High-pass and low-pass duplexer with pure copper sheet structure

Abstract

The invention discloses a high-pass and low-pass duplexer with a pure copper sheet structure, and belongs to the field of filters. A high-pass and low-pass duplexer with a pure copper sheet structure comprises a shell and a cavity arranged on the shell and further comprises a common end input connector, a low end output connector and a high end output connector which are all arranged on the outer wall of the shell. The common end input connector, the low end output connector and the high end output connector are connected with an input core rod, a low end output core rod and a high end output core rod respectively. The high-low pass copper sheet is arranged in the cavity, and the input core rod, the low-end output core rod and the high-end output core rod are arranged at one end in the cavity and correspond to the high-low pass copper sheet; according to the broadband combiner, the defect that strong coupling is difficult to achieve in the design of the broadband combiner is overcome, a wide passband can be achieved, product indexes are relatively easy to control, tuning is avoided, the size is small, and consistency is high; and the processing consistency and the cost are relatively low, and the control is easy.

Description

Technical Field

[0001] The invention relates to the technical field of filters, and in particular to a high-pass and low-pass duplexer with a pure copper sheet structure. Background Art

[0002] A duplexer is an electronic component used for signal processing and frequency selection, mainly used in walkie-talkies, satellite communications, etc.; its characteristic is that it can send and receive at the same time to improve spectrum efficiency; compared with filters, duplexers pay more attention to signal separation and merging, while filters focus on signal frequency selection and processing.

[0003] A combiner is a passive device used to combine multiple signals into a single signal output. In the design of broadband combiners, due to the wide passband, coupling is difficult to achieve if conventional design ports are used, which can easily lead to mutual interference between signals in different frequency bands, affecting communication quality, and may cause signal loss during transmission, reducing signal strength. This design changes the conventional cavity filter solution to a copper sheet high-pass filter plus a copper sheet low-pass filter and integrates them into one, making it easy to use and easy to control. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a pure copper sheet structure high-pass and low-pass duplexer.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A pure copper sheet structure high-pass and low-pass duplexer, comprising a housing and a cavity arranged on the housing, and further comprising: The common-end input connector, the low-end output connector and the high-end output connector are all arranged on the outer wall of the shell, and the common-end input connector, the low-end output connector and the high-end output connector are respectively connected with an input core rod, a low-end output core rod and a high-end output core rod; A high-low pass copper sheet is arranged in the cavity, and one end of the input core rod, the low-end output core rod and the high-end output core rod placed in the cavity corresponds to the high-low pass copper sheet; A first groove and a second groove are arranged on the left side of the high-low pass copper sheet, and an extended copper sheet is arranged on the right side of the high-low pass copper sheet.

[0006] Preferably, the common-end input connector and the high-end output connector are arranged on the same side of the shell, the low-end output connector is arranged on an outer wall of the shell away from the common-end input connector, and the common-end input connector and the low-end output connector are located on the same plane.

[0007] Furthermore, an input fixing plate is provided on the common-end input connector, an input fixing screw is connected to the input fixing plate, and the input fixing screw passes through the input fixing plate and is threadably connected to the housing.

[0008] Furthermore, the low-end output connector is provided with a low-end output fixing plate, the low-end output fixing plate is provided with a low-end output fixing screw, and the low-end output fixing screw passes through one end of the low-end output fixing plate and is threadedly connected to the housing.

[0009] Furthermore, the high-end output connector is provided with a high-end output fixing plate, the high-end output fixing plate is connected with a high-end output fixing screw, and the high-end output fixing screw passes through one end of the high-end output fixing plate and is threadedly connected to the housing.

[0010] Preferably, the high-low pass copper sheet is provided with a first welding groove, a second welding groove and a third welding groove, the first welding groove, the second welding groove and the third welding groove are respectively arranged at the three corners of the high-low pass copper sheet, and one end of the common end input connector, the low-end output connector and the high-end output connector placed in the cavity are respectively plugged into the first welding groove, the second welding groove and the third welding groove.

[0011] Furthermore, a cover plate is connected to the shell, a mounting hole is provided on the shell, a locking screw is connected in the mounting hole, and the cover plate is fixedly connected to the shell by the locking screw.

[0012] Furthermore, it also includes a first vertical plate, a second vertical plate, a first horizontal plate and a second horizontal plate, the high-low pass copper sheet is arranged between the first vertical plate and the second vertical plate, and the extended copper sheet on the high-low pass copper sheet is arranged between the first horizontal plate and the second horizontal plate.

