EP1054473A2 - Connecteur coaxial à 50 ohms pour des fréquences radio - Google Patents

Connecteur coaxial à 50 ohms pour des fréquences radio Download PDF

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Publication number
EP1054473A2
EP1054473A2 EP00302059A EP00302059A EP1054473A2 EP 1054473 A2 EP1054473 A2 EP 1054473A2 EP 00302059 A EP00302059 A EP 00302059A EP 00302059 A EP00302059 A EP 00302059A EP 1054473 A2 EP1054473 A2 EP 1054473A2
Authority
EP
European Patent Office
Prior art keywords
connection
female
male
connector according
cable
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Withdrawn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
EP00302059A
Other languages
German (de)
English (en)
Other versions
EP1054473A3 (fr
Inventor
Manuel Perez
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.)
TRT Lucent Technologies SA
Original Assignee
TRT Lucent Technologies SA
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
Priority claimed from EP99460037A external-priority patent/EP1054474A1/fr
Application filed by TRT Lucent Technologies SA filed Critical TRT Lucent Technologies SA
Priority to EP00302059A priority Critical patent/EP1054473A3/fr
Publication of EP1054473A2 publication Critical patent/EP1054473A2/fr
Publication of EP1054473A3 publication Critical patent/EP1054473A3/fr
Withdrawn legal-status Critical Current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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing
    • 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
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/641—Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0521—Connection to outer conductor by action of a nut

