Broadband resistance combiner

Abstract

The utility model relates to the technical field of combiners, and discloses a broadband resistance combiner, which comprises a cavity. The cover plate is mounted at the opening of the cavity, and a plurality of groups of debugging screw rods are mounted on the cover plate; the public port connector is fixedly mounted on a right port of the cavity through a fastening screw, and a public port connecting rod is welded and fixed on the public port connector; the broadband blocking combiner not only undertakes the transmission task of low-end broadband signals of the combiner through the transmission sheet, but also realizes the function of coupling with a stop-band zero cavity, and the plastic gasket is padded below the transmission sheet, so that the design can realize zero-cavity coupling transmission, but also can realize zero-cavity coupling transmission. In addition, the cavity and the cover plate are combined to form a closed electromagnetic field transmission space, and transmission of specific frequency signals is ensured.

Description

Technical Field

[0001] This utility model relates to the field of combiner technology, specifically a broadband blocking combiner. Background Technology

[0002] Combiners are key components in electronic systems. Their main function is to integrate signals from multiple sources and transmit them through a single output port. This characteristic makes combiners widely used in fields such as wireless equipment, communication systems, radar, and television broadcasting.

[0003] The design and implementation of combiners usually face a series of challenges. On the one hand, since they need to cover multiple signals, their passband requirements are relatively wide. It is difficult to achieve this goal using conventional coaxial structures, and it will lead to structural complexity. On the other hand, although using a band-stop structure can suppress signals in a specific frequency range, it allows signals of other frequencies to pass through smoothly.

[0004] Existing band-stop combiners typically connect the zero cavity to the main signal via welding or metal screws. This connection method is prone to generating intermodulation signals due to poor contact, which affects the sensitivity of the received signal. Therefore, we propose a wideband band-stop combiner to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a wideband stop combiner, which solves the problem that stop combiners typically connect the zero cavity to the main signal via welding or metal screws. This connection method is prone to generating intermodulation signals due to poor contact, thereby affecting the sensitivity of the received signal.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a broadband blocking and combining circuit breaker, comprising a cavity;

[0007] A cover plate is installed at the opening of the cavity, and multiple sets of adjustment screws are installed on the cover plate;

[0008] A common port connector is fixedly installed on the right port of the cavity by fastening screws, and a common port connecting rod is welded and fixed to the common port connector;

[0009] The cavity has two sets of ports on the side away from the common port connector;

[0010] A low-frequency input port connector is fixedly installed on one of the ports on the left side of the cavity by fastening screws, and a low-frequency input port connecting rod is welded and fixed on the low-frequency input port connector;

[0011] A high-frequency input port connector is located on one side of the low-frequency input port connector and is fixedly installed on another set of ports on the left side of the cavity by fastening screws. A high-frequency input port connecting rod is welded and fixed on the high-frequency input port connector.

[0012] A transmission plate is disposed within the cavity, and multiple sets of plastic gaskets are provided between the transmission plate and the cavity, which are used to isolate the transmission plate from the cavity during installation.

[0013] A high-frequency port coupling plate is fixedly installed in the cavity by screws, and the high-frequency port coupling plate is connected to one end of the high-frequency input port connecting rod.

[0014] Preferably, the multiple sets of the adjustment screws are threadedly connected to the threaded holes in the cover plate.

[0015] Preferably, the cover plate has multiple sets of mounting holes, and fixing screws are provided in the mounting holes. The upper surface of the cavity has a threaded groove that matches the fixing screws. The fixing screws pass through the mounting holes and are screwed into the threaded grooves for connecting and locking the cover plate and the cavity.

[0016] Preferably, the transmission plate is provided with multiple sets of circular holes, and plastic screws are provided in the circular holes. The cavity is provided with a threaded groove adapted to the plastic lock. One end of the plastic screw passes through the circular hole and the plastic washer in sequence, and is screwed into the threaded groove in the cavity for connecting and locking the transmission plate and the cavity.

[0017] Preferably, the two ends of the transmission piece are connected to a low-frequency input port connecting rod and a common port connecting rod, respectively.

