Inner conductor and power synthesis device

Abstract

The utility model relates to the technical field of electromagnetic wave conduction, in particular to an inner conductor and a power synthesis device, the inner conductor comprises a main circuit and a branch circuit, the branch circuit is provided with one or more bending parts, and the free ends A of the branch circuit face the same direction. Meanwhile, the size of the circuit can be reduced, and the power synthesis device adopts the inner conductor.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic wave conduction, and particularly relates to an inner conductor and a power combining device. Background Art

[0002] A power combining device is a device that combines the energy of two or more input signals into one output signal energy, and can also be used in reverse to divide the energy of one input signal into two or more output signal energies. In this case, it is a power distribution device.

[0003] The inner conductor is an important part of the power combining device.

[0004] The inner conductors of the prior art all adopt the method of quarter-wavelength impedance matching to achieve impedance matching. When the microwave frequency is low, due to the long wavelength, in order to achieve the matching impedance, the inner conductor has to be designed very long, resulting in its large volume, which is not conducive to the miniaturization of the power combining device and restricts its application prospects. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an inner conductor that can transform a planar circuit into a three-dimensional circuit and simultaneously reduce the volume of the circuit.

[0006] Another purpose of the utility model is to provide a power combining device that adopts the above inner conductor.

[0007] The purpose of the utility model is realized through the following technical solutions:

[0008] An inner conductor includes a main path and branch paths. One or more bending portions are provided on the branch paths, and the free ends A of the branch paths face the same direction.

[0009] Further, one or more bending portions are provided on the main path, and the free end A and the free end B of the main path face the same direction.

[0010] Further, the bending portions are bent along the thickness direction and / or the width direction of the inner conductor.

[0011] Further, the inner conductor is provided with holes for fixing.

[0012] Further, the number of the branch paths is 2 or 3.

[0013] A power combining device includes the inner conductor.

[0014] Further, it further includes a fixing member for fixing the inner conductor in the power combining device.

[0015] Further, the fixing member is made of an insulating material.

[0016] Further, the fixing member is made of polytetrafluoroethylene or ceramic.

[0017] Further, the branch of the power combining device is connected to a strip line, a microstrip line or a coaxial line, and the main path of the power combining device is connected to a strip line, a microstrip line or a coaxial line.

[0018] The present utility model has the following advantages:

[0019] One or more bent portions provided on the inner conductor branch can convert the planar circuit into a three-dimensional circuit, and at the same time reduce the volume of the inner conductor, which is beneficial to the miniaturization of the circuit. The power combining device using this inner conductor has a more compact structure and a smaller volume, which is conducive to the miniaturization of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a schematic structural diagram of Embodiment 1 of the inner conductor of the present utility model;

[0022] Figure 2 is a schematic structural diagram of Embodiment 2 of the inner conductor of the present utility model;

[0023] Figure 3 is a schematic structural diagram of Embodiment 3 of the inner conductor of the present utility model;

[0024] Figure 4 is a schematic structural diagram of Embodiment 4 of the inner conductor of the present utility model;

[0025] Figure 5 is a schematic structural diagram of Embodiment 1 of the power combining device of the present utility model;

[0026] Figure 6 is a schematic structural diagram of Embodiment 2 of the power combining device of the present utility model;

[0027] In the figure: 1 - main path; 11 - free end B; 2 - branch; 21 - free end A; 3 - hole; 4 - fixing member; 5 - strip line inner conductor; 6 - coaxial line inner conductor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0031] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, on top of, and over the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, beneath, and under the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0032] An inner conductor includes a main path 1 and a branch path 2. One or more bending portions are provided on the branch path 2, and the free end A 21 of the branch path 2 faces the same direction. Specifically, such as Figure 1 and Figure 3The inner conductor shown includes a main path 1 and a branch path 2. The cross-sections of both the main path 1 and the branch path 2 are rectangular. In order to transform the planar circuit into a three-dimensional circuit and simultaneously reduce the volume of the circuit, thus facilitating the miniaturization of the circuit, the branch path 2 is provided with a bending portion, and all the free ends A21 of the branch path 2 face the same direction; again, Figure 2 and Figure 4 The inner conductor shown includes a main path 1 and a branch path 2. The cross-sections of both the main path 1 and the branch path 2 are rectangular. In order to transform the planar circuit into a three-dimensional circuit and simultaneously reduce the volume of the circuit, thus facilitating the miniaturization of the circuit, the branch path 2 is provided with multiple bending portions, and all the free ends A 21 of the branch path 2 face the same direction; it should be particularly noted that the cross-sections of the main path 1 and the branch path 2 can be rectangular or circular, that is, the inner conductor is applicable to both strip lines and microstrip lines, and also to coaxial lines.

