WO2021003826A1 - 一种射频同轴连接器 - Google Patents

一种射频同轴连接器 Download PDF

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Publication number
WO2021003826A1
WO2021003826A1 PCT/CN2019/103698 CN2019103698W WO2021003826A1 WO 2021003826 A1 WO2021003826 A1 WO 2021003826A1 CN 2019103698 W CN2019103698 W CN 2019103698W WO 2021003826 A1 WO2021003826 A1 WO 2021003826A1
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WO
WIPO (PCT)
Prior art keywords
conductor
socket
radio frequency
plug
coaxial connector
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Application number
PCT/CN2019/103698
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English (en)
French (fr)
Inventor
肖顺群
Original Assignee
上海航天科工电器研究院有限公司
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Filing date
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Application filed by 上海航天科工电器研究院有限公司 filed Critical 上海航天科工电器研究院有限公司
Priority to US17/624,814 priority Critical patent/US11862909B2/en
Priority to JP2022500759A priority patent/JP7237237B2/ja
Priority to EP19936926.5A priority patent/EP3996215B1/en
Publication of WO2021003826A1 publication Critical patent/WO2021003826A1/zh

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    • 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
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • 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
    • H01R24/42—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 comprising impedance matching means or electrical components, e.g. filters or switches
    • H01R24/44—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 comprising impedance matching means or electrical components, e.g. filters or switches comprising impedance matching means
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • 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
    • H01R13/46—Bases; Cases
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • 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
    • H01R13/642—Means for preventing incorrect coupling by position or shape of contact members
    • 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
    • H01R13/646—Details 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
    • H01R13/6473—Impedance matching
    • H01R13/6474—Impedance matching by variation of conductive properties, e.g. by dimension variations
    • 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
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement

Definitions

  • the invention relates to a radio frequency coaxial connector, belonging to the technical field of radio frequency connectors.
  • the radio frequency coaxial connector is generally regarded as a component attached to a cable or installed on an instrument as a component for electrical connection or separation of a transmission line.
  • the RF coaxial connector is mainly incompletely inserted, so the impedance at the RF coaxial connector can reach 70 ⁇ 80 ⁇ , for example, the actual insertion position and complete insertion of the RF coaxial connector
  • the error between the positions is 3mm, then the impedance at the RF coaxial connector can reach 80 ⁇ , which is far greater than 50 ⁇ .
  • the dielectric thickness required for 50 ⁇ impedance is between 3 and 4MIL, which can also effectively reduce interference; because the dielectric thickness is small, the smaller the distance between the signal and the reference plane, the smaller the interference to adjacent signals.
  • the radio frequency plug and the radio frequency socket must be fully inserted, otherwise the signal transmission is easily affected.
  • RF transmission lines are usually distributed in large numbers in arrays, which makes multiple RF coaxial connectors usually integrated; and the RF plug and RF socket in a single RF coaxial connector are completely plugged and easy to operate.
  • the present invention provides a radio frequency coaxial connector.
  • the specific technical solutions are as follows:
  • a radio frequency coaxial connector includes a radio frequency plug and a radio frequency socket matched with the radio frequency plug.
  • the radio frequency plug includes a tubular plug outer conductor.
  • a conductor plate, the inner side of the first conductor plate is connected to the plug outer conductor as a whole, the outer side of the first conductor plate is arranged inside the plug outer conductor, and the central axis of the plug outer conductor is fixed
  • a second conductor plate is provided, and a gap is provided between the outer side wall of the second conductor plate and the inner side wall of the plug outer conductor;
  • the radio frequency socket includes a tubular socket housing, and the front end of the socket housing is provided with a first conductor
  • a first slot that matches the board, a tuning-fork-shaped socket inner conductor is arranged on the central axis of the socket shell, and a second slot that matches the second conductor plate is arranged on the head end of the inner conductor of the socket.
  • An insulating sleeve is filled between the tail of
  • the inner wall of the front end of the plug outer conductor is provided with an inner cone structure
  • the inner wall of the front end of the socket housing is provided with an outer cone structure
  • the number of the first conductor plates is set to two, and the central axis of the two first conductor plates and the central axis of the second conductor plate are coplanar.
  • the width direction of the second conductor plate and the width direction of the conductor in the socket are perpendicular to each other.
