JP2009245619A - Coaxial cable connection/phase adjusting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simply structured and inexpensive coaxial cable connection/phase adjusting device capable of precisely phase adjustment of a high frequency higher than a conventional one, and capable of maintaining the precise phase adjustment for a long period of time. <P>SOLUTION: In the coaxial cable connection/phase adjusting device, the female screw of the rotatable external conductor 12c of a second connector element 12 is threadedly engaged with the male screw of the external conductor 10c of a first connector element 10, a rod-shaped center conductor of the second connector element is inserted in the center hole of the hollow center conductor of the first connector element, the first and second connector elements are mutually and electrically connected thereby, a desired combination of a plurality of spacers 14a, 14b, 14c, 14d having mutually different prescribed thicknesses are held between the outwardly projecting part 10d of the base end part of the male screw and the chip of the external conductor of the second connector element on the periphery of the external conductor of the first connector element, and the insertion depth of the rod-shaped center conductor in the center hole of the hollow center conductor is adjusted to precisely adjust the phase of the high frequency. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a coaxial cable connection / phase adjustment device that connects two high-frequency coaxial cables and adjusts the phase of high-frequency waves flowing through the two coaxial cables.

  When two coaxial cables for high frequency are connected, it is necessary to adjust the phase of the high frequency flowing through the two coaxial cables. In the conventional coaxial cable connection / phase adjustment apparatus, the above-described phase adjustment is performed by changing the conductive line length in the apparatus by some method.

  For example, in the coaxial cable connection / phase adjustment device described in Japanese Patent Laid-Open No. 2005-175792 (Patent Document 1), the length of the conductive line is changed by interposing the external conductor 4 in the conductive line in the device. Is done.

  In the coaxial cable connection / phase adjusting device described in Japanese Patent Laid-Open No. 5-326076 (Patent Document 2), the first body member 2 slides in the longitudinal direction with respect to the second body member 3 to The conductive line length is changed.

  In the coaxial cable connection / phase adjustment apparatus described in Japanese Patent Laid-Open No. 2003-7406 (Patent Document 3), the effective dielectric constant in the conductive line in the apparatus is changed by incorporating the insulator piece 31 in the apparatus. The electric line length is changed.

Coaxial cable connection / phase adjustment devices require more precise phase adjustment as the frequency of the high frequency flowing therethrough increases. Moreover, it is also necessary to be able to maintain precise phase adjustment over a long period of time during use. Furthermore, it is desired that the configuration is simple and inexpensive.
Japanese Patent Laid-Open No. 2005-175792 JP-A-5-326076 JP 2003-7406 A

  In the coaxial cable connection / phase adjustment device described in Japanese Patent Laying-Open No. 2005-175792 (Patent Document 1), the structure for interposing the outer conductor 4 and the outer conductor 4 is complicated. In addition, precise adjustment of the phase cannot be easily performed.

  In the coaxial cable connection / phase adjusting device described in Japanese Patent Laid-Open No. 5-326076 (Patent Document 2), the relationship between the amount of sliding and the amount of phase change cannot be seen at a glance. The amount of change in the phase that accompanies the movement must be made by an independent measuring instrument connected to the coaxial cable. Therefore, the work required for precise phase adjustment is complicated.

  In the coaxial cable connection / phase adjustment apparatus described in Japanese Patent Laid-Open No. 2003-7406 (Patent Document 3), Japanese Patent Laid-Open No. 2005-175792 (Patent Document 1) in which the external conductor 4 is interposed in a conductive line in the device. The structure for interposing the insulator piece 31 and the insulator piece 31 is complicated as in the case of the coaxial cable connection / phase adjusting device described in (1). In addition, precise adjustment of the phase cannot be easily performed.

  The present invention has been made under the above circumstances, and an object of the present invention is to easily perform precise adjustment of a high-frequency phase having a higher frequency than before, and to precisely adjust the phase over a long period of time during use. And a coaxial cable connection / phase adjustment device that is simple and inexpensive.

