CN216214017U

CN216214017U - Double-directional double-ridge waveguide coupler

Info

Publication number: CN216214017U
Application number: CN202122964074.5U
Authority: CN
Inventors: 王杰
Original assignee: Chengdu Qilian Microwave Technology Co ltd
Current assignee: Chengdu Qilian Microwave Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-05
Anticipated expiration: 2031-11-29

Abstract

The utility model provides a dual-directional double-ridge waveguide coupler, which can improve the performance index of the dual-directional double-ridge waveguide coupler, and has the advantages of simple assembly, compact structure, small volume and convenient use, and the coupler comprises the following components which are arranged from top to bottom in sequence: the upper cover plate is provided with a first upper ridge of an upper coupling double-ridge waveguide; the upper cavity body is provided with a first lower ridge matched with the first upper ridge and a second upper ridge of the main path double-ridge waveguide, and a first asymmetric convex character groove array is arranged between the second upper ridge and the first lower ridge; the lower cavity is provided with a third upper ridge of the lower coupling double-ridge waveguide and a second lower ridge matched with the second upper ridge, and a second asymmetric convex-character groove array is arranged between the third upper ridge and the second lower ridge; the lower cover plate is provided with a third lower ridge matching the third upper ridge.

Description

Double-directional double-ridge waveguide coupler

Technical Field

The utility model relates to the field of couplers, in particular to a dual-orientation double-ridge waveguide coupler.

Background

With the continuous improvement of the performance of the millimeter wave power chip, the output power of the broadband millimeter wave power amplifier is higher and higher, and how to accurately and reliably monitor the output power of the broadband millimeter wave power amplifier is a difficult point of the design of the current broadband millimeter wave directional coupler. The traditional coaxial broadband millimeter wave strip line directional coupler has the detection power level of only 20W at most due to the voltage resistance of a connector, a printed board and the like. The rectangular waveguide directional coupler is because of bandwidth limitation, and both cannot meet the requirement of high output power of the broadband millimeter wave power amplifier.

The double-ridge waveguide has wider single-mode operating bandwidth, can bear hundreds of watts of power, and is the best choice for the broadband millimeter wave directional coupler. The operating bandwidth of a standard double-ridge waveguide is typically 2-3 octaves compared to a standard rectangular waveguide. The conventional circular hole coupling can not meet the requirements of the broadband millimeter wave directional coupler on bandwidth, directivity, size and the like, and the asymmetric cross slots which are uniformly distributed and the same are mostly adopted as coupling units in products on the market at present. In the prior art, the asymmetric cross grooves are uniformly distributed, each cross groove is identical, and the length of the transverse groove is different from that of the longitudinal groove. Because the transverse grooves have high-pass characteristics and the longitudinal grooves have low-pass characteristics, the length of the transverse grooves and the length of the longitudinal grooves are selected to form asymmetrical cross grooves.

However, the load of the existing double-ridge waveguide dual-directional coupler is mostly built in, and the size of the coupler is long. The load absorber of the double-ridge waveguide is special in shape, high in processing difficulty and high in cost; the existing double-ridge waveguide double-directional coupler does not adopt a standardized universal design and cannot meet the requirement of customer diversity; the asymmetric cross slots which are uniformly distributed and the same are used as coupling units, so that the optimal performance index of the directional coupler cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dual-directional double-ridge waveguide coupler which can improve the performance index of the dual-directional double-ridge waveguide coupler and has the advantages of simple assembly, compact structure, small volume and convenient use.

The embodiment of the utility model is realized by the following steps:

a dual-directional double-ridge waveguide coupler comprises the following components in sequence from top to bottom: the upper cover plate is provided with a first upper ridge of an upper coupling double-ridge waveguide; the upper cavity body is provided with a first lower ridge matched with the first upper ridge and a second upper ridge of the main path double-ridge waveguide, and a first asymmetric convex character groove array is arranged between the second upper ridge and the first lower ridge; the lower cavity is provided with a third upper ridge of the lower coupling double-ridge waveguide and a second lower ridge matched with the second upper ridge, and a second asymmetric convex-character groove array is arranged between the third upper ridge and the second lower ridge; the lower cover plate is provided with a third lower ridge matching the third upper ridge.

In a preferred embodiment of the present invention, the bottom of the upper cover plate is further provided with a first groove, and the first upper ridge is disposed in the first groove.

In a preferred embodiment of the present invention, the upper surface of the upper cavity is provided with a second groove, and the first lower ridge and the first asymmetric embossed groove array are disposed in the second groove; the bottom of the upper cavity is provided with a third groove for accommodating the second upper ridge.

In a preferred embodiment of the present invention, a fourth groove is disposed on the upper surface of the lower cavity, and the shape of the fourth groove matches the shape of the third groove; the bottom of lower cavity is provided with the fifth recess, and second asymmetric embossed groove array and second lower ridge set up in the fifth recess.

