipole plug-in connector
US4308891A (en) * 1980-03-31 1982-01-05 Double A Products Co. Terminal blocks and indicator for solenoid valves
US4398783A (en) * 1981-06-22 1983-08-16 International Telephone & Telegraph Corporation Coaxial cable connector
US4494308A (en) * 1981-07-25 1985-01-22 Kabelmetal Electro Gmbh Connecting a cable to a P.C. board
WO1984002631A1 (en) * 1982-12-29 1984-07-05 Western Electric Co Semiconductor chip package
US4498122A (en) * 1982-12-29 1985-02-05 At&T Bell Laboratories High-speed, high pin-out LSI chip package
EP0145083A2 (en) * 1983-12-02 1985-06-19 E.I. Du Pont De Nemours And Company Electrical connector using a flexible circuit having an impedance control arrangement thereon
US4552420A (en) * 1983-12-02 1985-11-12 E. I. Du Pont De Nemours And Company Electrical connector using a flexible circuit having an impedance control arrangement thereon
EP0145083A3 (en) * 1983-12-02 1987-07-29 E.I. Du Pont De Nemours And Company Electrical connector using a flexible circuit having an impedance control arrangement thereon
US4600256A (en) * 1984-12-31 1986-07-15 Motorola, Inc. Condensed profile electrical connector
US4610495A (en) * 1985-03-07 1986-09-09 Rogers Corporation Solderless connector apparatus and method of making the same
US4664458A (en) * 1985-09-19 1987-05-12 C W Industries Printed circuit board connector
EP0243021A1 (en) * 1986-04-21 1987-10-28 Micro Component Technology, Inc. Impedance matching means
EP0291620A3 (en) * 1986-05-19 1989-11-29 United Technologies Corporation Solderless, pushdown connectors for rf and dc
EP0291620A2 (en) * 1986-05-19 1988-11-23 United Technologies Corporation Solderless, pushdown connectors for rf and dc
US4755147A (en) * 1986-05-20 1988-07-05 Control Data Corporation Flex head connector with ground plane
US4762500A (en) * 1986-12-04 1988-08-09 Amp Incorporated Impedance matched electrical connector
US4747787A (en) * 1987-03-09 1988-05-31 Amp Incorporated Ribbon cable connector
EP0288081A2 (en) * 1987-04-23 1988-10-26 W.L. Gore & Associates GmbH Screening for electrical connectors
EP0288081A3 (en) * 1987-04-23 1989-03-15 W.L. Gore & Associates GmbH Screening for electrical connectors
US4839587A (en) * 1988-03-29 1989-06-13 Digital Equipment Corporation Test fixture for tab circuits and devices
US5040998A (en) * 1989-04-20 1991-08-20 Japan Aviation Electronics Industry Limited Plug connector for microstrip line
EP0418045A1 (en) * 1989-09-12 1991-03-20 Nec Corporation Coaxial pin connector having an array of conductive hollow cylindrical structures
US5118300A (en) * 1991-05-23 1992-06-02 Amp Incorporated Active electrical connector
US5882227A (en) * 1997-09-17 1999-03-16 Intercon Systems, Inc. Controlled impedance connector block
US6206729B1 (en) 1998-04-29 2001-03-27 Litton Systems, Inc. High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
WO1999056352A2 (en) * 1998-04-29 1999-11-04 Litton Systems, Inc. High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
WO1999056352A3 (en) * 1998-04-29 2000-02-03 Litton Systems Inc High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
US6179663B1 (en) 1998-04-29 2001-01-30 Litton Systems, Inc. High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
GB2353908B (en) * 1998-04-29 2002-08-07 Litton Systems Inc High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
GB2353908A (en) * 1998-04-29 2001-03-07 Litton Systems Inc High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
US6267625B1 (en) 1999-04-21 2001-07-31 Litton Systems, Inc. High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
US7953125B2 (en) * 2000-03-06 2011-05-31 Juniper Networks, Inc. Enhanced CMTS for reliability, availability, and serviceability
US20110200055A1 (en) * 2000-03-06 2011-08-18 Juniper Networks, Inc. Enhanced cmts for reliability, availability, and serviceability
US20090268749A1 (en) * 2000-03-06 2009-10-29 Juniper Networks, Inc. Enhanced cmts for reliability, availability, and serviceability
US6447339B1 (en) * 2001-12-12 2002-09-10 Tektronix, Inc. Adapter for a multi-channel signal probe
US7867032B2 (en) 2008-10-13 2011-01-11 Tyco Electronics Corporation Connector assembly having signal and coaxial contacts
US20100093189A1 (en) * 2008-10-13 2010-04-15 Tyco Electronics Corporation Connector assembly having signal and coaxial contacts
EP2175526A1 (en) * 2008-10-13 2010-04-14 Tyco Electronics Corporation Connector assembly having signal and coaxial contacts
US20120077381A1 (en) * 2010-09-23 2012-03-29 Tyco Electronics Corporation Press fit cable connector
US8202121B2 (en) * 2010-09-23 2012-06-19 Tyco Electronics Corporation Press fit cable connector
US20130040499A1 (en) * 2011-08-10 2013-02-14 Hon Hai Precision Industry Co., Ltd. Electrical connector with different contacts sharing a same soldering leg
US8708753B2 (en) * 2011-08-10 2014-04-29 Hon Hai Precision Industry Co., Ltd. Electrical connector with different contacts sharing a same soldering leg
US20150255927A1 (en) * 2012-09-28 2015-09-10 Molex Incorporated Electric connector
US9590358B2 (en) * 2012-09-28 2017-03-07 Molex, Llc Electrical connector having staggered pins

Also Published As

Publication number Publication date Type
GB1280794A (en) 1972-07-05 application
NL7101204A (en) 1971-08-11 application
DE2104057A1 (en) 1971-08-19 application
BE762669A1 (en) grant
BE762669A (en) 1971-08-09 grant
JPS5331273B1 (en) 1978-09-01 grant
NL151574B (en) 1976-11-15 application
FR2078323A5 (en) 1971-11-05 application
ES387879A1 (en) 1973-05-16 application

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