Connector

Abstract

To provide a connector advantageous to space saving of a substrate part while stabilizing electric characteristics of a filter for merging or separating power and a signal in an electronic apparatus adopting a power supply superposition system.SOLUTION: The connector 1 includes a rod-shaped central conductive member 10, a tubular outer conductive member 20, a tubular dielectric member 30 disposed between the central conductive member 10 and the outer conductive member 20, a first filter 40 disposed on an outer peripheral surface 23 of the outer conductive member 20 and functioning as an inductor, a second filter 50 formed inside the central conductive member 10 and functioning as a capacitor, a lead wire 41 branching from a portion of the central conductive member 10 between an 10a of a front end portion of the central conductive member 10 and the second filter 50 and connected to one end portion of the first filter 40, and an input / output wire 42 connected to the other end portion of the first filter 40 and connected to an external power path. The first filter unit 40, the lead wire 41, and the input / output wire 42 are not in contact with the outer conductor 20.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a connector. [Background technology]

[0002] Conventionally, signal transmission for in-vehicle cameras and other devices has become increasingly frequent and faster due to the increasing data volume associated with higher resolution. For example, signal standards for gigabit transmission are adopted for high-speed signal transmission in in-vehicle cameras. In this case, the wiring harness connection requires signal lines compatible with point-to-point communication between the ECU (electronic control unit), which includes the image processing circuit, and the camera. As a result, wiring is required for each camera's image sensor, and the wiring and connectors are concentrated around the ECU, which can lead to an increase in the diameter of the wiring harness or the overall size of the device. Therefore, a power superposition method is being adopted, which superimposes power onto a single signal line, such as a coaxial cable, thereby reducing the number of wires required by combining the functions of acquiring signals from the camera and supplying power to drive the camera.

[0003] However, in the power supply superposition method, a filter unit for merging or separating power and signals must be provided on both the ECU board to which one end of the coaxial cable is connected and the camera board to which the other end of the coaxial cable is connected. Therefore, even when the power supply superposition method is adopted, there is a concern that the mounting area on each board will increase.

[0004] In response to this, it is conceivable to provide a filter function that combines or separates power and signals in a connector attached to the end of a coaxial cable.Patent Document 1 discloses a technology relating to a connector with a noise filter, in which a multilayer thin film filter is inserted so that it penetrates the connector pin, thereby establishing electrical continuity between the desired layer and the connector pin. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 11-329609 Summary of the Invention [Problem to be solved by the invention]

[0006] In the connector disclosed in Patent Document 1, deformation when the filter is pushed into the connector pin or deformation over time can cause conduction with layers other than the desired layer, resulting in the inability to perform the filter function and potentially causing a short circuit. Furthermore, if stress is applied to the filter when the mating connector is mated, the filter's electrical characteristics, such as capacitor capacitance, can change, potentially preventing the desired characteristics from being achieved. Furthermore, while it is possible to form a shunt-type filter circuit in the signal path that contacts the connector pin and drops it to ground, the filter circuit cannot be arranged in series, so it can only function as a low-pass filter.

[0007] The present invention has been made in view of the problems inherent in the prior art, and an object of the present invention is to provide a connector that stabilizes the electrical characteristics of a filter that combines or separates power and signals in an electronic device that employs a power superposition method, while being advantageous in saving space on the circuit board. [Means for solving the problem]

