Coaxial-waveguide power synthesis device

Abstract

The utility model relates to the technical field of electromagnetic wave conduction, in particular to a coaxial-waveguide power synthesis device, which comprises a waveguide tube, an inner conductor and a coaxial, the waveguide tube comprises an open end and a closed end, the coaxial penetrates through the closed end and is connected with the inner conductor, the coaxial-waveguide power synthesis device further comprises a short-circuit block, one end of the short-circuit block is connected with the closed end, and the other end of the short-circuit block is connected with the inner conductor. One end of the waveguide tube is connected with the closed end, the other end of the waveguide tube is connected with the inner conductor, the inner conductor, the closed end and the inner wall of the waveguide tube are arranged at intervals, and the coaxial-waveguide power synthesis device can transmit heat of the inner conductor to the waveguide tube so as to dissipate the heat, reduce reflection and improve electromagnetic performance.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic wave transmission technology, and in particular to a coaxial-waveguide power combining device. Background Technology

[0002] A coaxial cable is a broadband microwave transmission line consisting of two coaxial cylindrical conductors, with air or a high-frequency dielectric filling the space between the inner and outer conductors.

[0003] A waveguide is a hollow, smooth-walled metal conduit or tube lined with metal, used to transmit ultra-high frequency electromagnetic waves. Through it, pulse signals can be transmitted to their destination with minimal loss.

[0004] Existing coaxial-waveguide power combining devices suffer from poor heat dissipation and significant reflection, which limits their application prospects. Utility Model Content

[0005] The purpose of this invention is to provide a coaxial-waveguide power combining device to solve at least one of the technical problems in the prior art.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A coaxial-waveguide power combining device includes a waveguide, an inner conductor, and a coaxial cable. The waveguide includes an open end and a closed end. The coaxial cable passes through the closed end and is connected to the inner conductor. The device also includes a short-circuit block, one end of which is connected to the closed end and the other end of which is connected to the inner conductor. The inner conductor is spaced apart from the closed end and the inner wall of the waveguide.

[0008] Furthermore, the coaxial components are either two or four.

[0009] Furthermore, the short-circuit block is centrally positioned between the coaxial axes.

[0010] Furthermore, the inner conductor includes a large end and a small end, with the large end facing the closed end and the small end facing the open end. The coaxial cable passes through the closed end and connects to the large end. One end of the short-circuit block is connected to the closed end, and the other end is connected to the large end.

[0011] Furthermore, a step is provided between the large end and the small end.

[0012] Furthermore, the large end smoothly transitions to the small end.

[0013] This utility model has the following advantages:

[0014] This utility model of a coaxial-waveguide power combining device is equipped with a short-circuit block. One end of the short-circuit block is connected to the closed end of the waveguide, and the other end is connected to the inner conductor. This allows the heat of the inner conductor to be transferred to the waveguide and dissipated, while also reducing reflection and improving electromagnetic performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 or Embodiment 2 of the coaxial-waveguide power combining device of this utility model;

[0017] Figure 2 This is a cross-sectional view of Example 1;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure after removing the waveguide in Example 1;

[0019] Figure 4 This is a cross-sectional view of Example 2;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure after removing the waveguide in Example 2;

[0021] Figure 6 This is a schematic diagram of the structure of Embodiment 3 or Embodiment 4 of the coaxial-waveguide power combining device of this utility model;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure after removing the waveguide in Example 3;

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure after removing the waveguide in Example 4;

[0024] In the diagram: 1-waveguide; 11-open end; 12-closed end; 2-inner conductor; 21-large end; 22-small end; 3-coaxial; 4-short-circuit block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] See Figures 1 to 8As shown, a coaxial-waveguide power combining device includes a waveguide 1, an inner conductor 2, and a coaxial cable 3. The waveguide 1 includes an open end 11 and a closed end 12. The inner conductor 2 is disposed inside the waveguide 1 and close to the closed end 12. The coaxial cable 3 includes an outer conductor, an inner conductor, and a dielectric material. The dielectric material is disposed between the outer conductor and the inner conductor. The outer conductor of the coaxial cable 3 is connected to the closed end 12, and the inner conductor of the coaxial cable 3 passes through the closed end 12 and is connected to the inner conductor 2. The coaxial-waveguide power combining device also includes a short-circuit block 4, which is disposed inside the waveguide 1. The length of the short-circuit block 4 matches the width of the inner conductor 2. One end of the short-circuit block 4 is connected to the closed end 12 of the waveguide 1, and the other end is connected to the inner conductor 2. The inner conductor 2 is spaced apart from the closed end 12 and spaced apart from the inner wall of the waveguide 1. The short-circuit block 4 can transfer the heat of the inner conductor 2 to the waveguide 1 to dissipate it, and can also reduce reflection and improve electromagnetic performance.

