EP0160423A2 - Koaxialer Verbinder für Übertragungsleitungen mit gesteuerter Impedanz - Google Patents

Koaxialer Verbinder für Übertragungsleitungen mit gesteuerter Impedanz Download PDF

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Publication number
EP0160423A2
EP0160423A2 EP85302407A EP85302407A EP0160423A2 EP 0160423 A2 EP0160423 A2 EP 0160423A2 EP 85302407 A EP85302407 A EP 85302407A EP 85302407 A EP85302407 A EP 85302407A EP 0160423 A2 EP0160423 A2 EP 0160423A2
Authority
EP
European Patent Office
Prior art keywords
connector
hole
radio frequency
wiring
pin
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Withdrawn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
EP85302407A
Other languages
English (en)
French (fr)
Other versions
EP0160423A3 (de
Inventor
Charles K. Whipple
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.)
Fluke Corp
Original Assignee
John Fluke Manufacturing Co Inc
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 John Fluke Manufacturing Co Inc filed Critical John Fluke Manufacturing Co Inc
Publication of EP0160423A2 publication Critical patent/EP0160423A2/de
Publication of EP0160423A3 publication Critical patent/EP0160423A3/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H01P3/081—Microstriplines
    • 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 present invention relates generally to wiring board connectors and more particularly to a connector which is used to interconnect a plurality of wiring boards where a conductive housing separates the wiring boards for shielding purposes and it is desirable to maintain the radio frequency impedance constant from one wiring board through the housing to another wiring board.
  • the present invention provides apparatus for making direct coaxial transitions between controlled impedance transmission lines, such as strip lines or microstrips, on separate wiring boards.
  • the present invention further provides an easily connected and disconnected connector.
  • the present invention further provides a connector wherein the conductor diameter is matched with the dielectric diameter to obtain a desired characteristic impedance.
  • the present invention further provides a connector providing excellent radio frequency shielding characteristics between wiring boards separated by radio frequency shields.
  • the present invention further provides a connector having good voltage standing wave ratios (VSFR) at high frequencies.
  • VSFR voltage standing wave ratios
  • the present invention further provides a low-cost, compact connector.
  • the present invention further provides a coaxial connector which does not require a solid dielectric material and thus avoids the transmission loss associated with most solid dielectric materials.
  • a first wiring board 10 having a controlled impedance transmission line of the type referred to as a microstrip and designated as first microstrip 12, provided thereon on one side and a ground plane 14 provided on the other.
  • the first wiring board 10 is secured by a screw 16 to a boss 18 on a conductive housing 20.
  • the first wiring board 10 is disposed in a first opening 22 of the housing 20 and covered by a conductive cover 23.
  • a second wiring board 24 is disposed in a second opening 26 of the housing 20 and covered by a conductive cover 27.
  • the second wiring board 24 has provided thereon a second microstrip 28 on one side and a ground plane 30 on the opposite side thereof.
  • the second circuit board is held against a boss 32 of the housing 20 by a screw 34.
  • microstrips 12 and 28 are connected by a microstrip to microstrip connector 36 which extends between the first and second openings 22 and 26, respectively, via a through-hole 38.
  • the microstrip to microstrip connector 36 consists of three main parts.
  • the first part is a female connector 40 having a male thread at one end 42.
  • the female connector 40 is secured to the first wiring board 10 by pins 41 (only one shown) which extend through the wiring board 10 and are held in place by solder joint 43. It contains a cylindrical dielectric 44 which coaxially surrounds a conductor 46 which extends through the first wiring board 10 and is soldered at solder joint 47 to the first microstrip 12.
  • the first wiring board 10 is held to the housing 20 by means of a lockwasher 48 and nut 49 which is screwed onto the male thread 42 to make the female connector 40 act as a holding bolt.
  • the second part is a male cable connector 50 having a female thread 52 in which the male thread 42 of the female connector 40 is threaded.
  • the male cable connector 50 contains a dielectric 54 which coaxially surrounds conductor 56 which extends into a cup 58 of the connector 46.
  • the conductor 56 itself has a cup 60.
  • the third portion of the microstrip to microstrip connector 36 is a coaxial cable 62 which is inserted into a stem portion 63 of the female cable connector 50 which contains barbs 65.
  • the coaxial cable 62 contains a coaxial cylindrical ground conductor 64 which is contained between coaxial, cylindrical inner and outer dielectrics 66 and 68, respectively, which further encircle a coaxial cable conductor 70.
  • the coaxial cable 62 is assembled with the male cable connector 50 by being inserted in the stem 63 and having the stem 63 crimped around one end of the coaxial cable 62 so as to have barbs 65 pierce the outer dielectric 66 and conductively contact the ground conductor 64.
  • the cable conductor 70 is engaged with the cup 60 of the female cable connector 50.
  • the end of the conductor 70 opposite the male connector 50 extends through the second wiring board 24, and is conductively connected at solder joint 71 to the second microstrip 28.
  • the ground conductor 64 in the coaxial cable 62 is connected to the ground plane 30 on the second wiring board 24 by solder joint 72.
  • the ground plane 14 is connected by the female connector 40 to the male connector 50 which has barbs 65 engaging the ground conductor 64 which in turn is conductively connected to the ground plane 30 via the solder joint 72.
  • a first wiring board 100 having a first microstrip 101 on one side and a ground plane 102 on the other.
  • the first wiring board 100 carries a pin 104 extending therethrough which is conductively connected by solder 106 to the first microstrip 101 and which has a diameter "d".
  • the first wiring board 100 is connected by a screw 108 to provide good ground to a boss 110 which is part of a housing 112.
  • the housing 112 has a first opening 114 and a second opening 116 into which a boss 111 extends.
  • the first and second openings 114 and 116 are connected by a through hole 118 having a diameter of "D" which extends through the boss 110.
  • the ratio of the diameter of the hole 118 to the diameter of the pin 104 is substantially:
  • the first and second openings are covered by conductive housing covers 120 and 122, respectively.
  • a second wiring board 124 is disposed in the second opening 116 and is secured by a screw 126 to the boss 111.
  • the second wiring board has a second microstrip 128 on one side and a ground plane 130 on the other.
  • the second wiring board 124 carries a spring connector 132 which is conductively connected to the second microstrip 128 by solder 134.
  • the spring connector 132 slidingly engages the pin 104 to conductively connect the first and second microstrips 101 and 128, respectively.
  • a microstrip to microstrip connector 138 is shown consisting essentially of the pin 104 and the spring connector 132. It should be noted that the spring connector 132 may be of any conventional design manufactured by a number of electrical connector manufacturers.
  • the desired characteristic impedance of the microstrip to microstrip connector 138 is achieved by virtue of controlling the diameter "D" of the through-bole 118 and using air as a dielectric.
  • this characteristic impedance is 50 ohms. If space is a problem a polymer dielectric could be inserted in the through-hole 118 so the dielectric constant would be higher and the diameter "D" could be made smaller.
  • the actual impedance is controlled by the ratio of "d" to "D" and either may be changed.
  • VSWR voltage standing wave ratio
  • MHZ frequency
  • the present invention may easily be installed and removed for servicing or replacement of either wiring board. Further, due to its simplicity, it is extremely economical.
  • controlled impedance transmission lines include strip lines and most other wiring board conductors in addition to microstrips.
EP85302407A 1984-04-11 1985-04-04 Koaxialer Verbinder für Übertragungsleitungen mit gesteuerter Impedanz Withdrawn EP0160423A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59907784A 1984-04-11 1984-04-11
US599077 1984-04-11

