CN215771491U - Combiner - Google Patents

Abstract

The utility model relates to the technical field of communication, and provides a combiner which comprises a cavity, a strip line, a partition plate group and a cover plate, wherein the cavity is provided with a first signal input port, a second signal input port, a third signal input port and a signal output port, and the cavity is partitioned by the partition plate group to form a first filtering cavity, a second filtering cavity and a third filtering cavity. The first filter cavity corresponds to the first signal input port, the second filter cavity corresponds to the second signal input port, and the third filter cavity corresponds to the third signal input port. One end of each filter is communicated with the signal output port, and the other end of each filter is communicated with the corresponding signal input port. The third signal input port is connected to the signal output port through a stripline to ensure the transmission efficiency of the third signal input port. The combiner has the advantages of clear internal structure, reasonable layout and better consistency and reliability.

Description

Combiner

Technical Field

The utility model relates to the technical field of communication, and particularly provides a combiner.

Background

In a mobile communication system, because multiple channels share one antenna, in order to avoid intermodulation interference caused by radio frequency coupling between different channels and consider factors such as economy, technology, erection site and the like, a combiner is needed to combine the multiple channels to one port to be connected to an antenna port.

However, when the existing combiner realizes multi-channel frequency modulation, the internal structure layout of the combiner is often complex, and the reliability of the combiner is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a combiner, aiming at solving the problem of low reliability caused by the complex internal structure of the existing combiner.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the application provides a combiner, which comprises a cavity, a strip line and a baffle plate group arranged in the cavity, and a cover plate covering the cavity and accommodating to form a closed space, wherein the cavity is provided with a first signal input port, a second signal input port, a third signal input port and a signal output port, the cavity body is divided by the clapboard component to form a first filtering cavity, a second filtering cavity and a third filtering cavity, one end of the first filtering cavity, one end of the second filtering cavity and one end of the third filtering cavity are all communicated with the signal output port, the other end of the first filter cavity is communicated with the first signal input port, the other end of the second filter cavity is communicated with the second signal input port, the other end of the third filter cavity is communicated with the third signal input port, and, the third signal input port is connected to the signal output port through the strip line.

The utility model has the beneficial effects that: the combiner provided by the utility model has the advantages that the inner space of the cavity is enclosed by the partition plate group to form the first filtering cavity, the second filtering cavity and the third filtering cavity, the first filtering cavity corresponds to the first signal input port, the second filtering cavity corresponds to the second signal input port, and the third filtering cavity corresponds to the third signal input port. And, the one end of each wave filter communicates in signal output port, realizes the unified output of signal, simultaneously, the other end of each wave filter communicates in corresponding signal input port, ensures corresponding signal input port's signal input to, third signal input port passes through the stripline and connects in signal output port to ensure third signal input port's transmission efficiency, the reliability promotes by a wide margin, to sum up, the inner structure of the combiner of this application is clear, and rationally distributed, has better uniformity and reliability.

In one embodiment, the ribbon wire includes a wire body having a first end connected to the third signal input port and a second end connected to the signal output port, and a plurality of ground connection arms extending outwardly from the wire body.

In one embodiment, the partition plate set includes two first sub-partition plates connected to the inner wall of the cavity and a second sub-partition plate disposed parallel to an inner side of the cavity, the two first sub-partition plates surround to form the second filter cavity, the second sub-partition plate surrounds to form the third filter cavity with the adjacent first sub-partition plate, and the other first sub-partition plate away from the second sub-partition plate surrounds to form the first filter cavity with the inner wall of the cavity.

In one embodiment, the partition plate group further includes a third sub-partition plate disposed in the first filter cavity and separating the first filter cavity into a first sub-cavity and a second sub-cavity, the third sub-partition plate and the inner wall of the cavity enclose to form the first sub-cavity, and the third sub-partition plate and the adjacent first sub-partition plate enclose to form the second sub-cavity.

