CN217768716U

CN217768716U - Combiner

Info

Publication number: CN217768716U
Application number: CN202221795856.9U
Authority: CN
Inventors: 李安庆; 凤凌瀚; 方国涛
Original assignee: Anhui Post And Telecommunication College
Current assignee: Anhui Post And Telecommunication College
Priority date: 2022-07-10
Filing date: 2022-07-10
Publication date: 2022-11-08
Anticipated expiration: 2032-07-10

Abstract

The utility model discloses a combiner, the power distribution cavity comprises a cavity body, the cavity has signal input part, first signal output part and second signal output part, the inside of cavity is formed with first filtering chamber, second filtering chamber, third filtering chamber and fourth filtering chamber through the space bar, and just the one end in first filtering chamber, second filtering chamber, third filtering chamber and fourth filtering chamber all is linked together with signal input part, the one end in first filtering chamber is linked together with first signal output part through fourth output branch road, signal output part is provided with the input common port through the erection column. The utility model discloses in, saved the space of utilizing of space and maximize, reduced the debugging degree of difficulty.

Description

Combiner

Technical Field

The utility model relates to a microwave communication technical field especially relates to a combiner.

Background

With the development of fifth generation mobile communication, 5G signals already cover first and second line cities in China, but generally, in small and medium-sized cities, operators cannot dismantle some basic devices of 4G due to the number of 5G users, and a transition stage from 4G to 5G is required, however, most of existing combiners still have disadvantages: most of existing 4G and 5G receiving and transmitting shared combiners are required to be bent and formed in the process of mass production on one hand, consistency is difficult to ensure under the conditions of high frequency and bandwidth passing on the other hand, resonant peaks are easy to cause in a 5G frequency band in a cross-line mode, and debugging difficulty is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: the combiner is provided for solving the problems that on one hand, bending molding is needed in the mass production process, the consistency is difficult to ensure under the conditions of high frequency and bandwidth passing, and on the other hand, the cross line easily causes a resonance peak in a 5G frequency band, and the debugging difficulty is high.

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

a combiner comprises a cavity, wherein the cavity is provided with a signal input end, a first signal output end and a second signal output end, a first filtering cavity, a second filtering cavity, a third filtering cavity and a fourth filtering cavity are formed in the cavity through a partition plate, one ends of the first filtering cavity, the second filtering cavity, the third filtering cavity and the fourth filtering cavity are communicated with the signal input end, one end of the first filtering cavity is communicated with the first signal output end through a fourth output branch, the signal output end is provided with an input common end through a mounting column, the input common end is provided with a first input branch, a second input branch and a third input branch, the first input branch is communicated with a first output branch through the second filtering cavity, the second input branch is communicated with a second output branch through the third filtering cavity, the third input branch is communicated with a third output branch through the fourth filtering cavity, and the first output branch, the second output branch and the third output branch are connected with a second signal output end through the output common end and the mounting column.

As a further description of the above technical solution:

and the mounting column is provided with a mounting hole, and the mounting hole is used for mounting a probe.

As a further description of the above technical solution:

capacitive flying rods are arranged in the first filtering cavity, the second filtering cavity, the third filtering cavity and the fourth filtering cavity.

As a further description of the above technical solution:

the input common terminal and the output common terminal are in capacitive coupling.

As a further description of the above technical solution:

the first input branch frequency band is a mobile 4G frequency band (2300-2380), the first signal output end output frequency band is a 4GWLAN frequency band (2402-2483.5), the first output branch frequency band is a mobile 4G frequency band (2300-2380), the second input branch frequency band is a mobile 4G frequency band (2570-2620), the second output branch frequency band is a mobile 4G frequency band (2570-2620), the third input branch frequency band is a mobile 5G frequency band (3300-3600), and the third output branch frequency band is a mobile 5G frequency band (3300-3600).

As a further description of the above technical solution:

the capacitive coupling is realized by the electromagnetic field coupling connection of the port and the probe and the resonant column, and the electromagnetic field strength can be adjusted by adjusting the height and the coupling depth of the coupling position, so that different working bandwidths can be matched.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses in, because it closes the way to involve several high frequencies and broadband, each way all has more cross coupling, consequently, utilize HSS emulation to go out every way S parameter relatively difficult, and adopt two chamber emulation coupling coefficient forms must be the symmetrical chamber, in actual design, the size in every chamber all distinguishes, adopt a neotype full chamber coupling bandwidth simulation method, this kind of method does not prescribe a limit to the structure, can once only simulate all window sizes and resonance frequency, the space of utilizing of space and maximize has been saved, the emulation thinking also designs each way according to the filter structure, also carry out the emulation design alone to the position that the port closed, capacitive coupling mainly is the connected mode who realizes port and combiner, need not weld, connect installation probe, the resonance bar trompil, couple through the probe to the trompil position, the resonance bar is stronger up the electric field, the central point that the resonance bar trompil is the strongest place of electric field, simulate through electromagnetic field software, confirm resonance bar trompil position, thereby the debugging degree of difficulty has been reduced.

Drawings

Fig. 1 shows a schematic top view structure provided according to an embodiment of the present invention;

fig. 2 shows a schematic partial front cross-sectional structure diagram provided according to an embodiment of the present invention;

fig. 3 shows a schematic diagram of a left side structure provided according to an embodiment of the present invention;

fig. 4 shows a right side schematic structure diagram provided in accordance with an embodiment of the present invention.

