Rapid test device for sum-difference device

Abstract

The utility model discloses a fast test device for a sum-difference device, relates to the field of radio frequency measurement, and solves the problems of low test speed and low efficiency caused by long time consumption for taking and installing screws when the existing VNA tests the sum-difference device. The key points of the technical scheme are as follows: the device comprises a first waveguide gasket arranged at a waveguide port of a waveguide coaxial adapter / waveguide load and a second waveguide gasket arranged at a waveguide port of a test fixture, and the first waveguide gasket and the second waveguide gasket attract each other; the surface of the first waveguide gasket is provided with a plurality of pins, and the surface of the second waveguide gasket is provided with a plurality of pin holes corresponding to the pins. And screw locking is replaced by magnetic attraction, so that the VNA sum-difference device testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of radio frequency measurement, and more specifically, to a quick test device for a sum-difference device. Background Art

[0002] A vector network analyzer (VNA) is a radio frequency measurement instrument used to measure the performance parameters of high-frequency devices, circuits, and systems, and can measure linear and non-linear parameters, frequency conversion parameters, etc. It can be divided into: two-port, three-port, four-port, six-port, etc. according to the number of test ports.

[0003] When the traditional two-port VNA is used to test the sum-difference device, two ports of the VNA are connected to the waveguide coaxial adapter through coaxial cables; the waveguide port of the waveguide coaxial adapter is aligned with the waveguide port of the sum-difference device test fixture, and screws are used to lock them; the other waveguide ports of the test fixture are connected to the waveguide load, and screws are used to lock them. When it is necessary to replace the test port, at least a pair of screws of the waveguide adapter and the test fixture, and a pair of screws of the waveguide load and the test fixture need to be removed; the positions of the waveguide adapter and the waveguide load are interchanged, and then the screws are tightened; a total of 4 screws need to be removed and 4 screws need to be installed. Among them, the time-consuming process of removing and installing screws results in slow test speed and low efficiency. When facing large-scale test requirements, such as testing tens of thousands of sets of sum-difference devices, a large number of personnel and test instruments are required, and the test cost is high.

[0004] Based on this, the present application provides a quick test device for a sum-difference device to solve the above problems. Summary of the Utility Model

[0005] The technical problem to be solved by the present application is that when the existing VNA tests the sum-difference device, the time-consuming process of removing and installing screws results in slow test speed and low efficiency. The purpose is to provide a quick test device for a sum-difference device, which uses magnetic attraction to replace screw locking to improve the test efficiency of the VNA sum-difference device.

[0006] The present application is realized through the following technical solutions:

[0007] A quick test device for a sum-difference device includes: a first waveguide gasket disposed at the waveguide port of the waveguide coaxial adapter / waveguide load and a second waveguide gasket disposed at the waveguide port of the test fixture, and the first waveguide gasket and the second waveguide gasket attract each other; a plurality of pins are disposed on the surface of the first waveguide gasket away from the waveguide coaxial adapter / waveguide load, and a plurality of pin holes corresponding to the pins are disposed on the surface of the second waveguide gasket away from the test fixture.

[0008] With the above technical solution, the traditional screw locking is improved to magnetic attraction locking, and rapid alignment is achieved through the pin and the pin hole. During the test, only need to install the first waveguide gasket on the waveguide port of the waveguide coaxial adapter / waveguide load, and install the second waveguide gasket on the waveguide port of the test fixture, then rapid docking and locking can be achieved; especially when it is necessary to replace the test port, rapid disassembly and connection can be realized, improving the test speed and efficiency.

[0009] Furthermore, a plurality of magnetic holes are provided on the surface of the first waveguide gasket away from the waveguide coaxial adapter / waveguide load, magnetic columns are embedded in the magnetic holes, and the magnetic columns attract each other with the second waveguide gasket.

[0010] Furthermore, the magnetic column is made of neodymium iron boron.

[0011] Furthermore, the second waveguide gasket is made of silicon steel.

[0012] Furthermore, the pins on the surface of the first waveguide gasket are arranged diagonally.

[0013] Furthermore, there are 2 pins on the surface of the first waveguide gasket.

[0014] Furthermore, the magnetic holes on the surface of the first waveguide gasket are symmetrically arranged along the center point of the first waveguide gasket.

[0015] Furthermore, the number of the magnetic holes is 4.

[0016] Furthermore, a plurality of first fixing screw holes are provided on the surface of the first waveguide gasket close to the waveguide coaxial adapter / waveguide load, and the first waveguide gasket is connected to the waveguide port of the waveguide coaxial adapter / waveguide load through the plurality of first fixing screw holes; the second waveguide gasket is provided with a plurality of second fixing screw holes, and the second waveguide gasket is connected to the waveguide port of the test fixture through the plurality of second fixing screw holes.

