JP2005221421A - Implement used for measuring characteristic of connector, and method of measuring characteristic of connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an implement used for evaluating a characteristic of a connector capable of measuring accurately the characteristic of one testing connector. <P>SOLUTION: This implement 20 of the present invention comprises a conductive material used when evaluating the characteristic of the testing connector 10 comprising (a) the center conductor 11, (b) a dielectric layer 14 for covering the center conductor 11, and (c) an outside conductor 15 for covering a portion 14B of a dielectric layer positioned in one end side of the center conductor 11, under the condition where one end 13 of the center conductor 11 in the testing connector 10 is connected to the first connector 30, and where the other end 12 of the center conductor 11 in the testing connector 10 is connected to the second connector 40, using a characteristic measuring instrument provided with the first connector and the second connector, and is provided with (A) a through hole 21 for inserting a portion 14A of the dielectric layer positioned in the other end side of the center conductor not covered with the outside conductor 15, and (B) a connection part 22 connected with the second connector 40. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a jig used for measuring the characteristics of a connector such as a high-frequency coaxial connector used for wireless communication and the like, and a method for measuring the characteristics of the connector.

  In order to measure high-frequency characteristics such as a reflection coefficient and a passage loss of a high-frequency coaxial connector used for wireless communication or the like, conventionally, a characteristic measuring apparatus 50 (for example, from a network analyzer for high-frequency measurement) as schematically shown in FIG. Used). The characteristic measuring device 50 is provided with a first connector 30 and a second connector 40, and the characteristic measuring device 50 and the first connector 30 are connected by a first cable 39. The second connector 40 is connected by a second cable 49. Note that schematic views in which a part of the first connector 30 and the second connector 40 are cut out are shown in FIGS. 3B and 3C, respectively.

  In the measurement of characteristics of a test connector such as a high-frequency coaxial connector such as an SMA type coaxial connector, a first connector 30 that is a plug type (also called male type) coaxial connector and a jack type (also called female type or receptacle type) are used in advance. ) The characteristic measuring device 50 is calibrated by connecting the second connector 40 which is a coaxial connector. The first connector 30 and the terminator 60 shown in FIG. 18 are screwed together, and the screwing portion 36 (see FIG. 3B) of the first connector 30 and the screwing portion 66 of the terminator 60 are screwed together. In some cases, calibration is performed by connecting.

  In measuring the characteristics of the connector under test, a strip line or a coplanar as shown in FIGS. 16 and 17 is prepared in advance. 16A is a plan view schematically showing a state in which the two test connectors 10 and 70 are connected to both ends of the strip line 401 by soldering, and FIG. It is a schematic diagram which shows a state when the test connectors 10 and 70 in the schematic plan view of FIG. 17A and 17B show a state in which the two test connectors 10 and 70 shown in FIG. 16A are connected to both ends of the stripline 401 by soldering, respectively. It is the typical front view and typical sectional view of the stripline holding stand 410.

  The strip line 401 has an ultra-thin copper foil on both surfaces of a material having a low dielectric constant and low dielectric loss (for example, a glass cloth base material impregnated with a fluorine-based resin having a relative dielectric constant of 2.2). The copper foil in the copper-clad laminate on which several μm to several tens of μm are laminated is processed into an arbitrary shape by processing such as precision etching to form a 50 ohm line. In FIG.16 and FIG.17, the part of the copper clad laminated board from which the copper foil was removed was shown with the reference number 400, and the hatched part was attached | subjected to this part. The patterned copper foil (strip line 401) is also shaded.

  The stripline holding base 410 made of a metal material such as aluminum or a conductive material is composed of a base 411 and a connector mounting portion 412 extending upward from both ends of the base 411. The connector mounting portion 412 has a through hole 413 for inserting the protruding dielectric layer portions 14A and 74A of the test connectors 10 and 70, and screw holes for fixing the test connectors 10 and 70 (see FIG. Not shown). The copper-clad laminate 400 is fixed to the top surface of the base portion 411 between the connector mounting portions 412. For the description of the reference numerals given to the components of the test connectors 10 and 70, refer to the description of the test connectors 10 and 70 in the embodiments described later.

  When measuring the characteristics of the test connectors 10 and 70, the protruding dielectric layer portions 14A and 74A of the test connectors 10 and 70 are inserted into the through holes 413 provided in the connector mounting portion 412, and the test connector 10, 70 70 is screwed to the connector mounting portion 412 with screws 19 and 79. Then, the other ends 12 and 72 of the center conductors 11 and 71 of the test connector 10 and the test connector 70 are soldered to the strip line 401. This state is shown in FIGS. 16A and 16B and FIGS. 17A and 17B. One end 13 of the center conductor 11 of the test connector 10 has, for example, a female shape, and the other end 12 of the center conductor 11 of the test connector 10 has, for example, a male shape. Moreover, the one end 73 of the center conductor 71 of the test connector 70 has, for example, a male shape, and the other end 72 of the center conductor 71 of the test connector 70 also has, for example, a male shape. Then, the first connector 30 that is a plug-type coaxial connector is connected to the test connector 10, the second connector 40 that is a jack-type coaxial connector is connected to the test connector 70, and the base 411 is grounded, The characteristics of the test connectors 10 and 70 are measured (for example, collection of high-frequency data such as reflection coefficient and passage loss).

  Alternatively, as shown in FIGS. 19A and 19B, the test connector 10 and the test connector 70A are connected via a jig 500 and the characteristics of the test connectors 10 and 70A are measured. There is also. Here, a schematic plan view showing a state where the test connector 10 and the test connector 70A are connected via the jig 500 is shown in FIG. 19A, and a schematic cross-sectional view is shown in FIG. Shown in B). The jig 500 is made of gold or other material such as brass or stainless steel, and the through hole 501 for inserting the protruding dielectric layer portions 14A and 74A of the test connectors 10 and 70A, and Screw holes (not shown) for fixing the test connectors 10 and 70A are provided.

  One end 13 of the center conductor 11 of the test connector 10 has, for example, a female shape, and the other end 12 of the center conductor 11 of the test connector 10 has, for example, a male shape. One end 73 of the center conductor 71 of the test connector 70A has, for example, a male shape, and the other end 72A of the center conductor 71 of the test connector 70A has, for example, a female shape. Then, the protruding dielectric layer portions 14A and 74A of the test connectors 10 and 70A are inserted into the through holes 501 provided in the jig 500, and the other end 12 of the central conductor 11 of the test connector 10 and the test connector. The other end 72A of the central conductor 71 of 70A is connected. Alternatively, the other end of the center conductor 11 of the test connector 10 and the other end of the center conductor 71 of the test connector 70A can be connected using a relay pin or the like. Then, the test connectors 10 and 70 </ b> A are screwed to the jig 500 with screws 19 and 79. Then, the first connector 30 that is a plug-type coaxial connector is connected to the test connector 10, the second connector 40 that is a jack-type coaxial connector is connected to the test connector 70A, and the jig 500 is grounded. Then, the characteristics of the test connectors 10 and 70A are measured (for example, collection of high frequency data such as reflection coefficient and passage loss). For the description of the reference numerals given to the components of the test connector 70A, refer to the description of the test connector 70A in the embodiment described later.

  In the characteristic measurement using the stripline 401 and the jig 500 described above, it is impossible to measure only the characteristic of any one of the test connectors 10, 70, and 70A. Further, the measurement result includes the influence of the soldering part 420 and the strip line 401. Therefore, with the method described above, it is impossible to accurately measure the characteristics of a single test connector alone.