  In order to achieve the above-mentioned object of the present invention, a coaxial cable connection / phase adjusting device according to the present invention is: electrically connected to a coaxial cable connection connected to a first coaxial cable and a central conductor of the first coaxial cable. A hollow central conductor that is connected to the coaxial cable connecting portion and protrudes in the axial direction, and is electrically connected to the outer conductor of the first coaxial cable and protrudes axially from the coaxial cable connecting portion to concentrically surround the hollow central conductor. A first threaded outer conductor including a male threaded outer conductor formed on the outer peripheral surface, and an outer projecting portion provided on a base portion of the outer peripheral surface of the male threaded outer conductor and projecting outward in the radial direction of the outer threaded male conductor. A connector element; a coaxial cable connection portion connected to the second coaxial cable; and a rod-shaped medium that is electrically connected to the central conductor of the second coaxial cable and protrudes axially from the coaxial cable connection portion The conductor is electrically connected to the outer conductor of the second coaxial cable, protrudes in the axial direction from the coaxial cable connecting portion, concentrically surrounds the rod-shaped center conductor, and has an internal thread formed on the inner peripheral surface, and is concentric with the rod-shaped center conductor An outer conductor with a female screw that is freely rotatable, and a detent screwed to the base end of the outer conductor with a female screw on the outer peripheral surface of the coaxial cable connection portion, Is screwed into the external thread of the external conductor with external thread of the first connector element, and the rod-shaped central conductor is inserted into the central hole of the hollow central conductor of the first connector element to be electrically connected to the first connector element. A connector element having a predetermined thickness different from each other, and a combination of one or a plurality of sheets providing a desired predetermined thickness is electrically connected to the first connector element and the second connector element. Connected to The outer projecting portion and the female screw of the second connector element are disposed between the outer projecting portion and the distal end of the outer conductor of the second connector element on the outer peripheral surface of the outer conductor with the male screw of the first connector element. A plurality of spacers sandwiched between the distal ends of the attached outer conductors, and a detent in the second connector element presses the proximal end of the outer threaded female conductor to prevent rotational movement of the female threaded outer conductor. It is characterized by that.

  The coaxial cable connection / phase adjustment apparatus only including the first connector element, the second connector element, and the plurality of spacers configured as described above has a simple configuration and is inexpensive.

  In addition, the precise adjustment of the phase of the high frequency can be achieved by using one spacer or a combination of a plurality of spacers providing a desired predetermined thickness on the outer surface of the outer conductor with a male thread of the first connector element. This can be easily performed by simply placing the second connector element between the outer threaded outer conductor of the second connector element and sandwiching it between the outer projecting portion and the outer threaded outer conductor of the second connector element. Various precise thickness spacers can be easily procured.

  Then, by pressing the detent on the proximal end of the female threaded outer conductor in the second connector element, the rotational movement of the female threaded outer conductor is prevented for a long period during use, and the precise adjustment of the phase is maintained. I can do it.

  As shown in FIGS. 1A and 1B, the coaxial cable connection / phase adjusting device according to one embodiment of the present invention is connected to a first coaxial cable not shown. A first connector element 10 and a second connector element 12 connected to a second coaxial cable (not shown) and detachably connected to the first connector element 10 are provided.

  The first connector element 10 is electrically connected to the coaxial cable connecting portion 10a connected to the first coaxial cable (not shown) and the central conductor of the first coaxial cable (not shown). The hollow central conductor 10b protruding in the axial direction from the portion 10a and the hollow central conductor 10b protruding in the axial direction from the coaxial cable connecting portion 10a that is electrically connected to the outer conductor of the first coaxial cable (not shown) described above. A male-threaded outer conductor 10c that is concentrically surrounded and has a male screw formed on the outer peripheral surface thereof, and an outward protrusion that is provided at the base of the outer peripheral surface of the male-threaded outer conductor 10c and projects outward in the radial direction of the male-threaded outer conductor 10c. Part 10d.

  The second connector element 12 is electrically connected to the coaxial cable connecting portion 12a connected to the second coaxial cable (not shown) and the center conductor of the second coaxial cable (not shown). The rod-shaped center conductor 12b that protrudes in the axial direction from the portion 12a and the rod-shaped center conductor 12b that is electrically connected to the outer conductor of the second coaxial cable (not shown) and that protrudes in the axial direction from the coaxial cable connection portion 12a A female threaded outer conductor 12c having a female thread formed on the inner peripheral surface thereof and concentrically rotatable with respect to the rod-shaped central conductor 12b, and a base end of the outer conductor 12c with the female thread on the outer peripheral surface of the coaxial cable connecting portion 12a. And a detent 12d screwed in and out of contact.

