FR2918507A1 - Connector for providing micro frequency connection, has connection units connecting central emissive conducting connection element to central exiting line and peripheral ground connection elements to peripheral coaxial ground element - Google Patents

Connector for providing micro frequency connection, has connection units connecting central emissive conducting connection element to central exiting line and peripheral ground connection elements to peripheral coaxial ground element Download PDF

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Publication number
FR2918507A1
FR2918507A1 FR0704908A FR0704908A FR2918507A1 FR 2918507 A1 FR2918507 A1 FR 2918507A1 FR 0704908 A FR0704908 A FR 0704908A FR 0704908 A FR0704908 A FR 0704908A FR 2918507 A1 FR2918507 A1 FR 2918507A1
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FR
France
Prior art keywords
connector
central
element
connection
peripheral
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.)
Granted
Application number
FR0704908A
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French (fr)
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FR2918507B1 (en
Inventor
Sylvie Touchard
Eric Tanguy
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.)
Alliance Technique Industrielle
Thales SA
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Alliance Technique Industrielle
Thales SA
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Publication date
Application filed by Alliance Technique Industrielle, Thales SA filed Critical Alliance Technique Industrielle
Priority to FR0704908A priority Critical patent/FR2918507B1/en
Publication of FR2918507A1 publication Critical patent/FR2918507A1/en
Application granted granted Critical
Publication of FR2918507B1 publication Critical patent/FR2918507B1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/22Contacts for co-operating by abutting
    • H01R13/24Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646Details 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
    • H01R13/6461Means for preventing cross-talk
    • H01R13/6471Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646Details 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
    • H01R13/6473Impedance matching
    • H01R13/6477Impedance matching by variation of dielectric properties
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural 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
    • H01R9/03Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0527Connection to outer conductor by action of a resilient member, e.g. spring

Abstract

The connector has a central emissive conducting connection element (Cs1) and peripheral ground connection elements. A coaxial element presents a central exiting line (Ls1) and a peripheral coaxial ground element. The connection units respectively connect the central emissive conducting connection element to the central exiting line and the peripheral ground connection elements to the peripheral coaxial ground element. An external peripheral joint (J1) reinforces the sealing of the connector. A dielectric part is made of Teflon(RTM: PTFE).

Description

Connector for microwave elements The invention relates to a

  connector for microwave elements and in particular an antenna connector for providing the microwave link between radiating elements and transmission / reception modules. In general, a significant part of the cost of an antenna comes from the connectors connecting the microwave elements (radiating elements, transmitters or receivers) between them. This function is essential otherwise the operation is not possible since it is not possible to connect the radiating elements of the transmitters and / or receivers in the antenna. It is difficult to achieve because of the mechanical constraints, the environment, temperature and vibration resistance of all the elements connected to each other, and their number. It is not proposed to date a connector that operates both in the microwave frequency bands and accepts radial and axial tolerances of several millimeters. Typical solutions are to fabricate a complex mechanical part around the connector to compensate for these tolerances. Such a method is cumbersome and expensive, since the connection only works when the mechanical support is made with great precision. Thanks to a clever combination of mechanical elements and microwave elements, the invention proposes a new connector for microwave operation, ensuring a perfect connection of the elements, while avoiding major mechanical constraints such as large axial tolerances. and radial. More specifically, the subject of the invention is a connector for microwave elements comprising at least one central emissive connecting element and peripheral mass connection elements, characterized in that it further comprises: a coaxial cable having a central exciter line and at least one peripheral coaxial mass element; first connection means and second connection means for respectively connecting the central emissive connecting element to the central exciter line and the peripheral mass connection elements to the peripheral ground coaxial element. One can advantageously perform a calculation of the impedance of the connector which is a function of the diameter of the central conducting element and the position of the mass elements located around. This therefore sets, from the permittivity of the material, the distance of the mass elements from the central element. According to a variant of the invention, the central emissive connecting element and the peripheral mass connection elements are pistons. According to a variant of the invention, the connector further comprises a spring mounted on the coaxial cable to increase the degree of axial and radial tolerance of said connector. According to one variant of the invention, the connector comprises a first external peripheral seal making it possible to reinforce the tightness of said connector. According to a variant of the invention, the connector comprises a second external peripheral seal making it possible to ensure electromagnetic compatibility by rendering said insulating joint to frequency bands other than those of use of the component (for example an antenna) for which the connector is intended. According to a variant of the invention, the connector comprises an impedance matching conducting portion in which the junction between the emissive conductive central element and the coaxial transmitting line is embedded. According to a variant of the invention, the connector comprises a dielectric part in which are integrated the emissive conductive central element and the peripheral mass elements. Advantageously this dielectric part may be Teflon. Advantageously, the connector can be used both for transmission and reception.