  Accordingly, it is an object of the present invention to provide a jig used for connector characteristic measurement and a connector characteristic measurement method that enable accurate measurement of the characteristic of one test connector.

The jig used for measuring the characteristics of the connector of the present invention to achieve the above object is
Using a characteristic measuring device comprising a first connector and a second connector;
(A) center conductor,
(B) a dielectric layer covering the central conductor, and
(C) an outer conductor covering a portion of the dielectric layer located on one end side of the central conductor;
Used when measuring the characteristics of the connector under test with one end of the center conductor of the connector under test connected to the first connector and the other end of the center conductor of the connector under test connected to the second connector A jig made of a conductive material,
(A) a through hole into which a portion of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor is inserted, and
(B) a connecting portion to which the second connector is connected;
It is characterized by having.

In order to achieve the above object, the method for measuring the characteristics of the connector of the present invention comprises:
Using a characteristic measuring device comprising a first connector and a second connector;
(A) center conductor,
(B) a dielectric layer covering the central conductor, and
(C) an outer conductor covering a portion of the dielectric layer located on one end side of the central conductor;
Measure the characteristics of the connector under test
(A) a through hole into which a portion of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor is inserted, and
(B) a connecting portion to which the second connector is connected;
A connector characteristic measurement method using a jig made of a conductive material, comprising:
Connect one end of the center conductor of the test connector to the first connector, and insert the part of the dielectric layer located on the other end of the center conductor that is not covered by the outer conductor of the test connector into the through hole of the jig The outer conductor of the test connector and the jig are brought into contact with each other, and the other end of the central conductor of the test connector is connected to the second connector by connecting the connecting portion of the jig and the second connector. In this state, the characteristic of the test connector is measured by grounding the jig.

  Jig used for connector characteristic measurement (characteristic evaluation) of the present invention, or connector characteristic measurement method (characteristic evaluation method) of the present invention (hereinafter collectively referred to simply as the present invention) The size (diameter) of the through hole provided in the jig is surely inserted into the dielectric layer located at the other end of the center conductor not covered by the outer conductor of the connector under test. It is necessary to make the size (diameter) that can be obtained, in other words, the size (diameter) that can achieve coaxial impedance matching with the test connector.

  In the present invention, the cross-sectional shape of the through hole in a direction perpendicular to the axis of the jig is a circle, and the cross-sectional shape of the connection portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole. Can be configured to be provided with a screwing portion to be screwed with the second connector. This configuration is referred to as a first configuration for convenience.

  Alternatively, in the present invention, the cross-sectional shape of the through hole in a direction perpendicular to the axis of the jig is circular, and the cross-sectional shape of the connection portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole. It is possible to adopt a configuration in which a threaded portion that is threadedly engaged with the second connector is provided on the outer surface. This configuration is referred to as a second configuration for convenience.

  Alternatively, in the present invention, the cross-sectional shape of the through hole in a direction perpendicular to the axis of the jig is circular, and the cross-sectional shape of the connection portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole. A concave portion that engages with the second connector may be provided on the outer surface of the first connector. This configuration is referred to as a third configuration for convenience. This type of connector in the third configuration or the fourth configuration described below is called a push-on type.

  Alternatively, in the present invention, the cross-sectional shape of the through hole in a direction perpendicular to the axis of the jig is circular, and the cross-sectional shape of the connection portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole. A convex portion that engages with the second connector may be provided on the inner surface of the first connector. This configuration is referred to as a fourth configuration for convenience.

  In the present invention, examples of the conductive material constituting the jig include brass (brass), stainless steel, copper, zinc, iron and other metal materials and alloy materials. The surface of the jig may be subjected to various types of plating such as gold plating or nickel plating of about 0.1 μm to several μm.

  The test connector composed of the center conductor, the dielectric layer, and the outer conductor can be a known connector. For example, the outer conductor can be obtained by performing various surface treatments on a conductive material such as brass (brass), stainless steel, zinc, copper, or iron. The dielectric layer can be made of a material having a low dielectric constant, such as a fluorine resin, a polypropylene resin, a polyethylene resin, or a polyacetal resin. The central conductor can be made of a springy conductive material such as beryllium copper or phosphor bronze (for example, a wire or plate) plated with gold, or a spring such as brass or stainless steel. It can also be comprised from the electroconductive material (for example, wire and board | plate material) which does not have property.

  Examples of test connectors in the present invention include SMA type coaxial connectors, SMB type coaxial connectors, N type coaxial connectors, BNC type coaxial connectors, and TNC type coaxial connectors. The test connector may be a plug type (also called male type) coaxial connector or a jack type (also called female type or receptacle type) coaxial connector depending on the specifications. Further, the structure (configuration) of one end and the other end of the central conductor constituting the test connector may have a male shape or a female shape depending on the specifications.

  An example of the characteristic measuring device used in the present invention is a network analyzer for high frequency measurement. Further, as the first connector provided in the characteristic measuring device, a plug-type coaxial connector or a jack-type coaxial connector can be cited according to the test connector, and a jack-type coaxial connector can be used as the second connector. Alternatively, a plug type coaxial connector can be mentioned. As a characteristic measurement of the test connector, for example, high frequency data such as a reflection coefficient and a passage loss can be collected.

In the present invention, as a specific method of connecting one end of the center conductor of the test connector to the first connector and connecting the other end of the center conductor of the test connector to the second connector,
(1) One end or the other end of the center conductor of the test connector has a female shape, and the center conductor constituting the first connector or the second connector has a male shape. (1) One end or the other end of the center conductor of the test connector has a male shape, and a method for connecting one end or the other end of the center conductor to the center conductor constituting the first connector or the second connector. The central conductor constituting the first connector or the second connector has a female shape, whereby one end or the other end of the central conductor of the test connector and the center constituting the first connector or the second connector. A method of connecting to a conductor (3) A method of connecting using a relay pin can be exemplified.

  According to the present invention, since the coaxial connector opening structure can be configured by the jig and the test connector by attaching the jig to the test connector, the characteristic measurement of the test connector can be performed while maintaining the coaxial structure. Therefore, it is possible to measure high frequency characteristics such as a reflection coefficient and a passage loss with a single test connector without including a stripline or other coaxial connectors. That is, the characteristics of the connector under test can be accurately measured alone without being affected by other parts and members.

  Hereinafter, the present invention will be described based on examples with reference to the drawings.

  Example 1 relates to a jig used for connector characteristic measurement (characteristic evaluation) and a connector characteristic measurement method (characteristic evaluation method) according to the present invention. More specifically, the jig has a first configuration. . FIG. 1 shows a schematic cross-sectional view of the jig 20, the test connector 10, and the first connector 30 and the second connector 40 provided in the characteristic measuring apparatus in the first embodiment. An enlarged schematic cross-sectional view of the test connector 10 is shown in FIG. 2A, and a schematic cross-sectional view just before the test connector 10 is attached to the jig 20 is shown in FIG. A schematic cross-sectional view of the test connector 10 attached to the jig 20 is shown in FIG. Further, FIG. 3A shows a state immediately before the sample connector 10 is attached to the jig 20 and the first connector 30 and the second connector 40 are connected. FIGS. 3B and 3C are schematic views in which a part of the second connector 40 is cut away. Moreover, the typical front view of the jig | tool 20 is shown to (A) of FIG. 4, and the typical side view and sectional drawing of the jig | tool 20 are shown to (B) of FIG. Furthermore, the schematic diagram of the characteristic measuring apparatus 50 provided with the 1st connector 30 and the 2nd connector 40 is shown in FIG.