Publications (2)

Publication Number Publication Date
EP0160423A2 true EP0160423A2 (de) 1985-11-06
EP0160423A3 EP0160423A3 (de) 1987-05-13

Family

ID=24398114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85302407A Withdrawn EP0160423A3 (de) 1984-04-11 1985-04-04 Koaxialer Verbinder für Übertragungsleitungen mit gesteuerter Impedanz

Country Status (2)

Country Link
EP (1) EP0160423A3 (de)
JP (1) JPS60253180A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561328A2 (de) * 1992-03-16 1993-09-22 Trompeter Electronics Inc. Steckverbinderanordnung
EP0635910A2 (de) * 1993-07-22 1995-01-25 Molex Incorporated Elektrischer Steckverbinder
FR2854762A1 (fr) * 2003-05-07 2004-11-12 Wavecom Systeme electronique, circuit imprime et module de radiocommunication a connecteur coaxial et procede de montage correspondant
CN102931503A (zh) * 2012-11-15 2013-02-13 宁波环球广电科技有限公司 内胆讯号传输路径结构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303439A (en) * 1965-06-14 1967-02-07 Western Electric Co Strip transmission line interboard connection
US3517272A (en) * 1968-12-24 1970-06-23 Rca Corp Microwave circuit with coaxial package semiconductor device
US4506939A (en) * 1983-01-31 1985-03-26 General Electric Company Arrangement for connecting printed circuit boards

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL153745B (nl) * 1973-03-12 1977-06-15 Nederlanden Staat Hoogdoorlaatfilter.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303439A (en) * 1965-06-14 1967-02-07 Western Electric Co Strip transmission line interboard connection
US3517272A (en) * 1968-12-24 1970-06-23 Rca Corp Microwave circuit with coaxial package semiconductor device
US4506939A (en) * 1983-01-31 1985-03-26 General Electric Company Arrangement for connecting printed circuit boards

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561328A2 (de) * 1992-03-16 1993-09-22 Trompeter Electronics Inc. Steckverbinderanordnung
EP0561328A3 (de) * 1992-03-16 1994-01-12 Trompeter Electronics Inc
EP0635910A2 (de) * 1993-07-22 1995-01-25 Molex Incorporated Elektrischer Steckverbinder
EP0635910A3 (de) * 1993-07-22 1996-06-26 Molex Inc Elektrischer Steckverbinder.
FR2854762A1 (fr) * 2003-05-07 2004-11-12 Wavecom Systeme electronique, circuit imprime et module de radiocommunication a connecteur coaxial et procede de montage correspondant
WO2004100316A2 (fr) * 2003-05-07 2004-11-18 Wavecom Systeme electronique, circuit imprime et module de radiocommunication a connecteur coaxial et procede de montage correspondant
WO2004100316A3 (fr) * 2003-05-07 2005-01-20 Wavecom Systeme electronique, circuit imprime et module de radiocommunication a connecteur coaxial et procede de montage correspondant
CN102931503A (zh) * 2012-11-15 2013-02-13 宁波环球广电科技有限公司 内胆讯号传输路径结构

Also Published As

Publication number Publication date
EP0160423A3 (de) 1987-05-13
JPS60253180A (ja) 1985-12-13
JPH0142118B2 (de) 1989-09-11

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Inventor name: WHIPPLE, CHARLES K.