In a preferred embodiment of the present invention, the upper surface of the lower cover plate is provided with a sixth groove, the shape of the sixth groove matches with the shape of the fifth groove, and the third lower ridge is disposed in the sixth groove.

In a preferred embodiment of the present invention, the coupler further includes pins, and the pins are soldered on the upper cavity and the lower cavity.

In a preferred embodiment of the present invention, the coupler further includes connectors, the connectors are mounted on the upper cover plate and the lower cover plate, and the connectors are connected to the pins.

In a preferred embodiment of the present invention, the coupler further includes a positioning pin fixed to the lower cover plate, and when the coupler is installed, the lower cavity, the upper cavity and the upper cover plate are sequentially stacked on the lower cover plate.

In a preferred embodiment of the present invention, the upper cover plate, the upper cavity, the lower cavity and the lower cover plate are fastened and connected by a combination screw.

The embodiment of the utility model has the beneficial effects that: the bidirectional double-ridge waveguide coupler modularizes the upper cover plate, the upper cavity, the lower cavity and the lower cover plate, has the characteristics of simple assembly, compact structure, small volume and the like, adopts the conversion of standardized universal orthogonal coaxial and double-ridge waveguides, and is convenient to replace the connector; different convex groove arrays are uniformly distributed on the upper cavity and the lower cavity, so that the performance index of the dual-directional double-ridge waveguide coupler is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a coupler according to an embodiment of the present invention;

FIG. 2 is a schematic bottom structure view of an upper cover plate according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the bottom structure of the upper chamber according to the embodiment of the present invention;

FIG. 4 is a schematic view of the upper surface structure of the upper chamber body according to the embodiment of the present invention;

FIG. 5 is a schematic diagram of the upper surface structure of the lower chamber according to the embodiment of the present invention;

FIG. 6 is a bottom structure of the lower chamber according to the embodiment of the present invention;

fig. 7 is a schematic view of the upper surface structure of the lower cover plate according to the embodiment of the utility model.

Icon: 100-an upper cover plate; 200-an upper cavity; 300-a lower cavity; 400-lower cover plate; 110 — a first upper ridge; 120-a first groove; 210-a first lower ridge; 220-second upper ridge; 230-a first asymmetric embossed groove array; 240-a second groove; 250-a third groove; 310-third superior ridge; 320-a second lower ridge; 330-a second asymmetric embossed groove array; 340-a fourth groove; 350-fifth groove; 410-a third lower ridge; 420-a sixth groove; 500-inserting pins; 600-a connector; 700-locating pins; 800-combination screw; 900-connector combination screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention 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 present invention, 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

First embodiment

Referring to fig. 1-7, in this embodiment, a WRD180C24 dual-directional dual-ridge waveguide coupler is taken as an example, and the coupler includes, from top to bottom: an upper cover plate 100, an upper chamber 200, a lower chamber 300, and a lower cover plate 400. The upper cover plate 100 is provided with a first upper ridge 110 on which a double-ridge waveguide is coupled; the upper cavity 200 is provided with a first lower ridge 210 matching the first upper ridge 110 and a second upper ridge 220 of the main-path double-ridge waveguide, and a first asymmetric embossed groove array 230 is provided between the second upper ridge 220 and the first lower ridge 210; the lower cavity 300 is provided with a third upper ridge 310 of a lower coupling double-ridge waveguide and a second lower ridge 310 matched with the second upper ridge 220, a second asymmetric convex groove array 330 is arranged between the third upper ridge 320 and the second lower ridge 310, and different convex groove arrays are uniformly distributed, so that the performance index of the double-directional double-ridge waveguide coupler is improved; the lower cover plate 400 is provided with a third lower ridge 410 matching the third upper ridge 320.

In the embodiment, different uniformly-arranged convex groove arrays are adopted, so that the coupling flatness and the directivity performance of the dual-directional double-ridge waveguide coupler are further improved. Meanwhile, the conversion structure of orthogonal coaxial and double-ridge waveguides is optimized, and the total length of the dual-directional double-ridge waveguide coupler is shortened.

Referring to fig. 2-7, in the present embodiment, the upper cover plate 100, the upper cavity 200, the lower cavity 300 and the lower cover plate 400 are respectively milled with shallow grooves on three contact surfaces of 4 components to ensure tight connection of the components and avoid signal leakage. Specifically, the bottom of the upper cover plate 100 is further provided with a first groove 120, and the first upper ridge 110 is disposed in the first groove 120. The upper surface of the upper cavity 200 is provided with a second groove 240, and the first lower ridge 210 and the first asymmetric embossed groove array 230 are arranged in the second groove 240; the bottom of the upper cavity 200 is provided with a third groove 250 that receives the second upper ridge 220. The upper surface of the lower cavity 300 is provided with a fourth groove 340, and the shape of the fourth groove 340 is matched with that of the third groove 250; the bottom of the lower chamber 300 is provided with a fifth groove 350, and the second asymmetric embossed groove array 330 and the second lower ridge 320 are disposed in the fifth groove 350. The upper surface of the lower cover plate 400 is provided with a sixth groove 420, the shape of the sixth groove 420 matches the fifth groove 350, and a third lower ridge 410 is disposed in the sixth groove 420.

