WO2014026383A1 - Système de connexion de puissance coaxial, prévu pour émettre des signaux de puissance rf - Google Patents

Système de connexion de puissance coaxial, prévu pour émettre des signaux de puissance rf Download PDF

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Publication number
WO2014026383A1
WO2014026383A1 PCT/CN2012/080313 CN2012080313W WO2014026383A1 WO 2014026383 A1 WO2014026383 A1 WO 2014026383A1 CN 2012080313 W CN2012080313 W CN 2012080313W WO 2014026383 A1 WO2014026383 A1 WO 2014026383A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
ground contact
plug
socket
contact
Prior art date
Application number
PCT/CN2012/080313
Other languages
English (en)
Inventor
Shan QIN
Zhenhua Yang
Original Assignee
Shanghai Radiall Electronics Co., Ltd
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 Shanghai Radiall Electronics Co., Ltd filed Critical Shanghai Radiall Electronics Co., Ltd
Priority to PCT/CN2012/080313 priority Critical patent/WO2014026383A1/fr
Priority to CN201280075312.8A priority patent/CN104641516B/zh
Publication of WO2014026383A1 publication Critical patent/WO2014026383A1/fr

Links

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
    • H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
    • 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
    • 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 a coaxial power connection system, intended in particular to transmit radio frequency RF power signals.
  • the applications particularly targeted by the invention are the connection of telecommunication equipment such as base transceiver stations BTS and RRU/RRH (remote radio unit/remote radio head) units for the wireless communications market.
  • telecommunication equipment such as base transceiver stations BTS and RRU/RRH (remote radio unit/remote radio head) units for the wireless communications market.
  • the invention also relates generally to the connection systems in the medical domain, the industrial domain, the aeronautical or transport domain and the space domain.
  • the invention more particularly aims to propose a power connection system of coaxial type for which the electrical and mechanical RF performance levels are controlled and stable over time, with, in particular, a low contact resistance and a low intermodulation level.
  • coaxial power connectors with high RF performance levels, notably with low intermodulation levels, such as those marketed under the series 7-16 or series N and 4.1/9.5 designation.
  • Figure 1 shows, in longitudinal cross section, a coaxial power connection system which has been marketed for more than 30 years under the series 7/16 designation and which aimed to ensure power transmission of RF signals with no real demand on the intermodulation level .
  • the socket 3 comprises a central contact 30 and a peripheral contact 31 arranged at the periphery of the central contact, forming a ground contact. Furthermore, an insulator which is not represented is interposed between the central contact and the ground contact, all these elements being housed in a body 32.
  • the central 30 and ground 31 contacts are each in the form of a slotted sleeve.
  • a locking cap 4 was provided, to be screwed around both the plug and the socket.
  • the plug 2 itself comprises a central contact 20 and a peripheral contact 21 arranged at the periphery of the central contact, forming a ground contact. Furthermore, an insulator 23 is interposed between the central contact and the ground contact.
  • the central 20 and ground 21 contacts of the plug are solid contacts, that is to say not slotted.
  • the slotted form of the sleeve forming the ground contact 31 of the socket 3, and the radial contact that it induced on the plug 2, associated with the weak axial abutment contact on the longitudinal axis X did not make it possible to obtain a satisfactory intermodulation level.
  • the tightening torque applied to the locking cap 4 was then increased to produce a strong contact in abutment, on the longitudinal axis X of the connection system, of the ground contact of the socket 3 against the ground contact of the plug 2.
  • the plane P is designated as being the one defined by the longitudinal end of the petals of a pin forming a ground contact in a coaxial connector.
  • the strong contact in abutment on the plane P generates a low intermodulation level .
  • the ground contact has become not slotted. This is because the pressure applied by the slotted ground contact of the plug 2 on the socket 3 could induce, with the high tightening torque applied to the locking cap, a buckling of the petals 310 of the pin 31 forming the ground contact of the socket. Furthermore, the tightening torque applied could have a tendency to relax over time, and cause the electrical performance levels associated with the connectors to change .
  • This coaxial connection system 1 comprises a plug 3 intended to be mutually connected with a socket 2 for the transmission of the RF signals.
  • the plug 3 comprises a central contact 30 and a peripheral contact 31 arranged at the periphery of the central contact, forming a ground contact. Furthermore, an insulator 33 is interposed between the central contact and the ground contact, all these elements 30, 31 being housed in the body 32.