[0008] A connector according to an embodiment of the present invention comprises a rod-shaped center conductor, a cylindrical outer conductor arranged coaxially with the center conductor, a cylindrical dielectric arranged between the center conductor and the outer conductor, a first filter section arranged on the outer surface of the outer conductor and functioning as an inductor, a second filter section formed inside the center conductor and functioning as a capacitor, an extraction wire branching from between the tip of the center conductor and the second filter section in the center conductor and connected to one end of the first filter section, and an input / output wire connected to the other end of the first filter section and connected to an external power supply path, wherein the first filter section, the extraction wire, and the input / output wire are not in contact with the outer conductor. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a connector that is advantageous for saving space in the board portion while stabilizing the electrical characteristics of a filter that combines or separates power and signals in an electronic device that employs a power supply superposition method. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of a connector according to an embodiment. [Figure 2] 2 is a cross-sectional view of the connector taken along line II-II in FIG. 1. [Figure 3] FIG. 3 is a cross-sectional view of the connector taken along line III-III in FIG. [Figure 4] 4 is a partial cross-sectional view of the connector corresponding to the IV-IV section in FIG. 3. [Figure 5] FIG. 10 is a perspective view of a structural model showing the relationship between a central conductor and each filter unit. [Figure 6] 10 is a graph showing filter characteristics and the like in a connector according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] A connector according to one embodiment will be described in detail below with reference to the drawings. Note that the dimensional proportions in the drawings are exaggerated for the sake of convenience and may differ from the actual proportions.

[0012] Fig. 1 is a perspective view of a connector 1 according to one embodiment. Fig. 2 is a cross-sectional view of the connector 1 taken along line II-II in Fig. 1. The cross-sectional view in Fig. 2 is a virtual plane that is perpendicular to the connecting direction of the connector 1 and includes the central axis of a lead wire 41, which will be described later. Fig. 3 is a cross-sectional view of the connector 1 taken along line III-III in Fig. 1. The cross-sectional view in Fig. 3 is a virtual plane that includes the central axis of a central conductor 10, which will be described later.

[0013] In this embodiment, as an example, the connection direction of the connector 1 is defined as the Z direction, and the plane perpendicular to the Z direction is defined as the XY plane. The X direction and the Y direction are perpendicular to each other. Hereinafter, with the connection direction of the connector 1 as the reference, the upstream side in the Z direction, i.e., the side where the connector 1 is mounted on the board portion of the electronic device, may be referred to as the "rear," and the downstream side in the Z direction, i.e., the side where the connector 1 is mated with an external connector, may be referred to as the "front." For convenience, the electronic device in which the connector 1 is installed and the external connector mated with the connector 1 are not shown.

[0014] The connector 1 is assumed to be used in a signal transmission path that employs a power supply superposition method. In this embodiment, as an example, the connector 1 is used in a signal transmission path in an in-vehicle camera that includes a camera module and an ECU that performs image processing, etc., in which the camera module and the ECU are electrically connected by a single coaxial cable. In this case, the connectors 1 are separately installed in the camera module and the ECU. That is, a first external connector attached to one end of the coaxial cable is mated with the connector 1 installed in the camera module. A second external connector attached to the other end of the coaxial cable is mated with the connector 1 installed in the ECU.

[0015] The connector 1 is a coaxial connector including a central conductor 10, an outer conductor 20, a dielectric 30, a first filter section 40, a second filter section 50, a housing 60, and a terminal holder .

[0016] The central conductor 10 is a rod-shaped member extending in the Z direction. In this embodiment, the central conductor 10 is cylindrical. A tip end 10a, which is the front end of the central conductor 10, is electrically connected to a core wire, which is the inner conductor of a coaxial cable, when an external connector is mated with the connector 1. A rear end 10b of the central conductor 10 is electrically connected to an IC (integrated circuit) on a board of an electronic device on which the connector 1 is installed. Specifically, in a connector 1 installed in an ECU, the rear end 10b is electrically connected to a deserializer IC mounted on the board of the ECU. On the other hand, in a connector 1 installed in a camera module, the rear end 10b is electrically connected to a serializer IC mounted on the board of the camera module.

[0017] The outer conductor 20 is a cylindrical member that is disposed coaxially with the central conductor 10 and through which at least a portion of the central conductor 10 penetrates. In this embodiment, the outer conductor 20 has a cylindrical main body 21 and a flange portion 22.