  The test connector 10 in Example 1 is an SMA type coaxial connector and is a jack type (female type or receptacle type) coaxial connector. The test connector 10 includes a central conductor 11 made of a conductive material having a spring property such as beryllium copper or phosphor bronze (for example, a wire or plate) plated with gold, etc., and a fluorine-based resin that covers the central conductor 11 And an outer conductor 15 formed by applying various surface treatments to a conductive material such as brass or stainless steel covering a portion 14B of the dielectric layer located on one end side of the central conductor 11. Has been. The center conductor 11 and the outer conductor 15 are insulated by the dielectric layer 14. A screwing portion 16 is provided on the outer surface of the outer conductor 15. One end 13 of the center conductor 11 of the test connector 10 has a female shape, and the other end 12 of the center conductor 11 of the test connector 10 has a male shape. Specifically, a hole is provided in one end 13 of the center conductor 11 of the test connector 10 so that the protruding portion 32 of the center conductor 31 of the first connector 30 can be inserted. On the other hand, the other end 12 of the center conductor 11 of the test connector 10 protrudes from a portion 14B of the dielectric layer located on one end side of the center conductor 11.

  The jig 20 according to the first embodiment uses a characteristic measuring device 50 (specifically, a network analyzer for high frequency measurement) including the first connector 30 and the second connector 40, and the characteristics of the connector 10 under test. When the measurement is performed with one end 13 of the center conductor 11 of the test connector 10 connected to the first connector 30 and the other end 12 of the center conductor 11 of the test connector 10 connected to the second connector 40. It is a jig used. The jig 20 is made of a conductive material. More specifically, the jig 20 is made of stainless steel having a surface plated with gold of about 0.1 μm to several μm.

And the jig 20 in Example 1 is:
(A) a through hole 21 into which a portion 14A of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor 15 is inserted; and
(B) the connection part 22 to which the second connector 40 is connected;
It has.

  More specifically, in the jig 20 according to the first embodiment, the cross-sectional shape of the through hole 21 in the direction perpendicular to the axis of the jig 20 is circular, and the connection portion 22 in the direction perpendicular to the axis of the jig 20. The cross-sectional shape is a concentric circle concentric with the through-hole 21, and a threaded portion 23 that is threadedly engaged with the second connector 40 is provided on the inner surface of the connecting portion 22. That is, the jig 20 in Example 1 is a plug type (male type). Further, a hole 24 is provided in the outer peripheral portion of the jig 20, and a screw hole 25 is provided on the surface of the jig 20 that contacts the test connector 10. The length L of the through-hole 21 along the axis of the jig 20 (see FIG. 2B) is the length of the dielectric layer portion 14A located on the other end side of the central conductor not covered by the outer conductor 15. It is roughly equal to the length.

  Then, a portion 14A of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor 15 of the test connector 10 is inserted into the through hole 21 of the jig 20 and extends from the end of the outer conductor 15. Screws 19 are screwed into screw holes 25 provided in the jig 20 through holes (not shown) provided in the flange portion 15A. By obtaining such an assembly of the test connector 10 and the jig 20, a coaxial connector opening structure can be obtained. The diameter of the through hole 21 is large enough to insert the dielectric layer portion 14 </ b> A of the test connector 10, that is, large enough to achieve coaxial impedance matching with the test connector 10. Further, the outer shape of the jig 20 is large enough to screw the test connector 10, and the thickness of the jig 20 (the length in the axial direction of the jig) t (see FIG. 2B) is: The thickness (the length in the axial direction of the jig) that can form the coaxial connector opening structure, or the thickness (the length in the axial direction of the jig) is greater. The jig thickness is the length of the jig in the axial direction. In the following description, the term “thickness of the jig” is used in the same meaning.

  The first connector 30 formed of a plug-type coaxial connector includes a center conductor 31, a dielectric layer 34 that covers the center conductor 31, and an outer conductor 35 that covers the dielectric layer 34. The constituent materials of the center conductor 31, the dielectric layer 34, and the outer conductor 35 may be the same as those constituent materials in the test connector 10. However, the material composing the central conductor 31 can also be composed of a conductive material having no spring property (for example, a wire or plate made of brass or stainless steel). The central conductor 31 protrudes from the end of the dielectric layer 34, and the protrusion 32 has a male shape. In the figure, reference numeral 37 is a coupling, reference numeral 36 is a threaded portion provided on the inner surface of the coupling 37, and reference numeral 37 A is for rotation of the coupling 37 and attachment of the first connector 30. The reference numeral 37B is a resin material such as silicone and plays a role of packing or the like. The characteristic measuring device 50 and the first connector 30 are connected by a first cable 39.

  The second connector 40 formed of a jack-type coaxial connector also includes a center conductor 41, a dielectric layer 44 that covers the center conductor 41, and an outer conductor 45 that covers the dielectric layer 44. The constituent materials of the center conductor 41, the dielectric layer 44, and the outer conductor 45 may be the same as those constituent materials in the test connector 10. One end 43 of the center conductor 41 is provided with a hole into which the other end 12 of the center conductor 11 having a male shape can be inserted. A screwing portion 46 is provided on the outer surface of the outer conductor 45. Furthermore, a space (concave portion) 48 for storing a part of the test connector 10 is provided at the tip of the second connector 40. The characteristic measuring device 50 and the second connector 40 are connected by a second cable 49.

  In the first embodiment, the tip end portion of the second connector 40 is inserted into the connection portion 22 of the jig 20 in the assembly described above, and the screwing portion 23 of the jig 20 and the second connector 40 are screwed together. The part 46 is screwed together. And the insertion pin 27 made from brass is inserted in the hole 24 of the jig | tool 20, and the insertion pin 27 is rotated centering | focusing on the axis line of an assembly, 78.5N-98.1N (8kgf-10kgf) The test connector 10 and the second connector 40 can be easily tightened with a torque of 1 mm. Next, by inserting the test connector 10 into the first connector 30 and rotating the coupling 37 of the first connector 30, the screwed portion 16 of the test connector 10 and the screwed portion of the first connector 30. 36 is screwed together.

  Thus, one end 13 of the center conductor 11 of the test connector 10 is connected to the first connector 30, and the dielectric layer located on the other end side of the center conductor 11 that is not covered by the outer conductor 15 of the test connector 10. The portion 14A is inserted into the through hole 21 of the jig 20, the outer conductor 15 of the connector 10 to be tested is brought into contact with the jig 20, and the connection portion 22 of the jig 20 and the second connector 40 are connected. By connecting, the state where the other end 12 of the center conductor 11 of the test connector 10 is connected to the second connector 40 can be obtained.

  More specifically, the outer conductor 35 constituting the first connector 30 is stored in the space (recessed portion) 18 provided in the test connector 10 and the center constituting the first connector 30. With the protruding portion 32 of the conductor 31 and one end 13 of the center conductor 11 constituting the test connector 10 connected (fitted), the outer conductor 35 constituting the first connector 30 and the test connector 10 are connected to each other. The first connector 30 and the test connector 10 are connected in a state where the outer conductor 15 constituting the contact is made. On the other hand, one end of the central conductor 41 constituting the second connector 40 in a state in which the connection portion 22 provided in the jig 20 is stored in the space (recessed portion) 48 provided in the second connector 40. 43 and the other end 12 of the center conductor 11 constituting the test connector 10 are connected (fitted), and the outer conductor 45 constituting the second connector 40 and the outer conductor constituting the test connector 10. 15 is electrically connected via the jig 20, the second connector 40 and the test connector 10 are connected.