[0013] Furthermore, the inner wall of the cover plate is respectively provided with a first long groove and a second long groove, the first vertical plate and the first horizontal plate are respectively placed in the first long groove and the second long groove, the inner wall of the cavity is respectively provided with a third long groove and a fourth long groove, and the second vertical plate and the second horizontal plate are respectively arranged in the third long groove and the fourth long groove.

[0014] Furthermore, the first vertical plate, the second vertical plate, the first horizontal plate and the second horizontal plate are each provided in plurality, the first groove on the high-low pass copper plate gradually decreases from the middle to both sides, and the second groove on the high-low pass copper plate gradually increases from the middle to both sides.

[0015] Compared with the prior art, the present invention provides a pure copper sheet structure high-pass and low-pass duplexer, which has the following beneficial effects: 1. The pure copper sheet structure high-pass and low-pass duplexer inputs the signal through the common input connector, and then the signal is transmitted into the cavity. The high-pass and low-pass copper sheets can be set to integrate the original copper sheet high-pass filter and the copper sheet low-pass form, which solves the problem that it is difficult to achieve strong coupling in the design of broadband combiner, and can achieve a relatively wide passband. In addition, this design is relatively easy to control product indicators, does not require tuning, has a small size, and has high consistency; the processing consistency and cost are relatively low and easy to control; the signals that have completed the filtering operation can be output separately through the low-end output connector and the high-end output connector.

[0016] 2. The pure copper sheet structure high-pass and low-pass duplexer is provided with a first welding groove, a second welding groove and a third welding groove on the three corners of the high- and low-pass copper sheets, respectively, so that the input core rod, the low-end output core rod and the high-end output core rod can be welded to the high- and low-pass copper sheets respectively. Through welding, a stable interatomic bonding force can be formed between the high- and low-pass copper sheets to ensure the mechanical strength of the joints and the stability of the electrical connection. At the same time, a low-resistance connection with the high- and low-pass copper sheets can be achieved, which helps to reduce the loss in the signal transmission process and improve the transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a pure copper sheet high-pass and low-pass duplexer proposed by the present invention Figure 1 ; Figure 2 A schematic diagram of the structure of a pure copper sheet high-pass and low-pass duplexer proposed by the present invention Figure 2 ; Figure 3 A schematic cross-sectional view of a pure copper sheet structure high-pass and low-pass duplexer according to the present invention; Figure 4 This is a schematic diagram of the structure of a pure copper sheet structure high-pass and low-pass duplexer without a cover plate proposed by the present invention; Figure 5 This is a schematic structural diagram of a housing in a pure copper sheet high-pass and low-pass duplexer proposed by the present invention; Figure 6 Schematic diagram of the structure of the high- and low-pass copper sheet in a pure copper sheet high- and low-pass duplexer proposed by the present invention Figure 1 ; Figure 7 Schematic diagram of the structure of the high- and low-pass copper sheet in a pure copper sheet high- and low-pass duplexer proposed by the present invention Figure 2 ; Figure 8 This is a schematic structural diagram of a cover plate in a pure copper sheet high-pass and low-pass duplexer proposed by the present invention.

[0018] In the figure: 1, shell; 101, cover plate; 102, locking screw; 103, cavity; 104, mounting hole; 105, first long slot; 106, second long slot; 107, third long slot; 108, fourth long slot; 2, common input connector; 201, input fixing plate; 202, input fixing screw; 203, input core rod; 3, low-end output connector; 301, low-end output fixing plate; 302, low-end output fixing screw; 303, Low-end output core rod; 4. High-end output connector; 401. High-end output fixing plate; 402. High-end output fixing screw; 403. High-end output core rod; 5. High-low pass copper sheet; 501. First welding groove; 502. Second welding groove; 503. Third welding groove; 504. First vertical plate; 505. Second vertical plate; 506. First horizontal plate; 507. Second horizontal plate; 508. First groove; 509. Second groove; 510. Extended copper sheet. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example

[0021] Reference Figure 1-Figure 8 A pure copper sheet structure high-pass and low-pass duplexer comprises a shell 1 and a cavity 103 arranged on the shell 1, and also comprises: a common end input connector 2, a low-end output connector 3 and a high-end output connector 4, all of which are arranged on the outer wall of the shell 1, and the common end input connector 2, the low-end output connector 3 and the high-end output connector 4 are respectively connected with an input core rod 203, a low-end output core rod 303 and a high-end output core rod 403; a high-low pass copper sheet 5 is arranged in the cavity 103, and one end of the input core rod 203, the low-end output core rod 303 and the high-end output core rod 403 placed in the cavity 103 corresponds to the high-low pass copper sheet 5; a first groove 508 and a second groove 509 are arranged on the left side of the high-low pass copper sheet 5, and an extended copper sheet 510 is arranged on the right side of the high-low pass copper sheet 5.