[0018] Beneficial effects

[0019] This invention provides a broadband blocking and combining circuit breaker. Compared with the prior art, it has the following advantages:

[0020] This broadband stop combiner, through its transmission plate, not only undertakes the task of transmitting the low-end broadband signal of the combiner, but also realizes the coupling function with the stopband zero cavity. A plastic gasket is placed under the transmission plate. This design can realize the transmission of zero cavity coupling and avoid the parasitic signals generated by metal-to-metal contact, which would affect the transmission and reception sensitivity of the main signal. In addition, the combination of the cavity and the cover plate forms a closed electromagnetic field transmission space, ensuring the transmission of specific frequency signals. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the cavity and connecting parts such as the transmission plate of this utility model;

[0023] Figure 3 This is a diagram showing the overall structure of this utility model.

[0024] In the diagram: 1. Common port connector; 2. Common port connecting rod; 3. Cavity; 4. Cover plate; 5. Adjustment screw; 6. Transmission plate; 7. Low-frequency input port connecting rod; 8. Low-frequency input port connector; 9. High-frequency input port connector; 10. High-frequency input port connecting rod; 11. High-frequency port coupling plate; 12. Plastic gasket. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-3 As shown:

[0027] A broadband blocking combiner includes a cavity 3;

[0028] Cover plate 4 is installed at the opening of cavity 3. Cover plate 4 has multiple sets of mounting holes and fixing screws are installed in the mounting holes. The upper surface of cavity 3 has a threaded groove that matches the fixing screws. The fixing screws pass through the mounting holes and are screwed into the threaded grooves for connecting and locking cover plate 4 and cavity 3. Cover plate 4 is also equipped with multiple sets of adjusting screws 5, which are threadedly connected to the threaded holes of cover plate 4.

[0029] The common port connector 1 is fixedly installed on the right port of the cavity 3 by fastening screws, and the common port connecting rod 2 is welded and fixed on the common port connector 1.

[0030] Two sets of ports are provided on the side of cavity 3 away from the common port connector 1;

[0031] The low-frequency input port connector 8 is fixedly installed on one of the ports on the left side of the cavity 3 by fastening screws, and the low-frequency input port connector 8 is welded and fixed with a low-frequency input port connecting rod 7.

[0032] The high-frequency input port connector 9 is located on one side of the low-frequency input port connector 8 and is fixedly installed on another set of ports on the left side of the cavity 3 by fastening screws. The high-frequency input port connector 9 is welded and fixed with a high-frequency input port connecting rod 10.

[0033] The transmission plate 6 is disposed inside the cavity 3. Multiple sets of plastic washers 12 are provided between the transmission plate 6 and the cavity 3. The plastic washers 12 are used to isolate the transmission plate 6 and the cavity 3 during installation. The transmission plate 6 is provided with multiple sets of circular holes, and plastic screws are placed in the circular holes. The cavity 3 has a threaded groove adapted to the plastic lock. One end of the plastic screw passes through the circular hole and the plastic washer 12 in sequence and is screwed into the threaded groove in the cavity 3 to lock the connection between the transmission plate 6 and the cavity 3. The two ends of the transmission plate 6 are connected to the low frequency input port connecting rod 7 and the common port connecting rod 2, respectively.

[0034] The high-frequency port coupling plate 11 is fixedly installed in the cavity 3 by screws, and the high-frequency port coupling plate 11 is connected to one end of the high-frequency input port connecting rod 10.

[0035] In this implementation scheme: When using the broadband blocking combiner, firstly, a plastic washer 12 is placed in the threaded groove at the predetermined installation position of the transmission piece 6 in the cavity 3. Then, the transmission piece 6 is placed on these multiple sets of plastic washers 12. Next, one end of a plastic screw (not shown in the figure) is passed through the circular hole and the plastic washer 12 in sequence, and the screw is screwed into the threaded groove of the cavity 3 to achieve the connection and locking of the transmission piece 6 and the cavity 3. At the same time, the two ends of the transmission piece 6 are connected to the low-frequency input port connecting rod 7 and the common port connecting rod 2 respectively.

[0036] Subsequently, the common port connector 1 is used to guide the common port connecting rod 2 and is installed at the right port of the cavity 3 by fastening screws. At the same time, the low frequency input port connector 8 and the high frequency input port connector 9 each carry the low frequency input port connecting rod 7 and the high frequency input port connecting rod 10, and are respectively installed on the two sets of ports on the left side of the cavity 3. The high frequency port coupling piece 11 is fixed inside the cavity 3 by screws and connected to the high frequency input port connecting rod 10.