  Thereafter, the jig 20 is grounded, and the characteristics of the test connector 10 are measured by the characteristics measuring device 50. Specifically, the characteristic measuring device 50 can collect high-frequency data such as the reflection coefficient and passage loss of the test connector 10. Note that the characteristic measuring device 50 is calibrated in advance by connecting the first connector 30 and the second connector 40 directly.

  In the first embodiment, by using the jig 20, the calibration of the characteristic measuring device 50 is performed, and the characteristics of the connection parts other than the test connector 10 are not directly measured, but the test connector 10 alone is directly measured. It is possible to accurately measure high-frequency characteristics such as reflection coefficient and passage loss.

  The second embodiment is a modification of the first embodiment. The test connector 70 in the second embodiment is different in structure from the test connector 10 in the first embodiment. A schematic cross-sectional view of the test connector 70 in Example 2 is shown in FIG. 6A, and a schematic cross-sectional view showing a state in which the test connector 70 and the jig 20 in Example 2 are assembled is shown. 6 (B).

  The jig 20 in the second embodiment can be the same as the plug type (male) jig 20 described in the first embodiment. Moreover, what is necessary is just to use the 2nd connector 40 in Example 1 as a 1st connector in Example 2, and a 2nd connector. Therefore, detailed description thereof will be omitted. In the following description, the first connector will be referred to as the first connector 40.

  The test connector 70 in Example 2 is an SMA type coaxial connector, and is a plug type coaxial connector. The test connector 70 includes a central conductor 71 made of a conductive material such as brass or stainless steel (for example, a wire or a plate) plated with gold or the like, and mainly made of a fluorine-based resin that covers the central conductor 71. The dielectric layer 74 and the outer conductor 75 formed by applying various surface treatments to a conductive material such as brass or stainless steel covering the dielectric layer portion 74B located on one end side of the central conductor 71. . The center conductor 71 and the outer conductor 75 are insulated by a dielectric layer 74. The central conductor 71 protrudes from one end of the dielectric layer 74, and the protruding portion (one end 73 of the central conductor 71) has a male shape. Further, the central conductor 71 protrudes from the other end of the dielectric layer 74, and this protruding portion (the other end 72 of the central conductor 71) also has a male shape. A coupling 77 is disposed on the outer surface of the outer conductor 75. Reference numeral 76 is a threaded portion provided on the inner surface of the coupling 77, reference numeral 77A is a ring for rotating the coupling 77 and attaching the test connector 70, and reference numeral 77B is silicone or the like. It is a resin material and plays a role such as packing.

  The jig 20 of the second embodiment also has a first connector 40 (the structure is the same as the second connector 40 of the first embodiment) and a characteristic measuring device 50 (specifically, a second connector 40). , A network analyzer for high frequency measurement), measurement of characteristics of the test connector 70, one end 73 of the center conductor 71 of the test connector 70 is connected to the first connector 40, and the center conductor 71 of the test connector 70 is connected. This jig is made of a conductive material and is used when the other end 72 is connected to the second connector 40. The jig 20 in the second embodiment has the same structure and configuration as the jig 20 described in the first embodiment.

  Even in Example 2, the dielectric layer portion 74A located on the other end side of the central conductor not covered by the outer conductor 75 of the test connector 70 is inserted into the through hole 21 of the jig 20, and the outer conductor is inserted. A screw is screwed into a screw hole 25 provided in the jig 20 through a hole (not shown) provided in a flange portion 75 </ b> A extending from the end of 75. By obtaining such an assembly, a coaxial connector opening structure can be obtained. The diameter of the through hole 21 is large enough to insert the dielectric layer portion 74A of the test connector 70, that is, large enough to achieve coaxial impedance matching with the test connector 70. Moreover, the outer shape of the jig 20 is large enough to screw the test connector 70, and the thickness of the jig 20 is such that the coaxial connector opening structure can be formed, or more. It is.

  In the second embodiment, the tip end portion of the second connector 40 is inserted into the connection portion 22 of the jig 20 in the assembly of the test connector 70 and the jig 20, and the screwing portion 23 of the jig 20 The screwing portion 46 of the second connector 40 is screwed. And the insertion pin 27 made from brass is inserted in the hole 24 of the jig | tool 20, and the insertion pin 27 is rotated centering | focusing on the axis line of an assembly, 78.5N-98.1N (8kgf-10kgf) The test connector 70 and the second connector 40 can be easily tightened with a torque of 1 mm. Next, by rotating the coupling 77, the screwing portion 76 of the connector 70 under test and the screwing portion of the first connector 40 (more specifically, the second connector shown in FIG. 3C). The screwing part 46) in 40 is screwed.

  Thus, one end 73 of the center conductor 71 of the test connector 70 is connected to the first connector 40, and the dielectric layer located on the other end side of the center conductor 71 not covered by the outer conductor 75 of the test connector 70. The portion 74A is inserted into the through hole 21 of the jig 20, the outer conductor 75 of the connector 70 to be tested is brought into contact with the jig 20, and the connection portion 22 of the jig 20 and the second connector 40 are connected. By connecting, the state where the other end 72 of the center conductor 71 of the test connector 70 is connected to the second connector 40 can be obtained.

  More specifically, the first connector 40 is configured in a state where the connection portion 78 provided in the test connector 70 is stored in the space (recessed portion) 48 provided in the first connector 40. With the end 43 of the center conductor 41 and the end 73 of the center conductor 71 constituting the test connector 70 connected (fitted), the outer conductor 45 and the test connector 70 constituting the first connector 40 are connected. The first connector 40 and the test connector 70 are connected in a state where the outer conductor 75 constituting the contact is made. On the other hand, one end of the central conductor 41 constituting the second connector 40 in a state in which the connection portion 22 provided in the jig 20 is stored in the space (recessed portion) 48 provided in the second connector 40. 43 and the other end 72 of the center conductor 71 constituting the test connector 70 are connected (fitted), and the outer conductor 45 constituting the second connector 40 and the outer conductor constituting the test connector 70. The second connector 40 and the test connector 70 are connected in a state in which 75 is electrically connected via the jig 20.

  Thereafter, the jig 20 is grounded, and the characteristics of the test connector 70 are measured by the characteristics measuring device 50. Specifically, the characteristic measuring device 50 can collect high-frequency data such as the reflection coefficient and the passage loss of the test connector 70. The characteristic measuring device 50 is calibrated in advance by connecting the first connector 40 and the terminator, and the characteristic measuring device 50 is calibrated by connecting the second connector 40 and the terminator. Alternatively, calibration is performed between the first connector 40 and the second connector 40 by using a coaxial connector for relaying or the like.

  Also in the second embodiment, by using the jig 20, it is possible to directly measure the test connector 70 alone without measuring the characteristics of the connection parts other than the test connector 70 from the state where the characteristic measuring apparatus 50 is calibrated. It is possible to accurately measure high-frequency characteristics such as reflection coefficient and passage loss.

  Example 3 also relates to a jig used for connector characteristic measurement (characteristic evaluation) and a connector characteristic measurement method (characteristic evaluation method) of the present invention, and more specifically, the jig has a second configuration. . A schematic cross-sectional view before assembly of the jig 120 and the test connector 10A in Example 3 is shown in FIG. 7A, and a schematic cross-sectional view after assembly is shown in FIG. 7B.