[0022] In this embodiment, when in use, a signal is input through the common input connector 2, and then the signal is transmitted into the cavity 103. The high-pass and low-pass copper sheets 5 are provided to integrate the high-pass filter in the form of the copper sheet and the low-pass form of the copper sheet, thereby solving the problem that it is difficult to achieve strong coupling in the design of a broadband combiner, and a relatively wide passband can be achieved. In addition, the design is relatively easy to control product indicators, does not require tuning, has a small size, and has high consistency; the processing consistency and cost are relatively low, and it is easy to control; the signals that have completed the filtering operation can be output separately through the low-end output connector 3 and the high-end output connector 4, and both the low-end output connector 3 and the high-end output connector 4 are used to output the combined signal; the difference is that they process different signal frequency bands or powers, which depends on the design and application requirements of the combiner.

[0023] It should be noted that the left side of the high- and low-pass copper sheet 5 is a high-pass filter, which is also called a low-cutoff filter or a low-resistance filter. It is a filter that allows frequencies higher than a certain cutoff frequency to pass through, while greatly attenuating lower frequencies; it removes unnecessary low-frequency components in the signal or removes low-frequency interference; the right side of the high- and low-pass copper sheet 5 is a low-pass filter, which is an electronic filtering device that allows signals below the cutoff frequency to pass through, but prevents signals above the cutoff frequency from passing through. The combined high- and low-pass copper sheet 5 can achieve a strong coupling effect and a wider passband. Example

[0024] Reference Figure 1-Figure 8 A pure copper sheet structure high-pass and low-pass duplexer, comprising a shell 1 and a cavity 103 arranged on the shell 1, and also comprising: a common end input connector 2, a low-end output connector 3 and a high-end output connector 4, all of which are arranged on the outer wall of the shell 1, and the common end input connector 2, the low-end output connector 3 and the high-end output connector 4 are respectively connected with an input core rod 203, a low-end output core rod 303 and a high-end output core rod 403; a high-low pass copper sheet 5 is arranged in the cavity 103, and the input core rod 203, the low-end output core rod 30 3 and one end of the high-end output core rod 403 placed in the cavity 103 corresponds to the high-low pass copper sheet 5; a first groove 508 and a second groove 509 are provided on the left side of the high-low pass copper sheet 5, and an extended copper sheet 510 is provided on the right side of the high-low pass copper sheet 5; further, the common-end input connector 2 and the high-end output connector 4 are arranged on the same side of the shell 1, and the low-end output connector 3 is arranged on the outer wall of the shell 1 away from the common-end input connector 2, and the common-end input connector 2 and the low-end output connector 3 are located on the same plane.

[0025] An input fixing plate 201 is provided on the common-end input connector 2 , and an input fixing screw 202 is connected to the input fixing plate 201 . The input fixing screw 202 passes through the input fixing plate 201 and is threadedly connected to the housing 1 .

[0026] The low-end output connector 3 is provided with a low-end output fixing plate 301 , and the low-end output fixing plate 301 is provided with a low-end output fixing screw 302 . The low-end output fixing screw 302 passes through one end of the low-end output fixing plate 301 and is threadedly connected to the housing 1 .

[0027] The high-end output connector 4 is provided with a high-end output fixing plate 401 , and the high-end output fixing plate 401 is connected with a high-end output fixing screw 402 , and the high-end output fixing screw 402 passes through one end of the high-end output fixing plate 401 and is threadedly connected to the housing 1 .

[0028] In this embodiment, before use, the input fixing plate 201 is firstly fitted with the outer wall of the shell 1, and then the common-end input connector 2 is fixedly connected to the shell 1 by the input fixing screws 202. Similarly, the low-end output fixing plate 301 is fitted and placed on the outer wall of the shell 1 and fixed by the low-end output fixing screws 302, so that the low-end output connector 3 can be fixed. The high-end output fixing plate 401 is abutted against the outer wall of the shell 1, and then fixed by the high-end output fixing screws 402, so that the high-end output fixing plate 401 and the high-end output connector 4 are fixed. It should be noted that the common-end input connector 2 and the high-end output connector 4 are arranged on the same side of the shell 1, and the common-end input connector 2 and the low-end output connector 3 are located on the same plane. After the common-end input connector 2 inputs a signal, it can be discharged from the low-end output connector 3 on the same plane after passing through the high-low pass copper sheet 5. Secondly, the signal will also move upward, so as to be discharged from the high-end output connector 4 through the high-low pass copper sheet 5, which is convenient for use. Example

