CN220856880U - Waveguide filter coupling assembly for ku wave band - Google Patents
Waveguide filter coupling assembly for ku wave band Download PDFInfo
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- CN220856880U CN220856880U CN202322587315.8U CN202322587315U CN220856880U CN 220856880 U CN220856880 U CN 220856880U CN 202322587315 U CN202322587315 U CN 202322587315U CN 220856880 U CN220856880 U CN 220856880U
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- 230000008878 coupling Effects 0.000 title claims abstract description 51
- 238000009434 installation Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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Abstract
The utility model discloses a waveguide filter coupling component for ku wave bands, which relates to the field of coupling components and comprises a first cavity, a second cavity, a fixing piece, a first coupling column, a second coupling column and a resonance component, wherein a mounting cavity is formed between the first cavity and the second cavity, a first end of the mounting cavity is provided with three connectors, a second end of the mounting cavity is provided with two connecting interfaces, and the two connecting interfaces are an input interface and a coupling output interface respectively; the second coupling column is fixedly connected with the SMP connector pin; the sizes of the three connection ports are sequentially reduced from the first end of the installation cavity to the second end, namely, the waveguide ports are in a gradual change structure from large to small inwards, and impedance is changed into branches from large to small, so that the standard waveguide BJ140 is changed into the output size of the small-volume filter. The problem that independent waveguide coaxial conversion equipment is required to be used is solved, and the product volume is effectively reduced.
Description
Technical Field
The utility model relates to the field of coupling components, in particular to a waveguide filter coupling component for ku wave bands.
Background
In the great background of the rapid development of the millimeter wave phased array radar field in recent years, the requirements of millimeter wave circuits and devices on miniaturization and multifunction are increasing. The waveguide is used as a transmission line commonly used in the millimeter wave field, has the advantages of small loss, large power capacity, simple structure and the like, and also has the disadvantages of large size, high integration difficulty and the like. In order to meet the updating requirement, the improvement of the integration level of the millimeter wave waveguide circuit becomes an important research target.
Disclosure of utility model
The utility model aims to solve the problems and design a waveguide filter coupling assembly for ku wave bands.
The utility model realizes the above purpose through the following technical scheme:
a waveguide filter coupling assembly for ku-band, comprising:
a first cavity;
A second cavity;
A fixing member; the fixing piece is used for fixedly connecting the first cavity and the second cavity, a mounting cavity is formed between the first cavity and the second cavity, three connecting ports are arranged at the first end of the mounting cavity, central axes of the three connecting ports coincide, the sizes of the three connecting ports are sequentially reduced from the first end of the mounting cavity to the second end, the largest connecting port is a BJ140 waveguide interface, two connecting interfaces are arranged at the second end of the mounting cavity, and the two connecting interfaces are an input interface and a coupling output interface respectively;
a first coupling post; the first coupling column is arranged on the side wall of the connecting port positioned in the middle position;
A second coupling post; the second coupling column is arranged at a coupling output interface of the mounting cavity and is fixedly connected with the SMP connector pin;
a resonant assembly; the resonant assembly is mounted within the mounting cavity.
The utility model has the beneficial effects that: the sizes of the three connection ports are sequentially reduced from the first end of the installation cavity to the second end, namely, the waveguide ports are in a gradual change structure from large to small, and impedance is changed into branches from large to small, so that the standard waveguide BJ40 is changed into the output size of the small-volume filter. Solves the problem that independent waveguide coaxial conversion equipment is required to be used, and effectively reduces the volume of the product
Drawings
FIG. 1 is a schematic diagram of the waveguide filter coupling assembly for ku-band of the present utility model;
FIG. 2 is a schematic diagram of the structure of a first cavity in the waveguide filter coupling assembly for ku band of the present utility model;
FIG. 3 is a schematic diagram of a second cavity in the waveguide filter coupling assembly for ku band of the present utility model;
FIG. 4 is a schematic illustration of a waveguide filter coupling assembly for ku-band in accordance with the present utility model;
wherein corresponding reference numerals are as follows:
1-first coupling post, 2-connecting screw hole, 3-resonance post, 4-coupling window, 5-debugging screw hole, 6-second coupling post, 7-resonance dish, 8-SMP coaxial connector, 12-first cavity, 13-second cavity, 14-installation cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The following describes specific embodiments of the present utility model in detail with reference to the drawings.
As shown in fig. 1, 2 and 3, the waveguide filter coupling assembly for ku band includes:
a first cavity 12;
a second cavity 13;
A fixing member; the fixing piece is used for fixedly connecting the first cavity 12 and the second cavity 13, an installation cavity 14 is formed between the first cavity 12 and the second cavity 13, three connecting ports are arranged at the first end of the installation cavity 14, central axes of the three connecting ports coincide, the sizes of the three connecting ports are sequentially reduced from the first end of the installation cavity 14 to the second end, the largest connecting port is a BJ140 waveguide interface, two connecting interfaces are arranged at the second end of the installation cavity 14, and the two connecting interfaces are an input interface and a coupling output interface respectively;
a first coupling post 1; the first coupling column 1 is installed on the side wall of the connection port located at the middle position;
A second coupling post 6; the second coupling column 6 is arranged at the coupling output interface of the mounting cavity 14, and the second coupling column 6 is fixedly connected with the SMP connector pin;
A resonant assembly; the resonant assembly is mounted within the mounting cavity 14.