  The test connector 10A in Example 3 is an SMA type coaxial connector, and is a jack type (female type or receptacle type) coaxial connector. The test connector 10A is the test connector 10 in Example 1 except that the structure of the other end 12A of the center conductor 11 is different from the structure of the other end 12 of the center conductor 11 of the test connector 10 in Example 1. Since it has the same structure and configuration as those in FIG. In the third embodiment, the first connector 30 in the first embodiment may be used as the first connector and the second connector. Therefore, detailed description thereof will be omitted. In the following description, the second connector is referred to as the second connector 30 and described.

  In the test connector 10A of Example 3, the other end 12A of the center conductor 11 is provided with a hole so that the protruding portion 32 of the center conductor 31 of the second connector 30 can be inserted. . That is, the other end 12A of the center conductor 11 of the test connector 10A has a female shape. The one end 13 of the center conductor 11 of the test connector 10A also has a female shape.

  The jig 120 of the third embodiment also uses the characteristic measuring device 50 (specifically, a network analyzer for high frequency measurement) provided with the first connector 30 and the second connector 30, and the characteristics of the connector 10A under test. When the measurement is performed with one end 13 of the center conductor 11 of the test connector 10A connected to the first connector 30 and the other end 12A of the center conductor 11 of the test connector 10A connected to the second connector 30. This is a jig made of a conductive material. More specifically, the jig 120 of the third embodiment is also made of stainless steel whose surface is plated with gold of about 0.1 μm to several μm.

And the jig 120 in Example 3 is also
(A) a through hole 121 into which a portion 14A of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor 15 is inserted; and
(B) a connection part 122 to which the second connector 30 is connected;
It has.

  More specifically, in the jig 120 according to the third embodiment, the cross-sectional shape of the through hole 121 in the direction perpendicular to the axis of the jig 120 is circular, and the connection portion 122 in the direction perpendicular to the axis of the jig 120 is used. The cross-sectional shape is a circular shape concentric with the through-hole 121, and a screwing portion 123 that is screwed into the second connector 30 is provided on the outer surface of the connecting portion 122. That is, the jig 120 in Example 3 is a jack type (female type). Further, a screw hole (the same as the screw hole 25 in the jig 20 of Example 1) is provided on the surface of the jig 120 that contacts the test connector 10A. The length L of the through hole 121 along the axis of the jig 120 (see FIG. 7A) is that of the portion 14A of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor 15. It is roughly equal to the length.

  Then, a portion 14A of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor 15 of the test connector 10A is inserted into the through hole 121 of the jig 120 and extends from the end of the outer conductor 15. A screw (not shown) is screwed into a screw hole (not shown) provided in the jig 120 through a hole (not shown) provided in the flange portion 15A. By obtaining such an assembly of the test connector 10A and the jig 120, a coaxial connector opening structure can be obtained. Note that the diameter of the through hole 121 is large enough to insert the dielectric layer portion 14A of the connector under test 10A, that is, large enough to achieve coaxial impedance matching with the connector under test 10A. Also, the outer shape of the jig 120 is large enough to screw the test connector 10A, and the thickness t of the jig 120 (see FIG. 7A) can form a coaxial connector opening structure. Thickness that can be made, or more.

  In the third embodiment, the threaded portion 123 of the jig 120 is inserted by inserting the distal end portion of the second connector 30 into the connection portion 122 of the jig 120 in the assembly and rotating the coupling 37. And the screwing portion 36 of the second connector 30 are screwed together. Next, by rotating the coupling 37 in the first connector 30, the screwing portion 16 of the test connector 10 </ b> A and the screwing portion 36 of the first connector 30 are screwed together.

  In this way, one end 13 of the center conductor 11 of the test connector 10A is connected to the first connector 30, and the dielectric layer located on the other end side of the center conductor 11 that is not covered by the outer conductor 15 of the test connector 10A. The portion 14A is inserted into the through hole 121 of the jig 120, the outer conductor 15 of the connector under test 10A and the jig 120 are brought into contact, and the connection portion 122 of the jig 120 and the second connector 30 are connected. By connecting, the state where the other end 12A of the center conductor 11 of the test connector 10A is connected to the second connector 30 can be obtained.

  More specifically, the outer conductor 35 constituting the first connector 30 is stored in the space (recessed portion) 18 provided in the test connector 10 </ b> A and the center constituting the first connector 30. With the protruding portion 32 of the conductor 31 and one end 13 of the central conductor 11 constituting the test connector 10A connected (fitted), the outer conductor 35 constituting the first connector 30 and the test connector 10A are connected to each other. The first connector 30 and the test connector 10 </ b> A are connected in a state where the outer conductor 15 constituting the contact is made. On the other hand, in a state where the outer conductor 35 constituting the second connector 30 is housed in the connecting portion 122 provided in the jig 120, the protruding portion 32 of the central conductor 31 constituting the second connector 30 and A state in which the other end 12A of the central conductor 11 constituting the test connector 10A is connected (fitted), and the outer conductor 35 constituting the second connector 30 and the outer conductor 15 constituting the test connector 10A Are electrically connected via the jig 120, and the second connector 30 and the test connector 10A are connected.

  Thereafter, the jig 120 is grounded, and the characteristic measurement of the connector under test 10 </ b> A is performed by the characteristic measuring device 50. Specifically, the characteristic measurement device 50 can collect high-frequency data such as the reflection coefficient and the passage loss of the test connector 10A. The characteristic measuring device 50 is calibrated in advance by connecting the first connector 30 and the terminator, and the characteristic measuring device 50 is calibrated by connecting the second connector 30 and the terminator. Alternatively, calibration is performed between the first connector 30 and the second connector 30 by using a coaxial connector for relaying or the like.

  Also in the third embodiment, by using the jig 120, from the state in which the characteristic measuring apparatus 50 is calibrated, the characteristics of the connection parts other than the test connector 10A are not directly measured, and the test connector 10A alone is directly measured. It is possible to accurately measure high-frequency characteristics such as reflection coefficient and passage loss.

  FIG. 8 shows an example in which the test connector 70A is used as a modification of the test connector 10A of the third embodiment shown in FIG. A schematic cross-sectional view before assembly of the jig 120 and the test connector 70A is shown in FIG. 8A, and a schematic cross-sectional view after assembly is shown in FIG. 8B.

  This test connector 70A is an SMA type coaxial connector, but is different from the test connector 10A shown in FIG. 7 in that it is a plug type coaxial connector and that the structure of one end 73 of the center conductor 71 is male. doing. The test connector 70A is different from the test connector 70 described in the second embodiment in that the structure of the other end 72A of the center conductor 71 is a female shape. This has the same structure and configuration as the test connector 70 described in FIG. Therefore, detailed description of the test connector 70A is omitted. The female shape of the other end 72A of the center conductor 71 is the same as the shape of the one end 13 of the center conductor 11 of the connector 10 under test in Example 1. In this test connector 70A, the second connector 40 shown in FIG. 3C is used as the first connector, and the first connector 30 shown in FIG. It may be used as a connector.

  Example 4 also relates to a jig used for connector characteristic measurement (characteristic evaluation) of the present invention and a connector characteristic measurement method (characteristic evaluation method), and more specifically, the jig has a third configuration. . FIG. 9 shows a schematic sectional view before assembly of the jig 220 and the test connector 210 in Example 4, FIG. 10 shows a schematic front view before assembly, and FIG. 10 shows a schematic sectional view after assembly. As shown in FIG. A schematic partial sectional view of the first connector 230 is shown in FIG. 12A, and a schematic front view is shown in FIG. Furthermore, a schematic partial cross-sectional view of the second connector 240 is shown in FIG. 13A, and a schematic front view is shown in FIG.

