A downconverter with cavity filter device to resist ultra-strong 5G interference

Abstract

The invention relates to a downconverter with a cavity filtering device that is resistant to super-strong 5G interference, comprising a shell, an input cavity is arranged at the lower end of the shell, a filter cavity and a downconverter cavity are arranged on both sides of the shell, an input connector for receiving a signal is arranged in the input cavity, a filtering device is arranged in the filter cavity, a downconverter circuit board is arranged in the downconverter cavity, an output connector for outputting a signal is arranged on the shell, the input connector is connected to the input end signal of the filtering device, the output end of the filtering device is connected to the input end signal of the downconverter circuit board, and the output end of the downconverter circuit board is connected to the output connector signal; the filter function in the prior art is integrated into the downconverter to achieve two-in-one, effectively reduce the product size, save installation space, greatly reduce the production cost, and improve market competitiveness.

Description

Technical Field

[0001] The invention relates to the technical field of frequency downconverters, and in particular to a frequency downconverter with a cavity filtering device that is resistant to ultra-strong 5G interference. Background Art

[0002] Wireless communication is an extremely important part of the existing communication industry. Wireless communications such as radio, cordless phones, mobile phones, and Bluetooth can be seen everywhere in our daily lives. In the field of wireless communication, antennas are a key technology that cannot be abandoned, especially in long-distance microwave communications, which have a wider range of considerations.

[0003] With the advent of the 5G era, the problem of antenna signals being interfered by 5G signals is also increasing rapidly, resulting in the inability to clearly play the signal after receiving it. Therefore, it is necessary to add a filter that can filter 5G signals at the front end of the downconverter in the prior art. However, the filter in the prior art is not only expensive, but also adding the filter at the front end of the downconverter will increase the space occupied by the device, and the required installation space is longer, which cannot be favored by consumers. Therefore, designing a downconverter with a compact structure, capable of filtering 5G signals, and strong anti-interference is an urgent problem to be solved in the invention. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a downconverter with a compact structure and a cavity filtering device that is resistant to ultra-strong 5G interference.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A frequency reducer resistant to super-strong G interference comprises a shell, an input cavity is arranged at the lower end of the shell, a filter cavity and a frequency reduction cavity are arranged on both sides of the shell, an input connector for receiving a signal is arranged in the input cavity, a filter device is arranged in the filter cavity, a frequency reduction circuit board is arranged in the frequency reduction cavity, an output connector for outputting a signal is arranged on the shell, the input connector is signal-connected to an input end of the filter device, an output end of the filter device is signal-connected to an input end of the frequency reduction circuit board, and an output end of the frequency reduction circuit board is signal-connected to the output connector.

[0007] As a preferred embodiment, it is further defined as: the filtering device includes a base and a filtering cover plate arranged corresponding to the base, the base is provided with a filtering channel formed by a plurality of resonant cavities connected in sequence, an input space connected to the front end of the filtering channel, and an output space connected to the end of the filtering channel, the bottom of the input space is provided with an input hole corresponding to the input connector, and the bottom of the output space is provided with a first output hole; a resonant column is provided in the resonant cavity, the resonant column is a hollow column, the filtering cover plate is provided with through holes corresponding to the resonant columns one by one, and the through holes are provided with adjustable screws.

[0008] As a preferred embodiment, it is further defined as: the width of the upper end of the filter cavity is greater than the width of the lower end thereof so that a signal transmission space is formed at the upper end of the filter cavity and is located between the output end of the filter device and the frequency reduction cavity; the first output hole is connected to the signal transmission space, and the filter device wirelessly transmits the signal to the input end of the frequency reduction circuit board through the signal transmission space.

[0009] As a preferred implementation, it is further defined as: the cross section of the filter cavity is an inverted L shape.

[0010] As a preferred embodiment, it is further defined as: the signal transmission space is located at the upper end of the input cavity.

[0011] As a preferred implementation, it is further defined as: a partition member located outside the frequency reduction circuit board is further provided in the frequency reduction cavity.

[0012] As a preferred embodiment, it is further defined as: a second output hole adapted to the output connector is provided at the upper end of the shell.

[0013] As a preferred embodiment, it is further defined as: a first decorative cover plate covering the filter cavity is provided on one side of the shell, and a second decorative cover plate covering the frequency reduction cavity is provided on the other side of the shell.