The resonant assembly comprises a plurality of resonant studs 3, the plurality of resonant studs 3 being mounted in a mounting cavity 14.
The resonant assembly further comprises a resonant disk 7, the resonant disk 7 is fixedly mounted on the resonant column 3 at the input interface of the mounting cavity 14, and the SMP connector pin is fixedly connected with the resonant column 3 by soldering.
The resonance assembly further comprises a plurality of debugging screws, a plurality of debugging threaded holes 5 are formed in the second cavity 13, one debugging screw is in threaded connection with one debugging threaded hole 5, and the distance between the debugging screw and the resonance column 3 is larger than zero. A gap is formed between the debugging screw and the resonance column 3 to form a capacitance function
The fixing piece comprises at least one connecting screw, at least one connecting threaded hole 2 is formed in each of the first cavity 12 and the second cavity 13, and the connecting screw is in threaded connection with the connecting threaded holes 2 in the first cavity 12 and the second cavity 13.
Three connection ports 9, 10, 11: as shown in fig. 1, the 9→10→11 waveguide port adopts a gradual change structure from large to small inwards, and the standard waveguide BJ40 is converted into a small-volume filter output size from large to small in impedance for impedance transformation branches. The problem that independent waveguide coaxial conversion equipment is required to be used is solved, and the product volume is effectively reduced.
The first coupling column 11 between the first resonant cavity of the filter and the waveguide output plays a role in enhancing coupling, and effectively solves the problem that the broadband design of the small-volume waveguide-to-coaxial filter is difficult to realize.
The threaded connection hole 2 is used in combination with a connection screw for assembling the first cavity 12 and the second cavity 13 together.
The resonant columns 3 of the resonant cavity of the filter are used for increasing an electric field to reduce the volume of the resonant cavity of the filter, the filter is of a 6-level resonant structure, 6 resonant columns 3 are altogether, and each resonant column 3 and the space around the resonant column 3 in the mounting cavity 14 form a resonant cavity.
A coupling window 4 for determining the coupling size in the middle of the respective resonator.
The debugging threaded hole 5 is in threaded connection with a debugging screw, so that deviation caused by machining and assembling of the debugging compensation resonant column 3 is realized.
The function of the second coupling post 6 is to design a value for controlling the degree of coupling, and the SMP connector pin is soldered onto the second coupling post 6.
The addition of the resonator plate 7 to the resonator column 3 serves to further increase the electric field and reduce the volume of the filter cavity.
The SMP coaxial connector 8, which is the input interface for the product, is soldered around to the mounting cavity 14.
FIG. 4 is a calculated and modeled functional curve of the product electrical parameters of the waveguide filter coupling assembly of the present utility model.
The technical scheme of the utility model is not limited to the specific embodiment, and all technical modifications made according to the technical scheme of the utility model fall within the protection scope of the utility model.
Claims (5)
1. A waveguide filter coupling assembly for ku-band, comprising:
a first cavity;
A second cavity;
A fixing member; the fixing piece is used for fixedly connecting the first cavity and the second cavity, a mounting cavity is formed between the first cavity and the second cavity, three connecting ports are arranged at the first end of the mounting cavity, central axes of the three connecting ports coincide, the sizes of the three connecting ports are sequentially reduced from the first end of the mounting cavity to the second end, the largest connecting port is a BJ140 waveguide interface, two connecting interfaces are arranged at the second end of the mounting cavity, and the two connecting interfaces are an input interface and a coupling output interface respectively;
a first coupling post; the first coupling column is arranged on the side wall of the connecting port positioned in the middle position;
A second coupling post; the second coupling column is arranged at a coupling output interface of the mounting cavity and is fixedly connected with the SMP connector pin;
a resonant assembly; the resonant assembly is mounted within the mounting cavity.
2. The waveguide filter coupling assembly for ku-band of claim 1, wherein the resonating assembly comprises a plurality of resonating posts mounted within the mounting cavity.
3. The waveguide filter coupling assembly for ku-band of claim 2, further comprising a resonating plate fixedly mounted to the resonating post at the input interface of the mounting cavity with the SMP connector pin fixedly connected to the resonating post.
4. A waveguide filter coupling assembly for ku-band according to claim 2 or 3, wherein the resonator assembly further comprises a plurality of tuning screws, a plurality of tuning screw holes are provided in the second cavity, one tuning screw is screwed with one tuning screw hole, and a distance between the tuning screw and the resonator post is greater than zero.
5. The waveguide filter coupling assembly for ku-band of claim 1, wherein the fixing member comprises at least one connecting screw, at least one connecting threaded hole is provided in each of the first and second cavities, and the connecting screw is threadedly connected to the connecting threaded holes in the first and second cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322587315.8U CN220856880U (en) | 2023-09-22 | 2023-09-22 | Waveguide filter coupling assembly for ku wave band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322587315.8U CN220856880U (en) | 2023-09-22 | 2023-09-22 | Waveguide filter coupling assembly for ku wave band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220856880U true CN220856880U (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322587315.8U Active CN220856880U (en) | 2023-09-22 | 2023-09-22 | Waveguide filter coupling assembly for ku wave band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220856880U (en) |
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2023
- 2023-09-22 CN CN202322587315.8U patent/CN220856880U/en active Active
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