  • the radio frequency plug in the radio frequency coaxial connector When the radio frequency plug in the radio frequency coaxial connector is plugged into the radio frequency socket, even if the radio frequency plug and the radio frequency socket are not inserted in place, the actual insertion position of the radio frequency plug and the radio frequency socket is completely inserted into the radio frequency plug and the radio frequency socket
  • the error between the positions of the RF plug and the RF socket is less than 3mm, the impedance change between the RF plug and the RF socket is small, and the signal transmission is almost free from interference;
  • the RF coaxial connector has high fault tolerance and is suitable for large-scale synchronization applications.
  • the pulling operation is simple and convenient, and the signal transmission is not easily damaged; the radio frequency coaxial connector has a wide application prospect and important application value in high-tech fields such as electronic information.
  • Figure 1 is a schematic diagram of the radio frequency coaxial connector of the present invention when it is connected;
  • FIG. 2 is a schematic diagram of the structure of the radio frequency plug of the present invention.
  • FIG. 3 is a schematic diagram of the structure of the radio frequency plug of the present invention (front view state);
  • FIG. 4 is a schematic diagram of the structure of the radio frequency socket of the present invention.
  • FIG. 5 is a schematic diagram of the connection between the first conductor plate, the second conductor plate and the radio frequency socket of the present invention
  • Fig. 6 is a schematic diagram of the connection between the radio frequency plug and the radio frequency socket of the present invention.
  • a plurality means two or more; the terms “upper”, “lower”, “left”, “right”, “inner “,” “outer”, “front end”, “rear end”, “head”, “tail” and other directions or positional relations are based on the positions or positional relations shown in the drawings, and are only for the convenience of describing the present invention and The description is simplified, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.
  • the terms “first”, “second”, “third”, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.
  • the radio frequency coaxial connector includes a radio frequency plug and a radio frequency socket coaxially arranged with the radio frequency plug.
  • the coaxial arrangement here means that the central axis of the radio frequency plug is coaxial with the central axis of the radio frequency socket.
  • the radio frequency plug and the radio frequency socket are movably linked in a plug-in manner
  • the radio frequency plug includes a tubular plug outer conductor 1, and the inner portion of the plug outer conductor 1 is provided with a plurality of sections along the axial direction of the plug outer conductor 1
  • a conductor plate 2 the first conductor plate 2 is a plate-shaped conductor, the inner side of the first conductor plate 2 is connected to the plug outer conductor 1 as a whole, and the outer side of the first conductor plate 2 is arranged at Inside the plug outer conductor 1, the inner side of the first conductor plate 2 is the side of the first conductor plate 2 that is connected to the plug outer conductor 1, and the outer side of the first conductor plate 2 is It is the side opposite to the inner side of the first conductor plate 2; the second conductor plate 3 is fixed at the central axis of the plug outer conductor 1.
  • the second conductor plate 3 is also a plate-shaped conductor.
  • the two conductor plates 3 are arranged coaxially with the plug outer conductor 1, the second conductor plate 3 is arranged inside the plug outer conductor 1, and the second conductor plate 3 is arranged between the outer side wall and the inner side wall of the plug outer conductor 1.
  • the radio frequency socket includes a tubular socket housing 5, the front end of the socket housing 5 is provided with a first slot 51 matching the first conductor plate 2, and the center axis of the socket housing 5 is provided with a tuning fork shape
  • the socket inner conductor 6, the tuning fork shape is similar to a Y-shaped structure, the head end of the socket inner conductor 6 is provided with a U-shaped second slot 61 matching the second conductor plate 3, and the socket inner conductor 6
  • An insulating sleeve 7 is filled between the tail and the inner wall of the socket housing 5.
  • the front end of the radio frequency plug is inserted into the front end of the radio frequency socket.
  • the first conductor plate 2 is inserted into the first socket 51, and at the same time, the second conductor plate 3 is inserted into the tuning fork In the U-shaped second slot 61 in the inner conductor 6 of the socket, the front end of the socket shell 5 is inserted into the outer conductor 1 of the plug, as shown in FIGS. 5 and 6.
  • the socket housing 5 is an outer conductor, and the socket housing 5 is in contact with the plug outer conductor 1 to be electrically connected; the first conductor plate 2 is in contact with the socket housing 5 to be electrically connected, and the first conductor plate 2 is electrically connected to the plug
  • the outer conductor 1 is electrically connected, and therefore, the socket housing 5 and the first conductor plate 2 are electrically connected to each other.
  • the second conductor plate 3 is fixedly installed inside the plug outer conductor 1. There is no contact between the second conductor plate 3 and the plug outer conductor 1.
