Miniaturized broadband direction-finding antenna

Abstract

The utility model discloses a miniaturized broadband direction-finding antenna, which comprises a mounting flange, a circular mounting support plate is arranged on the mounting flange, an enneagon array element mounting support column is arranged on the circular mounting support plate, an antenna array element mounting structural member is detachably connected onto the enneagon array element mounting support column, and the antenna array element mounting structural member is detachably connected onto the circular mounting support plate. The antenna array element installation structural member is fixedly connected with an antenna array element, the enneagon array element installation supporting column is provided with a groove, the groove is internally provided with an antenna change-over switch, the antenna change-over switch is electrically connected with the antenna array element, and the enneagon array element installation supporting column is provided with an antenna housing. A miniaturized structural design is adopted, so that the direction-finding antenna can be quickly erected and is more flexible to use, the whole set of system can be quickly erected and deployed on complex terrains, urban building roofs and the like, high-precision direction-finding tasks are implemented, and the problems of complex narrow-band direction-finding structure and high cost are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of miniaturized broadband direction-finding antennas, in particular to a miniaturized broadband direction-finding antenna. Background Art

[0002] With the advancement of signal processing technology, signal environments are becoming increasingly complex, signal forms are becoming more diverse, signal density is increasing, and the frequency distribution range of signals is expanding, significantly increasing the range and density of signal distribution in both the spatial and frequency domains. The shortcomings of narrowband direction-finding systems are gradually becoming apparent. Compared to narrowband communications, broadband communication systems can directly utilize pulses for communication, significantly reducing system power consumption and costs. Furthermore, existing antennas are often large and inflexible during transportation or installation, making them difficult to rapidly deploy in complex terrain or on rooftops of urban buildings. For example, a Chinese patent application titled "An Airborne Dual-Polarized Small Monitoring and Direction-Finding Antenna Array," filed under the application number "CN202220471094.0," utilizes a vertical monitoring antenna, a vertical antenna array, and a horizontal monitoring antenna for ease of use. However, its complex structure makes rapid deployment difficult, inflexible, and limited. Utility Model Content

[0003] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and provide a miniaturized broadband direction-finding antenna. By providing a mounting flange, a mounting flange, a 9-sided array element mounting support column, an antenna array element mounting structure, an antenna array element, an antenna switching switch, and an antenna cover, and adopting a miniaturized structural design, the direction-finding antenna can be quickly erected and used more flexibly. The entire system can be quickly erected and deployed in complex terrain, on the rooftops of urban buildings, etc., to perform high-precision direction-finding tasks, thereby solving the problems of complex narrowband direction-finding structure and high cost.

[0004] The present invention also provides the above-mentioned miniaturized broadband direction-finding antenna, comprising: a mounting flange, a circular mounting support plate provided on the mounting flange, a nonagonal array element mounting support column provided on the circular mounting support plate, an antenna array element mounting structural member detachably connected to the nonagonal array element mounting support column, an antenna array element fixedly connected to the antenna array element mounting structural member, a groove provided on the nonagonal array element mounting support column, an antenna switching switch provided in the groove, the antenna switching switch being electrically connected to the antenna array element, and a radome provided on the nonagonal array element mounting support column. Through the above structure, a miniaturized structural design is adopted, so that the direction-finding antenna can be quickly erected and used more flexibly. The entire system can be quickly erected and deployed on complex terrain, rooftops of urban buildings, etc., to perform high-precision direction-finding tasks, thereby solving the problems of complex narrowband direction-finding structure and high cost.

[0005] According to the miniaturized broadband direction-finding antenna described in the utility model, there are nine antenna array elements, which are closely arranged at uniform intervals with the geometric center of the 9-sided array element mounting support column as the center. The above structure facilitates use.

[0006] According to the miniaturized broadband direction-finding antenna described in the present invention, the antenna array elements are evenly fixed on the enneagonal array element mounting support columns through the antenna array element mounting structural components. The above structure facilitates the installation and fixation of the antenna array elements.