In one embodiment, a plurality of first resonant columns are arranged in the first sub-cavity, and the combiner comprises a first tapping sheet, a first resonant rod corresponding to each first resonant column is arranged on the cover plate, and the first signal input port is connected to the first resonant column at the head position through the first tapping sheet;

and/or, be equipped with a plurality of first resonance posts in the second sub-chamber, and, the combiner includes first tap piece, be equipped with on the apron with each first resonance post corresponding first resonance pole, first signal input port through the first tap piece connect in first resonance post.

In one embodiment, the cover plate is further provided with a plurality of first adjusting screws, and each first adjusting screw is located between two adjacent first resonant rods.

In one embodiment, a plurality of second resonant columns are disposed in the second filter cavity, a second resonant rod corresponding to each of the second resonant columns is disposed on the cover plate, and the combiner includes a second tap piece, and the second signal input port is connected to the leading second resonant column through the second tap piece.

In one embodiment, a plurality of second adjusting screws are further disposed on the cover plate, and each second adjusting screw is located between two adjacent second resonant rods.

In one embodiment, a plurality of third resonant columns and a capacitive fly rod are arranged in the third filter cavity, the first end of the line body is connected to the first third resonant column, the second end of the line body is adjacent to the last third resonant column, and a third resonant rod corresponding to each third resonant column is arranged on the cover plate.

In one embodiment, a plurality of third adjusting screws are further disposed on the cover plate, and each third adjusting screw is located between two adjacent third resonant rods.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an exploded view of a combiner according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a stripline of a combiner according to an embodiment of the present invention;

fig. 3 is a main body diagram of a combiner according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a combiner according to an embodiment of the present invention;

fig. 5 is another schematic structural diagram of a combiner according to an embodiment of the present invention;

fig. 6 is another main body diagram of the combiner according to the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a resonant rod of a combiner according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an adjusting screw of the combiner according to the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10. a cavity; 20. a strip line; 30. a separator group; 40. a cover plate; 11. a first signal input port; 12. a second signal input port; 13. a third signal input port; 14. a signal output port; 10a, a first filter cavity; 10b, a second filter cavity; 10c, a third filter cavity; 21. a wire body; 22. a grounding connecting arm; 20a, a first end; 20b, a second end; 31. a first sub-separator; 32. a second sub-separator; 33. a third sub-separator; 10a1, a first subchamber; 10a2, second subchamber; 51. a first resonant column; 61. a first tap piece; 71. a first resonant rod; 81. a first adjusting screw; 52. a second resonant column; 72. a second resonant rod; 62. a second tap piece; 82. a second adjusting screw; 53. a third resonant column; 90. a capacitive fly rod; 73. a third resonant rod; 83. and a third adjusting screw.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 3, the combiner provided in the present application includes a cavity 10, a strip line 20 and a partition plate group 30 disposed in the cavity 10, and a cover plate 40 disposed on the cavity 10 and accommodated to form a closed space, it can be understood that an opening end of the cavity 10 has a mounting step, the cover plate 40 is disposed on the mounting step, and the cover plate 40 is connected to the mounting step by a screw. The cavity 10 has a first signal input port 11, a second signal input port 12, a third signal input port 13 and a signal output port 14, the cavity 10 is partitioned by a partition plate group 30 to form a first filter cavity 10a, a second filter cavity 10b and a third filter cavity 10c, one end of the first filter cavity 10a, one end of the second filter cavity 10b and one end of the third filter cavity 10c are all communicated with the signal output port 14, the other end of the first filter cavity 10a is communicated with the first signal input port 11, the other end of the second filter cavity 10b is communicated with the second signal input port 12, the other end of the third filter cavity 10c is communicated with the third signal input port 13, and the third signal input port 13 is connected to the signal output port 14 through a strip line 20. It is understood that the interior of the chamber 10 is partitioned by the partition plate group 30 to form a plurality of filter cavities, so that the combiner satisfies a multi-channel input and has an ultra-wideband characteristic. And, the third signal input port 13 transmits signals through a strip-shaped row line, which has good controllability and can further improve the transmission reliability of the whole combiner.