  • the second conductor plate 3 is electrically connected to the socket inner conductor 6, and the socket inner conductor 6 is insulated
  • the sleeve 7 is separated from the socket housing 5; therefore, the second conductor plate 3 and the socket inner conductor 6 are electrically connected to form the first parallel plate in the parallel plate capacitor.
  • the socket housing 5, the first conductor plate 2 and the plug outer conductor 1 are electrically connected Connect to form the second parallel plate in the parallel plate capacitor.
  • the relationship between the capacitance C and the plate's facing area S and the plate distance d is that the capacitance C is proportional to S, and the capacitance C and d Inversely proportional; in the process of mating the RF plug and the RF socket, when the RF plug and the RF socket are fully inserted, that is, the end of the second conductor plate 3 is inserted into the bottom of the second socket 61 as a standard ; When the insertion is not in place, that is, the end of the second conductor plate 3 is not in contact with the bottom of the second slot 61, at this time, even if not completely in contact, the end of the second conductor plate 3 and the second slot There is a gap between the bottom of the groove of 61.
  • the socket shell 5 and the plug outer conductor 1 are round pipes, and the width direction of the second conductor plate 3 and the width direction of the socket inner conductor 6 are perpendicular to each other, which makes the second conductor plate 3 inserted into the socket inner conductor
  • the projection of the second conductor plate 3 and the socket inner conductor 6 along the axis of the second conductor plate 3 or the axial direction of the socket inner conductor 6 is cross-shaped, that is, the first one is parallel In the parallel plate capacitor C formed by the plate and the second parallel plate, the first conductor plate 2, the second conductor plate 3, the socket inner conductor 6 and the socket shell 5 and the plug outer conductor 1 are arranged at equal intervals.
  • the facing area S is always in a fixed state, and the distance d between the plates is ultimately determined by the cross-shaped structure between the second conductor plate 3 and the socket inner conductor 6.
  • the second conductor plate 3 and the socket inner conductor 6 of this structure The change of the distance d between the plates is small, and the change of the capacitance C is very small.
  • the impedance between the radio frequency plug and the radio frequency socket changes little, and the signal transmission loss is small.
  • the slot spacing of the second slot 61 is smaller than the slot bottom spacing of the second slot 61, which makes the second slot 61 elastic and can better electrically contact the second conductor plate 3.
  • the inner wall of the front end of the plug outer conductor 1 is provided with an inner cone structure
  • the inner wall of the front end of the socket housing 5 is provided with an outer cone structure.
  • the front end of the plug outer conductor 1 is the end that is inserted into the radio frequency plug; similarly, the front end of the socket housing 5 is the end that is inserted into the radio frequency socket.
  • the second conductive plate 3 and the second slot 61 have a clearance fit.
  • the first conductor plate 2 and the first slot 51 are in clearance fit.
  • the number of the first conductor plates 2 is set to two, and the central axis of the two first conductor plates 2 and the central axis of the second conductor plate 3 are coplanar.
  • the first conductor plate 2 corresponds to the first slot 51 one-to-one
  • the second conductor plate 3 corresponds to the second slot 61 one-to-one
  • the number of the first slot 51 is set to two, and two first slots 51
  • the central axis of the slot 51 and the central axis of the second slot 61 are coplanar.
  • the plug structure between the radio frequency plug and the radio frequency socket is arranged at equal intervals, even if the radio frequency plug and the radio frequency socket are not inserted in place, for example, in the present invention
  • the impedance between the RF plug and the RF socket is 50 ⁇ 0.5 ⁇ ;
  • the error between the actual insertion position of the radio frequency plug and the radio frequency socket in the present invention and the complete insertion position of the radio frequency plug and the radio frequency socket is 0-3mm, and the impedance change between the radio frequency plug and the radio frequency socket is ⁇ 0.5 ⁇ ;
  • the impedance change is very small, which can significantly reduce interference.
  • the radio frequency coaxial connector of the present invention when the radio frequency coaxial connector of the present invention is applied on a large scale, when multiple radio frequency coaxial connectors are plugged in at the same time, even if the radio frequency plugs and radio frequency sockets in several radio frequency coaxial connectors are different.