[0018] The tubular body 21 is the main body of the outer conductor 20, and is cylindrical in this embodiment. When the external connector is mated with the connector 1, the front end of the tubular body 21 is electrically connected to the braided shield, which is the outer conductor of the coaxial cable.

[0019] The cylindrical main body 21 also has a first through hole 21a that penetrates between the outer peripheral surface 23 and the inner peripheral surface 24 of the outer conductor 20, which is also the inner peripheral surface of the cylindrical main body 21. The first through hole 21a allows the extraction wire 41, which is routed from the center conductor 10 arranged inside the cylindrical main body 21 to the first filter section 40 arranged outside the cylindrical main body 21, to pass through. In this embodiment, the penetration direction of the first through hole 21a is along the X direction. The extraction wire 41 routed through the first through hole 21a is not in contact with the cylindrical main body 21. In other words, the opening diameter of the first through hole 21a is larger than the outer diameter of the extraction wire 41.

[0020] The flange portion 22 is an annular portion integrated with the rear end portion of the tubular main body 21. A portion of the flange portion 22 is electrically connected to a GND (ground) circuit of an electronic device in which the connector 1 is installed. In this embodiment, the inner circumferential surface of the flange portion 22 is continuous with the inner circumferential surface of the tubular main body 21, forming an inner circumferential surface 24. The outer diameter of the flange portion 22 is larger than the outer diameter of the tubular main body 21.

[0021] The flange portion 22 also has second through holes 25 that penetrate from the front side to the rear side along the Z direction. The second through holes 25 allow the input / output wires 42 to pass through from the first filter portion 40 toward the rear side of the flange portion 22. The input / output wires 42 routed through the second through holes 25 are not in contact with the flange portion 22. In other words, the opening diameter of the second through holes 25 is larger than the outer diameter of the input / output wires 42.

[0022] The dielectric 30 is a cylindrical member made of ceramic or the like and disposed between the central conductor 10 and the outer conductor 20. In this embodiment, the dielectric 30 is cylindrical in shape to match the shape of the outer peripheral surface of the central conductor 10 and the shape of the inner peripheral surface 24 of the outer conductor 20. The outer peripheral surface 30a of the dielectric 30 is in close contact with the inner peripheral surface 24 of the outer conductor 20. The inner peripheral surface 30b of the dielectric 30 is in close contact with at least a part of the outer peripheral surface of the central conductor 10. However, the dielectric 30 has an opening 30c at its front side for exposing the tip portion 10a of the central conductor 10.

[0023] The dielectric 30 also has a through hole 31 penetrating between the outer peripheral surface 30a and the inner peripheral surface 30b. An extracting wire 41 is routed through the through hole 31 from the central conductor 10 disposed inside the dielectric 30 to the first filter portion 40 disposed outside the tubular main body 21 of the outer conductor 20. That is, the through hole 31 is continuous in series with the first through hole 21a formed in the tubular main body 21. In this embodiment, the penetration direction of the first through hole 21a is along the X direction, and therefore the penetration direction of the through hole 31 is also along the X direction.

[0024] Fig. 4 is an enlarged cross-sectional view of a portion of the connector 1, corresponding to the section IV-IV in Fig. 3. In Fig. 4, the general shapes and arrangements of the first filter section 40 and the second filter section 50 are shown.

[0025] The first filter section 40 is a filter circuit that functions as an inductor. The first filter section 40 is disposed on a partial circumferential region of the outer peripheral surface 23 of the outer conductor 20 without contacting the outer conductor 20. In this embodiment, the first filter section 40 has a so-called wound shape in which a single thin wire, which is a conductor, is wound along the shape of the outer peripheral surface 23. One end of the thin wire that constitutes the first filter section 40 is continuous with the output line 41. The other end of the thin wire that constitutes the first filter section 40 is continuous with the input / output line 42. In other words, the first filter section 40 has a shunt-type structure branched from the central conductor 10, and can be regarded as an inductor that functions as a low-pass filter that is intended to transmit only DC (direct current).