  • the socket 2 also comprises a central contact 20 and a peripheral contact 21 arranged at the periphery of the central contact, forming a ground contact. Furthermore, an insulator is interposed between the central contact and the ground contact, all these elements 20, 21 being housed in the body 22.
  • the ground contacts 21, 31 of the connectors of Figure 2 are solid contacts, that is to say not slotted.
  • this device 4 consists of a nut 24 mounted free in rotation around the body 22 of the plug 2 and a screw, the threads 34 of which are produced on the periphery of the body 32 of the socket 3.
  • the solid ground contact 31 applies pressure on the plane P against the solid ground contact 21.
  • a resultant pressure dependent on the tightening torque is obtained on the plane P, this pressure inducing an electrical contact between the two ground contacts 21, 31.
  • a power connection system 1 represented in Figure 2 offers high RF performance levels with, in particular, a low intermodulation level, a low reflection rate, a low loss level.
  • the invention aims to address all or some of these needs.
  • the subject of the invention is thus a coaxial power connection system, intended to transmit radio frequency RF power signals, of longitudinal axis X, comprising :
  • one of the ground contacts is elastic and comprises a slotted sleeve
  • the other ground contact is rigid and comprises a rigid body provided with a recess, the slotted sleeve bearing radially against the interior of the rigid body in connection configuration between plug and socket.
  • the bayonet locking device is suitable for providing and allowing an axial operating play (J) to remain between ground contacts on the axis X, once the locking is done, the connection between ground contacts being produced by the radial bearing of the elastic one against the interior of the rigid one .
  • connection system also comprises a spring- forming element working in compression mode, arranged around the elastic ground contact; the spring- forming element being compressed by the bearing of the rigid ground contact when the plug is locked to the socket by the locking device, then maintained compressed once the locking is done so as to keep the plug and the socket locked together with the axial operating play (J) between ground contacts.
  • This spring- forming element exhibits a strong stiffness and a limited travel for satisfactory system performance levels.
  • bayonet-type locking device should be understood to mean a locking device that works by the cooperation of at least one pin (stud) with an opening (slot) and which can be implemented manually without there being any need to use tools to increase the locking force by hand.
  • a bayonet locking device is usually known generically as a rapid locking device.
  • the invention mainly consists in ensuring, stably and reliably over time, the axial immobilization of the ground contacts while ensuring an axial operating play between ground contacts through a rapid locking system.
  • the invention consists in definitely doing away with any damaging abutment at the end of ground contacts as with the coaxial connectors according to the prior art, for example those already marketed under the designations series 7- 16, N, 4.1-9.5 by the applicant.
  • a power connection system exhibits high RF performance levels, with in particular a low intermodulation level, a low VSWR (voltage standing wave ratio) reflection rate, low transmission losses, a low rate of RF leaks, that are stable over time.
  • a power connection system according to the invention allows for a connection and locking between plug and socket that is faster and more reliable than according to the prior art .
  • connection systems according to the invention for an installation on a fixing panel increases the density of the installation compared to connection systems according to the prior art as shown in Figure 2: this is because there is no longer any need to provide additional space for the placement and manipulation of a wrench.
  • one of the central contacts is a rigid pin whereas the other central contact is a slotted sleeve forming a tulip contact.
  • the spring working in compression mode consists of an 0- ring seal made of compressible material.
  • the seal produces both the fluidtightness with respect to the outside and the spring function for maintaining the locking between plug and socket with the axial operating play according to the invention between ground contacts.
  • the spring- forming element is substantially at the compressibility limit when the hard point of the locking device is reached when locking the plug to the socket, the hard point being defined as the point of operation of the locking device at which the greatest force has to be applied when locking.
  • the force of the spring is thus optimized according to the locking to be maintained.
  • the bayonet type locking device comprises:
  • locking cap mounted to be at least free in rotation around the elastic ground contact, the locking cap comprising an external portion suitable for manual gripping, and an internal portion provided with at least one locking opening;