  As shown in FIG. 2, the second connector element 12 is screwed with the female thread on the inner peripheral surface of the outer conductor 12 c with the female thread to the male thread on the outer peripheral surface of the outer conductor 10 c with the male thread of the first connector element 10. The rod-shaped center conductor 12b is inserted into the center hole of the hollow center conductor 10b of the first connector element 10 and is electrically connected to the first connector element 10.

  The coaxial cable connection / phase adjusting device according to the embodiment of the present invention further has a predetermined thickness different from each other as shown in FIGS. 3 and 5, and the first connector element. 10 and the second connector element 12 are electrically connected to each other, the outer overhanging portion 10d and the second connector element 12 are externally threaded on the outer peripheral surface of the externally threaded external conductor 10c of the first connector element 10. It includes a plurality of spacers 14a, 14b, 14c, 14d,... Disposed between the tip of the conductor 12c.

  Each of the plurality of spacers 14a, 14b, 14c, 14d,... Can have a ring shape, and has a shape in which a part of the ring shape is cut out (for example, a C shape). Can be.

  The plurality of spacers 14a, 14b, 14c, 14d,... Are formed in a desired thickness or a combination of a plurality of desired thicknesses as shown in FIG. 3 or in FIG. As shown in the drawing, while the first connector element 10 and the second connector element 12 are electrically connected to each other as described above, the outer surface of the outer conductor 10c with the external thread of the first connector element 10 is outwardly connected. It is arranged between the projecting portion 10 d and the tip of the externally threaded outer conductor 12 c of the second connector element 12, and the externally threaded external conductor 12 c of the second connector element 12 is further connected to the externally threaded external conductor 10 c of the first connector element 10. By rotating and moving toward the outward projecting portion 10d on the external thread on the outer peripheral surface, as shown in FIG. 4 or as shown in FIG. It is held between the distal end of the outward projecting portion 10d and the internally threaded outer conductor 12c of the second connector element 12 in the outer peripheral surface of the male threaded outer conductor 10c of 10.

  Finally, in the second connector element 12, the detent 12d presses the proximal end of the externally threaded outer conductor 12c to prevent rotational movement of the externally threaded outer conductor 12c.

  The thickness of each of the plurality of spacers 14a, 14b, 14c, 14d,... Having a ring shape or a shape in which a part of the ring shape is notched can be set easily and precisely.

  Accordingly, as illustrated in FIG. 3 or as illustrated in FIG. 5, while the first connector element 10 and the second connector element 12 are electrically connected to each other as described above. A plurality of spacers 14 a, 14 b, 14 c, 14 d, between the outer projecting portion 10 d and the tip of the female threaded outer conductor 12 c of the second connector element 12 on the outer peripheral surface of the male threaded outer conductor 10 c of the first connector element 10. ... one of the desired thicknesses or a combination of a plurality of desired thicknesses are arranged, and the externally threaded outer conductor 12c of the second connector element 12 is replaced with the externally threaded outer conductor of the first connector element 10 As shown in FIG. 4 or as shown in FIG. 5, the outer tension is made by rotating and moving toward the outward projecting portion 10d on the male screw on the outer peripheral surface of 10c. Depending on the leading portion 10d and the tip of the externally threaded outer conductor 12c of the second connector element 12, one of the desired thicknesses of the plurality of spacers 14a, 14b, 14c, 14d,. If a plurality of combinations are sandwiched, the insertion depth of the rod-shaped center conductor 12b of the second connector element 12 with respect to the hollow center conductor 10b of the first connector element 10 can be precisely adjusted.

  Variation in the insertion depth of the rod-shaped center conductor 12b of the second connector element 12 with respect to the hollow center conductor 10b of the first connector element 10, that is, the outwardly protruding portion 10d of the first connector element 10 and the female screw of the second connector element 12 A length provided by one or a combination of a plurality of desired thicknesses among the plurality of spacers 14a, 14b, 14c, 14d,... Sandwiched between the tips of the external conductors 12c. The variation of the length ΔL (mm) is a high frequency (wavelength λmm) flowing through the hollow center conductor 10b of the first connector element 10 and the rod-shaped center conductor 12b of the second connector element 12 and has a phase of (ΔL × 360) / λdeg. Make a change.

