A high power microwave waveguide breakdown test device

Abstract

This utility model relates to the field of testing device technology, and in particular to a high-power microwave waveguide breakdown testing device, comprising a device housing, an annular adjustable hanger, and a shock-resistant support assembly. A closed mounting cover is installed at the upper end of the device housing, and a microwave generator is installed at the upper end of the closed mounting cover. The shock-resistant support assembly is disposed inside the device housing. A closed chamber door is hinged to the side end of the device housing. An annular adjustable hanger is fixed to the inner wall of the bottom end of the device housing, and two lower suspension rods are symmetrically fixed to the lower end of the annular adjustable hanger. This utility model, through the combination of electric telescopic rods, an annular adjustable hanger, and a snap-fit ​​cover, achieves precise multi-angle adjustment of the microwave output head, simulating scenarios where microwaves act on a target object at different incident angles, such as vertical or oblique incidence, thus meeting the testing requirements for the breakdown characteristics of different parts of the waveguide.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to a high-power microwave waveguide breakdown testing device. Background Technology

[0002] During high-power microwave transmission, when the electromagnetic field strength within the waveguide exceeds a certain threshold, breakdown occurs. Breakdown can lead to microwave energy reflection, transmission interruption, and even damage to the waveguide and related equipment, severely restricting the power enhancement and stable operation of high-power microwave systems. Therefore, a microwave waveguide breakdown testing device is needed to accurately simulate various actual working conditions in a controlled experimental environment, enabling comprehensive and accurate testing and analysis of waveguide breakdown characteristics, thereby improving testing efficiency and data reliability.

[0003] The microwave output heads in existing testing devices are mostly rigidly fixed, such as by direct welding or bolting to the device frame. Although this can meet basic testing requirements, it has some drawbacks in actual use. Because the microwave output head is fixedly installed, the output angle cannot be flexibly adjusted, and it cannot adapt to the diverse needs of microwave incident angle in different testing scenarios. At the same time, the target is easily deviated due to the vibration generated by the microwave output during the test, which not only makes the overall device vibrate significantly but also affects the accuracy of the test results.

[0004] Therefore, a high-power microwave waveguide breakdown test device is proposed, which solves the problems of existing test devices being unable to adjust the angle of the microwave output head to meet the diverse requirements of the incident angle, and the vibration generated by the microwave output affecting the test accuracy. Utility Model Content

[0005] In order to overcome the problems of existing testing devices where the microwave output head cannot flexibly adjust the output angle, cannot adapt to the diverse needs of microwave incident angle in different testing scenarios, and the test object may shift due to microwave output vibration, causing the entire device to shake and seriously affecting the accuracy of test results.

[0006] The technical solution of this utility model is as follows: a high-power microwave waveguide breakdown test device, comprising a device housing, an annular adjusting hanger, and a seismic support assembly. A closed mounting cover is installed at the upper end of the device housing, and a microwave generator is installed at the upper end of the closed mounting cover. The seismic support assembly is provided inside the device housing. A closed chamber door is hinged to the side end of the device housing. An annular adjusting hanger is fixed to the inner wall of the bottom end of the device housing. Two lower suspension rods are symmetrically fixed to the lower end of the annular adjusting hanger. Each of the two lower suspension rods has a snap-fit ​​cover fixed to its side end. A microwave output head is movably connected to the inner side of the two snap-fit ​​covers.

[0007] Preferably, the upper end of the microwave output head is connected to a conductive tube, the output end of the microwave generator is connected to an RF cable, and the RF cable passes through the enclosed mounting cover and the device housing to connect to the inside of the conductive tube.

[0008] Preferably, a U-shaped support block is installed on the upper surface of the device housing, and an electric telescopic rod is hinged inside the U-shaped support block. A wrapping sleeve is fixed to the output end of the electric telescopic rod, and the wrapping sleeve is hinged to the outside of the conduction tube.

[0009] Preferably, the seismic support assembly includes a cushioning mat, a structural support rod, a receiving short rod, a target placement plate, a tension spring, a limiting slide, a limiting clamp, and a fastening screw. The cushioning mat is installed on the bottom inner wall of the device housing, and the structural support rod is installed on the upper end of the cushioning mat.

[0010] Preferably, the upper end of the structural support rod is hinged to a receiving short rod, and a target placement plate is placed on the upper end surface of the receiving short rod.

[0011] Preferably, the outer end of the structural support rod is hinged with a tension spring, and the upper end of the tension spring is hinged to the side end of the short rod.