[0026] As a structural example of the first filter section 40, first, the central conductor 10 and the thin wires constituting the first filter section 40 are connected by a single conductor, an output wire 41. The output wire 41 extends directly outward from the central conductor 10 and penetrates through a through hole 31 formed in the dielectric 30 and a first through hole 21a formed in the tubular main body 21. Specifically, the output wire 41 branches off from the central conductor 10 between the tip end portion 10a of the central conductor 10 and the second filter section 50. In this embodiment, the penetration directions of the through hole 31 and the first through hole 21a are along the X direction, and therefore the extension direction of the output wire 41 is also along the Z direction.

[0027] First, there is a disk-shaped front-row coil 40a in which the thin wires constituting the first filter section 40 are wound around the outer circumferential surface 23, starting from the connection point with the extraction wire 41, with the thin wires not contacting each other and at a constant position in the Z direction. A plurality of similar disk-shaped coils are stacked around the front-row coil 40a at regular intervals in the direction opposite to the Z direction. Adjacent coils are connected to each other at the outermost or innermost periphery by a single thin wire. The end of the thin wire constituting the last-row coil 40b, closest to the flange section 22, is connected to the input / output line 42.

[0028] The input / output lines 42 extend from the first filter unit 40 in the direction opposite to the Z direction, pass through second through-holes 25 formed in the flange unit 22, and are routed behind the flange unit 22. Terminals of the input / output lines 42 routed behind the flange unit 22 are electrically connected to an IC chip or the like on a board of an electronic device on which the connector 1 is installed. Specifically, in the connector 1 installed in an ECU, terminals of the input / output lines 42 are electrically connected to a power supply path and receive a supply of power. That is, the input / output lines 42 in the ECU function as power input lines. On the other hand, in the connector 1 installed in a camera module, terminals of the input / output lines 42 are electrically connected to a serializer IC mounted on a board of the camera module and supply power for driving the camera module. That is, the input / output lines 42 in the camera module function as power output lines.

[0029] The second filter section 50 is a filter circuit that functions as a capacitor. The second filter section 50 is formed inside the central conductor 10. In this embodiment, the second filter section 50 is disposed in a portion of the central conductor 10 that is located inside the first filter section 40. In other words, the second filter section 50 can be regarded as a capacitor having a series-connected structure in the signal path. Here, in this embodiment, the second filter section 50 functions as a band-pass filter that transmits signals from the low-frequency band to the high-frequency band.

[0030] The material of each conductor part of the central conductor 10, the outer conductor 20, and the first filter part 40 is not particularly limited, but may be an aluminum alloy, a copper alloy, etc. Furthermore, at least a part of each conductor part may be formed of a printed circuit body or may be manufactured by three-dimensional metal additive manufacturing.

[0031] The housing 60 is an exterior member formed of a synthetic resin or the like, and holds and protects a unit composed of the central conductor 10, the outer conductor 20, the dielectric 30, and the first filter section 40, including the second filter section 50. In this embodiment, the housing 60 has a fitting section 61 and a base section 62.

[0032] The fitting portion 61 is a portion into which an external housing constituting the external connector fits when the external connector is fitted to the connector 1. In this embodiment, the fitting portion 61 is cylindrical. In the internal space surrounded by the inner peripheral surface 63 of the housing 60, at least a portion of each of the central conductor 10, the outer conductor 20, and the dielectric 30, and the first filter section 40 are coaxially arranged.

[0033] The base portion 62 is a plate-like portion integrated with the rear end portion of the fitting portion 61. When the connector 1 is installed in a camera module or an ECU, the base portion 62 is held by a circuit board portion of the camera module or the ECU. An annular groove portion 62a for fitting the terminal holder 70 is formed in a portion of the inner circumferential surface 63 of the housing 60 that corresponds to the inner surface of the base portion 62.