[0017] Furthermore, a plurality of self-aligning pin holes are provided on the surface of the first waveguide gasket away from the waveguide coaxial adapter, and the inner diameter of the self-aligning pin holes is adapted to the outer diameter of the pins.

[0018] Compared with the prior art, the present application has the following beneficial effects: Magnetic attraction is used instead of screw locking. An aluminum straight waveguide gasket with a neodymium iron boron magnetic column is installed at the waveguide port of the waveguide coaxial adapter / waveguide load, and a silicon steel straight waveguide gasket is installed at the waveguide port of the test fixture. The locking of the waveguide port of the waveguide coaxial adapter / waveguide load and the waveguide port of the test fixture is achieved based on the strong attraction between the neodymium iron boron magnet and silicon steel. At the same time, corresponding pins and pin holes are provided on the aluminum straight waveguide gasket and the silicon steel straight waveguide gasket to achieve rapid alignment and prevent falling off. After testing, the quick test device for the sum-difference device based on magnetic attraction locking provided by this solution reduces the 60 seconds of traditional screw locking to 3 seconds. A total of 18 replacements are required for a single sum-difference device, and it is estimated that a total of 17 minutes of time can be saved. Description of the Drawings

[0019] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation on the embodiments of this application. In the drawings:

[0020] Figure 1 It is a schematic structural diagram of a first waveguide gasket provided by an embodiment of the present application;

[0021] Figure 2 It is a schematic structural diagram of a second waveguide gasket provided by an embodiment of the present application;

[0022] Figure 3 It is a first structural perspective view of the cooperation of a waveguide load, a first waveguide gasket, and a second waveguide gasket provided by an embodiment of the present application;

[0023] Figure 4 It is a second structural perspective view of the cooperation of a waveguide load, a first waveguide gasket, and a second waveguide gasket provided by an embodiment of the present application;

[0024] Figure 5 It is a first structural perspective view of the cooperation of a waveguide coaxial adapter, a first waveguide gasket, and a second waveguide gasket provided by an embodiment of the present application;

[0025] Figure 6 It is a second structural perspective view of the cooperation of a waveguide coaxial adapter, a first waveguide gasket, and a second waveguide gasket provided by an embodiment of the present application;

[0026] Figure 7 It is a test schematic diagram provided by an embodiment of the present application.

[0027] Marks in the drawings and corresponding component names:

[0028] 1. First waveguide gasket; 11. Pin; 12. Magnetic hole position; 13. Self-aligning pin hole; 14. First fixing screw hole; 2. Second waveguide gasket; 21. Pin hole; 22. Second fixing screw hole. Detailed implementation mode

[0029] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments and drawings. The illustrative implementation modes and descriptions of the present utility model are only used to explain the present utility model and are not intended to limit the present utility model.

[0030] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0031] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0033] As Figure 1 - Figure 2 shown, an in-phase and quadrature detector rapid test device is provided in an embodiment of the present application. It includes: a first waveguide gasket 1 disposed at the waveguide port of the waveguide coaxial adapter / waveguide load and a second waveguide gasket 2 disposed at the waveguide port of the test fixture. The first waveguide gasket 1 and the second waveguide gasket 2 attract each other; a plurality of pins 11 are disposed on the surface of the first waveguide gasket 1 away from the waveguide coaxial adapter / waveguide load, and a plurality of pin holes 21 corresponding to the pins 11 are disposed on the surface of the second waveguide gasket 2 away from the test fixture.

[0034] By adopting the above technical solution, the waveguide port of the waveguide coaxial adapter / waveguide load and the waveguide port of the test fixture can be quickly connected by the mutually attracting first waveguide gasket 1 and second waveguide gasket 2, and the alignment of the waveguide port of the waveguide coaxial adapter / waveguide load and the waveguide port of the test fixture can be quickly achieved through the mutually cooperating pins 11 and pin holes 21, preventing the connection from falling off.

[0035] Please refer to Figure 3 - Figure 7As shown in the figure, when the sum-difference detector quick test device provided by this solution tests a certain set of S parameters of a single sum-difference detector, the first waveguide gasket 1 is installed at the waveguide port of the waveguide coaxial adapter / waveguide load, and the second waveguide gasket 2 is installed at the waveguide port of the test fixture; the waveguide port of the test fixture is connected to the waveguide coaxial adapter through the attraction of the first waveguide gasket 1 and the second waveguide gasket 2. The waveguide coaxial adapter is connected to the test port of the VNA, and the other waveguide ports of the test fixture are connected to the waveguide load; when changing the test port, simply swap the positions of the waveguide coaxial adapter and another waveguide load, without removing or screwing the screws; a single sum-difference detector needs to be replaced 20 times in total until 20 groups of test data are traversed.