  • the radio frequency coaxial connector of the present invention has broad application prospects and important application value in high-tech fields such as electronic information.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Waveguide Connection Structure (AREA)

Abstract

一种射频同轴连接器，包括射频插头、射频插座，射频插头包括管状插头外导体（1），插头外导体（1）的内部沿着插头外导体（1）轴向设置有多个第一导体板（2），插头外导体（1）的中心轴处固设有第二导体板（3），射频插座包括管状插座外壳（5），插座外壳（5）的前端设置有与第一导体板（2）相匹配的第一插槽（51），插座外壳（5）的中心轴处设置有音叉状插座内导体（6），插座内导体（6）的首端设置有与第二导体板（3）相匹配的第二插槽（61），插座内导体（6）的尾部与插座外壳（5）的内壁之间填充有绝缘套（7）。射频同轴连接器中的射频插头与射频插座进行插接时，插接误差在3mm以内，阻抗变化小，信号传输几乎不受干扰；射频同轴连接器的容错性高，适合大规模同步应用。

Description

一种射频同轴连接器 技术领域
本发明涉及一种射频同轴连接器，属于射频连接器技术领域。
背景技术
射频同轴连接器通常被认为是装接在电缆上或安装在仪器上的一种元件，作为传输线电气连接或分离的元件。
目前的射频同轴连接器在使用过程中，如果射频插头与射频插座插接不到位，即射频插头和射频插座的实际插接位置与射频插头和射频插座完全插接的位置存在误差，例如，对于单根射频传输线来说，射频同轴连接器主要不完全插接，那么射频同轴连接器处的阻抗能够达到70～80Ω，例如，射频同轴连接器的实际插接位置与完全插接位置之间的误差是3mm，那么射频同轴连接器处的阻抗能够达到80Ω，该阻抗远远大于50Ω。在高频高速线路中存在趋肤效应，业界早己证明阻抗为50Ω对于趋肤效应来说，它的损耗是最小的。对于电气性能上说，50Ω阻抗所需要的介质厚度3～4MIL之间，也是能有效减少干扰；因为介质厚度小，信号与参考平面的距离越小，对相邻信号的干扰会越小。
因此，目前的射频同轴连接器在使用过程中，射频插头与射频插座必须完全插接，不然易影响信号传递。但是，高频高速线路中，射频传输线通常都是大量成阵列分布，这使得通常将多个射频同轴连接器集成；而单个射频同轴连接器中的射频插头与射频插座完全插接操作容易达到，但是一次性给多数的射频同轴连接器同时进行插接操作，易存在若干个射频同 轴连接器中的射频插头与射频插座不完全插合的现象，这使得后续必须进行多次调试、调整、再次插合等操作，不但操作麻烦，而且还易造成信号传递受损。
发明内容
本发明针对现有技术存在的不足，提供了一种射频同轴连接器，具体技术方案如下：
一种射频同轴连接器，包括射频插头、与射频插头相匹配的射频插座，所述射频插头包括管状插头外导体，所述插头外导体的内部沿着插头外导体轴向设置有多个第一导体板，所述第一导体板的内侧边与插头外导体连接为一体，所述第一导体板的外侧边设置在插头外导体的内部，所述插头外导体的中心轴处固设有第二导体板，所述第二导体板的外侧壁与插头外导体的内侧壁之间设置有间隙；所述射频插座包括管状插座外壳，所述插座外壳的前端设置有与第一导体板相匹配的第一插槽，所述插座外壳的中心轴处设置有音叉状插座内导体，所述插座内导体的首端设置有与第二导体板相匹配的第二插槽，所述插座内导体的尾部与插座外壳的内壁之间填充有绝缘套。
作为上述技术方案的更进一步优化改进方案是，所述插头外导体前端的内壁设置有内锥面结构，所述插座外壳前端的内壁设置有外锥面结构。
作为上述技术方案的更进一步优化改进方案是，所述第二导体板与第二插槽之间为间隙配合。
作为上述技术方案的更进一步优化改进方案是，所述第一导体板与第一插槽之间为间隙配合。
作为上述技术方案的更进一步优化改进方案是，所述插座外壳的前端与插头外导体的前端之间为间隙配合。
作为上述技术方案的更进一步优化改进方案是，所述第一导体板的数量设置有两个，两个第一导体板的中轴线与第二导体板的中轴线三者共面。
作为上述技术方案的更进一步优化改进方案是，所述第二导体板的宽度方向与插座内导体的宽度方向相互垂直。
本发明的有益技术效果：