In the combiner provided by the utility model, the internal space of the cavity 10 is enclosed by the partition plate group 30 to form a first filtering cavity 10a, a second filtering cavity 10b and a third filtering cavity 10c, wherein the first filtering cavity 10a corresponds to the first signal input port 11, the second filtering cavity 10b corresponds to the second signal input port 12, and the third filtering cavity 10c corresponds to the third signal input port 13. And one end of each filter is communicated with the signal output port 14 to realize uniform signal output, and the other end of each filter is communicated with the corresponding signal input port to ensure the signal input of the corresponding signal input port.

Referring to fig. 1 and 2, in one embodiment, the strip line 20 includes a line body 21 and a plurality of grounding connection arms 22 extending from the line body 21, wherein the grounding connection arms 22 are connected to the inner wall of the chamber 10 by screws for realizing grounding requirements. Alternatively, mounting holes are opened at an end of the ground connection arm 22 remote from the main body, and, as shown in the drawing, the strip line 20 includes five ground connection arms 22. The line body 21 has a first end 20a connected to the third signal input port 13, and a second end 20b connected to the signal output port 14. Here, the first terminal 20a is a signal input terminal, and the second terminal 20b is a signal output terminal.

Referring to fig. 1, 3 and 4, in an embodiment, the partition plate group 30 includes two first sub-partition plates 31 connected to an inner wall of the chamber 10 and a second sub-partition plate 32 disposed parallel to an inner side of the chamber 10, the two first sub-partition plates 31 enclose to form a second filter cavity 10b, the second sub-partition plate 32 and the adjacent first sub-partition plate 31 enclose to form a third filter cavity 10c, and the other first sub-partition plate 31 far from the second sub-partition plate 32 and the inner wall of the chamber 10 enclose to form a first filter cavity 10 a. Here, each sub-partition is connected to the inside of the bottom of the chamber 10. Meanwhile, in order to improve the connection stability of the cover plate 40 and the cavity 10, a screw hole is formed in one end, away from the bottom of the cavity 10, of each sub-partition plate, so that the screws can be screwed conveniently.

Referring to fig. 3 and 4, in an embodiment, the partition plate set 30 further includes a third sub-partition plate 33 disposed in the first filter chamber 10a and separating the first filter chamber 10a into a first sub-chamber 10a1 and a second sub-chamber 10a2, the third sub-partition plate 33 encloses the inner wall of the chamber 10 to form a first sub-chamber 10a1, and the third sub-partition plate 33 encloses the adjacent first sub-partition plate 31 to form a second sub-chamber 10a 2. It is understood that the first signal input port 11 can transmit signals to the signal output port 14 through the first sub-cavity 10a1 or the second sub-cavity 10a2 according to actual requirements.

Specifically, referring to fig. 1 to 8, a plurality of first resonant pillars 51 are disposed in the first sub-cavity 10a1, the combiner includes a first tap piece 61, a first resonant rod corresponding to each first resonant pillar 51 is disposed on the cover plate 40, and the first signal input port 11 is connected to the first resonant pillar 51 through the first tap piece 61. Here, the bottom of each first resonant column 51 in the first sub-chamber 10a1 is connected to the inside of the bottom of the chamber 10. Each first resonant rod is inserted through the cover plate 40, and the distance between the first resonant rod and the first resonant column 51 is adjusted by a nut.

And/or, a plurality of first resonant columns 51 are arranged in the second sub-cavity 10a2, and the combiner includes first tap pieces 61, first resonant rods 71 corresponding to the first resonant columns 51 are arranged on the cover plate 40, and the first signal input port 11 is connected to the first resonant column 51 through the first tap piece 61. Similarly, the bottom of each first resonant column 51 in the second sub-chamber 10a2 is connected to the inner side of the bottom of the chamber 10. And each first resonance rod 71 is arranged through the cover plate 40, and the distance between the first resonance rod 71 and the first resonance column 51 is adjusted through a nut.