[0029] Reference Figure 1-Figure 8 A pure copper sheet structure high-pass and low-pass duplexer comprises a shell 1 and a cavity 103 arranged on the shell 1, and also comprises: a common end input connector 2, a low-end output connector 3 and a high-end output connector 4, all of which are arranged on the outer wall of the shell 1, and the common end input connector 2, the low-end output connector 3 and the high-end output connector 4 are respectively connected with an input core rod 203, a low-end output core rod 303 and a high-end output core rod 403; a high-low pass copper sheet 5 is arranged in the cavity 103, and one end of the input core rod 203, the low-end output core rod 303 and the high-end output core rod 403 placed in the cavity 103 corresponds to the high-low pass copper sheet 5; a first groove 508 and a second groove 509 are arranged on the left side of the high-low pass copper sheet 5, and an extended copper sheet 510 is arranged on the right side of the high-low pass copper sheet 5.

[0030] A first welding groove 501, a second welding groove 502 and a third welding groove 503 are provided on the high-low pass copper sheet 5, and the first welding groove 501, the second welding groove 502 and the third welding groove 503 are respectively arranged at the three corners of the high-low pass copper sheet 5, and one end of the common end input connector 2, the low end output connector 3 and the high end output connector 4 placed in the cavity 103 are respectively plugged into the first welding groove 501, the second welding groove 502 and the third welding groove 503.

[0031] In this embodiment, a first welding groove 501, a second welding groove 502 and a third welding groove 503 are respectively provided on the high-low pass copper sheet 5, which are respectively connected to the input core rod 203, the low-end output core rod 303 and the high-end output core rod 403, so that the input core rod 203, the low-end output core rod 303 and the high-end output core rod 403 can be welded to the high-low pass copper sheet 5 respectively. Through welding, a stable interatomic bonding force can be formed between them and the high-low pass copper sheet 5, ensuring the mechanical strength of the joint and the stability of the electrical connection. At the same time, a low-resistance connection with the high-low pass copper sheet 5 can be achieved, which helps to reduce the loss during signal transmission and improve the transmission efficiency.

[0032] The housing 1 is connected with a cover plate 101 . The housing 1 is provided with a mounting hole 104 . A locking screw 102 is connected in the mounting hole 104 . The cover plate 101 is fixedly connected to the housing 1 through the locking screw 102 .

[0033] The cavity 103 can be sealed by the cover plate 101 , which is more convenient for transmitting internal signals and improves stability. The cover plate 101 can be fixed by threading the locking screw 102 into the mounting hole 104 .

[0034] It also includes a first vertical plate 504, a second vertical plate 505, a first horizontal plate 506 and a second horizontal plate 507. The high-low pass copper plate 5 is arranged between the first vertical plate 504 and the second vertical plate 505, and the extended copper plate 510 on the high-low pass copper plate 5 is arranged between the first horizontal plate 506 and the second horizontal plate 507.

[0035] The inner wall of the cover plate 101 is respectively provided with a first long groove 105 and a second long groove 106, the first vertical plate 504 and the first horizontal plate 506 are respectively placed in the first long groove 105 and the second long groove 106, the inner wall of the cavity 103 is provided with a third long groove 107 and a fourth long groove 108, the second vertical plate 505 and the second horizontal plate 507 are respectively arranged in the third long groove 107 and the fourth long groove 108.

[0036] There are multiple first vertical plates 504, second vertical plates 505, first horizontal plates 506 and second horizontal plates 507. The first grooves 508 on the high-low pass copper plate 5 gradually shrink from the middle to both sides, and the second grooves 509 on the high-low pass copper plate 5 gradually increase from the middle to both sides.

[0037] In this embodiment, the high-low pass copper sheet 5 can be clamped by the first vertical plate 504, the second vertical plate 505, the first horizontal plate 506 and the second horizontal plate 507, so that the connection is more stable. The first long groove 105, the second long groove 106, the third long groove 107 and the fourth long groove 108 can make the installation of the first vertical plate 504, the second vertical plate 505, the first horizontal plate 506 and the second horizontal plate 507 more stable, avoiding sliding or displacement affecting use. The first groove 508 and the second groove 509 can improve the high-low pass copper sheet 5 The heat dissipation area is increased to improve the heat dissipation efficiency. The different lengths of the multiple first grooves 508 and the second grooves 509 are used to adjust the signal transmission characteristics in the combiner, such as impedance matching and frequency response, so that it can maintain a good working state in different frequency bands or under different working conditions. The extended copper sheet 510 is set to optimize the heat dissipation path to ensure that the heat can be dispersed and conducted more effectively. In this application, the conventional cavity filter scheme is changed to a high- and low-pass copper sheet 5, which is tuning-free, small in size, and highly consistent. The processing consistency and cost are low, and it is easy to control.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pure copper sheet structure high-pass and low-pass duplexer, comprising a housing (1) and a cavity (103) arranged on the housing (1), characterized in that: Also includes: The common-end input connector (2), the low-end output connector (3) and the high-end output connector (4) are all arranged on the outer wall of the housing (1), and the common-end input connector (2), the low-end output connector (3) and the high-end output connector (4) are respectively connected to an input core rod (203), a low-end output core rod (303) and a high-end output core rod (403); A high-low pass copper sheet (5) is arranged in the cavity (103), and one end of the input core rod (203), the low-end output core rod (303) and the high-end output core rod (403) placed in the cavity (103) corresponds to the high-low pass copper sheet (5); A first groove (508) and a second groove (509) are provided on the left side of the high-low pass copper sheet (5), and an extended copper sheet (510) is provided on the right side of the high-low pass copper sheet (5).