所述射频同轴连接器中的射频插头与射频插座进行插接时，即使射频插头与射频插座插接不到位，该射频插头和射频插座的实际插接位置与射频插头和射频插座完全插接的位置之间的误差在3mm以内，所述射频插头和射频插座之间的阻抗变化小，信号传输几乎不受干扰；所述射频同轴连接器的容错性高，适合大规模同步应用，插拔操作简单方便，信号传递不易受损；所述射频同轴连接器在电子信息等高新技术领域有着广泛的应用前景和重要的应用价值。
附图说明
图1为本发明所述射频同轴连接器连接时的示意图；
图2为本发明所述射频插头的结构示意图；
图3为本发明所述射频插头的结构示意图(正视状态)；
图4为本发明所述射频插座的结构示意图；
图5为本发明所述第一导体板、第二导体板与射频插座的连接示意图；
图6为本发明所述射频插头与射频插座连接时的示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图 及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
在本发明的描述中，需要说明的是，除非另有说明，“多个”的含义是两个或两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”、“前端”、“后端”、“头部”、“尾部”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
如图1～6所示，所述射频同轴连接器，包括射频插头、与射频插头同轴设置的射频插座，该处的同轴设置是指射频插头的中轴线与射频插座的中心轴共线；所述射频插头与射频插座采用插接的方式活动链接，所述射频插头包括管状插头外导体1，所述插头外导体1的内部沿着插头外导体1轴向方向设置有多个第一导体板2，所述第一导体板2即板状导体，所述第一导体板2的内侧边与插头外导体1连接为一体，所述第一导体板2的外侧边设置在插头外导体1的内部，所述第一导体板2的内侧边即是第一导 体板2中与插头外导体1相连接的那一侧，所述第一导体板2的外侧边即是与第一导体板2内侧边相对的那一侧；所述插头外导体1的中心轴处固设有第二导体板3，第二导体板3也即是板状导体，所述第二导体板3与插头外导体1同轴设置，所述第二导体板3设置在插头外导体1的内部，所述第二导体板3的外侧壁与插头外导体1的内侧壁之间设置有间隙；所述射频插座包括管状插座外壳5，所述插座外壳5的前端设置有与第一导体板2相匹配的第一插槽51，所述插座外壳5的中心轴处设置有音叉状插座内导体6，所述音叉状类似于Y状结构，所述插座内导体6的首端设置有与第二导体板3相匹配的U形第二插槽61，所述插座内导体6的尾部与插座外壳5的内壁之间填充有绝缘套7。
当射频插头与射频插座进行插接时，即将射频插头的前端插入到射频插座的前端，此时，第一导体板2会插向第一插槽51，同时，第二导体板3插向音叉状插座内导体6中的U形第二插槽61，插座外壳5的前端插向插头外导体1，如图5、6所示。在上述过程中，所述插座外壳5是外导体，插座外壳5与插头外导体1接触从而电连接；第一导体板2与插座外壳5接触从而电连接，而第一导体板2又与插头外导体1电连接，因此，插座外壳5、第一导体板2之间相互电连接。第二导体板3被固定安装在插头外导体1的内部，第二导体板3与插头外导体1之间不接触，第二导体板3与插座内导体6电连接，插座内导体6被绝缘套7与插座外壳5隔开；因此，第二导体板3与插座内导体6电连接构成平行板电容器中的第一个平行板，插座外壳5、第一导体板2和插头外导体1电连接构成平行板电容器中的第二个平行板，根据平行板电容的公式可知：电容C与极板的正对面 积S、极板距离d的关系为电容C与S成正比，电容C与d成反比；在射频插头与射频插座进行对接插合的过程中，当射频插头与射频插座完全插合后，即第二导体板3的端部插到第二插槽61的槽底处为标准；在插合不到位时，即第二导体板3的端部未接触到第二插槽61的槽底，此时，即使不完全接触，第二导体板3的端部与第二插槽61的槽底之间存在间隙，在该间隙不超过3mm时，由于第二导体板3与插座内导体6配比的结构、插座外壳5、第一导体板2和插头外导体1匹配的结构，插座外壳5和插头外导体1为圆管状，再加上所述第二导体板3的宽度方向与插座内导体6的宽度方向相互垂直，这使得第二导体板3在插入到插座内导体6中的第二插槽61后，第二导体板3和插座内导体6沿着第二导体板3轴向或插座内导体6轴向的投影呈十字状，也就是说，第一个平行板和第二个平行板构成的平行板电容器C中，第一导体板2、第二导体板3、插座内导体6与插座外壳5和插头外导体1之间是处于等间距设置，极板的正对面积S始终处于固定不变的状态，极板距离d则最终取决于第二导体板3和插座内导体6之间十字状结构，该结构的第二导体板3和插座内导体6之间的极板距离d变化小，电容C的变化非常小，最终所述射频插头与射频插座之间的阻抗的变化不大，信号传输损耗小。其中，第二插槽61的槽口间距小于第二插槽61的槽底间距，这使得第二插槽61具有弹力，能够更好地与第二导体板3电接触。