  • each locking pin being suitable for cooperating with a locking opening by translation and rotation of the locking cap around the rigid ground contact, so as to mechanically lock the plug to the socket simultaneously with their mutual connection.
  • Such a bayonet locking device is simple to produce and reliable over time.
  • the internal and external portions of the locking cap are distinct parts force fitted into one another.
  • the internal and external portions of the locking cap constitute one and the same part produced by overmoulding .
  • the locking cap is mounted fixed in translation around the elastic ground contact.
  • the device also comprises an 0-ring seal arranged at the periphery of the rigid ground contact and bearing against the interior of the locking plug once the locking is done.
  • the locking cap comprises three locking openings of the same form distributed at 120° relative to one another, any of the locking pins being suitable for cooperating with any of the openings.
  • the elastic ground contact is made of or coated with a material chosen from a material based on silver, a tin alloy, copper, zinc or a high- strength bronze.
  • a power connector which has just been described can exhibit a 3rd order intermodulation level less than -120 dBm for two RF carriers of 20 W ranging from 0 to 7.5 GHz.
  • FIG. 1 is a longitudinal cross-sectional view of a coaxial power connection system according to the prior art, the plug and the socket being in mutual connection and locking configuration;
  • Figures 1A to 1C are views respectively in perspective, in longitudinal cross section and from the side of a socket of a coaxial power connection system according to the prior art and used in the connection system of Figure 1 ;
  • FIG. 2 is a longitudinal cross-sectional view of another coaxial power connection system according to the prior art, the plug and the socket being in mutual connection and locking configuration;
  • FIG. 3 is a longitudinal cross-sectional view of a coaxial power connection system according to the invention, the plug and the socket being in mutual connection and locking configuration;
  • Figure 3A is an enlarged view of the interface of Figure 3 ;
  • FIGS. 4A to 4C are longitudinal cross- sectional views of a coaxial power connection system according to the invention, showing the plug and the socket respectively in disconnected configuration, during connection and in mutual connection and locking configuration;
  • FIGS. 5A to 5C are perspective views of a coaxial power connection system according to the invention, corresponding to the configurations of Figures 4A to 4C;
  • FIGS. 6A and 6B are schematic cross- sectional views showing the positions respectively during the locking and once the locking is completed of the elements of the locking device of a coaxial power connection system according to the invention
  • FIGS. 7A and 7B are perspective views respectively showing a plug and a socket of a coaxial power connection system according to the invention.
  • Figures 1, 1A to 1C and 2 relate to two different examples of coaxial power connection systems according to the prior art. These Figures 1, 1A to 1C and 2 have already been commented on in the preamble and will not therefore be commented on further hereinbelow .
  • the invention is described with reference to an RF line of 7/16 type and with a bayonet-type rapid locking device by way of example and illustration.
  • the invention can be applied to any type of power RF line.
  • Figures 3 and 3A represent an example of a coaxial power connection system 1, according to the invention, the plug 2 and the socket 3 in mutual connection and locking configuration.
  • the connection system 1 extends along a longitudinal axis X.
  • This connection system 1 comprises, respectively, a plug 2, a socket 3 and a manual locking device 4 suitable for mechanically locking the plug 2 to the socket 3 when they are in mutual connection configuration ( Figures 3, 3A, 4C, 5C) .
  • the plug 2 comprises a central contact 20, a peripheral contact 21 arranged on the periphery of the central contact.
  • the peripheral contact 21 is elastic and forms a ground contact.
  • An electrical insulator 23 is interposed between the central contact 20 and the ground contact 21.
  • the contact 20 is a slotted sleeve forming a tulip contact, the petals of which are mutually close together.
  • the ground contact 21 is also a slotted sleeve. It is advantageously formed of, or coated by a coating based on, silver or an alloy of tin, copper, zinc or a high- strength bronze.
  • the tip of the slotted sleeve 21 of the ground contact defines a plane P.
  • the socket 3 comprises a central contact 30, a peripheral contact 31 arranged on the periphery of the central contact.
  • the peripheral contact 31 is rigid and forms a ground contact.
  • this rigid ground contact 31 comprises a body provided with a recess.
  • An insulator 33 is interposed between the central contact 30 and the ground contact 31.
  • the central contact 30 is a pin.
  • the rigid ground contact 31 is in the form of a hollow cylinder with walls that are continuous, that is to say not slotted. In other words, the rigid ground contact 31 is a contact that can be qualified as solid.
