Antenna network testing device

Abstract

An antenna network testing device disclosed by the present invention comprises a plate body, a seat body, a first connecting assembly and a second connecting assembly, the seat body is located on a first plane, the plate body is located on a second plane perpendicular to the first plane and is connected with the seat body through the first connecting assembly, and the second connecting assembly is arranged on the seat body. The base body can be connected with a connector through a second connecting assembly, a front microstrip antenna array is arranged on one side of the plate body, a reverse umbrella-shaped dipole matching unit is arranged on the side, opposite to the front microstrip antenna array, of the plate body, and the front microstrip antenna array is connected with the reverse umbrella-shaped dipole matching unit to generate side lobes and microwave beams. Accurate testing of telecommunication parameters such as antenna network standing wave, insertion loss, phase amplitude and the like can be realized, and the testing precision and reliability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of antennas, in particular to an antenna network testing device. BACKGROUND

[0002] Under the background of the rapid development of modern communication and radar technology, the performance of antenna network, as the core component of radar system, wireless communication base station and other equipment, directly affects the signal transmission quality, detection accuracy and coverage of the whole system. With the popularization of 5G communication and the advancement of radar technology to higher frequency and more precise detection, the performance requirements of antenna network are constantly rising, which makes accurate testing of antenna network a key link to ensure efficient operation of equipment.

[0003] Traditional antenna network testing mostly relies on split waveguide tooling. This kind of tooling is based on metal material, which not only has a bulky structure, but also the inherent electromagnetic properties of metal material will interfere with the test signal, causing deviation in the test results and making it difficult to accurately reflect the real performance indicators of the antenna network. SUMMARY

[0004] In order to solve the technical problems existing in the background art, the present application provides an antenna network testing device.

[0005] The antenna network testing device provided by the present application comprises a board body, a seat body, a first connecting assembly and a second connecting assembly. The seat body is located on a first plane, the board body is located on a second plane perpendicular to the first plane and is connected to the seat body through the first connecting assembly, the second connecting assembly is arranged on the seat body, and the seat body can be connected to a connector through the second connecting assembly. One side of the board body is provided with a front microstrip antenna array, and the side of the board body opposite to the front microstrip antenna array is provided with a back umbrella-shaped dipole matching unit. The front microstrip antenna array is connected to the back umbrella-shaped dipole matching unit to generate a sidelobe and a microwave beam.

[0006] Preferably, the front microstrip antenna array comprises an array, a matching microstrip and a microstrip line, which are connected in sequence. The lower end of the microstrip line is provided with a welding area, and the microstrip line is welded on the board body through the welding area.

[0007] Preferably, the back umbrella-shaped dipole matching unit comprises a slot line, an array arm and a balanced double line, which are connected in sequence. The lower end of the balanced double line is provided with a grounding microstrip, and the balanced double line is grounded through the grounding microstrip.

[0008] Preferably, the first connecting assembly comprises two first bolts. Two first bolt holes are formed in the board body, and two second bolt holes are formed in the seat body. The two first bolt holes and the two second bolt holes are one-to-one corresponding and are connected by the two first bolts, respectively.

[0009] Preferably, the second connecting assembly comprises two third bolt holes arranged on the seat body, and a second bolt is arranged on the third bolt hole.

[0010] Preferably, the array element length is 24 mm, the array element width is 1.9 mm, the matching microstrip length is 13.5 mm, the matching microstrip width is 3.7 mm, the microstrip line length is 7.2 mm, and the microstrip line width is 1.9 mm.

[0011] Preferably, the slot line length is 16 mm, the slot line width is 1 mm, the array element arm length is 9 mm, the array element arm width is 5 mm, the balanced twin line length is 19 mm, the balanced twin line width is 18 mm, the ground microstrip length is 45 mm, and the ground microstrip width is 8 mm.

[0012] Preferably, the array element arm and the balanced twin line form an included angle of 64°.

[0013] The antenna network testing device provided by the application has the advantages that:

[0014] 1. The front microstrip antenna array and the back umbrella-shaped dipole matching unit are cooperatively designed, so that the device can accurately generate ideal side lobes and microwave beams. In combination with the design principle of Wilkinson microwave circuit and microwave software simulation optimization, the standing wave is small and the transmission efficiency is high in the working bandwidth in the L-C wave band frequency range, and the device can accurately test the electrical parameters such as the standing wave, insertion loss, phase and amplitude of the antenna network, and the test sensitivity can reach-70 dB weak signal, thereby greatly improving the test accuracy and reliability compared with the traditional split waveguide tool.