Illustration of the drawings:

1. a cavity; 101. a signal input terminal; 102. a first signal output terminal; 103. a second signal output terminal; 10. a first filter cavity; 11. a second filter cavity; 12. a third filter cavity; 13. a fourth filter cavity; 2. mounting a column; 201. mounting holes; 3. inputting a public terminal; 31. an output common terminal; 4. a first input branch; 41. a first output branch; 5. a second input branch; 51. a second output branch; 6. a third input branch; 61. a third output branch; 7. a fourth output branch; 8. and (4) a capacitive flying rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a combiner, including cavity 1, cavity 1 has signal input part 101, first signal output part 102 and second signal output part 103, cavity 1's inside is formed with first filtering chamber 10 through the space bar, second filtering chamber 11, third filtering chamber 12 and fourth filtering chamber 13, and first filtering chamber 10, second filtering chamber 11, the one end of third filtering chamber 12 and fourth filtering chamber 13 all is linked together with signal input part 101, the one end of first filtering chamber 10 is linked together with first signal output part 102 through fourth output branch 7, signal output part is provided with input common port 3 through erection column 2, input common port 3 is provided with first input branch 4, second input branch 5 and third input branch 6, first input branch 4 has first output branch 41 through second filtering chamber 11 intercommunication, second input branch 5 has second output branch 51 through third filtering chamber 12 intercommunication, third input branch 6 has third output branch 61 through fourth filtering chamber 13 intercommunication, first output branch 41 and second output branch 103 are connected with second output terminal through erection column 61 and second common output terminal 31.

Specifically, as shown in fig. 2, a mounting hole 201 is provided on the mounting post 2, and the mounting hole 201 is used for mounting a probe.

Specifically, as shown in fig. 2, capacitive flying rods 8 are disposed inside the first filter cavity 10, the second filter cavity 11, the third filter cavity 12 and the fourth filter cavity 13.

Specifically, as shown in fig. 2, the input common port 3 and the output common port 31 are capacitively coupled, the capacitive coupling is an electromagnetic field coupling connection between the port and the probe and the resonant column, different working bandwidths can be matched by adjusting the height and the coupling depth of the coupling position and adjusting the strength of the electromagnetic field, the capacitive coupling mainly realizes a connection mode between the port and the combiner, welding is not needed, the probe is installed on the joint, the open hole position of the resonant rod is opened, the open hole position is coupled through the probe, the electric field is stronger when the resonant rod goes upwards, the center position of the open hole of the resonant rod is also the strongest place of the electric field, and the open hole position of the resonant rod is determined through simulation by electromagnetic field software.

Specifically, as shown in fig. 2, the first input branch 4 frequency band is a mobile 4G frequency band (2300-2380), the first signal output end 102 output frequency band is a 4GWLAN frequency band (2402-2483.5, the first output branch 41 frequency band is a mobile 4G frequency band (2300-2380), the second input branch 5 frequency band is a mobile 4G frequency band (2570-2620), the second output branch 51 frequency band is a mobile 4G frequency band (2570-2620, the third input branch 6 frequency band is a mobile 5G frequency band (3300-3600), and the third output branch 61 frequency band is a mobile 5G frequency band (3300-3600).

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The combiner comprises a cavity (1), and is characterized in that the cavity (1) is provided with a signal input end (101), a first signal output end (102) and a second signal output end (103), a first filtering cavity (10), a second filtering cavity (11), a third filtering cavity (12) and a fourth filtering cavity (13) are formed in the cavity (1) through a partition plate, one ends of the first filtering cavity (10), the second filtering cavity (11), the third filtering cavity (12) and the fourth filtering cavity (13) are communicated with the signal input end (101), one end of the first filtering cavity (10) is communicated with the first signal output end (102) through a fourth output branch (7), the signal output end is provided with an input common end (3) through an installation column (2), the input common end (3) is provided with a first input branch (4), a second input branch (5) and a third input branch (6), the first input branch (4) is communicated with the second input branch (5) through a second output branch (11), the third input common end (3) is communicated with the third input branch (41), the third input branch (41) is communicated with the third input branch (41), and the output branch (13) is communicated with the second input branch (41), the second output branch (51) and the third output branch (61) are connected with the second signal output end (103) through the output common end (31) and the mounting column (2).

2. Combiner according to claim 1, characterized in that the mounting post (2) is provided with a mounting hole (201), and the mounting hole (201) is used for mounting a probe.

3. Combiner according to claim 1, characterized in that the first filter cavity (10), the second filter cavity (11), the third filter cavity (12) and the fourth filter cavity (13) are internally provided with capacitive fly rods (8).

4. Combiner according to claim 1, characterized in that the input common (3) and the output common (31) are capacitively coupled.

5. The combiner according to claim 1, wherein the first input branch (4) has a frequency band of mobile 4G (2300-2380), the first signal output terminal (102) has an output frequency band of 4GWLAN (2402-2483.5), the first output branch (41) has a frequency band of mobile 4G (2300-2380), the second input branch (5) has a frequency band of mobile 4G (2570-2620), the second output branch (51) has a frequency band of mobile 4G (2570-2620), the third input branch (6) has a frequency band of mobile 5G (3300-3600), and the third output branch (61) has a frequency band of mobile 5G (3300-3600).

6. The combiner of claim 4, wherein the capacitive coupling is an electromagnetic field coupling connection between the port and the probe and the resonant column, and different operating bandwidths can be matched by adjusting the height of the coupling position and the coupling depth and adjusting the intensity of the electromagnetic field.