[0036] The improvement of this solution is that the traditional screw locking is improved to magnetic attraction locking, and quick alignment is achieved through the pin 11 and the pin hole 21. During the test, simply install the first waveguide gasket 1 at the waveguide port of the waveguide coaxial adapter / waveguide load, and install the second waveguide gasket 2 at the waveguide port of the test fixture, then quick docking and locking can be achieved; especially when it is necessary to change the test port, quick disassembly and connection can be realized, improving the test speed and efficiency.

[0037] For the convenience of description, the surface of the first waveguide gasket 1 away from the waveguide coaxial adapter / waveguide load, that is, the side in contact with the second waveguide gasket 2, is called the front; the surface of the first waveguide gasket 1 close to the waveguide coaxial adapter / waveguide load, that is, the side in contact with the waveguide coaxial adapter / waveguide load, is called the back; the front and the back are two opposite end faces of the first waveguide gasket 1. A plurality of magnetic holes 12 are provided on the front of the first waveguide gasket 1, and magnetic columns are embedded in the magnetic holes 12, and the magnetic columns attract each other with the second waveguide gasket 2.

[0038] Adopting the above solution, by setting the magnetic holes 12 and embedding magnetic columns in the magnetic holes 12, the reliability of magnetic attraction locking is ensured.

[0039] Furthermore, the magnetic column is made of neodymium iron boron.

[0040] Furthermore, the second waveguide gasket 2 is made of silicon steel.

[0041] Adopting the above solution, the locking of the waveguide coaxial adapter at the VNA test port and the waveguide port of the test fixture, and the locking of the waveguide load and the waveguide port of the test fixture are realized through the strong attraction between the neodymium iron boron magnetic column and the silicon steel.

[0042] Furthermore, the pins 11 on the front of the first waveguide gasket 1 are arranged diagonally.

[0043] Furthermore, there are 2 pins 11 on the front of the first waveguide gasket 1.

[0044] With the above solution, the quick and precise alignment between the waveguide coaxial adapter / waveguide load waveguide port and the test fixture waveguide port can be achieved by the two pins 11 arranged diagonally.

[0045] Furthermore, the magnetic holes 12 on the front surface of the first waveguide gasket 1 are symmetrically arranged along the center point of the first waveguide gasket 1.

[0046] Furthermore, there are 4 magnetic holes 12.

[0047] With the above solution, through the 4 magnetic holes 12 symmetrically arranged along the center point of the first waveguide gasket 1, the quick and reliable magnetic attraction locking between the waveguide coaxial adapter / waveguide load and the test fixture waveguide port is realized.

[0048] Furthermore, a plurality of first fixing screw holes 14 are arranged on the reverse side of the first waveguide gasket 1, and the first waveguide gasket 1 is fixedly connected to the waveguide port of the waveguide coaxial adapter / waveguide load through the plurality of first screw holes 14; a plurality of second fixing screw holes 22 are arranged on the second waveguide gasket 2, and the second waveguide gasket 2 is connected to the waveguide port of the test fixture through the plurality of second fixing screw holes 22.

[0049] Furthermore, a plurality of self-aligning pin holes 13 are arranged on the front surface of the first waveguide gasket 1, and the inner diameter of the self-aligning pin holes 13 is adapted to the outer diameter of the pins 11. The self-aligning pin holes 13 can be 2 and are arranged along another diagonal line symmetrical to the pins 11.

[0050] It should be noted that the setting of the self-aligning pin holes 13 can achieve the quick alignment and locking between the first waveguide gasket 1 of the waveguide coaxial adapter A and the first waveguide gasket 1 of the waveguide coaxial adapter B, and is used for the calibration of the test port of the waveguide coaxial adapter.

[0051] Please refer to Figure 1 As shown, the first waveguide gasket 1 can adopt an aluminum straight waveguide gasket, and its cross-section can be rectangular. The pins 11, self-aligning pin holes 13 and magnetic holes 12 arranged on its front surface are all isolated and not closely adjacent or overlapping. The 4 magnetic holes 12 can be symmetrically arranged along the center point of the rectangle, the 2 pins 11 can be symmetrically arranged along one diagonal line of the rectangle, and the 2 self-aligning pin holes 13 can be symmetrically arranged along the other diagonal line of the rectangle. The plurality of second fixing screw holes 14 arranged on its reverse side can be four and are arranged at the four corners of the rectangle.