Referring to fig. 1 to 8, in an embodiment, the cover plate 40 is further provided with a plurality of first adjusting screws 81, and each first adjusting screw 81 is located between two adjacent first resonant rods 71. Here, the adjusting screws are used for frequency modulation, and each first adjusting screw 81 is inserted into the cover plate 40, and the depth of the first adjusting screw 81 extending into the cavity 10 is adjusted by a nut.

Specifically, referring to fig. 1 to 8, a plurality of second resonant columns 52 are disposed in the second filter cavity 10b, a second resonant rod 72 corresponding to each second resonant column 52 is disposed on the cover plate 40, and the combiner includes a second tap piece 62, and the second signal input port 12 is connected to the first second resonant column 52 through the second tap piece 62. Here, the bottom of each second resonant column 52 in the second filter chamber 10b is connected to the inside of the bottom of the chamber 10. Each second resonant rod 72 is inserted through the cover plate 40, and the distance between the second resonant rod 72 and the second resonant post 52 is adjusted by a nut.

Referring to fig. 1 to 8, in an embodiment, a plurality of second adjusting screws 82 are further disposed on the cover plate 40, and each second adjusting screw 82 is located between two adjacent second resonant rods 72. Similarly, each second adjusting screw 82 is inserted into the cover plate 40, and the depth of the second adjusting screw 82 extending into the cavity 10 is adjusted by a nut.

Specifically, referring to fig. 1 to 8, a plurality of third resonant columns 53 and a capacitive fly rod 90 are disposed in the third filter cavity 10c, the first end 20a of the wire body 21 is connected to the first third resonant column 53, the second end 20b of the wire body 21 abuts against the last third resonant column 53, and the cover plate 40 is provided with third resonant rods 73 corresponding to the third resonant columns 53. Here, the bottom of each third resonant column 53 in the third filter cavity 10c is connected to the inside of the bottom of the cavity 10. Each third resonant rod 73 is inserted through the cover plate 40, and the distance between the third resonant rod 73 and the third resonant post 53 is adjusted by a nut.

Referring to fig. 1 to 8, in an embodiment, a plurality of third adjusting screws 83 are further disposed on the cover plate 40, and each third adjusting screw 83 is located between two adjacent third resonant rods 73. Similarly, each third adjusting screw 83 is inserted into the cover plate 40, and the depth of the third adjusting screw 83 extending into the cavity 10 is adjusted by a nut.

For example, referring to fig. 3 to 6, in the present embodiment, a first tap piece 61 and seven first resonant columns 51 are disposed in the first sub-cavity 10a1, and the second end 20b of the strip line 20 is close to the last first resonant column 51, each first resonant column 51 corresponds to a first resonant rod 71, and, in addition, each first adjusting screw 81 is added, at this time, the pass band bandwidth range of the first sub-cavity 10a1 is 1695 and 1780 MHz. In the second sub-cavity 10a2, there are provided one first tap piece 61 and seven first resonant posts 51, and the second end 20b of the strip line 20 is close to the last first resonant rod 71, one first resonant rod 71 per one first resonant post 51, and first adjusting screws 81 are added. Here, the first sub-cavity 10a1 and the second sub-cavity 10a2 share the first tap piece 61, the first resonant post 51, the first resonant rod 71 and the strip line 20, and at this time, the pass band bandwidth of the second sub-cavity 10a2 is 2110-2200 MHz.

For example, referring to fig. 3 to 6, in the present embodiment, one second tap piece 62 and eight second resonant columns 52 are disposed in the second filter cavity 10b, and the second end 20b of the strip line 20 is close to the last second resonant column 52, each second resonant column 52 corresponds to one second resonant rod 72, and, in addition, each second adjusting screw 82 is added, at this time, the passband bandwidth of the second filter cavity 10b is 1850 and 1995 MHz. It should be noted that the second filter cavity 10b shares the last two resonant columns and resonant rods (i.e. the last two second resonant columns may also be the first resonant columns) and the strip line 20 with the second sub-cavity 10a2 of the first filter cavity 10 a.

