Miniaturized Filter Debugging Tooling and Its Debugging Method

Abstract

The present invention provides a miniaturized filter debugging tool and a debugging method thereof. The present invention continuously pushes and feeds the debugging area on the debugging cover plate inward through a debugging mechanism to change the distance from the deformable position of the debugging area on the debugging cover plate to the filter resonant plate, thereby changing its capacitance value and achieving the purpose of debugging; at the same time, multiple debugging needles in the debugging mechanism are jointly installed on the debugging base, and the side walls of the debugging needles are threadedly connected to the debugging base. The feeding size is controlled by rotating the thread, so that the feeding amount of the debugging needles can be accurately controlled; moreover, the tail of the debugging needle has a rotating drive component for driving its automatic rotation. During the rotation of the debugging needle, its head can be fed inward along the axis of the debugging point, and with the assistance of a network analysis data meter, the purpose of automatic debugging can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of filter auxiliary debugging equipment, and in particular relates to a miniaturized filter debugging tool and a debugging method thereof. Background Art

[0002] A filter is a typical frequency-selective device that effectively suppresses unwanted signals, preventing them from passing through the filter while allowing only useful signals to pass smoothly. Therefore, the performance of the filter directly impacts the quality of the entire communication system, making it a crucial component in modern microwave and millimeter-wave communication systems. Cavity filters are a very important type of filter. Compared to other types of filters, they offer a robust structure, stable and reliable performance, a compact size, a moderate Q factor, a long high-end parasitic passband, and excellent heat dissipation, allowing them to be used at higher powers and frequencies. Cavity filters are highly sensitive to mechanical tolerances, so without individual performance testing and adjustments during the final assembly process, they will not meet the designed electrical specifications.

[0003] Currently, traditional filter debugging involves adjusting the depth of the screws at various points in the filter's debugging area. Network analyzers provide feedback on the debugging results, and software determines the direction and extent of the required adjustments. This process is then iterated repeatedly. Typically, a single filter has around ten screws, and manual or mechanical debugging takes a long time, consuming a significant portion of production costs. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a miniaturized filter debugging tool and a debugging method thereof that can realize automatic debugging of the filter, thereby shortening the debugging time and reducing production costs.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: a miniaturized filter debugging tool, comprising:

[0006] A metal base for placing a miniaturized filter. The miniaturized filter has a plurality of debugging points on its debugging cover. Each debugging point has a debugging area that can be continuously fed into the interior of the cavity under the action of external force.

[0007] A fixing mechanism for fixing the miniaturized filter after it is placed on the metal base;

[0008] The debugging mechanism includes at least one debugging unit provided on the outside of the debugging cover of the miniaturized filter. The debugging unit has a plurality of debugging rotating pins provided in a one-to-one correspondence with the debugging points. The debugging rotating pins can be fed inward along the axis of the debugging points and can push the debugging area to continuously feed inward during the inward feeding process to achieve the performance debugging of the miniaturized filter.

[0009] The network analysis data meter is connected to the input and output ports of the miniaturized filter through data lines and is used to feed back debugging results.

[0010] Furthermore, a plurality of debugging needles are installed on the debugging base together, the side walls of the debugging needles are threadedly connected to the debugging base, and the tail of the debugging needle has a rotation drive assembly for driving the automatic rotation thereof.

[0011] Furthermore, the head of the debugging needle is a conical structure facing the debugging area. During the rotation of the debugging needle, the head can be fed inward along the axis of the debugging point.

[0012] Furthermore, two debugging mechanisms are provided, and the two debugging mechanisms are symmetrically arranged on the outsides of the two debugging covers of the miniaturized filter.

[0013] Furthermore, the debugging base is fixedly connected to the top of the metal base.

[0014] Furthermore, the metal base has metal feeding points corresponding to the input port and the output port, and the data lines of the network analyzer are connected to the corresponding metal feeding points respectively.

[0015] Furthermore, the data lines of the network analyzer are respectively connected to a connector, the center pin of the connector passes through the metal base and is crimped to the metal feeding point, and the cavity of the filter is connected to the connector ground through the metal base.

[0016] Furthermore, the fixing mechanism includes a pressing block and a lifting mechanism for driving the pressing block to move up and down in a vertical direction.

[0017] Furthermore, the lifting mechanism is a cylinder.

[0018] The debugging method of the miniaturized filter debugging tool of the present invention comprises the following steps:

[0019] Step 1: Place the miniaturized filter on a metal base, and connect its input and output ports to corresponding metal feeding points;

[0020] Step 2: Using the lifting mechanism to drive the pressing block to press down the miniaturized filter to fix the miniaturized filter;

[0021] Step 3: Connect the data cables of the network analyzer to a connector. The center pin of the connector passes through the metal base and is crimped to the metal feed point.