  The test connector 210 in Example 4 is an SMB type coaxial connector, and is a plug type coaxial connector. And the connection part with the 1st connector 230 differs in the test connector 210. FIG. That is, the test connector 210 in Example 4 is a so-called push-on type in which the connection portion with the first connector 230 can be attached and detached with one touch. Specifically, a split groove portion 217 is provided in the outer conductor 15. Except for this point, the test connector 210 according to the fourth embodiment has substantially the same structure and configuration as the test connector 10 according to the first embodiment, and a detailed description thereof will be omitted.

  The jig 220 of the fourth embodiment also uses the characteristic measuring device 50 (specifically, a network analyzer for high frequency measurement) provided with the first connector 230 and the second connector 240, and the characteristics of the connector 210 under test. When the measurement is performed with one end 13 of the center conductor 11 of the test connector 210 connected to the first connector 230 and the other end 12 of the center conductor 11 of the test connector 210 connected to the second connector 240. This is a jig made of a conductive material. This jig 220 is also a so-called push-on type in which the connecting portion with the second connector 240 can be attached and detached with one touch.

Specifically, the jig 220 in Example 4 is also
(A) a through hole 221 into which a portion 14A of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor 15 of the test connector 210 is inserted; and
(B) a connection part 222 to which the second connector 240 is connected;
It has.

  More specifically, the jig 220 of the fourth embodiment is also made of stainless steel having a surface plated with gold of about 0.1 μm to several μm. A dielectric layer 224 is fitted on the inner surface of the connection portion 222. In the jig 220, the cross-sectional shape of the through hole 221 in the direction perpendicular to the axis of the jig 220 is circular, and the cross-sectional shape of the connection portion 222 in the direction perpendicular to the axis of the jig 220 is concentric with the through hole 221. The connection portion 222 is circular, and a recess 223 that engages with the second connector 240 is provided on the outer surface of the connection portion 222. That is, the jig 220 in the fourth embodiment is a jack type (female type). Furthermore, a screw hole (same as the screw hole 25 in the jig 20 of Example 1) is provided on the surface of the jig 220 that contacts the test connector 210. The length L (see FIG. 9) of the through hole 221 along the axis of the jig 220 is substantially equal to the length of the dielectric layer portion 14A located on the other end side of the central conductor not covered by the outer conductor 15. .

  Then, the portion 14A of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor 15 of the test connector 210 is inserted into the through hole 221 of the jig 220 and extends from the end of the outer conductor 15. A screw (not shown) is screwed into a screw hole (not shown) provided in the jig 220 through a hole (not shown) provided in the flange portion 15A. By obtaining such an assembly of the test connector 210 and the jig 220, a coaxial connector opening structure can be obtained. The diameter of the through hole 221 is large enough to insert the dielectric layer portion 14 </ b> A of the test connector 210, that is, large enough to achieve coaxial impedance matching with the test connector 210. Further, the outer shape of the jig 220 is large enough to screw the test connector 210, and the thickness t (see FIG. 9) of the jig 220 is a thickness that can form the coaxial connector opening structure. Or the thickness is more.

  In the fourth embodiment, when the distal end portion of the second connector 240 shown in FIG. 13 is inserted into the connection portion 222 of the jig 220 in the assembly, the inside of the space 248 at the distal end portion of the second connector 240 is obtained. The test connector 210 and the second connector 240 are connected by engaging the convex portion (projection portion) 246 provided in the split groove portion 247 with the concave portion 223 provided in the jig 220. Note that the second connector 240 according to the fourth embodiment is provided with the split groove portion 247 in the outer conductor 45 instead of the screwing portion 46, and the convex portion (projection portion) 246 is provided in the split groove portion 247. Except for the above, since it has the same structure and configuration as the second connector 40 in the first embodiment, detailed description thereof is omitted. Reference numeral 249 is a kind of ring for reinforcing the split groove portion 247.

  On the other hand, when the first connector 230 shown in FIG. 12 is inserted into the space 218 of the test connector 210, a convex portion (projection) 216 provided in the split groove portion 217 is provided in the outer conductor 35 of the first connector 230. The test connector 210 and the first connector 230 are connected by engaging with the recessed portion 236 formed. Reference numeral 219 is a kind of ring for reinforcing the split groove portion 217. The first connector 230 according to the fourth embodiment is the same as the first connector according to the first embodiment except that the concave portion 236 is provided in the outer conductor 35 instead of the threaded portion 36 and the coupling 37. 30 has the same structure and configuration as those in FIG.

  In this way, one end 13 of the center conductor 11 of the test connector 210 is connected to the first connector 230, and the dielectric layer located on the other end side of the center conductor 11 that is not covered by the outer conductor 15 of the test connector 210. The portion 14A is inserted into the through-hole 221 of the jig 220, the outer conductor 15 of the connector 210 under test and the jig 220 are brought into contact, and the connection portion 222 of the jig 220 and the second connector 240 are connected. By connecting, it is possible to obtain a state in which the other end 12 of the central conductor 11 of the test connector 210 is connected to the second connector 240.

  More specifically, the outer conductor 35 constituting the first connector 230 is housed in the space (recessed portion) 218 provided in the test connector 210 and the center constituting the first connector 230. With the protruding portion 32 of the conductor 31 and one end 13 of the central conductor 11 constituting the test connector 210 connected (fitted), the outer conductor 35 constituting the first connector 230 and the test connector 210 are connected to each other. The first connector 230 and the test connector 210 are connected in a state where the outer conductor 15 constituting the contact is made. On the other hand, the outer conductor 45 constituting the second connector 240 is housed in the connecting portion 222 provided in the jig 220 and provided with one end 43 of the center conductor 41 constituting the second connector 240. The outer conductor 45 constituting the second connector 240 and the outer conductor 15 constituting the test connector 210 are in a state where the other end 12 of the central conductor 11 constituting the test connector 210 is connected (fitted). The second connector 240 and the test connector 210 are connected in a state where they are electrically connected via the jig 220.

  Thereafter, the jig 220 is grounded, and the characteristics of the test connector 210 are measured by the characteristic measuring device 50. Specifically, the characteristic measurement device 50 can collect high-frequency data such as the reflection coefficient and the passage loss of the test connector 210. Note that the characteristic measuring apparatus 50 is calibrated in advance by connecting the first connector 230 and the second connector 240 directly.

  Also in the fourth embodiment, by using the jig 220, from the state where the characteristic measuring apparatus 50 is calibrated, the characteristics of the connecting components other than the test connector 210 are not directly measured, and the test connector 210 alone is directly measured. It is possible to accurately measure high-frequency characteristics such as reflection coefficient and passage loss.

  Example 5 also relates to a jig used for connector characteristic measurement (characteristic evaluation) of the present invention and a connector characteristic measurement method (characteristic evaluation method), and more specifically, the jig has a fourth configuration. . FIG. 14 shows a schematic cross-sectional view before assembling the jig 320 and the test connector 210 in Example 5, FIG. 15A shows a schematic cross-sectional view after the assembly, and the second connector 340. A schematic cross-sectional view is shown in FIG.

  Since the test connector 210 and the first connector 230 in the fifth embodiment are the same as the test connector 210 and the first connector 230 described in the fourth embodiment, detailed description thereof is omitted. Moreover, as the 2nd connector 340 in Example 5, the protrusion part 32 of the center conductor 31 which comprises the 1st connector 230 demonstrated in Example 4 is made into the end which has a female shape (2nd in Example 4). A connector replaced with the same shape as one end 43 of the central conductor 41 constituting the connector 240 may be used.