[0012] Preferably, the upper surface of the target placement disc has a limiting groove, the upper end of the limiting groove is slidably connected to a limiting clamping plate, and the two sides of the target placement disc are internally threaded with fastening screws, the side ends of the fastening screws are connected to the outer ends of the limiting clamping plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. By combining an electric telescopic rod, a ring-shaped adjusting hanger, and a snap-fit ​​cover, the microwave output head can be precisely adjusted at multiple angles. This can simulate the scenario where microwaves act on a target at different incident angles, such as vertical or oblique incidence, thus meeting the testing requirements for the breakdown characteristics of different parts of the waveguide.

[0015] 2. The passive shock absorption structure formed by the buffer pad, tension spring and hinge structure effectively absorbs the vibration of the microwave generator during operation and the impact force at the moment of breakdown. In addition, the sliding cooperation between the limiting clamp and the limiting slide can accommodate various targets of different diameters without changing the clamps, reducing the testing cost. The interaction between the shock-resistant structure and the target fixing structure avoids the deviation of the microwave application point caused by the target displacement, ensuring that the relative position of the target and the microwave output head is consistent in multiple tests, improving data repeatability and accuracy. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the annular adjustable hanger of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the packaging card holder of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the limiting clamp of this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the receiving short rod of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Device housing; 2. Enclosed mounting cover; 3. Microwave generator; 4. Enclosed compartment door; 301. Annular adjusting hanger; 302. Lower suspension rod; 303. Clip cover; 304. Microwave output head; 305. Conducting tube; 306. U-shaped support block; 307. Electric telescopic rod; 308. Enclosing sleeve; 101. Buffer mat; 102. Frame support rod; 103. Supporting short rod; 104. Target placement tray; 105. Tension spring; 106. Limiting groove; 107. Limiting clamp; 108. Fastening screw. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a high-power microwave waveguide breakdown testing device, comprising a device housing 1, an annular adjusting hanger 301, and a shock-resistant support assembly. A closed mounting cover 2 is installed at the upper end of the device housing 1, and a microwave generator 3 is installed at the upper end of the closed mounting cover 2. The shock-resistant support assembly is installed inside the device housing 1. A closed chamber door 4 is hinged to the side end of the device housing 1. The annular adjusting hanger 301 is fixedly connected to the inner wall of the bottom end of the device housing 1. Two lower suspension rods 302 are symmetrically fixed to the lower end of the annular adjusting hanger 301. Each of the two lower suspension rods 302 has a snap-fit ​​cover 303 fixedly connected to its side end. A microwave output head 304 is movably connected to the inner side of the two snap-fit ​​covers 303. The annular adjusting hanger 301, in conjunction with the lower suspension rods 302 and the snap-fit ​​covers 303, supports the microwave output head 304, allowing the microwave output head 304 to move in multiple directions.

[0024] The upper end of the microwave output head 304 is connected to the conductive tube 305. The output end of the microwave generator 3 is connected to the radio frequency cable. The radio frequency cable passes through the enclosed mounting cover 2 and the device housing 1 and connects to the inside of the conductive tube 305. The microwave generator 3 generates a high-power microwave signal, which is transmitted to the conductive tube 305 through the radio frequency cable and finally directionally emitted by the microwave output head 304 to the target object to be tested.

[0025] A U-shaped support block 306 is installed on the upper surface of the outer casing 1 of the device. An electric telescopic rod 307 is hinged inside the U-shaped support block 306. A wrapping sleeve 308 is fixed to the output end of the electric telescopic rod 307. The wrapping sleeve 308 is hinged to the outside of the conduction tube 305. The telescopic movement of the electric telescopic rod 307 drives the conduction tube 305 and the microwave output head 304 to rotate around the snap-fit ​​cover 303, so as to achieve precise adjustment of the microwave output angle.

[0026] The seismic support assembly includes a cushioning mat 101, a structural support rod 102, a receiving short rod 103, a target placement plate 104, a tension spring 105, a limiting slide 106, a limiting clamp 107, and a fastening screw 108. The cushioning mat 101 is installed on the inner wall of the bottom end of the device housing 1, and the structural support rod 102 is installed on the upper end of the cushioning mat 101. The cushioning mat 101 absorbs external vibrations transmitted from the bottom of the device housing 1.

[0027] The upper end of the structural support rod 102 is hinged to a receiving short rod 103. A target placement plate 104 is placed on the upper surface of the receiving short rod 103. The hinge structure of the structural support rod 102 and the receiving short rod 103, together with the elastic tension of the tension spring 105, buffers the impact force generated by microwave breakdown or equipment operation.

[0028] A tension spring 105 is hinged to the outer end of the structural support rod 102. The upper end of the tension spring 105 is hinged to the side end of the short rod 103. The tension spring 105 will undergo elastic deformation after the target placement plate 104 above is impacted, reducing the instantaneous vibration.