[0034] The housing 60 also has an annular partition wall 64 that separates the internal space into a front space S1 and a rear space S2. The front space S1 is a spatial region into which the conductor portions constituting the external connector are introduced when the external connector is mated with the connector 1, and accommodates the respective tip portions of the center conductor 10, the outer conductor 20, and the dielectric 30. The rear space S2 accommodates the first filter section 40. The partition wall 64 supports the outer conductor 20 by bringing its inner peripheral surface 64a into contact with the outer peripheral surface 23 of the outer conductor 20.

[0035] Furthermore, the housing 60 may have a claw portion 66 on the outer periphery of the mating portion 61 that engages with a part of the external housing that constitutes the external connector when the external connector is mated to the connector 1, thereby preventing the external connector from falling off from the connector 1.

[0036] The terminal holding portion 70 is made of synthetic resin or the like, and is an annular member that holds the flange portion 22 of the outer conductor 20 at its inner circumferential portion 71 and is fitted into the annular groove portion 62 a of the housing 60 .

[0037] The terminal holding portion 70 may have a front inner peripheral surface 71a and a rear inner peripheral surface 71b on the inner peripheral portion 71. The front inner peripheral surface 71a is set to have approximately the same diameter as the inner peripheral surface 63 of the housing 60, and together with the rear space S2, forms part of the spatial region that houses the first filter portion 40 when the terminal holding portion 70 is fitted into the annular groove portion 62a. The rear inner peripheral surface 71b comes into contact with the flange portion 22 and directly holds the flange portion 22.

[0038] In addition, the terminal holding portion 70 may have a protrusion 72a on the outer circumferential portion 72 that fits tightly into a portion of the annular groove portion 62a when the terminal holding portion 70 is fitted into the annular groove portion 62a, thereby preventing the terminal holding portion 70 from falling off from the housing 60.

[0039] Next, the operation and effects of the connector 1 will be described.

[0040] The connector 1 includes a rod-shaped center conductor 10, a cylindrical outer conductor 20 coaxially disposed about the center conductor 10, and a cylindrical dielectric 30 disposed between the center conductor 10 and the outer conductor 20. The connector 1 also includes a first filter section 40 disposed on an outer peripheral surface 23 of the outer conductor 20 and functioning as an inductor, and a second filter section 50 formed inside the center conductor 10 and functioning as a capacitor. The connector 1 also includes a lead wire 41 branching from the center conductor 10 between a tip end 10a of the center conductor 10 and the second filter section 50 and connected to one end of the first filter section 40. The connector 1 also includes an input / output line 42 connected to the other end of the first filter section 40 and connected to an external power supply path. The first filter section 40, the lead wire 41, and the input / output line 42 are not in contact with the outer conductor 20.

[0041] As a comparative example, consider a typical automotive camera that employs a power supply superposition method to electrically connect the camera module and ECU via a single coaxial cable. In this case, a filter circuit functioning as a capacitor is mounted on the ECU's board in the signal transmission path between the connector to which the coaxial cable is connected and the deserializer IC. Additionally, a filter circuit functioning as an inductor is mounted on the ECU's board in the power supply path electrically connected to the connector to which the coaxial cable is connected. In other words, the ECU's board is equipped with two types of filter circuits for merging power into the signal transmission path, requiring a mounting area for these filter circuits. Meanwhile, the camera module's board is equipped with a filter circuit functioning as a capacitor in the signal transmission path between the connector to which the coaxial cable is connected and the serializer IC. Additionally, the camera module's board is equipped with a filter circuit functioning as an inductor in the power supply path electrically connected to the connector to which the coaxial cable is connected and that supplies power to the serializer IC. In other words, the camera module's board is equipped with two types of filter circuits for separating power from the signal transmission path, requiring a mounting area for these filter circuits.

[0042] In contrast to this, the connector 1 according to this embodiment includes therein a first filter section 40 that functions as an inductor and a second filter section 50 that functions as a capacitor.

