EP4184728A1 - Connecteur rf pour contacter une carte de circuit imprimé - Google Patents

Connecteur rf pour contacter une carte de circuit imprimé Download PDF

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Publication number
EP4184728A1
EP4184728A1 EP21208997.3A EP21208997A EP4184728A1 EP 4184728 A1 EP4184728 A1 EP 4184728A1 EP 21208997 A EP21208997 A EP 21208997A EP 4184728 A1 EP4184728 A1 EP 4184728A1
Authority
EP
European Patent Office
Prior art keywords
socket
diameter
port flange
connector
port
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.)
Pending
Application number
EP21208997.3A
Other languages
German (de)
English (en)
Inventor
Markus Leipold
Florian Huber
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.)
Rohde and Schwarz GmbH and Co KG
Original Assignee
Rohde and Schwarz GmbH and Co KG
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 Rohde and Schwarz GmbH and Co KG filed Critical Rohde and Schwarz GmbH and Co KG
Priority to EP21208997.3A priority Critical patent/EP4184728A1/fr
Publication of EP4184728A1 publication Critical patent/EP4184728A1/fr
Pending 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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/50—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/52—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted in or to a panel or structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/54—Intermediate parts, e.g. adapters, splitters or elbows
    • H01R24/542—Adapters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • the present invention relates to an RF connector for contacting a printed circuit board.
  • Radio frequency (RF) connectors can be mounted to printed circuit boards (PCB) of electronic devices, e.g. measurement instruments, in order to contact the respective apparatus with coaxial cables or the like.
  • PCB printed circuit boards
  • the mechanical and electrical contact should be stable and durable.
  • the RF connection should be reasonably free of mechanical stress.
  • Prior art document EP 3 432 424 A1 describes an RF connector system, wherein a mechanical connection is made by two wing shaped surface mount sections of a housing having a plurality of surface mount studs adapted to match which pads on a PCB.
  • the electrical connection to the PCB is made by an inner conductor and at least one matching block electrically connected to the housing and providing a matched impedance at the PCB, which has a strip line with a ground plane.
  • WO 2020/006195 A1 describes an enhanced electrical grounding of hybrid feed-through connectors.
  • the present invention provides an RF connector having the features of the independent claim.
  • an RF connector for contacting a printed circuit board comprises an RF socket configured to be mounted to the PCB, the RF socket providing a coaxial terminal with a first diameter; a port flange configured to be plugged on the RF socket and providing a plug-in port with a second diameter for receiving another RF connector to be contacted to the RF socket, the second diameter being larger than the first diameter; and a centering nut configured to be disposed between the RF socket and the port flange for centering the port flange with respect to the RF socket, wherein the centering nut has an inner diameter corresponding to the first diameter of the RF socket and an outer diameter corresponding to the second diameter of the port flange.
  • one of the idea of the present invention is to attach a port flange of larger diameter to a small base connector of smaller diameter and thereby enlarge the effective contact diameter of the setup and thus its rigidity against mechanical stress, e.g. shear forces.
  • the RF properties of the arrangement may be determined by the RF socket only and may remain unaffected by the port flange, which may serve exclusively as a mechanical support for the arrangement in order to be able to couple connectors of larger diameter to the PCB. Alignment of the setup is then ensured by arranging the centering nut between the RF socket and the port flange, where it may stay permanently.
  • the internal diameter of the nut corresponds to the external diameter of the base body, while the external diameter of the nut corresponds to the diameter of the port flange (the fit between the components may leave some level of play in order to facilitate installation).
  • the setup of the invention is thus particularly simple to install and yet offers improved stability against mechanical and electrical influences.
  • the centering nut may be configured with an inner thread to be screwed upon the RF socket.
  • installation process may thus be kept as straightforward as possible.
  • installation of the setup may proceed as follows:
  • the centering nut may be configured with at least one assembly portion adapted to be engaged by an assembly tool.
  • the centering nut may be provided with holes, grooves and/or recesses or the like, which may be engaged by suitable assembly tools, e.g. by reaching through the plug-in port of the port flange.
  • any material with adequate strength and durability may be suitable for the present purpose, in particular electrically conducting materials.
  • the centering nut may comprise at least one of steel and copper-beryllium.
  • Beryllium copper combines high strength with excellent metalworking, forming and machining properties.
  • the centering nut may thus be formed with materials that retain their shape even under repeated stress and strain.
  • the port flange may comprise at least one mounting interface for fastening the port flange to at least one of the RF socket and a PCB housing.
  • the port flange may be provided with one or several fastening (through) holes for receiving corresponding fastening elements like screws, bolts or the like, which then may enter and engage corresponding holes within the RF socket and/or a PCB housing.
  • Figure 1 shows an explosive perspective view of a PCB 1 with an RF connector 10 according to an embodiment of the present invention.
  • Radio frequency (RF) and/or coaxial connectors are a key component in RF and microwave applications where they are frequently used in test and measurement equipment to connect coaxial cables with the respective read-out or signal generating system components, e.g. in signal and spectrum analyzers and/or generators, test systems for antennas and other electromagnetic equipment, oscilloscopes etc. In most of these applications it is paramount to utilize connectors that allow accurate and repeatable measurements while being durable and highly performant at the same time.
  • the RF connection with a PCB 1 should not only be easy to assemble in order to safe costs and manufacturing time but should also provide a connection that is mechanically and electrically stable.
  • the presently described solution for an RF connector provides an RF connection that offers all of these advantages.
  • the RF connector 10 of the exemplary embodiment of Figs. 1 and 2 comprises an RF socket 2 adapted to be mounted to a PCB 1 and providing a coaxial terminal 3 with a first diameter.
  • the RF socket 2 may be placed upon and contacted to the PCB 1 in the usual vein, e.g. by soldering. It may be accommodated in a small box-like or cuboid housing, from which the coaxial terminal 3 protrudes.
  • the coaxial terminal 3 may feature a relatively small diameter (e.g. roughly 4 mm).
  • the RF connector 10 is complemented by a port flange 4 configured to be plugged on the RF socket 2 and providing a plug-in port 5 with a second larger diameter (e.g. roughly 8 mm) for receiving another RF connector (not shown) to be contacted to the RF socket 2.
  • the port flange 4 is a mechanical plate-shaped retainer having a cylindrical extension with a through-hole serving as plug-in port 5 for other RF connectors and/or cables.
  • the port flange 4 may be plugged at its plug-in port 5 on the coaxial terminal 3 of the RF socket 2.
  • the port flange 4 comprises two further through-holes as mounting interfaces 8 for fastening the port flange 4 to the RF socket 2 by inserting two fastening elements 9 (e.g. screws) through the mounting interfaces 8 into respective fastening holes 11 in the RF socket 2.
  • the port flange 4 may also be fastened to a housing of the PCB 1 (not shown in Fig. 1 ) by similar means in order to further optimize the absorption of mechanical loads and to make the whole assembly more rigid.
  • the RF connector 10 further comprises a centering nut 6 as exemplarily shown in Fig. 2 .
  • the centering nut 6 is configured to be disposed between the RF socket 2 and the port flange 4 for centering the port flange 4 with respect to the RF socket 2.
  • the centering nut 6 is configured with an inner diameter 6a corresponding to the first diameter of the RF socket 2 and an outer diameter 6b corresponding to the second diameter of the port flange 4.
  • the centering nut 6 may be formed from metal with high strength, e.g. steel or a copper-beryllium alloy, to guarantee a mechanically stable and well aligned connection even under long and frequent usage of the assembly.
  • the centering nut 6 is provided with an inner thread to be screwed upon the coaxial terminal 3 of the RF socket 2 (which is provided with a complementary formed outer thread not shown in Fig. 1 ). Moreover, the centering nut 6 may feature one or several assembly portions 12 adapted to be engaged by an assembly tool to ease the installation process. In the exemplary embodiment of Fig. 2 , the centering nut 6 is provided with two ring-shaped grooves running around the inner and outer diameters of the nut 6, respectively, so that the nut 6 can be engaged by a suitable tool through the plug-in port 5 of the port flange 4 in order to apply a rotary moment to the nut 6.
  • assembly of the RF connector 10 may comprise pre-mounting the port flange 4 to the RF socket 2 by plugging it onto the RF socket 2 without (final) fixation (the fastening elements 9 are either not yet inserted or are at least not yet tightened).
  • the centering nut 6 may have already been placed on the coaxial terminal 3 (also only loosely).
  • the centering nut 6 may be inserted through the plug-in port 5 of the port flange 4 subsequently.
  • the assembly may comprise screwing the centering nut 6 onto the coaxial terminal 3 of the RF socket 2 with a defined torque for permanent retention.
  • the now centered port flange 4 may be fixed tight, e.g. by screwing it to the RF socket 2.
  • the port flange 4 may get fastened to a device housing, e.g. by further fastening elements.
  • an RF connector 10 is assembled on top of a PCB 1 featuring a port flange 4 with a large outer diameter for coupling RF connectors and cables to the PCB that is able to withstand high mechanical loads and stress.
  • the connection is well aligned due to the intermediate nut 6 between the RF socket 2 and the port flange 4, which can be kept permanently within the assembly.
  • the assembly process is simple and straightforward, eliminating the need to apply and remove the commonly used centering tools.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
EP21208997.3A 2021-11-18 2021-11-18 Connecteur rf pour contacter une carte de circuit imprimé Pending EP4184728A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21208997.3A EP4184728A1 (fr) 2021-11-18 2021-11-18 Connecteur rf pour contacter une carte de circuit imprimé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21208997.3A EP4184728A1 (fr) 2021-11-18 2021-11-18 Connecteur rf pour contacter une carte de circuit imprimé