进一步地，为方便插接；所述插头外导体1前端的内壁设置有内锥面结构，所述插座外壳5前端的内壁设置有外锥面结构。所述插头外导体1的前端即与射频插头进行插合的那一端；同理，所述插座外壳5的前端即 与射频插座进行插合的那一端。
进一步地，为方便插接；所述第二导体板3与第二插槽61之间为间隙配合。
进一步地，为方便插接；所述第一导体板2与第一插槽51之间为间隙配合。
进一步地，所述插座外壳5的前端与插头外导体1的前端之间为间隙配合。
进一步地，所述第一导体板2的数量设置有两个，两个第一导体板2的中轴线与第二导体板3的中轴线三者共面。同理，由于第一导体板2与第一插槽51一一对应，第二导体板3与第二插槽61一一对应；第一插槽51的数量设置有两个，两个第一插槽51的中轴线与第二插槽61的中轴线三者共面。上述设置，一方面使得射频插头与射频插座更方便插接，另一方便，有助于进一步减小极板距离d的变化。
在上述实施例中，当射频插头与射频插座进行插接动作时，由于射频插头与射频插座之间的插接结构为等间距设置，即使射频插头与射频插座插接不到位，例如本发明中的射频插头和射频插座的实际插接位置与射频插头和射频插座完全插接的位置之间的误差即使达到3mm，所述射频插头和射频插座之间的阻抗为50±0.5Ω；也就是说，本发明中的射频插头和射频插座的实际插接位置与射频插头和射频插座完全插接位置之间的误差在0～3mm，所述射频插头和射频插座之间的阻抗变化为±0.5Ω；阻抗变化非常小，能显著减少干扰。因此，本发明所述射频同轴连接器在大规模应用时，当一次性多根射频同轴连接器同时进行插接操作，即使若干个射频同 轴连接器中的射频插头与射频插座存在不完全插合的现象，只要误差在3mm以内，阻抗变化非常小，信号传输几乎不受干扰；这使得后续无需进行多次调试、调整、再次插合等操作，不但方便操作，而且还不易造成信号传递受损。本发明所述射频同轴连接器在电子信息等高新技术领域有着广泛的应用前景和重要的应用价值。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (7)

  1. 一种射频同轴连接器，包括射频插头、与射频插头相匹配的射频插座，其特征在于：所述射频插头包括管状插头外导体(1)，所述插头外导体(1)的内部沿着插头外导体(1)轴向设置有多个第一导体板(2)，所述第一导体板(2)的内侧边与插头外导体(1)连接为一体，所述第一导体板(2)的外侧边设置在插头外导体(1)的内部，所述插头外导体(1)的中心轴处固设有第二导体板(3)，所述第二导体板(3)的外侧壁与插头外导体(1)的内侧壁之间设置有间隙；所述射频插座包括管状插座外壳(5)，所述插座外壳(5)的前端设置有与第一导体板(2)相匹配的第一插槽(51)，所述插座外壳(5)的中心轴处设置有音叉状插座内导体(6)，所述插座内导体(6)的首端设置有与第二导体板(3)相匹配的第二插槽(61)，所述插座内导体(6)的尾部与插座外壳(5)的内壁之间填充有绝缘套(7)。
  2. 根据权利要求1所述的一种射频同轴连接器，其特征在于：所述插头外导体(1)前端的内壁设置有内锥面结构，所述插座外壳(5)前端的内壁设置有外锥面结构。
  3. 根据权利要求1所述的一种射频同轴连接器，其特征在于：所述第二导体板(3)与第二插槽(61)之间为间隙配合。
  4. 根据权利要求1所述的一种射频同轴连接器，其特征在于：所述第一导体板(2)与第一插槽(51)之间为间隙配合。
  5. 根据权利要求1所述的一种射频同轴连接器，其特征在于：所述插座外壳(5)的前端与插头外导体(1)的前端之间为间隙配合。
  6. 根据权利要求1所述的一种射频同轴连接器，其特征在于：所述第一导体板(2)的数量设置有两个，两个第一导体板(2)的中轴线与第二导 体板(3)的中轴线三者共面。
  7. 根据权利要求1所述的一种射频同轴连接器，其特征在于：所述第二导体板(3)的宽度方向与插座内导体(6)的宽度方向相互垂直。
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