[0015] 2. The plate body and the seat body are arranged vertically and stably connected through the first connecting assembly, which optimizes the space utilization and facilitates flexible arrangement in different test scenes. The second connecting assembly is convenient for connection with an external connector to build a stable test channel. Meanwhile, the size design of the front and back microstrip structures strictly follows the microwave circuit principle, such as the specific relationship between the array element length and the wavelength, and the angle and size parameters of the matching unit, so as to ensure the stable electrical performance of the device and facilitate connection with the feed network to realize the block type expansion of the array surface and meet the test requirements of different scale antenna networks. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural diagram of a front microstrip antenna array of an antenna network testing device provided by the application;

[0017] Figure 2 FIG. 2 is a structural diagram of a back umbrella-shaped dipole matching unit of an antenna network testing device provided by the application;

[0018] Figure 3 FIG. 3 is a size schematic diagram of a front microstrip antenna array of an antenna network testing device provided by the application;

[0019] Figure 4 A size diagram of a reverse umbrella dipole matching unit of an antenna network testing device proposed by the present application. DETAILED DESCRIPTION

[0020] Reference Figures 1-4 The present application proposes an antenna network testing device, which comprises a board body 1, a seat body 2, a first connecting assembly and a second connecting assembly. The seat body 2 is located on a first plane, and the board body 1 is located on a second plane perpendicular to the first plane, and the two are stably connected through the first connecting assembly. This vertical layout helps to optimize the space utilization of the device and improve its adaptability in the testing scene. The second connecting assembly is arranged on the seat body 2, and the seat body 2 can be connected to the connector through the second connecting assembly, thereby building a connection path with the external testing equipment. The board body 1 is provided with a front microstrip antenna array on one side, and a reverse umbrella dipole matching unit on the side opposite to the front microstrip antenna array. The front microstrip antenna array is connected to the reverse umbrella dipole matching unit, and the two work together to generate ideal side lobes and microwave beams, meeting the testing needs of the antenna network.

[0021] The front microstrip antenna array comprises an array 3, a matching microstrip 4 and a microstrip line 5, which are connected in sequence. Among them, the array 3 is in small n type and has a three-segment structure, with a length of L1+L2+L3=24mm and a width of W1=1.9mm. The length is exactly one quarter of the length of the intermediate frequency wavelength λ. This design conforms to the principle of microwave circuit and can effectively realize the radiation and reception of signals. The matching microstrip 4 has a length of L4=13.5mm and a width of W2=3.7mm, which optimizes the matching of the circuit and reduces the loss in the signal transmission process. The microstrip line 5 has a length of L5=7.2mm and a width of W3=1.9mm, and is provided with a welding area 6 at the lower end. The microstrip line 5 is welded on the board body 1 through the welding area 6, ensuring the firmness of the connection and the stability of the electrical performance. At the same time, the microstrip line where the front microstrip antenna array is located has a thickness of 18um, the microstrip board adopts a foil-covered board R04003C (εγ=3.38, thickness 1.2mm), the copper foil has a thickness of 18um, and the bonding force between the lead and the substrate is not less than the bonding force between the ground copper foil and the substrate (referring to GB / T4722-92, i.e. pull-off force 15N). The standing wave of the lead of the microstrip board is less than 1.3, so as to ensure good electrical performance.

[0022] The reverse umbrella-shaped dipole matching unit comprises a groove line 7, an array arm 8 and a balanced double line 9, which are sequentially connected between the groove line 7, the array arm 8 and the balanced double line 9. The groove line 7 has a length L8 = 16 mm and a width W6 = 1 mm, the array arm 8 has a length L9 = 9 mm and a width W7 = 5 mm, the balanced double line 9 has a length L7 = 19 mm and a width W5 = 18 mm, and the grounding microstrip 10 has a length L6 = 45 mm and a width W4 = 8 mm. The lower end of the balanced double line 9 is provided with the grounding microstrip 10, the balanced double line 9 is grounded through the grounding microstrip 10, good electrical grounding is achieved, and the stability of signal transmission is ensured. The array arm 8 and the balanced double line 9 form an included angle of 64°, and this specific angle design is determined through microwave software simulation and engineering optimization, which helps to improve the performance of the matching unit. Similarly, the thickness of the reverse microstrip line is 18 um, and the material and performance requirements of the microstrip are consistent with those of the front side, except for the grounding area, which is treated with three-proofing to prevent performance degradation due to long-term exposure to a humid environment.

[0023] The first connecting assembly comprises two first bolts 11, two first bolt holes are formed in the plate body 1, two second bolt holes are formed in the seat body 2, and the two first bolt holes and the two second bolt holes are one-to-one corresponding and connected by the two first bolts 11, respectively. Through this bolt connection mode, the plate body 1 and the seat body 2 can be stably connected together, while ensuring a certain detachability, facilitating the installation, debugging and maintenance of the device. In actual application, this connection mode can withstand a certain external force, ensuring the structural stability of the device during testing.

[0024] The second connecting assembly comprises two third bolt holes provided on the seat body 2, and a second bolt can be installed on the third bolt hole. By installing the second bolt, the connector can be fixed on the seat body 2, realizing reliable connection of the antenna network testing device and external equipment such as a vector network analyzer, so as to complete the testing work of the telecommunication parameters such as the antenna network standing wave, insertion loss, phase amplitude, etc.