[0033] Furthermore, in order to further reduce the volume of the circuit, the main path 1 is provided with one or more bending portions, and all the free ends A 21 face the same direction as the free end B 11 of the main path 1; specifically, as Figures 1 to 4 shown in the inner conductor, the main path 1 is provided with a bending portion, and all the free ends A 21 face the same direction as the free end B 11 of the main path 1; due to space limitations, the case where the main path 1 is provided with multiple bending portions will not be elaborated further and is not shown in the figure either; all the free ends A 21 facing the same direction as the free end B 11 of the main path 1 can make the input end and the output end located on the same side of the power combining device, making its structure more compact and the volume smaller, which is beneficial to the miniaturization of the device.

[0034] Furthermore, the bending portion bends along the thickness direction and / or the width direction of the inner conductor; specifically, all the bending portions of the branch path 2 bend along the thickness direction or the width direction of the branch path 2, or / and, the bending portion of the main path 1 bends along the thickness direction or the width direction of the main path 1; it should be particularly noted that when there are two or more branch paths, one, two, or multiple of the branch paths can bend along the thickness direction of the branch path 2, and the remaining branch paths can bend along the width direction of the branch path 2, that is, the bending directions between the branch paths 2 can be the same or different. Similarly, the bending directions between the branch path 2 and the main path 1 can be the same or different; in the embodiment of the present application, the bending directions of the main path 1 and the branch path 2 are the same and both bend along their respective thickness directions.

[0035] Furthermore, the inner conductor is provided with holes 3 for fixing; specifically, as Figures 1 to 4 shown, holes 3 are provided on the main path 1 and / or the branch path 2, and the holes 3 are used to fix the main path 1 and / or the branch path 2; in the embodiment of the present application, holes 3 are provided on both the main path 1 and the branch path 2.

[0036] Further, the number of branches 2 is 2 ( Figure 1 and Figure 2 ) or 3 ( Figure 3 and Figure 4 ); in some embodiments, the number of branches 2 may also be more than 3.

[0037] A power combining device includes the inner conductor, and the inner conductor is disposed in the cavity of the power combining device.

[0038] Further, it further includes a fixing member 4, and the fixing member 4 is used to fix the inner conductor in the power combining device; specifically, as Figure 5 and Figure 6 shown, the fixing member 4 is in the shape of a pin shaft. After passing through the housing of the power combining device (not shown in the figure), the fixing member 4 is inserted into the holes 3 on the main path 1 and / or the branch 2, so as to be able to fix the inner conductor in the cavity of the power combining device; in the holes 3 of the main path 1 and the branch 2 of the embodiments of the present application, the fixing member 4 is provided.

[0039] Further, in order to reduce the influence on the electromagnetic transmission performance, the material of the fixing member 4 is an insulating material.

[0040] Further, the material of the fixing member 4 is polytetrafluoroethylene or ceramic.

[0041] Further, the branch of the power combining device is connected to a strip line, a microstrip line or a coaxial line, and the main path of the power combining device is connected to a strip line, a microstrip line or a coaxial line; in this embodiment, the branch of the power combining device is connected to a strip line, and the main path is connected to a coaxial line. Specifically, as Figure 5 and Figure 6 shown, the free end A21 of the branch 2 is connected to the inner conductor (5) of the strip line, and the housing of the power combining device (not shown in the figure) is connected to the outer conductor of the strip line (not shown in the figure), so as to realize the connection between the branch of the power combining device and the strip line; the free end B11 of the main path 1 is connected to the inner conductor (6) of the coaxial line, and the housing of the power combining device (not shown in the figure) is connected to the outer conductor of the coaxial line (not shown in the figure), so as to realize the connection between the main path of the power combining device and the coaxial line.

[0042] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An inner conductor, comprising a main path (1) and a branch path (2), characterized in that: The branch (2) is provided with one or more bending portions, the free ends A (21) of the branch (2) face the same direction, the main path (1) is provided with one or more bending portions, and the free ends A (21) and the free end B (11) of the main path (1) face the same direction.

2. The inner conductor according to claim 1, wherein: The bending portion is bent along the thickness direction and / or the width direction of the inner conductor.

3. The inner conductor according to claim 2, characterized in that: The inner conductor is provided with holes (3) for fixing purposes.

4. The inner conductor according to claim 2, characterized in that: The number of branches of the branch (2) is two or three.

5. A power combining device, characterized in that: It includes the inner conductor according to any one of claims 1 to 4.

6. The power combining device according to claim 5, characterized in that: It further includes a fixing member (4), and the fixing member (4) is used to fix the inner conductor in the power combining device.

7. The power combining device according to claim 6, wherein: The material of the fixing member (4) is an insulating material.

8. The power combining device according to claim 7, wherein: The material of the fixing member (4) is polytetrafluoroethylene or ceramic.

9. The power combining device according to any one of claims 5 to 8, characterized in that: The branch of the power combining device is connected to a strip line, a microstrip line or a coaxial line, and the main path of the power combining device is connected to a strip line, a microstrip line or a coaxial line.

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