[0029] The upper end face of the target placement tray 104 is provided with a limiting groove 106. The upper end of the limiting groove 106 is slidably connected to a limiting clamping plate 107. The two sides of the target placement tray 104 are internally threaded with fastening screws 108. The side ends of the fastening screws 108 are connected to the outer ends of the limiting clamping plate 107. By rotating the fastening screws 108, the limiting clamping plate 107 is driven to slide along the limiting groove 106, thereby achieving the clamping and fixing of targets of different sizes.

[0030] Working principle: According to Figures 4-5First, the target object to be tested is placed on the target object placement tray 104. By rotating the fastening screw 108, the limiting clamp 107 is driven to slide along the limiting slide groove 106 to achieve clamping and fixing of targets of different sizes. At the same time, the buffer pad 101 under the target object placement tray 104 absorbs the vibration generated by the microwave. Combined with the hinge structure of the structural support rod 102 and the supporting short rod 103, and the elastic tension of the tension spring 105, the impact force generated by the microwave breakdown or the operation of the equipment is buffered to avoid the target object position shift.

[0031] according to Figures 1-3 Then, the microwave generator 3 generates a high-power microwave signal, which is transmitted to the conduction tube 305 through the radio frequency cable, and finally emitted directionally to the target object by the microwave output head 304. At this time, the annular adjustment bracket 301 supports the microwave output head 304 through the lower suspension rod 302 and the snap-fit ​​cover 303. With the extension and retraction of the electric telescopic rod 307 on the U-shaped support block 306, the conduction tube 305 and the microwave output head 304 rotate around the snap-fit ​​cover 303, so as to achieve precise adjustment of the microwave output angle and realize multi-dimensional adjustment of the incident angle.

[0032] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-power microwave waveguide breakdown test device, comprising a device housing (1); characterized in that: It also includes a ring-shaped adjusting hanger (301) and an anti-vibration support assembly. A closed mounting cover (2) is installed on the upper end of the outer shell (1) of the device. A microwave generator (3) is installed on the upper end of the closed mounting cover (2). An anti-vibration support assembly is provided inside the outer shell (1). A closed compartment door (4) is hinged to the side end of the outer shell (1). A ring-shaped adjusting hanger (301) is fixed to the inner wall of the bottom end of the outer shell (1). Two lower suspension rods (302) are symmetrically fixed to the lower end of the ring-shaped adjusting hanger (301). A snap-fit ​​cover (303) is fixed to the side end of each of the two lower suspension rods (302). A microwave output head (304) is movably connected to the inner side of the two snap-fit ​​covers (303).

2. The high-power microwave waveguide breakdown testing device according to claim 1, characterized in that: The upper end of the microwave output head (304) is connected to a conductive tube (305), and the output end of the microwave generator (3) is connected to a radio frequency cable. The radio frequency cable passes through the enclosed mounting cover (2) and the device housing (1) and connects to the inside of the conductive tube (305).

3. The high-power microwave waveguide breakdown testing device according to claim 2, characterized in that: A U-shaped support block (306) is installed on the upper surface of the outer shell (1) of the device. An electric telescopic rod (307) is hinged inside the U-shaped support block (306). A wrapping sleeve (308) is fixed to the output end of the electric telescopic rod (307). The wrapping sleeve (308) is hinged to the outside of the conduction tube (305).

4. The high-power microwave waveguide breakdown testing device according to claim 1, characterized in that: The seismic support assembly includes a buffer mat (101), a structural support rod (102), a receiving short rod (103), a target placement plate (104), a tension spring (105), a limiting slide groove (106), a limiting clamp (107), and a fastening screw (108). The buffer mat (101) is installed on the bottom inner wall of the outer shell (1) of the device, and the structural support rod (102) is installed on the upper end of the buffer mat (101).

5. The high-power microwave waveguide breakdown testing device according to claim 4, characterized in that: The upper end of the structural support rod (102) is hinged to a receiving short rod (103), and a target placement plate (104) is placed on the upper end surface of the receiving short rod (103).

6. The high-power microwave waveguide breakdown testing device according to claim 5, characterized in that: The outer end of the structural support rod (102) is hinged with a tension spring (105), and the upper end of the tension spring (105) is hinged to the side end of the receiving short rod (103).

7. The high-power microwave waveguide breakdown testing device according to claim 5, characterized in that: The upper end face of the target placement tray (104) is provided with a limiting groove (106), and the upper end of the limiting groove (106) is slidably connected to a limiting clamp (107). The two sides of the target placement tray (104) are internally threaded with fastening screws (108), and the side ends of the fastening screws (108) are connected to the outer ends of the limiting clamp (107).

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