Rectangular waveguide E-T joint
By adopting a bevel structure design in the rectangular waveguide E-T connector, the problem of poor impedance matching in the prior art is solved, and good matching within the entire waveguide bandwidth is achieved, which reduces processing errors and post-commissioning volume.
Patent Information
- Application Number
- CN202421199010.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing rectangular waveguide E-T joints are poorly matched due to accuracy problems during processing, which increases the amount of post-commissioning.
The rectangular waveguide E-T connector with a bevel structure reduces the number of steps through the vertical symmetrical design of the main waveguide and branch waveguide, thereby achieving impedance matching within the entire waveguide bandwidth and reducing machining errors.
It achieves good impedance matching, reduces processing time and cost, reduces post-commissioning volume, and even does not require debugging.
Smart Images
Figure CN222300830U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of microwaves, in particular to a rectangular waveguide ET connector. Background Art
[0002] Rectangular waveguide ET connectors are commonly used in power distribution, power synthesis, etc., and are a common device in the microwave field. The ET connector has three ports, one of which is a common port and two are distribution ports. When used for power distribution, the signal enters from the common port and is output from the two distribution ports. When used for power synthesis, two signals enter from the distribution port and are synthesized and output from the common port.
[0003] In order to achieve impedance matching of the ET connector within the full waveguide bandwidth, the common practice is to use multiple steps in the waveguide to perform impedance transformation, thereby achieving impedance matching within the full waveguide bandwidth. However, due to the problem of machining accuracy, this method will cause errors at each step during processing, thus affecting the overall indicators. Therefore, a large amount of debugging is required in the later stage. Utility Model Content
[0004] The utility model aims to provide a rectangular waveguide ET connector to solve the disadvantage of the prior art that the amount of late debugging is large.
[0005] The utility model is implemented by adopting the following technical scheme: a rectangular waveguide ET connector, characterized in that it includes a shell, a waveguide structure is arranged in the shell, the waveguide structure includes a main waveguide and a branch waveguide, both ends of the main waveguide and the branch waveguide are open, one end of the main waveguide is connected to one side of the branch waveguide, the main waveguide and the branch waveguide are vertically arranged, the branch waveguide is symmetrical with respect to the main waveguide, and the inner wall of the branch waveguide close to the main waveguide is an inclined surface.
[0006] Furthermore, the shell includes a cover plate and a main body, and the cover plate is connected to the main body by bolts.
[0007] Furthermore, the shell has three ports, namely a first distribution end, a second distribution end and a common end.
[0008] Furthermore, the first distribution end and the second distribution end are located at two ends of the branch waveguide, and the common end is located at an end of the main waveguide that is not connected to the branch waveguide.
[0009] Furthermore, the inclined surface makes the inner diameter of the branch waveguide gradually decrease from the port to the main waveguide.
[0010] The rectangular waveguide ET connector of the utility model has the following beneficial effects: the scheme can achieve good matching within the full waveguide bandwidth. Compared with the multi-step impedance transformation method, it changes from multiple steps to one bevel, which reduces the processing time, reduces the cost, has small processing errors, and reduces the amount of later debugging. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0012] Figure 1 A schematic diagram of a rectangular waveguide ET connector;
[0013] Figure 2 A schematic diagram of a rectangular waveguide ET connector cavity;
[0014] In the figure: 1-cover plate, 2-main body, 3-first distribution end, 4-second distribution end, 5-common end, 6-main waveguide, 7-branch waveguide, 8-inclined surface. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] like Figure 1-2 As shown, a rectangular waveguide ET connector comprises a cover plate 1 and a main body 2, wherein a T-shaped slot structure is arranged in the main body 2, the cover plate 1 is connected to the main body 2 by bolts, and the cover plate 1 and the main body 2 together constitute a T-shaped waveguide structure, wherein the T-shaped waveguide structure has three ports, namely a first distribution end 3, a second distribution end 4 and a common end 5, wherein a main waveguide 6 is arranged in the common end 5, and a branch waveguide 7 is arranged in the first distribution end 3 and the second distribution end 4, the first distribution end 3 and the second distribution end 4 are located on both sides of the common end 5, the main waveguide 6 and the branch waveguide 7 are arranged vertically, and the first distribution end 3 and the second distribution end 4 and the branch waveguide 7 are symmetrical structures.
[0018] The inner wall of the branch waveguide 7 in the first distribution end 3 and the second distribution end 4 close to the common end 5 is a slope 8, and the slope 8 makes the inner diameter of the branch waveguide 7 in the first distribution end 3 and the second distribution end 4 gradually decrease from the port to the common end 5.
[0019] By adopting the inclined plane 8 structure, the machining error is reduced while the machining accuracy remains unchanged, so the amount of later debugging is small or even no debugging is required.
[0020] The above embodiments describe the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the changes and modifications made by the technicians in this field shall be within the scope of protection of the claims attached to the utility model.
Claims
1. A rectangular waveguide ET connector, characterized in that: The invention comprises a shell, wherein a waveguide structure is arranged in the shell, wherein the waveguide structure comprises a main waveguide (6) and a branch waveguide (7), wherein both ends of the main waveguide (6) and the branch waveguide (7) are open, one end of the main waveguide (6) is connected to one side of the branch waveguide (7), the main waveguide (6) and the branch waveguide (7) are arranged vertically, and the inner wall of the branch waveguide (7) close to the main waveguide (6) is an inclined surface (8).
2. A rectangular waveguide ET connector according to claim 1, characterized in that: The housing comprises a cover plate (1) and a main body (2), and the cover plate (1) is connected to the main body (2) via bolts.
3. A rectangular waveguide ET connector according to claim 1, characterized in that: The housing has three ports in total, namely a first distribution end (3), a second distribution end (4) and a common end (5).
4. A rectangular waveguide ET connector according to claim 3, characterized in that: The first distribution end (3) and the second distribution end (4) are located at two ends of the branch waveguide (7).
5. A rectangular waveguide ET connector according to claim 3, characterized in that: The common end (5) is located at an end of the main waveguide (6) that is not connected to the branch waveguide (7).
6. A rectangular waveguide ET connector according to claim 1, characterized in that: The inclined surface (8) causes the inner diameter of the branch waveguide (7) to gradually decrease in a direction from the port to the main waveguide (6).
7. A rectangular waveguide ET connector according to claim 1, characterized in that: The branch waveguide (7) is symmetrical with respect to the main waveguide (6).