For example, referring to fig. 3 to 6, in the present embodiment, one strip line 20 and seven third resonant columns 53 are disposed in the third filter cavity 10c, and each third resonant column 53 corresponds to one third resonant rod 73. Under the action of the strip line 20, the third resonant columns 53, the third resonant rods 73, the capacitive fly rod 90 and the third adjusting screws 83, the passband bandwidth of the third filter cavity 10c is 2305-2690 MHz. And the passband bandwidth of the third filter cavity 10c is 3400-. The third filter cavity 10c and the second filter cavity 10b share the last resonant rod (i.e. the last third resonant column may also be the second resonant column) and the strip line 20.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A combiner, comprising: comprises a cavity, a strip line and a clapboard group which are arranged in the cavity, and a cover plate which is covered on the cavity and is accommodated to form a closed space, the cavity having a first signal input port, a second signal input port, a third signal input port, and a signal output port, the cavity body is divided by the clapboard component to form a first filtering cavity, a second filtering cavity and a third filtering cavity, one end of the first filtering cavity, one end of the second filtering cavity and one end of the third filtering cavity are all communicated with the signal output port, the other end of the first filter cavity is communicated with the first signal input port, the other end of the second filter cavity is communicated with the second signal input port, the other end of the third filter cavity is communicated with the third signal input port, and, the third signal input port is connected to the signal output port through the strip line.

2. The combiner of claim 1, wherein: the ribbon wire includes a wire body and a plurality of ground connection arms extending outwardly from the wire body, the wire body having a first end connected to the third signal input port and a second end connected to the signal output port.

3. The combiner of claim 1, wherein: baffle group including connect in two first sub-baffles of the inner wall of cavity and be on a parallel with the second sub-baffle that an inboard of cavity set up, two first sub-baffle encloses to close and forms the second filters the chamber, the second sub-baffle encloses with neighbouring first sub-baffle and closes and form the third filters the chamber, and another keeps away from the second sub-baffle first sub-baffle with the inner wall of cavity encloses to close and forms first filtration chamber.

4. The combiner of claim 3, wherein: the baffle group is still including locating in the first filtering intracavity and will the first filtering intracavity separates the third sub-baffle that forms first sub-chamber and second sub-chamber, the third sub-baffle with the inner wall of cavity encloses to close and forms first sub-chamber, and, the third sub-baffle encloses with neighbouring first sub-baffle and closes and form the second sub-chamber.

5. The combiner of claim 4, wherein: a plurality of first resonance columns are arranged in the first sub-cavity, the combiner comprises a first tapping sheet, first resonance rods corresponding to the first resonance columns are arranged on the cover plate, and the first signal input port is connected to the first resonance column at the head position through the first tapping sheet;

and/or, be equipped with a plurality of first resonance posts in the second sub-chamber, and, the combiner includes first tap piece, be equipped with on the apron with each first resonance post corresponding first resonance pole, first signal input port through the first tap piece connect in first resonance post.

6. The combiner of claim 5, wherein: the cover plate is further provided with a plurality of first adjusting screw rods, and each first adjusting screw rod is located between two adjacent first resonance rods.

7. The combiner of claim 3, wherein: the combiner comprises a second tap piece, and the second signal input port is connected to the first resonance column through the second tap piece.

8. The combiner of claim 7, wherein: the cover plate is further provided with a plurality of second adjusting screw rods, and each second adjusting screw rod is located between two adjacent second resonance rods.

9. The combiner of claim 2, wherein: the third filter cavity is internally provided with a plurality of third resonance columns and a capacitive flying rod, the first end of the line body is connected with the first resonance column, the second end of the line body is adjacent to the last third resonance column, and the cover plate is provided with third resonance rods corresponding to the third resonance columns.

10. The combiner of claim 9, wherein: and a plurality of third adjusting screw rods are further arranged on the cover plate, and each third adjusting screw rod is positioned between two adjacent third resonance rods.

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