[0014] As a preferred embodiment, it is further defined as: the bottom of the shell extends outward to form a mounting plate.

[0015] The beneficial effects of the invention are as follows: an input cavity is arranged at the lower end of the shell, a filter cavity and a frequency reduction cavity are arranged on both sides of the shell respectively, an input connector for receiving a signal is arranged in the input cavity, a filter device is arranged in the filter cavity, and a frequency reduction circuit board is arranged in the frequency reduction cavity, so that the filter function in the prior art is integrated into the frequency reducer to achieve two-in-one, effectively reduce the product size, save installation space, greatly reduce the production cost, and improve the market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the invention;

[0017] Figure 2 It is an exploded schematic diagram of the invention;

[0018] Figure 3 is a cross-sectional view of the shell;

[0019] Figure 4 It is a schematic diagram of the structure of the base. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] As attached Figure 1 To Attachment Figure 3 As shown, a frequency downconverter with a cavity filter device that resists super-strong 5G interference includes a housing 1, an input cavity 11 is provided at the lower end of the housing 1, and a filter cavity 12 and a frequency downconverter cavity 13 are provided on both sides of the housing 1, an input connector 2 for receiving signals is provided in the input cavity 11, a filter device 3 is provided in the filter cavity 12, a frequency downconverter circuit board 4 is provided in the frequency downconverter cavity 13, and an output connector 5 for outputting signals is provided on the housing 1, and both the input connector 2 and the output connector 5 are commonly used technical means for frequency downconverters in the prior art. The input connector 2 is connected to the input end signal of the filter device 3, the output end of the filter device 3 is connected to the input end signal of the frequency downconverter circuit board 4, and the output end of the frequency downconverter circuit board 4 is connected to the output connector 5. The design is ingenious, and the filter function in the prior art is integrated into the frequency downconverter to achieve two-in-one, effectively reducing the product size, saving installation space, greatly reducing production costs, and improving market competitiveness.

[0022] In this embodiment, the filter device 3 includes a base 31 and a filter cover plate 32 corresponding to the base 31. Figure 4As shown, the base 31 is provided with a filter channel 34 formed by a plurality of resonant cavities 33 connected in sequence, an input space 35 connected to the front end of the filter channel 34, and an output space 36 connected to the end of the filter channel 34. The bottom of the input space 35 is provided with an input hole 37 corresponding to the input connector 2. More specifically, the lower end of the filter cavity 12 is located at the side end of the input cavity 11, so that the input connector 2 can be fixedly installed in the input hole 37. The bottom of the output space 36 is provided with a first output hole 38; a resonant column 39 is provided in the resonant cavity 33, and the resonant column 39 is a hollow column. The filter cover plate 32 is provided with a through hole 30 corresponding to the resonant column 39. An adjustable screw is provided in the through hole 30. The structure of the resonant column 39 and the adjustable screw is a common technical means of the filter in the prior art. The structural diagram of the adjustable screw is omitted in the attached figure.

[0023] In this embodiment, the width of the upper end of the filter cavity 12 is greater than the width of the lower end thereof, so that a signal transmission space 14 located between the output end of the filter device 3 and the frequency reduction cavity 13 is formed at the upper end of the filter cavity 12; more specifically, the cross section of the filter cavity 12 is an inverted L-shape, and the signal transmission space 14 is located at the upper end of the input cavity 11. The positional relationship of the input cavity 11, the filter cavity 12, and the frequency reduction cavity 13 is reasonably distributed, so that the product size is more compact, the material of the housing 1 is effectively saved, and the production cost is reduced.

[0024] In this embodiment, the first output hole 38 is connected to the signal transmission space 14. The signal is input from the input connector 2 into the filter device 3 for filtering. After the clutter is filtered out, the signal enters from the first output hole 38. The signal is then transmitted to the input end of the frequency reduction circuit board 4 by wireless transmission for reception. In order to prevent the frequency reduction circuit board 4 from being interfered by external signals, a partition 6 located on the outside of the frequency reduction circuit board 4 is also provided in the frequency reduction cavity 13. The clutter transmitted from the outside of the frequency reduction cavity 13 is isolated by the partition 6 to ensure that the frequency reduction circuit board 4 is not interfered. The upper end of the housing 1 is provided with a second output hole 15 adapted to the output connector 5. The output connector 5 is installed in the second output hole 15, and the structure is simple.