[0025] In actual use, one end of the vector network analyzer is connected to the antenna network testing device (connected through the connector connected by the second connecting assembly) through a cable, and the other end is connected to the antenna network through a cable, so that the precise testing of various indicators of the antenna network can be realized by the cooperative work of the front microstrip antenna array and the reverse umbrella-shaped dipole matching unit of the device. At the same time, the device can also be used as a transmitting or receiving unit of the antenna network, which is assembled to the antenna network to provide efficient signal transmission and reception function for radar systems and other equipment, fully exerting its performance advantages of wide frequency band, light weight, small profile, high strength, low cost, batch processing, simple structure and easy debugging.

[0026] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and the concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An antenna network test apparatus, characterized by, The utility model relates to a connector, including: The utility model discloses a connector, including: a plate body (1), a seat body (2), a first connecting assembly and a second connecting assembly, the seat body (2) is located on a first plane, the plate body (1) is located on a second plane vertical with the first plane and is connected the seat body (2) through the first connecting assembly, the second connecting assembly is arranged on the seat body (2), the seat body (2) can be connected the connector through the second connecting assembly, one side of the plate body (1) is provided with a front microstrip antenna array, the side of the plate body (1) opposite the front microstrip antenna array is provided with a back umbrella type dipole matching unit, and the front microstrip antenna array is connected with the back umbrella type dipole matching unit to generate a sidelobe and microwave beam.

2. An antenna network test apparatus according to claim 1, wherein The utility model discloses a connector, including: a plate body (1), a seat body (2), a first connecting assembly and a second connecting assembly, the seat body (2) is located on a first plane, the plate body (1) is located on a second plane vertical with the first plane and is connected the seat body (2) through the first connecting assembly, the second connecting assembly is arranged on the seat body (2), the seat body (2) can be connected the connector through the second connecting assembly, one side of the plate body (1) is provided with a front microstrip antenna array, the side of the plate body (1) opposite the front microstrip antenna array is provided with a back umbrella type dipole matching unit, and the front microstrip antenna array is connected with the back umbrella type dipole matching unit to generate a sidelobe and microwave beam.

3. The antenna network test apparatus of claim 1, wherein The utility model discloses a connector, including: a plate body (1), a seat body (2), a first connecting assembly and a second connecting assembly, the seat body (2) is located on a first plane, the plate body (1) is located on a second plane vertical with the first plane and is connected the seat body (2) through the first connecting assembly, the second connecting assembly is arranged on the seat body (2), the seat body (2) can be connected the connector through the second connecting assembly, one side of the plate body (1) is provided with a front microstrip antenna array, the side of the plate body (1) opposite the front microstrip antenna array is provided with a back umbrella type dipole matching unit, and the front microstrip antenna array is connected with the back umbrella type dipole matching unit to generate a sidelobe and microwave beam.

4. The antenna network test apparatus of claim 1, wherein The utility model discloses a connector, including: a plate body (1), a seat body (2), a first connecting assembly and a second connecting assembly, the seat body (2) is located on a first plane, the plate body (1) is located on a second plane vertical with the first plane and is connected the seat body (2) through the first connecting assembly, the second connecting assembly is arranged on the seat body (2), the seat body (2) can be connected the connector through the second connecting assembly, one side of the plate body (1) is provided with a front microstrip antenna array, the side of the plate body (1) opposite the front microstrip antenna array is provided with a back umbrella type dipole matching unit, and the front microstrip antenna array is connected with the back umbrella type dipole matching unit to generate a sidelobe and microwave beam.

5. The antenna network test apparatus of claim 1, wherein, The utility model discloses a connector, including: a plate body (1), a seat body (2), a first connecting assembly and a second connecting assembly, the seat body (2) is located on a first plane, the plate body (1) is located on a second plane vertical with the first plane and is connected the seat body (2) through the first connecting assembly, the second connecting assembly is arranged on the seat body (2), the seat body (2) can be connected the connector through the second connecting assembly, one side of the plate body (1) is provided with a front microstrip antenna array, the side of the plate body (1) opposite the front microstrip antenna array is provided with a back umbrella type dipole matching unit, and the front microstrip antenna array is connected with the back umbrella type dipole matching unit to generate a sidelobe and microwave beam.

6. The antenna network test apparatus of claim 2, wherein, The utility model discloses a connector, including: a plate body (1), a seat body (2), a first connecting assembly and a second connecting assembly, the seat body (2) is located on a first plane, the plate body (1) is located on a second plane vertical with the first plane and is connected the seat body (2) through the first connecting assembly, the second connecting assembly is arranged on the seat body (2), the seat body (2) can be connected the connector through the second connecting assembly, one side of the plate body (1) is provided with a front microstrip antenna array, the side of the plate body (1) opposite the front microstrip antenna array is provided with a back umbrella type dipole matching unit, and the front microstrip antenna array is connected with the back umbrella type dipole matching unit to generate a sidelobe and microwave beam.

7. The antenna network test apparatus of claim 3, wherein, ​ 8. An antenna network testing apparatus according to claim 7, wherein, ​

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