[0022] Step 4: Drive the corresponding debugging needle to rotate. Its head can feed inward along the axis of the debugging point, and during the inward feeding process, it can push the debugging area to continue feeding inward. At the same time, the debugging results are fed back through the network analysis data meter, and the debugging is completed through repeated iterations.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention uses a debugging mechanism to continuously push and feed the debugging area on the debugging cover inward, thereby changing the distance between the deformable position of the debugging area on the debugging cover and the filter resonant plate, thereby changing its capacitance value and achieving the purpose of debugging. At the same time, multiple debugging needles in the debugging mechanism are jointly mounted on the debugging base, and the side walls of the debugging needles are threadedly connected to the debugging base. The feeding size is controlled by rotating the threads, which can achieve precise control of the feeding amount of the debugging needles. In addition, the tail of the debugging needle has a rotary drive assembly for driving its automatic rotation. During the rotation of the debugging needle, its head can be fed inward along the axis of the debugging point. Assisted by a network analyzer data meter, the purpose of automatic debugging can be achieved.

[0025] 2. When debugging or testing a miniaturized filter, the metal feed point of the filter is directly crimped to the center pin of the connector. At the same time, the cavity of the filter is connected to the connector ground through the metal base, so that the network analyzer can accurately display the electrical performance indicators. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the miniaturized filter debugging tool of the present invention;

[0027] Figure 2 This is a schematic diagram of the present invention after the miniaturized filter is placed on a metal base and fixed;

[0028] Figure 3 This is a schematic diagram of the coordination between the debugging needle and the debugging area during the debugging process;

[0029] Figure 4 It is a cross-sectional view of the miniaturized filter debugging tool of the present invention;

[0030] Figure 5 yes Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0031] Figure 6 It is a schematic diagram of the structure of the miniaturized filter;

[0032] Markings in the figure: 1. Metal base, 101. Metal feeding point, 2. Miniaturized filter, 201. Debugging area, 202. Debugging cover, 203. Cavity, 204. Resonant plate, 3. Press block, 4. Cylinder, 5. Debugging unit, 501. Debugging needle, 502. Debugging base, 503. Rotary drive assembly, 504. Conical structure, 6. Data cable of network analyzer, 7. Connector, 701. Center pin. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Miniaturized filter debugging tooling, such as Figure 1 and Figure 4 As shown, it includes a metal base 1, a fixing mechanism, a debugging mechanism and a network analysis data meter;

[0035] The metal base 1 is used to place the miniaturized filter 2, such as Figure 6 As shown, the debugging cover 202 of the miniaturized filter has multiple debugging points, each of which has a debugging area 201 that can be continuously fed into the interior of the cavity under the action of external force. The debugging cover 202 is made of a metal plate with a relatively low yield strength.

[0036] The debugging area is a special-shaped structure formed by directly opening a through groove running through the debugging cover 202 from top to bottom. The special-shaped structure includes a head and a waist. The shape of the head includes but is not limited to a circle, a polygon and an ellipse, and the waist is a long strip.

[0037] The fixing mechanism is used to fix the miniaturized filter 2 after it is placed on the metal base 1. In this embodiment, the fixing mechanism includes a pressure block 3 and a lifting mechanism for driving the pressure block to rise and fall in the vertical direction. The outer side of the pressure block 3 is covered with a rubber sleeve. The lifting mechanism is preferably a cylinder 4. The state diagram of the miniaturized filter after it is placed on the metal base and fixed is shown in the figure below. Figure 2 shown.

[0038] The debugging mechanism includes at least one debugging unit 5 arranged on the outside of the debugging cover 202 of the miniaturized filter. In this embodiment, there are two debugging mechanisms, and the two debugging mechanisms are symmetrically arranged on the outside of the two debugging covers 202 of the miniaturized filter. The debugging unit has a plurality of debugging needles 501 arranged in a one-to-one correspondence with the debugging points. The debugging needles can be fed inward along the axis of the debugging points, and during the inward feeding process, they can push the debugging area 201 to continuously feed inward to debug the performance of the miniaturized filter. The schematic diagram of the coordination between the debugging needles 501 and the debugging area 201 during the debugging process is shown in FIG. Figure 3 shown.

[0039] Multiple adjustment pins 501 are mounted on a adjustment base 502, which is fixedly connected to the top of the metal base 1. The sidewalls of the adjustment pins 501 are threadedly connected to the adjustment base. The threaded connection controls the feed size, enabling precise control of the adjustment pin feed rate. The tail of the adjustment pin has a rotary drive assembly for automatic rotation. To achieve optimal performance, the head of the adjustment pin 501 has a tapered structure 504 facing the adjustment area. During rotation, the head of the adjustment pin 501 can feed inward along the axis of the adjustment point.

[0040] The network analysis data meter is connected to the input and output ports of the miniaturized filter through data lines 6 for feeding back debugging results.

[0041] like Figure 5 As shown, the metal base has metal feeding points 101 corresponding to the input port and the output port, and the data lines 6 of the network analyzer are respectively connected to the corresponding metal feeding points 101. The specific connection method is as follows: the data lines of the network analyzer are respectively connected to a connector 7, and the center pin 701 of the connector 7 passes through the metal base 1 and is crimped to the metal feeding point 101, and the cavity 203 of the filter is connected to the connector ground through the metal base 1. When debugging or testing traditional miniaturized filters, since the spacing between the corresponding input and output ports is too small, the usual design is to lead out the microstrip line and the connector through the metal feeding point on the PCB board, and the connector is then connected to the network analyzer. However, passing through the PCB board will cause the performance loss to increase, and the data is not completely true. When debugging or testing the miniaturized filter of the present invention, the metal feeding point of the filter is directly crimped to the center pin of the connector. At the same time, the cavity of the filter is connected to the connector ground through the metal base, so that the network analyzer can accurately display the electrical performance indicators.