[0030] Furthermore, to obtain greater power, the coaxial cable 3 consists of two or four pieces; to further reduce reflection, the coaxial cable 3 is centrally positioned on the closed end 12; specifically, when there are two coaxial cables 3, the two coaxial cables 3 are centrally positioned on the closed end 12, and when there are four coaxial cables 3, the four coaxial cables 3 are centrally positioned on the closed end 12 (see...). Figure 1 and Figure 6 ).

[0031] Furthermore, to further reduce reflection, the number of short-circuit blocks 4 is one, and the short-circuit block 4 is centrally positioned between the coaxial lines 3, with intervals between the short-circuit block 4 and the coaxial lines 3; specifically, the short-circuit block 4 is centrally positioned between the upper coaxial line 3 and the lower coaxial line 3, and with intervals between the short-circuit block 4 and both the upper and lower coaxial lines 3 (see...). Figures 2 to 5 , Figure 7 and Figure 8 ).

[0032] Furthermore, to further reduce reflection, the inner conductor 2 includes a large end 21 and a small end 22. The small end 22 is equidistant from the upper and lower inner walls of the waveguide 1. The large end 21 faces the closed end 12, and the small end 22 faces the open end 11. The coaxial cable 3 passes through the closed end 12 and connects to the large end 21. One end of the short-circuit block 4 is connected to the closed end 12, and the other end is connected to the large end 21 (see...). Figure 2 and Figure 4 ).

[0033] Furthermore, to further reduce reflection, as one embodiment, a step is provided between the large end 21 and the small end 22, and the step is symmetrically arranged (see...). Figure 2 , Figure 3 and Figure 7 ).

[0034] Furthermore, to further reduce reflection, as another embodiment, the large end 21 smoothly transitions to the small end 22, that is, the large end 21 and the small end 22 are smoothly connected by a bevel, and the bevel is symmetrically arranged (see...). Figure 4 , Figure 5 and Figure 8 Compared to the step between the large end 21 and the small end 22, the large end 21 and the small end 22 of the inner conductor 2 in this embodiment are smoothly connected by a slope, which makes the length of the inner conductor 2 smaller, easier to process, and can further reduce reflection and improve electromagnetic performance.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coaxial-waveguide power combining device, comprising a waveguide (1), an inner conductor (2), and a coaxial cable (3), wherein the waveguide (1) comprises an open end (11) and a closed end (12), and the coaxial cable (3) passes through the closed end (12) and is connected to the inner conductor (2), characterized in that: It also includes a short-circuit block (4), one end of which is connected to the closed end (12) and the other end is connected to the inner conductor (2). The inner conductor (2) is spaced apart from the inner wall of the closed end (12) and the waveguide (1).

2. The coaxial-waveguide power combining device according to claim 1, characterized in that: The coaxial (3) consists of 2 or 4 pieces.

3. The coaxial-waveguide power combining device according to claim 2, characterized in that: The short-circuit block (4) is centrally positioned between the coaxial sections (3).

4. The coaxial-waveguide power combining device according to any one of claims 1 to 3, characterized in that: The inner conductor (2) includes a large end (21) and a small end (22). The large end (21) faces the closed end (12), and the small end (22) faces the open end (11). The coaxial cable (3) passes through the closed end (12) and is connected to the large end (21). One end of the short-circuit block (4) is connected to the closed end (12), and the other end is connected to the large end (21).

5. The coaxial-waveguide power combining device according to claim 4, characterized in that: A step is provided between the large end (21) and the small end (22).

6. The coaxial-waveguide power combining device according to claim 4, characterized in that: The large end (21) smoothly transitions to the small end (22).

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