2. A pure copper sheet structure high-pass and low-pass duplexer according to claim 1, characterized in that: The common-end input connector (2) and the high-end output connector (4) are arranged on the same side of the housing (1), the low-end output connector (3) is arranged on an outer wall of the housing (1) away from the common-end input connector (2), and the common-end input connector (2) and the low-end output connector (3) are located on the same plane.

3. The pure copper sheet structure high-pass and low-pass duplexer according to claim 2, characterized in that: An input fixing plate (201) is provided on the common end input connector (2), an input fixing screw (202) is connected to the input fixing plate (201), and the input fixing screw (202) passes through the input fixing plate (201) and is threadedly connected to the housing (1).

4. The pure copper sheet structure high-pass and low-pass duplexer according to claim 3, characterized in that: The low-end output connector (3) is provided with a low-end output fixing plate (301), the low-end output fixing plate (301) is provided with a low-end output fixing screw (302), and the low-end output fixing screw (302) passes through one end of the low-end output fixing plate (301) and is threadedly connected to the housing (1).

5. The pure copper sheet structure high-pass and low-pass duplexer according to claim 4, characterized in that: The high-end output connector (4) is provided with a high-end output fixing plate (401), the high-end output fixing plate (401) is connected with a high-end output fixing screw (402), and the high-end output fixing screw (402) passes through one end of the high-end output fixing plate (401) and is threadedly connected to the housing (1).

6. The pure copper sheet structure high-pass and low-pass duplexer according to claim 1, characterized in that: The high-low pass copper sheet (5) is provided with a first welding groove (501), a second welding groove (502) and a third welding groove (503); the first welding groove (501), the second welding groove (502) and the third welding groove (503) are respectively arranged at three corners of the high-low pass copper sheet (5); and one end of the common end input connector (2), the low end output connector (3) and the high end output connector (4) placed in the cavity (103) is respectively plugged into the first welding groove (501), the second welding groove (502) and the third welding groove (503).

7. The pure copper sheet structure high-pass and low-pass duplexer according to claim 6, characterized in that: The shell (1) is connected to a cover plate (101), the shell (1) is provided with a mounting hole (104), a locking screw (102) is connected in the mounting hole (104), and the cover plate (101) is fixedly connected to the shell (1) via the locking screw (102).

8. The pure copper sheet structure high-pass and low-pass duplexer according to claim 7, characterized in that: It also comprises a first vertical plate (504), a second vertical plate (505), a first horizontal plate (506) and a second horizontal plate (507), wherein the high-low pass copper sheet (5) is arranged between the first vertical plate (504) and the second vertical plate (505), and the extended copper sheet (510) on the high-low pass copper sheet (5) is arranged between the first horizontal plate (506) and the second horizontal plate (507).

9. The pure copper sheet structure high-pass and low-pass duplexer according to claim 8, characterized in that: The inner wall of the cover plate (101) is provided with a first long groove (105) and a second long groove (106), respectively; the first vertical plate (504) and the first horizontal plate (506) are respectively arranged in the first long groove (105) and the second long groove (106); the inner wall of the cavity (103) is provided with a third long groove (107) and a fourth long groove (108), respectively; the second vertical plate (505) and the second horizontal plate (507) are respectively arranged in the third long groove (107) and the fourth long groove (108).

10. The pure copper sheet structure high-pass and low-pass duplexer according to claim 9, characterized in that: The first vertical plate (504), the second vertical plate (505), the first horizontal plate (506) and the second horizontal plate (507) are each provided in plurality; the first groove (508) on the high-low pass copper plate (5) gradually decreases from the middle to both sides; and the second groove (509) on the high-low pass copper plate (5) gradually increases from the middle to both sides.

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