[0037] Continuing the installation process, use fixing screws to pass through the mounting holes and screw them into the threaded grooves so that the cover plate 4 with the adjustment screw 5 can be installed at the opening of the cavity 3. This forms a complete closed electromagnetic field space, marking the completion of the assembly of the circuit breaker.

[0038] The two ends of the transmission piece 6 are connected to the low-frequency input port connecting rod 7 and the common port connecting rod 2, respectively. In this way, signals from different ports can be mixed or distributed through the transmission piece 6 to realize the signal combining or distribution function. The installation of the common port connector 1, the low-frequency input port connector 8, and the high-frequency input port connector 9 ensures that the signals can be correctly guided to their respective ports.

[0039] The high-frequency port coupling piece 11 is fixed inside the cavity 3 by screws and connected to the high-frequency input port connecting rod 10. Its function is to provide the necessary coupling when high-frequency signals pass through, ensuring that the signal can be effectively transmitted between the ports;

[0040] The adjustment screw 5 is used to fine-tune the electromagnetic field distribution inside the cavity. By adjusting the screw 5, the coupling degree between the transmission piece 6 and the cavity 3 can be changed, thereby affecting the frequency and coupling. This fine-tuning function enables the combiner to meet specific spectral response and specification requirements.

[0041] In this design, the transmission piece 6 not only handles the transmission of the low-end broadband signal of the combiner but also achieves coupling with the stopband zero-cavity. A plastic washer 12 is placed beneath the transmission piece 6. This design enables zero-cavity coupled transmission while avoiding parasitic signals generated by metal-to-metal contact, which could affect the transmission and reception sensitivity of the main signal. Furthermore, the combination of cavity 3 and cover plate 4 forms a closed electromagnetic field transmission space, ensuring the transmission of signals at specific frequencies. Fine-tuning using the adjusting screw 5 allows for precise control of the frequency and coupling to meet the required spectral response and specifications.

[0042] It should be noted that a plastic gasket 12 is also provided at the bottom of the high-frequency port coupling plate 11.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wideband bandstop hybrid, characterized by: Including cavity (3); A cover plate (4) is installed at the opening of the cavity (3), and multiple sets of adjustment screws (5) are installed on the cover plate (4); A common port connector (1) is fixedly installed on the right port of the cavity (3) by fastening screws, and a common port connecting rod (2) is welded and fixed on the common port connector (1); The cavity (3) has two sets of ports on the side away from the common port connector (1); The low-frequency input port connector (8) is fixedly installed on one of the ports on the left side of the cavity (3) by fastening screws, and a low-frequency input port connecting rod (7) is welded and fixed on the low-frequency input port connector (8); A high-frequency input port connector (9) is located on one side of the low-frequency input port connector (8) and is fixedly installed on another set of ports on the left side of the cavity (3) by fastening screws. A high-frequency input port connecting rod (10) is welded and fixed on the high-frequency input port connector (9). A transmission plate (6) is disposed inside the cavity (3). Multiple sets of plastic gaskets (12) are provided between the transmission plate (6) and the cavity (3). The plastic gaskets (12) are used to isolate the transmission plate (6) and the cavity (3) during installation. The high-frequency port coupling plate (11) is fixedly installed in the cavity (3) by screws, and the high-frequency port coupling plate (11) is connected to one end of the high-frequency input port connecting rod (10).

2. The wideband bandstop hybrid of claim 1, wherein: The multiple sets of adjustment screws (5) are threadedly connected to the threaded holes in the cover plate (4).

3. The wideband bandstop hybrid of claim 1, wherein: The cover plate (4) has multiple sets of mounting holes, and fixing screws are provided in the mounting holes. The upper surface of the cavity (3) has a threaded groove that matches the fixing screws. The fixing screws pass through the mounting holes and are screwed into the threaded grooves for connecting and locking the cover plate (4) and the cavity (3).

4. The wideband bandstop hybrid of claim 1, wherein: The transmission plate (6) is provided with multiple sets of circular holes, and plastic screws are provided in the circular holes. The cavity (3) has a threaded groove adapted to the plastic lock. One end of the plastic screw passes through the circular hole and the plastic washer (12) in sequence, and is screwed into the threaded groove of the cavity (3) for connecting and locking the transmission plate (6) and the cavity (3).

5. The wideband bandstop hybrid of claim 1, wherein: The two ends of the transmission plate (6) are connected to the low-frequency input port connecting rod (7) and the common port connecting rod (2), respectively.

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