  • the locking device 4 is suitable for providing and allowing an axial operating play J to remain between ground contacts 21, 31 on the axis X, once the locking is done ( Figures 3, 3A, 4C) .
  • the connection between ground contacts 21, 31 is thus produced only by the radial bearing of the elastic ground contact 21 against the interior of the recess of the rigid ground contact 31.
  • the axial operating play J may advantageously be between 0.05 mm and 0.6 mm.
  • a spring- forming element 5, working in compression mode is provided, arranged around the elastic ground contact 21.
  • the spring working in compression mode consists of an 0-ring seal made of compressible material . Both the desired spring function and the tightness to fluids outside the connector 1 are thus provided.
  • the O-ring seal 5 is compressed by the bearing of the body of the rigid ground contact 31 during locking by the locking device 4, then it is kept compressed once the locking is done so as to keep the plug 2 and the socket 3 locked together with the axial operating play between ground contacts.
  • the seal 5 is substantially at the compressibility limit when the hard point of the locking device 4 is reached when locking the plug to the socket, the hard point being defined as the point of operation of the locking device 4 at which the greatest force has to be applied when locking.
  • the manual locking device 4 is a bayonet- type device. It thus comprises one or more locking pins 35, formed on the periphery of the rigid ground contact 31. This (these) locking pin(s) 35 is (are), in the examples considered, made of a single part with the ground contact 31. Preferably, three locking pins 35 are distributed at 120° relative to one another.
  • the device 4 also comprises a locking cap 40, 41, mounted free in rotation around the elastic ground contact 21 but fixed in translation on the axis X.
  • This cap comprises an external portion 40 suitable for manual gripping, and an internal portion 41 provided with one or more locking openings 42.
  • three identical openings 42 are distributed at 120° relative to one another.
  • each locking pin 35 is suitable for cooperating with a locking opening 42 that works by translation and rotation of the locking plug 40, 41 around the rigid ground contact 31, so as to mechanically lock the plug 2 to the socket 3 simultaneously with their mutual connection.
  • An O-ring seal 6 is preferably arranged at the periphery of the rigid ground contact 31. This seal 6 bears against the interior of the locking cap 40, 41 once the locking is done ( Figures 3, 3A, 4C) .
  • Another O-ring seal 7 is also preferably arranged between the locking cap 41 and the elastic ground contact 21 which supports it.
  • a power connection system 1 according to the invention is perfectly suited to a use in an outdoor environment, even in extreme temperature and humidity conditions.
  • Figures 4A to 6B show the various manual steps of mutual connection and locking between the plug 2 and the socket 3 in a power connection system 1 according to the invention, with a bayonet device 4 which has just been described, the locking cap 40, 41 being assembled with the plug 2 beforehand. All these steps can be performed simply by gripping the locking cap 4 in one hand.
  • Figures 4A and 5A illustrate the placing of the plug 2 and the socket 3 facing one another with alignment on the axis X.
  • FIGS 4B and 5B illustrate the start of the connection and the locking between plug 2 and socket 3.
  • the locking cap 40 is made to slide over the rigid ground contact 31.
  • the elastic ground contact 21 bears radially against the interior of the recess of the rigid ground contact 31, the central contacts 20, 30 themselves being apart from one another.
  • each locking pin 35 begins to penetrate into an opening 42.
  • Figures 4C and 5C illustrate the end of the connection and locking between plug 2 and socket 3.
  • the sliding of the locking cap 4 is continued and, simultaneously, it is rotated around the axis X in order to produce the complete locking.
  • the ground contact 21 bears only radially against the interior of the recess of the rigid ground contact 31 with an axial operating play J which is therefore gauged and kept constant over time by the locking device 4.
  • FIGs 6A and 6B more specifically illustrate the completion of the locking by the sliding then blocking of a locking pin 35 in a locking opening 42.
  • each pin 35 passes the hard locking point, that is to say, the point of the opening 42 in which it slides which is the furthest away from the inlet ( Figure 6A) .
  • the seal 5 by its spring effect, holds each pin 35 in its corresponding opening ( Figure 6B) , that is to say the connected configuration with the plug 2 on the socket 3.
  • the external 40 and internal 41 portions of the locking cap 4 are made of distinct parts force fitted into one another, it is possible, as an alternative variant, to provide for these portions to be of a single part produced by overmoulding .
  • the outer gripping portion of the locking cap 4 can be solid, that is to say without openings 42 or other openings as shown in Figures 3 to 5C, or can directly incorporate the locking openings 42 as shown in Figure 7A, the sealing of the RF line being ensured by the seal 5.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