[0043] Here, the first filter section 40 is disposed on the outer peripheral surface 23 of the outer conductor 20. One end of the first filter section 40 is connected to an output line 41 branching from the central conductor 10 between the tip end 10a of the central conductor 10 and the second filter section 50, and the other end of the first filter section 40 is connected to an input / output line 42 connected to an external power supply path. The first filter section 40, the output line 41, and the input / output line 42 are not in contact with the outer conductor 20. In this case, the first filter section 40 has a shunt-type structure and can function as a low-pass filter. Therefore, the first filter section 40 can replace a filter circuit functioning as an inductor, which has conventionally been mounted on a circuit board of an electronic device such as an ECU or a camera module.

[0044] On the other hand, the second filter section 50 is formed inside the central conductor 10. In this case, the second filter section 50 has a series-connected structure in the signal path inside the connector 1, and can function as a high-pass filter or a band-pass filter. Therefore, the second filter section 50 can be used as a substitute for a filter circuit that functions as a capacitor, which has conventionally been mounted on the board of an electronic device such as an ECU or a camera module.

[0045] In other words, if the connector 1 is installed on the circuit board of an electronic device such as an ECU as a connector for connecting a coaxial cable, there is no need to mount a filter circuit that functions as an inductor or capacitor on each circuit board. Therefore, the connector 1 realizes space saving in the mounting area on the circuit board of an electronic device that employs a power supply superposition method. For example, when considering the circuit board of an ECU or camera module that constitutes an in-vehicle camera, the mounting area of ​​a conventional filter circuit is 100 mm 2 Therefore, by using the connector 1, the mounting area is no longer required.

[0046] Furthermore, in conventional connectors in which a multilayer thin-film filter penetrates and contacts the connector pins, the filter may deform when the connector is assembled or when a mating connector is mated. In contrast, in the connector 1 according to the present embodiment, the second filter section 50 is formed inside the central conductor 10 so as to have a series-connection structure in the signal path, making the second filter section 50 less likely to deform. Therefore, compared to such conventional connectors, the electrical characteristics of the filter can be more stabilized.

[0047] Fig. 5 is a perspective view of a structural model showing the relationship between the central conductor 10 and the first and second filter sections 40 and 50. In Fig. 5, only the front-row coil 40a of the first filter section 40 is shown as an annular body, and specific illustrations of the other coils are omitted.

[0048] FIG. 6 is a graph showing, as an example, the results of the reflection characteristics, transmission characteristics, and filter characteristics of connector 1 derived based on the structural model of FIG. 5. In FIG. 6, the horizontal axis is frequency [GHz], and the vertical axis is attenuation [dB]. C1, represented by a solid line in FIG. 6, is the result of the reflection characteristics corresponding to the direction of the arrow, similarly represented by the solid line in FIG. 5. C2, represented by a dashed line in FIG. 6, is the result of the transmission characteristics corresponding to the direction of the arrow, similarly represented by the dashed line in FIG. 5. C3, represented by a dashed line in FIG. 6, is the result of the filter characteristics corresponding to the direction of the arrow, similarly represented by the dashed line in FIG. 5.

[0049] As shown in FIG. 6, according to this structural model, in the specified frequency band, the change in attenuation is suppressed not only in the reflection characteristics and transmission characteristics but also in the filter characteristics, that is, the electrical characteristics of the filter are stabilized.

[0050] As described above, according to this embodiment, in electronic devices that employ a power supply superposition method, a connector 1 can be provided that stabilizes the electrical characteristics of a filter for merging or separating power and signals, while being advantageous for saving space in the board section.

[0051] In the connector 1, the second filter section 50 is formed inside the central conductor 10, and therefore may be configured as a printed circuit board or may be manufactured by three-dimensional metal additive manufacturing, for example. By forming the second filter section 50 in this way, the connector 1 does not need to configure the filter section using, for example, chip components, and therefore does not require materials and processes related to soldering, etc., and ultimately can reduce manufacturing costs.