(A) is a side view schematically showing a coaxial cable connection / phase adjustment device according to an embodiment of the present invention in a state where a first connector element and a second connector element are separated from each other; (B) is a schematic longitudinal cross-sectional view of the first connector element and the second connector element of the coaxial cable connection / phase adjusting device of (A). FIG. 2 is a longitudinal sectional view schematically showing the coaxial cable connection / phase adjusting device of FIG. 1A in a state where a first connector element and a second connector element are coupled to each other. In the coaxial cable connection / phase adjustment device of FIG. 1A, a predetermined frequency is set between the first connector element and the second connector element in order to adjust the phase of the high frequency flowing through the first connector element and the second connector element. It is a side view which shows a mode that the spacer of 1 sheet of thickness is interposed in the state which isolate | separated the 1st connector element and the 2nd connector element from each other. In the coaxial cable connection / phase adjusting device of FIG. 3, the first connector element and the second connector element are mutually connected by interposing a spacer having a predetermined thickness between the first connector element and the second connector element. It is a side view which shows roughly the state combined with. In the coaxial cable connection / phase adjustment apparatus of FIG. 1A, the first connector element and the second connector element are mutually connected to adjust the phase of the high frequency flowing through the first connector element and the second connector element. It is a side view showing roughly the state where the 1st connector element and the 2nd connector element were mutually joined by interposing in combination a plurality of spacers of different predetermined thickness.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... 1st connector element, 10a ... Coaxial cable connection part, 10b ... Hollow-shaped center conductor, 10c ... Outer conductor with external thread, 10d ... Outward projecting part, 12 ... 2nd connector element, 12a ... Coaxial cable connection part, 12b ... Rod-shaped central conductor, 12c ... Outer conductor with internal thread, 12d ... Detent, 14a, 14b, 14c, 14d ... Spacer.

Claims (3)

A coaxial cable connecting portion connected to the first coaxial cable, a hollow central conductor electrically connected to the central conductor of the first coaxial cable and protruding in the axial direction from the coaxial cable connecting portion, and an outer conductor of the first coaxial cable An outer conductor with a male thread that is concentrically surrounded by a hollow central conductor that protrudes in an axial direction from the coaxial cable connection and is formed with a male screw on the outer peripheral surface, and is provided at the base of the outer peripheral surface of the outer conductor with a male screw A first connector element comprising: an outwardly extending outwardly extending portion of the externally threaded outer conductor;
A coaxial cable connecting portion connected to the second coaxial cable, a rod-shaped central conductor electrically connected to the central conductor of the second coaxial cable and projecting axially from the coaxial cable connecting portion, and an outer conductor of the second coaxial cable. Coaxially connected to an outer conductor with a female thread that is electrically connected and protrudes in the axial direction from the coaxial cable connection, concentrically surrounds the rod-shaped center conductor, has an internal thread formed on the inner peripheral surface, and can rotate concentrically with the rod-shaped center conductor And a detent screwed to the outer peripheral surface of the cable connecting portion so as to be able to come into contact with and disengage from the base end of the female conductor with the female thread, and the female screw of the female conductor with the female thread is connected to the male connector of the first connector element. A second connector element screwed into the male screw and inserted into the central hole of the hollow central conductor of the first connector element to be electrically connected to the first connector element;
The first connector element and the second connector element are electrically connected to each other in a combination of one or more sheets having predetermined thicknesses different from each other and providing a desired predetermined thickness. The outer projecting portion and the female screw of the second connector element are disposed between the outer projecting portion and the distal end of the outer conductor of the second connector element on the outer peripheral surface of the outer conductor with the male screw of the first connector element. A plurality of spacers sandwiched between the tips of the attached outer conductors;
With
A coaxial cable connection / phase adjusting device characterized in that a detent in the second connector element presses the proximal end of the female conductor with female thread to prevent rotational movement of the female conductor with female thread.   The coaxial cable connection / phase adjustment apparatus according to claim 1, wherein each of the plurality of spacers has an annular shape.   2. The coaxial cable connection / phase adjustment apparatus according to claim 1, wherein each of the plurality of spacers has a shape in which a part of an annular shape is cut out.

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