Definitions

  • This invention relates to a 50 ⁇ connector for the connection of coaxial cables, designed specifically for radio transmission applications.
  • This connector was developed to satisfy a need arising in the field of cordless telephony.
  • This technology is currently growing quickly, according to which subscribers are connected by radio to a base station included in the network (DECT system).
  • a base station included in the network (DECT system).
  • an antenna is provided at the end of the subscriber's installation for communication with the base station (the RFP), and a subscriber unit (called the CTA) physically connected to the antenna.
  • this coaxial cable has the advantage that it has a relatively high performance within the useful radio frequency range, since its linear attenuation is about 0.3 dB/m.
  • the adaptation of the connection remains mediocre, with an average SWR (the ratio of transmitted power to reflected power) of the order of 19 dB.
  • This invention was made in order to satisfy this need as well as possible, with the twofold objective of low cost and good connection quality.
  • the invention consists of a 50 ⁇ coaxial connector for radio frequencies, characterized in that it comprises a female fixed connector part that will be fitted at the output from equipment such as an electronic unit, at the end of a coaxial cable from the said equipment, and a male connection part to an external coaxial cable, the female and male parts comprising tubular metallic bodies that lock one to the other by means of a nut and making the electrical connection of the peripheral conductors of the said coaxial cables, whereas the electrical connection between the central conductors in the coaxial cables is made by a pin of the male part cooperating with a tubular clamp in the female part, the connection end in the female part having an external chamfer, forced into contact with an annular surface at the end of the connection of the male part while locking.
  • figures 1a and 1b show overall views of a 50 ⁇ connector according to the invention, designed to connect an external coaxial cable C2 (50 ⁇ cable such as the reference mentioned above, the Bieffe S.R.L. CO150af) to a cable C1 inside a piece of equipment, for example a CTA subscriber unit in a telephone installation, in the connection between the CTA unit and the antenna.
  • an external coaxial cable C2 50 ⁇ cable such as the reference mentioned above, the Bieffe S.R.L. CO150af
  • the fixed connector type female part 1 is designed to be installed in a crossing through a wall. Therefore, its tubular metallic body 10 has a back collar 13 at its back end 11, and in front of the collar and all the way to the front connection end 12, there is an external thread on which an assembly nut 14 can be screwed, and a connection locking nut 55 that pertains to the male part 5 in this example.
  • the front end 12 of the body 10 has an outside chamfer 12a which terminates with a lip 12b surrounding the orifice of the bore 15 inside body 10.
  • the bore 15 has a first shoulder 16 at the back, and then a second shoulder 17 around an output orifice 18 at the back.
  • the volume of the bore 15 is fully occupied by a rear metallic fixed connector base 20, and a dielectric part 23 in front of the connector base.
  • the fixed connector base 20 fits intimately between the shoulder 16 with which it is in contact and the shoulder 17. Its rear part forms a connecting tail 21 passing through the orifice 18 and projecting axially backwards from body 10.
  • the fixed connector base 20, with its connecting tail 21, comprises an axial duct 22 with the same diameter as the internal dielectric of the coaxial cable C1 to be connected.
  • the dielectric part 23 at the front of the fixed connector base 20 in bore 15 is in contact with the shoulder 16. It is fixed in place by the lip 12b being crimped onto its front end. Its center comprises a bore in which a contact element 25 is inserted.
  • This element is a clamp, the front part of which is of the tubular type and which contains a plurality of extended jaws designed to provide a perfect quality contact with the corresponding element of the male part 5.
  • the dielectric inside the cable passes through the duct 22 in the fixed connector base 20 until it stops in contact with the back end of the contact clamp 25 that was crimped on the end of the internal conductor, the connecting tail 21 being slid into the peripheral conductor and the external casing fixed by means of a crimping sleeve 26.
  • the male part 5 comprises a tubular body 50 with an external collar 52 at its front connection end 51 and an internal return 53 defining an axial orifice 54 bordered on the outside by an annular transverse surface 51a.
  • the collar 52 acts as a stop for the base of the locking nut mentioned above 55, which is engaged free to rotate on body 50.
  • the rear part of the body 1 is shaped with peripheral steps, to form a connecting tail 56 for the peripheral conductor and the external casing of a cable C2 to be connected.
  • the connecting tail 56 is limited towards the front by a peripheral shoulder 57.
  • the body 50 On the inside, between the back end 58 and as far as the return 53, the body 50 has a bore 59 with a diameter corresponding to the inside diameter of the internal dielectric of the cable C2 to be connected. Most of the length of the bore 59 is empty, but at the back, in contact with the return 53 at the front, it contains a small dielectric part 60 that will support the axial contact element, in this case a pin 61, of which the front part 61a projecting on the outside is shaped to provide a maximum quality contact in the clamp 25 of the female part 1.
  • the overall shape of the dielectric part 60 is a thick ring fixed at the bottom of the bore 59 and defining an axial duct through which the pin 61 passes.
  • the rear tubular part 61b of the pin 61 has a larger cross-section than the cross-section of the front part 61a and is separated from it by a shoulder 61c.
  • the front part 61a of the pin 61 is engaged in the dielectric part 60 and the back wall of this dielectric part forms a support for shoulder 61c.
  • the internal conductor of the cable fits intimately into the back part 61b of pin 61, until the internal dielectric of the cable comes into contact with the back end of the pin, the back connection part 56 of the body 1 being slid into the peripheral conductor and the outside casing of the cable C2 finally blocked by a crimping sleeve 62.
  • connection part 56 of the body 50 at the front end are advantageously approximately in the same transverse plane, in order to enable and facilitate connection of cable C2 with the necessary precision to obtain the expected performances.
  • Figure 1b shows that despite the simplicity of the structure and the small number of parts in the male part 5, the assembly works together so that the only way to connect the cable is an optimum connection respecting the best conditions for the relative positions of the various elements.
  • connection quality is excellent both for internal conductors in the cables through the clamp-pin assembly and for their peripheral conductors through the fixed connector base 20, the body 10 of the female part and the body 50 of the male part, with an improved contact quality between the connection ends 12 and 51 due to the chamfer 12a on the end of the female part.
  • Figure 2 illustrates an improvement made to the male part 5 in figure 1b, this improvement consisting of designing the sleeve 62 as an integral part of the body 50, therefore defining a deep annular groove with the rear part forming a connecting tail 56, into which the peripheral conductor and the outside casing of cable C2 can fit.
  • the wall of the sleeve 62 advantageously has one or several small openings 62a near the front part, in other words at the bottom of the said groove, that acts as a visualization window to check that cable C2 is correctly installed when it is connected.
  • the front end 12 of the female part always has an outside chamfer 12a, but which in this case is extended by a straight internal return 12c instead of lips 12b in the example shown in figure 1b.
  • Parts inside the body 50 are then put into place starting from its back end, a crimping lip being enclosed on the rear edge of the fixed connector base 20 and fixing the assembly in place.
  • figure 3 also shows its locking nut 55 with a peripheral groove 55a in which a seal 65 will be fitted to make the seal between the chamfered surface 12a of the female part 1, and the plane annular surface of the end 51 of the male part 5.
  • the male part 5' also comprises sealing means at its back end in the form of a grommet.
  • the back part 56' of the body 50' is threaded so that the grommet nut 66' can be fitted onto it.
  • the inside bore 59' has a first shoulder 67' for fixing an annular part made of a dielectric 69' retaining the back end of pin 61', and a second shoulder 68' for packing behind the dielectric part 69', a connecting tail 70' separated from the body 50' but intimately fitting into it to provide good electrical continuity between them.
  • a free space is formed in the body 50' around the back part of the pin 61', between the front dielectric part 60' and the dielectric part 69'.
  • the front end of the connecting tail 70' fitted into the body 50' forms a collar limiting the connection part itself, and onto which the sealing ring 71' of the grommet fits.
  • the internal dielectric of the cable engaged in the connecting tail 70' comes into contact with the back surface of the dielectric part 69'.
  • the layout of the male part 5' is such that it is very easy to install cable C2 in the best possible way.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
EP00302059A 1999-05-19 2000-03-14 Connecteur coaxial à 50 ohms pour des fréquences radio Withdrawn EP1054473A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00302059A EP1054473A3 (fr) 1999-05-19 2000-03-14 Connecteur coaxial à 50 ohms pour des fréquences radio

