A 5G intermodulation combiner

Abstract

The utility model belongs to the technical field of combiners, and is particularly a 5G intermodulation combiner, comprising a cavity, a debugging cover plate arranged on the upper surface of the cavity, and an output port connector arranged on one side of the cavity, three groups of input port connectors are arranged on the other side of the cavity, a low-frequency input coupling rod is arranged in the input port connector on one side, a high-frequency input coupling rod is arranged in the input port connector on the other side, and an intermediate-frequency input coupling rod is arranged in the input port connector in the middle part, and multiple groups of debugging screws are installed on the debugging cover plate, which solves the problems of limited frequency selectivity of traditional intermodulation combiners, difficulty in frequency adjustment, and small frequency adjustable range. At the same time, by combining the three frequency bands of high, medium and low, the selection frequency band space is greatly increased, so that it can be used in product testing systems of more different models and different frequency bands, and has a wider application space.

Description

Technical Field

[0001] The utility model belongs to the technical field of combiners, and specifically relates to a 5G intermodulation combiner. Background Art

[0002] At present, the total number of Internet users in my country exceeds 1 billion, and the huge number of Internet users provides a strong endogenous driving force for promoting the high-quality development of my country's economy. First, the construction of basic Internet resources is accelerating, laying a solid foundation for the growth of Internet users; second, the basic services of digital applications are becoming increasingly rich, driving more Internet users to use them;

[0003] The advent of the 5G era, also known as the era of the Internet of Everything, will increase the number of communication base stations exponentially. To ensure communication quality and channel capacity, the 5G unit filter at the front end of our RF base station needs to have a higher signal filtering and processing capability. To ensure the quality of its filter, it is necessary to test the interference signal generated by itself. In the test system, the intermodulation combiner is an indispensable test device. Its function is to combine two high-power signals of different frequencies and input them into the 5G product RF unit, so as to detect whether the interference signal of the 5G product RF unit affects the normal signal transmission.

[0004] Currently, most existing 5G intermodulation combiners are two-band combiners with very limited frequency band selectivity. The frequency adjustable range of the intermodulation combiner is small, and the tap structure is mostly inductive coupling. If the adjustment is to be changed, the debugging cover needs to be opened, which is time-consuming and affects the performance, reducing the use effect of the device.

[0005] In order to solve the above problems, a 5G intermodulation combiner is proposed in this application. Utility Model Content

[0006] To solve the problems raised in the above background technology. The utility model provides a 5G intermodulation combiner, which solves the problems of limited frequency selectivity, difficulty in frequency modification, and small frequency adjustable range of traditional intermodulation combiners. At the same time, by combining three high, medium and low frequency bands, the frequency band selection space is greatly increased, so that it can be used in more product testing systems of different models and frequency bands, and has the characteristics of a wider application space.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a 5G intermodulation combiner, comprising a cavity, a debugging cover plate arranged on the upper surface of the cavity, and an output port connector arranged on one side of the cavity, three groups of input port connectors are arranged on the other side of the cavity, a low-frequency input coupling rod is arranged in the input port connector on one side, a high-frequency input coupling rod is arranged in the input port connector on the other side, an intermediate-frequency input coupling rod is arranged in the input port connector in the middle part, multiple groups of debugging screws are installed on the debugging cover plate, and an output port coupling rod is arranged inside the output port connector.

[0008] As a preferred 5G intermodulation combiner of the utility model, the surface of the debugging cover is provided with a plurality of groups of cover fastening screws arranged equidistantly, the surface of the cavity is provided with threaded holes adapted to the cover fastening screws, and the cavity and the debugging cover are connected by the cover fastening screws and the threaded holes.

[0009] As a preferred 5G intermodulation combiner of the utility model, the output port connector and the input port connector are both fixedly connected to the cavity by connector fastening screws.

[0010] As a preferred 5G intermodulation combiner of the utility model, the output port coupling rod is fixedly installed at the inner center of the output port connector, and the low-frequency input coupling rod, the intermediate-frequency input coupling rod and the high-frequency input coupling rod are all fixedly installed at the inner center of the input port connector.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] It solves the problems of limited frequency selectivity, difficulty in frequency modification, and small adjustable frequency range of traditional intermodulation combiners. At the same time, by combining the three frequency bands of high, medium and low, it greatly increases the frequency band selection space, so it can be used in more product test systems of different models and frequency bands, and has a wider application space. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is an exploded view of the overall structure of the utility model.