La présente invention porte sur un système de connexion de puissance coaxial qui comprend : une fiche, une prise femelle, et un dispositif de verrouillage de type baïonnette. La fiche et la prise femelle comprennent chacune : un contact central, un contact de masse. Le dispositif de verrouillage de type baïonnette est adapté pour verrouiller de manière mécanique la fiche sur la prise femelle, le dispositif de verrouillage à baïonnette étant adapté pour fournir et permettre un jeu de fonctionnement axial pour rester entre des contacts de masse sur l'axe X. Une fois que le verrouillage est réalisé, la connexion entre des contacts de masse est produite par le support radial du contact de masse contre l'intérieur de l'autre contact de masse. Le système comprend également un ressort, disposé autour du contact de masse, et le ressort est comprimé par le support de l'autre contact de masse lorsque la fiche est verrouillée sur la prise femelle, est ensuite maintenu comprimé une fois que le verrouillage est réalisé afin de garder la fiche et la prise femelle verrouillées ensemble avec le jeu de fonctionnement axial entre des contacts de masse.
PCT/CN2012/080313 2012-08-17 2012-08-17 Système de connexion de puissance coaxial, prévu pour émettre des signaux de puissance rf WO2014026383A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2012/080313 WO2014026383A1 (fr) 2012-08-17 2012-08-17 Système de connexion de puissance coaxial, prévu pour émettre des signaux de puissance rf
CN201280075312.8A CN104641516B (zh) 2012-08-17 2012-08-17 既定传输rf功率信号的同轴功率连接系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/080313 WO2014026383A1 (fr) 2012-08-17 2012-08-17 Système de connexion de puissance coaxial, prévu pour émettre des signaux de puissance rf