Publications (1)

Publication Number Publication Date
EP4184728A1 true EP4184728A1 (fr) 2023-05-24

Family

ID=78695581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21208997.3A Pending EP4184728A1 (fr) 2021-11-18 2021-11-18 Connecteur rf pour contacter une carte de circuit imprimé

Country Status (1)

Country Link
EP (1) EP4184728A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824392B1 (en) * 2003-10-27 2004-11-30 Pony Guo RCA connector capable of being inserted into circuit board directly
JP2011134720A (ja) * 2011-02-25 2011-07-07 Fujitsu General Ltd 電子機器
GB2512822A (en) * 2013-03-21 2014-10-15 Cambridge Electronic Ind Ltd Coaxial Connector
EP3432424A1 (fr) 2017-07-20 2019-01-23 Spinner GmbH Connecteur rf avec une interface de montage de surface
WO2020006195A1 (fr) 2018-06-29 2020-01-02 John Mezzalingua Associates, LLC Mise à la terre électrique améliorée de connecteurs traversants hybrides

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824392B1 (en) * 2003-10-27 2004-11-30 Pony Guo RCA connector capable of being inserted into circuit board directly
JP2011134720A (ja) * 2011-02-25 2011-07-07 Fujitsu General Ltd 電子機器
GB2512822A (en) * 2013-03-21 2014-10-15 Cambridge Electronic Ind Ltd Coaxial Connector
EP3432424A1 (fr) 2017-07-20 2019-01-23 Spinner GmbH Connecteur rf avec une interface de montage de surface
WO2020006195A1 (fr) 2018-06-29 2020-01-02 John Mezzalingua Associates, LLC Mise à la terre électrique améliorée de connecteurs traversants hybrides

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