  The jig 320 of the fifth embodiment also uses the characteristic measuring device 50 (specifically, a network analyzer for high frequency measurement) provided with the first connector 230 and the second connector 340, and the characteristics of the connector 210 under test. When the measurement is performed in a state where one end 13 of the center conductor 11 of the test connector 210 is connected to the first connector 230 and the other end 12 of the center conductor 11 of the test connector 210 is connected to the second connector 340. This is a jig made of a conductive material. The jig 320 of the fifth embodiment is also a so-called push-on type in which the connecting portion with the second connector 340 can be attached and detached with one touch.

Specifically, the jig 320 in Example 5 is also
(A) a through hole 321 into which a portion 14A of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor 15 of the test connector 210 is inserted; and
(B) a connection portion 322 to which the second connector 340 is connected;
It has.

  More specifically, the jig 320 of Example 5 is also made of stainless steel having a surface plated with gold of about 0.1 μm to several μm. In the jig 320, the cross-sectional shape of the through hole 321 in the direction perpendicular to the axis of the jig 320 is circular, and the cross-sectional shape of the connection portion 322 in the direction perpendicular to the axis of the jig 320 is concentric with the through hole 321. The connection portion 322 has a circular shape, and a projection (projection) 326 that engages with the second connector 340 is provided on the inner surface of the connection portion 322. That is, the jig 220 in the fifth embodiment is a plug type (male type). Further, a screw hole (the same as the screw hole 25 in the jig 20 of Example 1) is provided on the surface of the jig 320 that contacts the test connector 210. The length L (see FIG. 14) of the through hole 321 along the axis of the jig 320 is substantially equal to the length of the dielectric layer portion 14A located on the other end side of the central conductor not covered by the outer conductor 15. . Note that the jig 320 in the fifth embodiment is provided with the split groove portion 327 in the connection portion 322 and the convex portion (projection portion) 326 in the split groove portion 327 instead of having the concave portion 223 and the dielectric layer 224. Except for this point, the jig 220 has the same structure and configuration as the jig 220 in the fourth embodiment, and a detailed description thereof will be omitted. In the figure, reference numeral 329 is a kind of ring for reinforcing the split groove portion 327.

  Then, the portion 14A of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor 15 of the test connector 210 is inserted into the through hole 321 of the jig 320 and extends from the end of the outer conductor 15. A screw (not shown) is screwed into a screw hole (not shown) provided in the jig 320 through a hole (not shown) provided in the flange portion 15A. By obtaining such an assembly of the test connector 210 and the jig 320, a coaxial connector opening structure can be obtained. The diameter of the through-hole 321 is such a size that the dielectric layer portion 14A of the test connector 210 can be inserted, that is, a size that can achieve coaxial impedance matching with the test connector 210. Further, the outer shape of the jig 320 is a size capable of screwing the test connector 210, and the thickness t (see FIG. 14) of the jig 320 is a thickness capable of forming the coaxial connector opening structure. Or the thickness is more.

  In the fifth embodiment, when the distal end portion of the second connector 340 is inserted into the connection portion 322 of the jig 320 in the assembly described above, a convex portion (projection portion) provided in the split groove portion 327 of the jig 320. The jig 320 and the second connector 340 are connected by engaging the recess 346 provided in the outer conductor 45 of the second connector 340 with the 326. Further, the test connector 210 and the first connector 230 are connected in the same manner as in the fourth embodiment.

  In this way, one end 13 of the center conductor 11 of the test connector 210 is connected to the first connector 230, and the dielectric layer located on the other end side of the center conductor 11 that is not covered by the outer conductor 15 of the test connector 210. The portion 14A is inserted into the through-hole 321 of the jig 320, the outer conductor 15 of the connector 210 under test is brought into contact with the jig 320, and the connection portion 322 of the jig 320 and the second connector 340 are connected. By connecting, the state where the other end 12 of the center conductor 11 of the test connector 210 is connected to the second connector 340 can be obtained.

  More specifically, the outer conductor 35 constituting the first connector 230 is housed in the space (recessed portion) 218 provided in the test connector 210 and the center constituting the first connector 230. With the protruding portion 32 of the conductor 31 and one end 13 of the central conductor 11 constituting the test connector 210 connected (fitted), the outer conductor 35 constituting the first connector 230 and the test connector 210 are connected to each other. The first connector 230 and the test connector 210 are connected in a state where the outer conductor 15 constituting the contact is made. On the other hand, the outer conductor 45 constituting the second connector 340 is housed in the connection portion 222 provided in the jig 320 and is provided with one end 43 of the center conductor 41 constituting the second connector 340. The outer conductor 45 constituting the second connector 340 and the outer conductor 15 constituting the test connector 210 are in a state where the other end 12 of the central conductor 11 constituting the test connector 210 is connected (fitted). The second connector 340 and the test connector 210 are connected in a state where they are electrically connected via the jig 320.

  Thereafter, the jig 320 is grounded, and the characteristics of the test connector 210 are measured by the characteristics measuring device 50. Specifically, the characteristic measurement device 50 can collect high-frequency data such as the reflection coefficient and the passage loss of the test connector 210. Note that the characteristic measuring apparatus 50 is calibrated in advance by connecting the first connector 230 and the terminator, and the characteristic measuring apparatus 50 is calibrated by connecting the second connector 340 and the terminator in advance.

  Also in the fifth embodiment, by using the jig 320, from the state in which the characteristic measuring apparatus 50 is calibrated, the characteristics of the connection parts other than the test connector 210 are not directly measured, and the test connector 210 alone is directly measured. It is possible to accurately measure high-frequency characteristics such as reflection coefficient and passage loss.

  As mentioned above, although this invention was demonstrated based on the preferable Example, this invention is not limited to these Examples. The structures and configurations of the jig, the test connector, the first connector, and the second connector described in the examples are examples, and can be changed as appropriate, and materials, materials, surface treatments, and the like that configure these components Is also an example, and can be changed as appropriate.

  Implementation of test connector type [plug type or jack type], configuration of one end and the other end of the central conductor constituting the test connector [whether it has a male shape or a female shape] It is not limited to the example shown in the example. Type of test connector, configuration of one end and the other end of the central conductor constituting the test connector, type of first and second connectors to be connected to the test connector, and configuration of the first and second connectors Tables 1 and 2 below show combinations of the configurations of one end and the other end of the central conductor. Here, the modified example of Example 1, Example 2, Example 3, Example 3, Example 4, and Example 5 are “Case-3” and “Case-15” in Tables 1 and 2, respectively. ”,“ Case-2 ”,“ Case-14 ”,“ Case-12 ”, and“ Case-11 ”.

  Screw attachment is generally used for attaching the test connector to the jig, but other attachment methods such as soldering may be employed. In addition, tightening of the connector under test and the second connector in Examples 1 to 3 may be performed alternatively using a torque wrench and a spanner, and in consideration of easiness to hold and slip prevention. A knurl may be provided on the outer peripheral portion of the jig, and the shape of the outer peripheral portion of the jig may be a hexagonal shape or an H-cut shape (a shape obtained by cutting out two symmetrically located circles).