[0007] According to the miniaturized broadband direction-finding antenna of the present invention, the antenna array element includes a middle layer microstrip antenna and dielectric plates located on the left and right sides of the middle layer microstrip antenna. The above structure facilitates use.

[0008] According to the miniaturized broadband direction-finding antenna described in the utility model, the intermediate layer microstrip antenna includes a dielectric substrate, a radiating portion and a feeding portion on the upper layer of the dielectric substrate, and a metal ground portion on the lower layer of the dielectric substrate, with a length of 100 mm, a width of 30 mm, and a thickness of 1 mm; the radiating portion on the upper layer of the dielectric substrate is 30 mm wide and 55 mm wide, the feeding portion on the upper layer of the dielectric substrate is 22 mm long and 1.5 mm wide; the metal ground portion on the lower layer of the dielectric substrate is 37 mm long and 30 mm wide. Through the above structure, the size of the microstrip antenna is determined, which is convenient for use.

[0009] According to the miniaturized broadband direction-finding antenna described in the utility model, a rectangular radiation patch is designed on one side of the dielectric plate close to the middle layer microstrip antenna. The dielectric plate and the dielectric substrate use the same dielectric material, with a length of 70 mm, a width of 28 mm, and a thickness of 1 mm. The rectangular radiation patch has a length of 30 mm and a width of 28 mm. Through the above structure, the antenna array element gain is enhanced.

[0010] According to the miniaturized broadband direction-finding antenna described in the utility model, the antenna cover adopts a fiberglass honeycomb material with high wave transmittance and is detachably connected to the nine-sided array element mounting support column. Through the above structure, it has good corrosion resistance.

[0011] Beneficial effects:

[0012] Compared with the existing technology, this miniaturized broadband direction-finding antenna adopts a miniaturized structural design by being equipped with a mounting flange, a mounting flange, a 9-sided array element mounting support column, an antenna array element mounting structure, an antenna array element, an antenna switching switch, and an antenna cover. This allows the direction-finding antenna to be quickly erected and used more flexibly. The entire system can be quickly erected and deployed in complex terrain, on the roofs of urban buildings, etc., to perform high-precision direction-finding tasks, solving the problems of complex structure and high cost of narrowband direction-finding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is the overall structure diagram of the miniaturized broadband direction-finding antenna of the utility model;

[0015] Figure 2 This is a bottom-up structural diagram of the miniaturized broadband direction-finding antenna of the utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the miniaturized broadband direction-finding antenna of the utility model;

[0017] Figure 4 This is a structural diagram of the antenna array element of the miniaturized broadband direction-finding antenna of the utility model;

[0018] Figure 5 This is a side view of the antenna array element structure of the miniaturized broadband direction-finding antenna of the utility model.

[0019] Legend:

[0020] 1. Mounting flange; 2. Radome; 3. Circular mounting support plate; 4. Antenna array element; 5. Antenna array element mounting structure; 6. Nonagonal array element mounting support column; 7. Antenna switching switch; 8. Intermediate layer microstrip antenna; 9. Dielectric plate; 10. Dielectric substrate; 11. Metal ground portion of the lower layer of the dielectric substrate; 12. Radiating portion of the upper layer of the dielectric substrate; 13. Feed portion; 14. Rectangular radiating patch. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] Reference Figure 1-5, the miniaturized broadband direction-finding antenna of the present utility model embodiment comprises: a mounting flange 1, a circular mounting support plate 3 is provided on the mounting flange 1 to support the whole, a nonagonal array element mounting support column 6 is provided on the circular mounting support plate 3 to support the antenna array element 4, an antenna array element mounting structure 5 is detachably connected to the nonagonal array element mounting support column 6 for easy installation and disassembly, the antenna array element mounting structure 5 is fixedly connected to the antenna array element 4 to fix the antenna array element 4, a groove is provided on the nonagonal array element mounting support column 6, an antenna switching switch 7 is provided in the groove, the antenna switching switch 7 is electrically connected to the antenna array element 4, realizes the control and switching of the antenna array element 4 and effectively utilizes the internal space to reduce the size of the direction-finding antenna, a radome 2 is provided on the nonagonal array element mounting support column 6 to protect the antenna array element 4, the radome 2 is made of glass fiber reinforced plastic honeycomb material with high wave transmittance, has good corrosion resistance, and is detachably connected to the nonagonal array element mounting support column 6 for easy disassembly and installation.