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99460037 1999-05-19
EP99460037A EP1054474A1 (fr) 1999-05-19 1999-05-19 Connecteur coaxial 50 ohms pour radiofréquences
EP00302059A EP1054473A3 (fr) 1999-05-19 2000-03-14 Connecteur coaxial à 50 ohms pour des fréquences radio

Publications (2)

Publication Number Publication Date
EP1054473A2 true EP1054473A2 (fr) 2000-11-22
EP1054473A3 EP1054473A3 (fr) 2001-08-16

Family

ID=26073037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00302059A Withdrawn EP1054473A3 (fr) 1999-05-19 2000-03-14 Connecteur coaxial à 50 ohms pour des fréquences radio

Country Status (1)

Country Link
EP (1) EP1054473A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104716500A (zh) * 2013-12-13 2015-06-17 江西晶科光伏材料有限公司 插拔式光伏连接器
CN113809605A (zh) * 2021-09-17 2021-12-17 德尔特微波电子(南京)有限公司 一种带有轴向限位的射频同轴连接器端口

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5096444A (en) * 1991-01-03 1992-03-17 Regal Technologies, Ltd. Flat F-port connector
US5667405A (en) * 1994-03-21 1997-09-16 Holliday; Randall A. Coaxial cable connector for CATV systems
US5700160A (en) * 1996-11-19 1997-12-23 Super Group Co., Ltd. Electrical connector for interconnecting female and male contacts of cables
US5730622A (en) * 1996-06-06 1998-03-24 Adc Telecommunications, Inc. Coax connector
US5788511A (en) * 1996-03-11 1998-08-04 Rave Engineering Universal connector pad

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295076A (en) * 1964-08-17 1966-12-27 Bendix Corp Electrical connector means for coaxial cables and the like
US3828303A (en) * 1972-09-28 1974-08-06 Bunker Ramo Coaxial connector
US4534607A (en) * 1984-06-04 1985-08-13 Allied Corporation Connector assembly and coupling ring
FR2709607A1 (fr) * 1993-09-03 1995-03-10 Radiall Sa Connecteur électrique coaxial à verrouillage par vissage.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5096444A (en) * 1991-01-03 1992-03-17 Regal Technologies, Ltd. Flat F-port connector
US5667405A (en) * 1994-03-21 1997-09-16 Holliday; Randall A. Coaxial cable connector for CATV systems
US5788511A (en) * 1996-03-11 1998-08-04 Rave Engineering Universal connector pad
US5730622A (en) * 1996-06-06 1998-03-24 Adc Telecommunications, Inc. Coax connector
US5700160A (en) * 1996-11-19 1997-12-23 Super Group Co., Ltd. Electrical connector for interconnecting female and male contacts of cables

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104716500A (zh) * 2013-12-13 2015-06-17 江西晶科光伏材料有限公司 插拔式光伏连接器
CN113809605A (zh) * 2021-09-17 2021-12-17 德尔特微波电子(南京)有限公司 一种带有轴向限位的射频同轴连接器端口

Also Published As

Publication number Publication date
EP1054473A3 (fr) 2001-08-16

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