[0025] In this embodiment, a first decorative cover plate 7 covering the filter cavity 12 is provided on one side of the housing 1. The first decorative cover plate 7 can modify the aesthetics of the filter cavity 12 on the one hand, and can prevent dust and protect the filter device 3 on the other hand, preventing the adjustable screw from being touched by the protrusion and affecting the stability of the work. A second decorative cover plate 8 covering the frequency reduction cavity 13 is provided on the other side of the housing 1. The second decorative cover plate 8 can modify the frequency reduction cavity 13 on the one hand, and can separate certain external clutter and protect the frequency reduction circuit board 4 from damage and influence by foreign objects on the other hand, thereby ensuring the stability of the work. The bottom of the housing 1 extends outward to form a mounting plate 16, which is convenient for fixed installation during on-site construction.

Claims

1. A downconverter with a cavity filter device to resist ultra-strong 5G interference, comprising a housing (1), characterized in that An input cavity (11) is provided at the lower end of the housing (1), and a filter cavity (12) and a frequency reduction cavity (13) are provided on both sides of the housing (1), an input connector (2) for receiving a signal is provided in the input cavity (11), a filter device (3) is provided in the filter cavity (12), a frequency reduction circuit board (4) is provided in the frequency reduction cavity (13), and an output connector (5) for outputting a signal is provided on the housing (1), the input connector (2) is signal-connected to an input end of the filter device (3), the output end of the filter device (3) is signal-connected to an input end of the frequency reduction circuit board (4), and the output end of the frequency reduction circuit board (4) is signal-connected to the output connector (5).

2. The anti-super-strong 5G interference downconverter with a cavity filter device according to claim 1 is characterized in that The filtering device (3) comprises a base (31) and a filtering cover plate (32) arranged corresponding to the base (31); a filtering channel (34) formed by a plurality of resonant cavities (33) connected in sequence, an input space (35) communicating with the front end of the filtering channel (34), and an output space (36) communicating with the end of the filtering channel (34) are arranged in the base (31); an input hole (37) corresponding to the input connector (2) is arranged at the bottom of the input space (35); a first output hole (38) is arranged at the bottom of the output space (36); a resonant column (39) is arranged in the resonant cavity (33); the resonant column (39) is a hollow column; through holes (30) corresponding to the resonant columns (39) are arranged on the filtering cover plate (32); and adjustable screws are arranged in the through holes (30).

3. The anti-super-strong 5G interference downconverter with a cavity filter device according to claim 2 is characterized in that The width of the upper end of the filter cavity (12) is greater than the width of the lower end thereof, so that a signal transmission space (14) located between the output end of the filter device (3) and the frequency reduction cavity (13) is formed at the upper end of the filter cavity (12); the first output hole (38) is in communication with the signal transmission space (14), and the filter device (3) wirelessly transmits the signal to the input end of the frequency reduction circuit board (4) through the signal transmission space (14).

4. The anti-super-strong 5G interference downconverter with a cavity filter device according to claim 3 is characterized in that The cross section of the filter cavity (12) is an inverted L-shape.

5. The anti-super-strong 5G interference downconverter with a cavity filter device according to claim 3 is characterized in that The signal transmission space (14) is located at the upper end of the input cavity (11).

6. The downconverter with cavity filter device for resisting super strong 5G interference according to any one of claims 1 to 5, characterized in that The frequency reduction chamber (13) is further provided with a partition (6) located outside the frequency reduction circuit board (4).

7. The anti-super-strong 5G interference downconverter with cavity filtering device according to claim 6, characterized in that The upper end of the housing (1) is provided with a second output hole (15) adapted to the output connector (5).

8. The anti-super-strong 5G interference downconverter with a cavity filter device according to claim 6, characterized in that A first decorative cover plate (7) covering the filter cavity (12) is provided on one side of the housing (1), and a second decorative cover plate (8) covering the frequency reduction cavity (13) is provided on the other side of the housing (1).

9. The anti-super-strong 5G interference downconverter with a cavity filter device according to claim 6, characterized in that The bottom of the housing (1) extends outwards to form a mounting plate (16).

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