Referring to fig. 1, the coupler in this embodiment further includes a pin 500, and the pin 500 is welded to the upper cavity 200 and the lower cavity 300. The coupler further includes a connector 600, the connector 600 being mounted on the upper and

lower cover plates

100 and 400, the connector 600 being connected with the pins 500. The coupler further includes a dowel pin 700, and the dowel pin 700 is fixed to the lower cover 400, and when installed, the lower chamber 300, the upper chamber 200, and the upper cover 100 are sequentially stacked on the lower cover 400. The upper cover plate 100, the upper cavity 200, the lower cavity 300 and the lower cover plate 400 are fastened and connected by a combination screw 800.

The assembly relationship of the dual-directional double-ridge waveguide coupler is as follows: firstly, a tooling is used for welding the pins 500 on the upper cavity 200 and the lower cavity 300, so that the positions of the pins 500 are ensured to be concentric with the circular holes of the connector 600 on the upper cover plate and the lower cover plate and to be flush with the flange contact surface of the connector 600. Next, the lower chamber 300, the upper chamber 200, and the upper cover 100 are sequentially stacked on the lower cover 400 through the pin holes by means of the positioning pins 700 on the lower cover 400, and fastened by the cover assembly screws 800. Finally, the inner conductor of the connector 600 is connected to the pins of the connector 600 by the pins 500 soldered to the upper and lower cavities 300, and is fastened by the connector assembly screw 900.

In summary, the bi-directional double-ridge waveguide coupler of the present invention modularizes the upper cover plate 100, the upper cavity 200, the lower cavity 300 and the lower cover plate 400, has the characteristics of simple assembly, compact structure, small volume, etc., and is convenient to replace the connector 600 by adopting the conversion of standardized universal orthogonal coaxial and double-ridge waveguides; different convex-character groove arrays are uniformly distributed on the upper cavity 300 and the lower cavity 300, so that the performance index of the dual-directional double-ridge waveguide coupler is improved.

This description describes examples of embodiments of the utility model, and is not intended to illustrate and describe all possible forms of the utility model. It should be understood that the embodiments described in this specification can be implemented in many alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. It will be appreciated by persons skilled in the art that a plurality of features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to form embodiments which are not explicitly illustrated or described. The described combination of features provides a representative embodiment for a typical application. However, various combinations and modifications of the features consistent with the teachings of the present invention may be used as desired for particular applications or implementations.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a two directional two ridge waveguide couplers which characterized in that, the coupler includes from last to setting gradually down:

the upper cover plate is provided with a first upper ridge of an upper coupling double-ridge waveguide;

the upper cavity is provided with a first lower ridge matched with the first upper ridge and a second upper ridge of a main-path double-ridge waveguide, and a first asymmetric convex-character-shaped groove array is arranged between the second upper ridge and the first lower ridge;

the lower cavity is provided with a third upper ridge of a lower coupling double-ridge waveguide and a second lower ridge matched with the second upper ridge, and a second asymmetric convex-character groove array is arranged between the third upper ridge and the second lower ridge;

and the lower cover plate is provided with a third lower ridge matched with the third upper ridge.

2. The dual directional double ridge waveguide coupler of claim 1 wherein the bottom of the upper cover plate is further provided with a first groove, the first upper ridge being disposed within the first groove.

3. The dual directional double ridge waveguide coupler of claim 2 wherein the upper surface of the upper cavity is provided with a second groove, the first lower ridge and the first asymmetric embossed groove array being disposed within the second groove; and a third groove for accommodating the second upper ridge is arranged at the bottom of the upper cavity.

4. The dual directional double ridge waveguide coupler of claim 3 wherein the upper surface of the lower cavity is provided with a fourth groove, the shape of the fourth groove matching the third groove; the bottom of the lower cavity is provided with a fifth groove, and the second asymmetric convex groove array and the second lower ridge are arranged in the fifth groove.

5. The dual directional double ridge waveguide coupler of claim 4 wherein the upper surface of the lower cover plate is provided with a sixth groove having a shape matching the fifth groove, the third lower ridge being disposed within the sixth groove.

6. The bi-directional double ridge waveguide coupler of claim 1 further comprising pins soldered to the upper and lower cavities.

7. The dual directional double ridge waveguide coupler of claim 6 further comprising connectors mounted on said upper and lower cover plates, said connectors being connected to said pins.

8. The dual orientation dual ridge waveguide coupler of claim 1 further comprising a locating pin affixed to the lower cover plate for sequentially stacking the lower cavity, upper cavity, and upper cover plate onto the lower cover plate when installed.

9. The dual directional double ridge waveguide coupler of claim 1 wherein the upper cover plate, the upper cavity, the lower cavity and the lower cover plate are fastened together by a combination screw.