Publications (1)

Publication Number Publication Date
WO2014026383A1 true WO2014026383A1 (fr) 2014-02-20

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PCT/CN2012/080313 WO2014026383A1 (fr) 2012-08-17 2012-08-17 Système de connexion de puissance coaxial, prévu pour émettre des signaux de puissance rf

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CN (1) CN104641516B (fr)
WO (1) WO2014026383A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106941221A (zh) * 2016-01-05 2017-07-11 上海航天科工电器研究院有限公司 一种具有防护帽的射频同轴电连接器
EP3193405A1 (fr) 2016-01-13 2017-07-19 Radiall S.A. Système de connexion coaxiale destiné aux signaux rf à hauts niveaux de performance rf
EP3300178A1 (fr) * 2016-09-23 2018-03-28 Apple Inc. Connecteurs rf magnétiques
WO2019227433A1 (fr) * 2018-05-31 2019-12-05 Radiall Système de raccordement coaxial destiné à être utilisé dans des environnements extérieurs
US11121502B2 (en) 2016-09-23 2021-09-14 Apple Inc. Magnetic connectors
WO2021225666A1 (fr) * 2020-05-08 2021-11-11 John Mezzalingua Associates, LLC Connecteur rf de grappe avec interface de polarisation
US12009616B2 (en) 2021-02-26 2024-06-11 John Mezzalingua Associates Llc Cluster RF connector with biasing interface

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Publication number Priority date Publication date Assignee Title
DE102015007979A1 (de) * 2015-06-18 2016-12-22 Fludicon Gmbh Hochspannungsanschlussvorrichtung für eine elektrorheologische Vorrichtung
RU2649678C1 (ru) * 2017-03-30 2018-04-04 Акционерное общество "Научно-производственная фирма "Микран" Сверхширокополосный коаксиальный фазовращатель
CN208401199U (zh) * 2018-07-27 2019-01-18 东莞市旭建电子科技有限公司 公母自锁式连接器组件
CN114207955A (zh) * 2019-07-26 2022-03-18 赫斯曼汽车有限公司 具有间隙补偿的适配器插头

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US5938465A (en) * 1997-10-15 1999-08-17 Palco Connector, Inc. Machined dual spring ring connector for coaxial cable
JP2009123591A (ja) * 2007-11-16 2009-06-04 Komine Musen Denki Kk 同軸コネクタ
WO2010046242A2 (fr) * 2008-10-21 2010-04-29 Delphi Technologies, Inc. Connecteur coaxial et récipient

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US5938465A (en) * 1997-10-15 1999-08-17 Palco Connector, Inc. Machined dual spring ring connector for coaxial cable
JP2009123591A (ja) * 2007-11-16 2009-06-04 Komine Musen Denki Kk 同軸コネクタ
WO2010046242A2 (fr) * 2008-10-21 2010-04-29 Delphi Technologies, Inc. Connecteur coaxial et récipient

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106941221A (zh) * 2016-01-05 2017-07-11 上海航天科工电器研究院有限公司 一种具有防护帽的射频同轴电连接器
EP3193405A1 (fr) 2016-01-13 2017-07-19 Radiall S.A. Système de connexion coaxiale destiné aux signaux rf à hauts niveaux de performance rf
JP7186488B2 (ja) 2016-01-13 2022-12-09 ラディアル 高いｒｆ性能レベルを有する、ｒｆ信号のための同軸接続システム
EP3300178A1 (fr) * 2016-09-23 2018-03-28 Apple Inc. Connecteurs rf magnétiques
CN107871943A (zh) * 2016-09-23 2018-04-03 苹果公司 磁力rf连接器
US11121502B2 (en) 2016-09-23 2021-09-14 Apple Inc. Magnetic connectors
WO2019227433A1 (fr) * 2018-05-31 2019-12-05 Radiall Système de raccordement coaxial destiné à être utilisé dans des environnements extérieurs
CN110892589A (zh) * 2018-05-31 2020-03-17 雷迪埃公司 旨在室外环境中使用的同轴连接系统
WO2021225666A1 (fr) * 2020-05-08 2021-11-11 John Mezzalingua Associates, LLC Connecteur rf de grappe avec interface de polarisation
US12009616B2 (en) 2021-02-26 2024-06-11 John Mezzalingua Associates Llc Cluster RF connector with biasing interface

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CN104641516A (zh) 2015-05-20
CN104641516B (zh) 2017-05-17

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