[0016] In the figure: 1. Cavity; 2. Low-frequency input coupling rod; 3. Intermediate-frequency input coupling rod; 4. Input port connector; 5. High-frequency input coupling rod; 6. Debug cover; 7. Cover fastening screw; 8. Debug screw; 9. Connector fastening screw; 10. Output port connector; 11. Output port coupling rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0018] like Figure 1-2 As shown:

[0019] A 5G intermodulation combiner comprises a cavity 1, a debugging cover plate 6 arranged on the upper surface of the cavity 1, and an output port connector 10 arranged on one side of the cavity 1. Three groups of input port connectors 4 are arranged on the other side of the cavity 1. A low-frequency input coupling rod 2 is arranged in the input port connector 4 on one side, a high-frequency input coupling rod 5 is arranged in the input port connector 4 on the other side, an intermediate-frequency input coupling rod 3 is arranged in the input port connector 4 in the middle part, multiple groups of debugging screws 8 are installed on the debugging cover plate 6, an output port coupling rod 11 is arranged inside the output port connector 10, and the debugging cover plate 6 is provided with a plurality of debugging screws 8. The surface of the test cover plate 6 is provided with multiple groups of cover plate fastening screws 7 arranged at equal distances, and the surface of the cavity 1 is provided with threaded holes compatible with the cover plate fastening screws 7. The cavity 1 and the debugging cover plate 6 are connected through the cover plate fastening screws 7 and the threaded holes. The output port connector 10 and the input port connector 4 are fixedly connected to the cavity 1 through the connector fastening screws 9. The output port coupling rod 11 is fixedly installed at the internal center of the output port connector 10, and the low-frequency input coupling rod 2, the intermediate-frequency input coupling rod 3 and the high-frequency input coupling rod 5 are all fixedly installed at the internal center of the input port connector 4.

[0020] Working principle and use process of the utility model: When using the 5G intermodulation combiner, first tighten the low-frequency input coupling rod 2, the medium-frequency input coupling rod 3, the high-frequency input coupling rod 5 and the input port connector 4 respectively, tighten the output port coupling rod 11 and the output port connector 10, and then lock the connector fastening screw 9 on the cavity 1; then put the prefabricated debugging screw 8 and the cover fastening screw 7 and the debugging cover 6 assembly on the cavity 1, and use an electric screwdriver to lock all the cover fastening screws 7. When locking the cover fastening screws 7 on the debugging cover 6, it is necessary to tighten them from the middle to the surrounding areas, so that the debugging cover 6 can be ensured to be in close contact with the cavity 1 (because the debugging cover 6 is not an absolute plane, so there is a certain flatness difference), thereby forming a complete and well-closed electromagnetic field space, and a 5G intermodulation combiner is assembled.

[0021] The assembled product can be debugged using a specific cable adapter. According to the requirements of the test system, select the three frequency bands that need to be debugged, namely the low-frequency input coupling rod 2, the medium-frequency input coupling rod 3, and the high-frequency input coupling rod 5, adjust the corresponding frequency debugging screw 8 to the corresponding frequency band position, and finally perform joint tuning to achieve the spectrum response of the specific frequency band.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A 5G intermodulation combiner, characterized in that: The invention comprises a cavity (1), a debugging cover plate (6) arranged on the upper surface of the cavity (1), and an output port connector (10) arranged on one side of the cavity (1); three groups of input port connectors (4) are arranged on the other side of the cavity (1); a low-frequency input coupling rod (2) is arranged in the input port connector (4) on one side; a high-frequency input coupling rod (5) is arranged in the input port connector (4) on the other side; an intermediate-frequency input coupling rod (3) is arranged in the input port connector (4) in the middle; a plurality of groups of debugging screw rods (8) are installed on the debugging cover plate (6); and an output port coupling rod (11) is arranged inside the output port connector (10).

2. The 5G intermodulation combiner according to claim 1, characterized in that: The surface of the debugging cover plate (6) is provided with a plurality of groups of cover plate fastening screws (7) arranged at equal distances, the surface of the cavity (1) is provided with threaded holes matched with the cover plate fastening screws (7), and the cavity (1) and the debugging cover plate (6) are connected via the cover plate fastening screws (7) and the threaded holes.

3. The 5G intermodulation combiner according to claim 1, characterized in that: The output port connector (10) and the input port connector (4) are both fixedly connected to the cavity (1) via connector fastening screws (9).

4. The 5G intermodulation combiner according to claim 1, characterized in that: The output port coupling rod (11) is fixedly mounted at the inner center of the output port connector (10), and the low-frequency input coupling rod (2), the intermediate-frequency input coupling rod (3) and the high-frequency input coupling rod (5) are all fixedly mounted at the inner center of the input port connector (4).

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