FIG. 1 is a schematic cross-sectional view of a first connector and a second connector provided in a jig, a test connector, and a characteristic measuring apparatus in Example 1. FIG. 2A is an enlarged schematic cross-sectional view of the test connector in Example 1, and FIG. 2B is a schematic cross-section just before attaching the test connector to the jig. FIG. 2C is a schematic cross-sectional view of a state in which the test connector is attached to a jig. FIG. 3A is a schematic diagram showing a state immediately before connecting the first connector and the second connector with the sample connector attached to the jig in Example 1. FIG. (B) and (C) are schematic views in which a part of the first connector and the second connector are cut away. 4A is a schematic front view of the jig in the first embodiment, and FIG. 4B is a schematic side view and a cross-sectional view of the jig in the first embodiment. FIG. 5 is a schematic diagram of a characteristic measuring apparatus including a first connector and a second connector. 6A is a schematic cross-sectional view of the test connector in Example 2, and FIG. 6B is a schematic diagram showing a state in which the test connector and jig in Example 2 are assembled. FIG. 7A is a schematic cross-sectional view of the test connector in Example 3, and FIG. 7B is a schematic diagram showing a state in which the test connector and jig in Example 3 are assembled. FIG. 8A is a schematic cross-sectional view of the test connector in the modification of Example 3, and FIG. 8B is an assembly of the test connector and the jig in the modification of Example 3. It is typical sectional drawing which shows the state. FIG. 9 is a schematic cross-sectional view before assembly of the test connector and jig in Example 4. FIG. 10 is a schematic front view of the test connector and jig in Example 4 before assembly. FIG. 11 is a schematic cross-sectional view illustrating a state where the test connector and the jig in Example 4 are assembled. 12A is a schematic cross-sectional view of the first connector in the fourth embodiment, and FIG. 12B is a schematic front view of the first connector in the fourth embodiment. FIG. 13A is a schematic cross-sectional view of the second connector in the fourth embodiment, and FIG. 13B is a schematic front view of the first connector in the fourth embodiment. FIG. 14 is a schematic cross-sectional view before assembling the jig and the test connector in Example 5. 15A is a schematic cross-sectional view after assembly of the jig and the test connector in Example 5, and FIG. 15B is a schematic diagram of the second connector in Example 5. FIG. It is sectional drawing. 16A is a plan view schematically showing a state in which two test connectors in the prior art are connected to both ends of the stripline, and FIG. 16B is a plan view of FIG. It is a schematic diagram which shows a state when the test connector is cut | disconnected in this schematic top view. FIGS. 17A and 17B are a schematic front view showing a state in which the two test connectors shown in FIG. 16A are connected to both ends of the strip line and a strip line holding base, respectively. It is typical sectional drawing. FIG. 18 is a schematic diagram illustrating a state of the first connector and the terminator immediately before the calibration of the characteristic measuring apparatus. FIG. 19A is a schematic plan view showing a state in which one test connector in the prior art is connected via a jig, and FIG. 19B is a schematic cross-sectional view. .

Explanation of symbols

10, 70, 70A, 210 ... test connector, 11, 71 ... center conductor, 12, 72, 72A ... the other end of the center conductor of the test connector, 13, 73 ... test connector One end of the central conductor, 14, 74 ... dielectric layer, 14A, 14B, 74A, 74B ... dielectric layer portion, 15, 75 ... outer conductor, 15A, 75A ... flange portion, 16, 76 ... screwing part, 18, 78, 218 ... space, 19, 79 ... screw, 20, 120, 220 ... jig, 21, 121, 221 ... through hole, 22, 122, 222... Connection part, 23, 123... Threaded part, 223... Concave part, 224... Dielectric layer, 24. ... Inserting pins, 30, 230 ... First connector, 31 ... Center conductor, 32 ... Projection, 34 ... dielectric layer, 35 ... outer conductor, 36 ... screwing part, 37 ... coupling, 37A, ... ring, 37B ... resin material, 39 ... First cable 40, 240 ... second connector 41 ... center conductor 43 ... one end of center conductor 44 ... dielectric layer 45 ... outer conductor 46 ..Screw portion, 48, 248... Space (concave), 49... Second cable, 50... Characteristic measuring device, 77... Coupling, 77 A,. ..Resin material, 236... Concave, 216, 246... Convex (projection), 217, 247 ... split groove, 219, 249 ... ring

Claims (10)

Using a characteristic measuring device comprising a first connector and a second connector;
(A) center conductor,
(B) a dielectric layer covering the central conductor, and
(C) an outer conductor covering a portion of the dielectric layer located on one end side of the central conductor;
Used when measuring the characteristics of the connector under test with one end of the center conductor of the connector under test connected to the first connector and the other end of the center conductor of the connector under test connected to the second connector A jig made of a conductive material,
(A) a through hole into which a portion of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor is inserted, and
(B) a connecting portion to which the second connector is connected;
A jig used for measuring the characteristics of a connector. The cross-sectional shape of the through hole in the direction perpendicular to the axis of the jig is circular,
The cross-sectional shape of the connecting portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole,
2. The jig used for measuring connector characteristics according to claim 1, wherein an inner surface of the connecting portion is provided with a screwing portion to be screwed with the second connector. The cross-sectional shape of the through hole in the direction perpendicular to the axis of the jig is circular,
The cross-sectional shape of the connecting portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole,
The jig used for the connector characteristic measurement according to claim 1, wherein a screwing portion to be screwed with the second connector is provided on an outer surface of the connection portion. The cross-sectional shape of the through hole in the direction perpendicular to the axis of the jig is circular,
The cross-sectional shape of the connecting portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole,
The jig used for connector characteristic measurement according to claim 1, wherein a concave portion that engages with the second connector is provided on an outer surface of the connection portion. The cross-sectional shape of the through hole in the direction perpendicular to the axis of the jig is circular,
The cross-sectional shape of the connecting portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole,
The jig used for measuring the characteristics of the connector according to claim 1, wherein a convex portion that engages with the second connector is provided on an inner surface of the connection portion. Using a characteristic measuring device comprising a first connector and a second connector;
(A) center conductor,
(B) a dielectric layer covering the central conductor, and
(C) an outer conductor covering a portion of the dielectric layer located on one end side of the central conductor;
Measure the characteristics of the connector under test
(A) a through hole into which a portion of the dielectric layer located on the other end side of the central conductor not covered by the outer conductor is inserted, and
(B) a connecting portion to which the second connector is connected;
A connector characteristic measurement method using a jig made of a conductive material, comprising:
Connect one end of the center conductor of the test connector to the first connector, and insert the part of the dielectric layer located on the other end of the center conductor that is not covered by the outer conductor of the test connector into the through hole of the jig The outer conductor of the test connector and the jig are brought into contact with each other, and the other end of the central conductor of the test connector is connected to the second connector by connecting the connecting portion of the jig and the second connector. A connector characteristic measurement method comprising: measuring a characteristic of a test connector by grounding a jig while connected to the connector. The cross-sectional shape of the through hole in the direction perpendicular to the axis of the jig is circular,
The cross-sectional shape of the connecting portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole,
The connector characteristic measuring method according to claim 6, wherein a screwing portion to be screwed with the second connector is provided on an inner surface of the connection portion. The cross-sectional shape of the through hole in the direction perpendicular to the axis of the jig is circular,
The cross-sectional shape of the connecting portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole,
The connector characteristic measuring method according to claim 6, wherein a screwing portion to be screwed with the second connector is provided on an outer surface of the connection portion. The cross-sectional shape of the through hole in the direction perpendicular to the axis of the jig is circular,
The cross-sectional shape of the connecting portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole,
The connector characteristic measuring method according to claim 6, wherein a concave portion that engages with the second connector is provided on an outer surface of the connecting portion. The cross-sectional shape of the through hole in the direction perpendicular to the axis of the jig is circular,
The cross-sectional shape of the connecting portion in the direction perpendicular to the axis of the jig is a circle concentric with the through hole,
7. The connector characteristic measuring method according to claim 6, wherein a convex portion that engages with the second connector is provided on an inner surface of the connection portion.

Images