[0042] The debugging method of the miniaturized filter debugging tool of the present invention comprises the following steps:

[0043] Step 1: Place the miniaturized filter 2 on the metal base 1, and connect its input and output ports to the corresponding metal feeding points 101;

[0044] Step 2: The lifting mechanism drives the pressing block 3 to press down the miniaturized filter 2 to fix the miniaturized filter 2;

[0045] Step 3: Connect the data cables 6 of the network analyzer to a connector 7 respectively. The center pin 701 of the connector passes through the metal base 1 and is then crimped to the metal feed point 101.

[0046] Step 4: Drive the corresponding debugging 501 needle to rotate. Its head can feed inward along the axis of the debugging point, and in the process of feeding inward, it can push the debugging area 201 to feed inward continuously. At the same time, the debugging results are fed back through the network analysis data meter, and the debugging is completed through repeated iterations.

[0047] The present invention continuously pushes and feeds the debugging area 201 on the debugging cover 202 inward through the debugging mechanism to change the distance from the deformable position of the debugging area on the debugging cover 202 to the filter resonant plate 204, thereby changing its capacitance value and achieving the purpose of debugging; at the same time, multiple debugging needles 501 in the debugging mechanism are jointly installed on the debugging base 502, and the side wall of the debugging needle 201 is threadedly connected to the debugging base 502. The feeding size is controlled by rotating the thread, so that the feeding amount of the debugging needle can be accurately controlled; moreover, the tail of the debugging needle 501 has a rotating drive component 503 for driving it to rotate automatically. During the rotation of the debugging needle, its head can be fed inward along the axis of the debugging point, and with the assistance of a network analyzer, the purpose of automatic debugging can be achieved.

[0048] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Miniaturized filter debugging tool, characterized by: include: A metal base for placing a miniaturized filter. The miniaturized filter has a plurality of debugging points on its debugging cover. Each debugging point has a debugging area that can be continuously fed into the interior of the cavity under the action of external force. A fixing mechanism is used to fix the miniaturized filter after it is placed on the metal base. The fixing mechanism includes a pressing block and a lifting mechanism for driving the pressing block to rise and fall in the vertical direction. The outer side of the pressing block is covered with a rubber sleeve, and the lifting mechanism is a cylinder. The debugging mechanism includes at least one debugging unit disposed on the outside of the debugging cover of the miniaturized filter. The debugging unit has a plurality of debugging rotating pins disposed in a one-to-one correspondence with the debugging points. The plurality of debugging rotating pins are mounted on a debugging base. The side walls of the debugging rotating pins are threadedly connected to the debugging base. The debugging rotating pins can be fed inwardly along the axis of the debugging point and can push the debugging area to continuously feed inward during the inward feeding process, thereby debugging the performance of the miniaturized filter. The network analysis data meter is connected to the input and output ports of the miniaturized filter through data lines and is used to feed back debugging results.

2. The miniaturized filter debugging tool according to claim 1, characterized in that: The tail of the debugging needle is provided with a rotation drive assembly for driving the automatic rotation thereof.

3. The miniaturized filter debugging tool according to claim 2, characterized in that: The head of the debugging needle is a conical structure facing the debugging area. During the rotation of the debugging needle, the head can be fed inward along the axis of the debugging point.

4. The miniaturized filter debugging tool according to claim 3, characterized in that: There are two debugging mechanisms, and the two debugging mechanisms are symmetrically arranged on the outsides of the two debugging covers of the miniaturized filter.

5. The miniaturized filter debugging tool according to claim 4, characterized in that: The debugging base is fixedly connected to the top of the metal base.

6. The miniaturized filter debugging tool according to claim 1, characterized in that: The metal base is provided with metal feeding points corresponding to the input port and the output port, and the data lines of the network analyzer are connected to the corresponding metal feeding points respectively.

7. The miniaturized filter debugging tool according to claim 6, characterized in that: The data lines of the network analyzer are respectively connected to a connector, the center pin of the connector passes through the metal base and is crimped to the metal feeding point, and the cavity of the filter is connected to the connector ground through the metal base.

8. The debugging method of the miniaturized filter debugging tool according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Place the miniaturized filter on a metal base, and connect its input and output ports to corresponding metal feeding points; Step 2: Using the lifting mechanism to drive the pressing block to press down the miniaturized filter to fix the miniaturized filter; Step 3: Connect the data cables of the network analyzer to a connector. The center pin of the connector passes through the metal base and is crimped to the metal feed point. Step 4: Drive the corresponding debugging needle to rotate. Its head can feed inward along the axis of the debugging point, and during the inward feeding process, it can push the debugging area to continue feeding inward. At the same time, the debugging results are fed back through the network analysis data meter, and the debugging is completed through repeated iterations.

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