  The invention will be better understood and other advantages will become apparent on reading the following description given by way of non-limiting example and with reference to the appended figures in which: FIGS. 1a and 1b illustrate a perspective view and a view in section of a first example of connector according to the invention; FIG. 2 illustrates an exploded view of the assembly comprising the conductive central emissive element of connection and the peripheral elements of ground connection and of the coaxial cable; FIGS. 3a, 3b, 3c and 3d illustrate partial views of constituent parts of the example of connector schematized in FIGS. 1a and 1b; FIGS. 4a and 4b respectively show the evolution of the parameters S12 (relating to the transmission) and S11 (relative to the reflection) as a function of the frequency for an exemplary connector according to the invention. In general, the connector for microwave elements that is particularly important in the antenna addressing frame advantageously comprises piston-type connection elements that are easily interfaceable with the elements of a radiating surface. Thus according to the invention, to avoid an additional piece and mechanical assembly at the connector, the proposed solution is based on piston-type means still commonly called spring loaded contact (SLC) in English, as microwave connection points signal and ground integrated in a dielectric; this avoids the soldering of the connectors on the tracks of the printed circuits and makes it possible to optimize the number of connection points in order to have a good microwave transmission of the signal and a good mass contact; spring-type means behind the pistons to increase the radial and axial tolerances, thus making it possible to have a degree of freedom of the microwave systems 10 to be assembled to be within a tolerance of a few millimeters. The example illustrated in FIGS. 1a and 1b highlights this combination of means. For this purpose a first part PI comprises a central element Csi, surrounded by peripheral connection elements CM ,, these various elements are integrated in an insulating dielectric material MI. According to the invention, all these elements are connected to a coaxial cable P2. More specifically, the emissive conductive central element Csi is connected to the coaxial central line Lsi, the connection elements CM, are connected to the ground of the coaxial cable, corresponding to its peripheral surface. Advantageously, the portion P2 may be secured to a portion P'2 having a bend to facilitate the attachment of the connector on a surface of transmitter / receiver elements. FIG. 2 shows an exploded view of the parts P1 and P2, the P1 part advantageously comprising elements of pistons and spring type, the part P2 comprising the coaxial cable as detailed below. FIGS. 3a, 3b, 3c and 3d show various exploded portions highlighting the constituent elements of an exemplary connector according to the invention, namely: a spring RI; the excitation line Lsi of the coaxial cable; the piston Csi embedded in an impedance matching material M2 an O-ring J ~ in the mechanical part of the connector 25 to ensure the sealing function thereof, therefore the microwave link. The connector is thus designed to always have the connection between the microwave elements. This is ensured by the permanent compression of the pistons on the object such as a microwave circuit, the spring housing the variations or mechanical tolerances. The fact of not having to solder the connectors has the considerable advantage of not overheating, or temperature rise of the elements to be connected. In particular, microwave printed circuits are quite sensitive to temperature rises in the component weld range. High solder temperature can result in destruction of these circuits.

  A second additional seal J2 may also be provided to ensure electromagnetic compatibility by rendering said insulating joint to frequency bands other than those of operation of the antenna for which the connector is intended.

  Thus, the combination of the spring and a coaxial cable makes it possible to have a connection assembly of great length giving a greater degree of connection flexibility. The measurements illustrated in FIGS. 4a and 4b show that the portion of the connector excluding the cable has very few losses (s12 <0.1 dB), and is very well adapted (s11 <-35dB).

Example of realization:

  Typically according to this example, the portion PI may have a length of about 35 mm, the cable portion having the side a, M2 material may be of the order of 1.6 mm, the length a2 of the central element Csi Piston type can be of the order of 11 mm, its diameter (DI being of the order of 1.7 mm) As illustrated in FIG. 3b, the impedance matching between the excitation line Ls1 and the piston Csi can This part M1 is worked in order to be able to integrate the excitation line Lsi, for this a cylindrical structure is perforated on two different diameters, di and d2 being respectively able to be made in a piece MI of length a4 of the order of 12.4 mm. 3 mm and 1.65 mm, the narrowest part may have a length of about 2.2 mm The diameter d3 of the piece MI may be typically of the order of 6 mm.