[0052] Please refer to Figure 2As shown, the second waveguide gasket 2 can be a silicon steel straight waveguide gasket, whose cross-section can be circular, and the pin holes 21 and the second fixing screw holes 22 on its surface are arranged inside and outside along the circular radius. The pin holes 21 can be 2 or 4 (4 in the figure), arranged in the inner circle of the circle, and just corresponding to the pins 11 of the first waveguide gasket 1; the second fixing screw holes 22 can be 4, arranged in the outer circle of the circle.

[0053] It should be noted that the cross-sections of the first waveguide gasket 1 and the second waveguide gasket 2 can also be other shapes.

[0054] Compared with the prior art, the present application has the following beneficial effects: using magnetic attraction instead of screw locking, installing an aluminum straight waveguide gasket with a neodymium iron boron magnetic column at the waveguide port of the waveguide coaxial adapter / waveguide load, and installing a silicon steel straight waveguide gasket at the waveguide port of the test fixture, and realizing the locking of the waveguide port of the waveguide coaxial adapter / waveguide load and the waveguide port of the test fixture based on the strong attraction between the neodymium iron boron magnet and silicon steel; at the same time, corresponding pins 11 and pin holes 21 are arranged on the aluminum straight waveguide gasket and the silicon steel straight waveguide gasket to achieve quick alignment and prevent falling off. After testing, the quick testing device for the sum-difference detector based on magnetic attraction locking provided by this solution reduces the 60s of traditional screw locking to 3 seconds. A single sum-difference detector needs to be replaced 18 times in total, and it is estimated that the total time saved is 17 minutes.

[0055] The above-mentioned specific embodiments have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fast test device for a sum and subtraction device, characterized in that: include: A first waveguide gasket (1) is arranged at the waveguide port of the waveguide coaxial adapter / waveguide load and a second waveguide gasket (2) is arranged at the waveguide port of the test fixture, wherein the first waveguide gasket (1) and the second waveguide gasket (2) attract each other; A plurality of pins (11) are arranged on a surface of the first waveguide gasket (1) away from the waveguide coaxial adapter / waveguide load, and a plurality of pin holes (21) corresponding to the pins (11) are arranged on a surface of the second waveguide gasket (2) away from the test fixture.

2. A fast test device for a summator and a subtractor according to claim 1, characterized in that: A plurality of magnetic holes (12) are arranged on a surface of the first waveguide gasket (1) away from the waveguide coaxial adapter / waveguide load, and magnetic columns are embedded in the magnetic holes (12), and the magnetic columns and the second waveguide gasket (2) attract each other.

3. A fast test device for a summator and a subtractor according to claim 2, characterized in that: The magnetic column is made of rubidium iron boron.

4. A rapid test device for a summator and a subtractor according to claim 3, characterized in that: The second waveguide gasket (2) is made of silicon steel.

5. A rapid test device for a summator and a subtractor according to claim 1, characterized in that: The pins (11) of the first waveguide gasket (1) are arranged diagonally.

6. A fast test device for a summator and a subtractor according to claim 5, characterized in that: There are two pins (11) on the surface of the first waveguide gasket (1).

7. A rapid test device for a summator and a subtractor according to claim 2, characterized in that: The magnetic holes (12) on the surface of the first waveguide gasket (1) are symmetrically arranged along the center point of the first waveguide gasket (1).

8. A rapid test device for a summator and a subtractor according to claim 7, characterized in that: The number of magnetic holes (12) is 4.

9. A fast test device for a summator and a subtractor according to claim 1, characterized in that: A plurality of first fixing screw holes (14) are arranged on the surface of the first waveguide gasket (1) close to the waveguide coaxial adapter / waveguide load, and the first waveguide gasket (1) is connected to the waveguide port of the waveguide coaxial adapter / waveguide load through the plurality of first fixing screw holes (14); The second waveguide gasket (2) is provided with a plurality of second fixing screw holes (22), and the second waveguide gasket (2) is connected to the waveguide port of the test fixture via the plurality of second fixing screw holes (22).

10. The rapid test device for a summator and subtractor according to claim 1, characterized in that: A plurality of self-aligning pin holes (13) are arranged on a surface of the first waveguide gasket (1) away from the waveguide coaxial adapter, and the inner diameter of the self-aligning pin hole (13) is adapted to the outer diameter of the pin (11).

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