[0052] In the connector 1, the second filter section 50 may be a band-pass filter that transmits signals from a low frequency band to a high frequency band.

[0053] As described above, the second filter section 50 is formed inside the central conductor 10. Therefore, according to the connector 1, by appropriately adjusting the structure of the portion corresponding to the second filter section 50, it is possible to make it function as a bandpass filter that can transmit not only high-frequency band signals but also low-frequency band signals. In this case, the central conductor 10 incorporating the second filter section 50 can, for example, effectively transmit both low-speed control signals and high-speed video signals.

[0054] In the connector 1, the first filter section 40 may have a winding shape in which a single conductor wire is wound along the shape of the outer peripheral surface 23 of the outer conductor 20. One end of the conductor wire may be continuous with the extraction wire 41, and the other end of the conductor wire may be continuous with the input / output wire 42.

[0055] The connector 1 can be advantageous in that the first filter section 40 is configured with a printed circuit board or manufactured by three-dimensional metal additive manufacturing. Forming the first filter section 40 in this manner eliminates the need to configure the filter section with chip components, for example, in the connector 1, thereby eliminating the need for members and processes related to soldering and the like, and ultimately reducing manufacturing costs.

[0056] Furthermore, the connector 1 may include a housing 60 that houses at least a portion of each of the center conductor 10, the outer conductor 20, and the dielectric 30, and the first filter section 40. The connector 1 may also include a terminal holding section 70 that holds the outer conductor 20 in a state in which the center conductor 10 and the dielectric 30 are enclosed and the first filter section 40 is supported, and that is fitted into the housing 60.

[0057] In this case, first, before assembling the connector 1, the first filter section 40 is formed into a predetermined shape and held by the terminal holding section 70. Thereafter, the terminal holding section 70 is assembled to the housing 60, which is prepared separately, so that the first filter section 40 is fitted so as to be sandwiched between a part of the housing 60 and the terminal holding section 70. Therefore, according to the connector 1, the first filter section 40 can be reassembled with respect to the housing 60, and the shape or material of the first filter section 40 can be easily changed to match the desired filter characteristics.

[0058] Although one embodiment has been described above, the embodiment is not limited to this, and various modifications are possible within the scope of the gist of the embodiment. [Explanation of symbols]

[0059] 1 connector 10 Center conductor 10a Tip 20 outer conductor 23 Outer surface 30 Dielectric 40 First filter section 41 Exit wire 42 Input / Output Lines 50 Second filter section 60 cabinets 70 Terminal holding part

Claims

1. a rod-shaped central conductor; a cylindrical outer conductor arranged coaxially with the central conductor; a cylindrical dielectric disposed between the central conductor and the outer conductor; a first filter section disposed on an outer peripheral surface of the outer conductor and functioning as an inductor; a second filter portion formed inside the central conductor and functioning as a capacitor; a lead wire branching from the central conductor between a tip end of the central conductor and the second filter section and connected to one end of the first filter section; an input / output line connected to the other end of the first filter unit and connected to an external power supply path, The first filter section, the lead wire, and the input / output wire are not in contact with the outer conductor.

2. 2. The connector according to claim 1, wherein the second filter section is a band-pass filter that transmits signals from a low frequency band to a high frequency band.

3. the first filter section has a winding shape in which a single conducting wire is wound along the shape of the outer peripheral surface of the outer conductor, One end of the conductor is continuous with the lead wire, 3. The connector according to claim 1, wherein the other end of the conductor is continuous with the input / output line.

4. a housing that accommodates at least a portion of each of the central conductor, the outer conductor, and the dielectric, and the first filter section; 3. The connector according to claim 1, further comprising: a terminal holding portion that holds the outer conductor in a state in which the outer conductor encloses the center conductor and the dielectric and supports the first filter portion, and that is fitted into the housing.

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