  Advantageously, the MI material is Teflon material M2 is conductive material may be copper, associated for example with nickel and gold. More generally, it can be a metal protected by gilding.

Claims (8)

  1. Connector for microwave elements comprising at least one central emissive connecting element (Cs1) and peripheral mass connection elements (Cm), characterized in that it further comprises: - a coaxial element having a central exciter line (Ls1) and at least one peripheral mass coaxial element; first connecting means and second connecting means for respectively connecting the central emissive connecting element to the central exciter line and the peripheral mass connecting elements to the peripheral ground coaxial element.
  2. Connector for microwave elements according to claim 1, characterized in that the central conductive emissive element connecting and peripheral mass connection elements are pistons.
  3. Connector for microwave elements according to one of claims 1 or 2, characterized in that it further comprises a spring (RI) mounted on the coaxial element to increase the degree of axial and radial tolerance of said connector.
  4. Connector for microwave elements according to one of claims 1 to 3, characterized in that it comprises a first outer peripheral seal (JI) for reinforcing the sealing of said connector.
  5. Connector for microwave elements according to one of claims 1 to 4, characterized in that it comprises a second outer peripheral seal (J2) for ensuring electromagnetic compatibility by rendering said seal. insulation to frequency bands other than those of operation of the antenna for which the connector is intended. 5 10 15
  6. Connector for microwave elements according to one of claims 1 to 5, characterized in that it comprises a conductive impedance matching portion (M2) in which is embedded the junction between the emissive piston and the coaxial emitter line .
  7. Connector for microwave elements according to one of claims 1 to 6, characterized in that it comprises a dielectric part in which are integrated the central emissive piston and ground pistons (MI).
  8. Connector for microwave elements according to claim 7, characterized in that the dielectric part is Teflon. 20
FR0704908A 2007-07-06 2007-07-06 Connector for microwave elements Active FR2918507B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0704908A FR2918507B1 (en) 2007-07-06 2007-07-06 Connector for microwave elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0704908A FR2918507B1 (en) 2007-07-06 2007-07-06 Connector for microwave elements

Publications (2)

Publication Number Publication Date
FR2918507A1 true FR2918507A1 (en) 2009-01-09
FR2918507B1 FR2918507B1 (en) 2009-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR0704908A Active FR2918507B1 (en) 2007-07-06 2007-07-06 Connector for microwave elements

Country Status (1)

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FR (1) FR2918507B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343848A2 (en) * 1988-05-27 1989-11-29 Nokia Mobile Phones (U.K.) Limited Antenna assembly
US6053777A (en) * 1998-01-05 2000-04-25 Rika Electronics International, Inc. Coaxial contact assembly apparatus
US20030062914A1 (en) * 2001-09-28 2003-04-03 Cosmin Iorga Surface mating compliant contact assembly with fixed signal path length
DE20121748U1 (en) * 2001-03-21 2003-05-22 Audioton Kabelwerk Gmbh Coaxial connection device for use with high-frequency line, has first and second connection elements in continuous electrical contact without interlocking to form coaxial connection
US6776668B1 (en) * 2003-08-01 2004-08-17 Tyco Electronics Corporation Low profile coaxial board-to-board connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343848A2 (en) * 1988-05-27 1989-11-29 Nokia Mobile Phones (U.K.) Limited Antenna assembly
US6053777A (en) * 1998-01-05 2000-04-25 Rika Electronics International, Inc. Coaxial contact assembly apparatus
DE20121748U1 (en) * 2001-03-21 2003-05-22 Audioton Kabelwerk Gmbh Coaxial connection device for use with high-frequency line, has first and second connection elements in continuous electrical contact without interlocking to form coaxial connection
US20030062914A1 (en) * 2001-09-28 2003-04-03 Cosmin Iorga Surface mating compliant contact assembly with fixed signal path length
US6776668B1 (en) * 2003-08-01 2004-08-17 Tyco Electronics Corporation Low profile coaxial board-to-board connector

Also Published As

Publication number Publication date
FR2918507B1 (en) 2009-11-20

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