[0023] There are nine antenna elements 4, and they are arranged closely and evenly spaced with the geometric center of the 9-sided array element mounting support column 6 as the center to determine the placement and distribution of the antenna elements 4. The antenna elements 4 are evenly fixed on the 9-sided array element mounting support column 6 through the antenna element mounting structure 5, which facilitates the installation and fixation of the antenna elements 4. The antenna element 4 includes an intermediate layer microstrip antenna 8 and dielectric plates 9 located on the left and right sides of the intermediate layer microstrip antenna 8. The intermediate layer microstrip antenna 8 includes a dielectric substrate 10, an upper layer radiation portion 12 and a feed portion 13 of the dielectric substrate, and a lower layer metal ground portion 11 of the dielectric substrate. The length is 100 mm and the width is 30 mm. , thickness is 1mm; the upper radiation part 12 of the dielectric substrate is 30mm wide and 55mm wide, the upper feeding part 13 of the dielectric substrate is 22mm long and 1.5mm wide; the metal ground part 11 of the lower layer of the dielectric substrate is 37mm long and 30mm wide, which determines the size of the middle layer microstrip antenna 8, and a rectangular radiation patch 14 is designed on the side of the dielectric plate 9 close to the middle layer microstrip antenna 8. The dielectric plate 9 and the dielectric substrate 10 use the same dielectric material, with a length of 70mm, a width of 28mm and a thickness of 1mm; the length of the rectangular radiation patch 14 is 30mm and a width of 28mm, which determines the size of the dielectric plate 9.

[0024] Working principle: When in use, the antenna array element 4 is installed on the ninagonal array element installation support column 6 through the antenna array element installation structure, and the antenna array element can be controlled by the antenna switching switch 7. After installation, the antenna cover is installed to protect the whole.

[0025] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Miniaturized broadband direction-finding antenna, characterized in that: include: A mounting flange (1) is provided on the mounting flange (1), a circular mounting support plate (3) is provided on the circular mounting support plate (3), a 9-sided array element mounting support column (6) is provided, an antenna array element mounting structural component (5) is detachably connected to the 9-sided array element mounting support column (6), an antenna array element (4) is fixedly connected to the antenna array element mounting structural component (5), a groove is provided on the 9-sided array element mounting support column (6), an antenna switching switch (7) is provided in the groove, the antenna switching switch (7) is electrically connected to the antenna array element (4), and a radome (2) is provided on the 9-sided array element mounting support column (6).

2. The miniaturized broadband direction-finding antenna according to claim 1, characterized in that: There are nine antenna array elements (4), which are closely arranged at even intervals with the geometric center of the 9-sided array element mounting support column (6) as the center.

3. The miniaturized broadband direction-finding antenna according to claim 1, characterized in that: The antenna array element (4) is evenly fixed on the enneagonal array element mounting support column (6) via the antenna array element mounting structural component (5).

4. The miniaturized broadband direction-finding antenna according to claim 1, characterized in that: The antenna array element (4) comprises a middle layer microstrip antenna (8) and dielectric plates (9) located on the left and right sides of the middle layer microstrip antenna (8).

5. The miniaturized broadband direction-finding antenna according to claim 4, characterized in that: The intermediate layer microstrip antenna (8) comprises a dielectric substrate (10), an upper layer radiation portion (12) and a feed portion (13) of the dielectric substrate, and a lower layer metal ground portion (11). The dielectric substrate (10) is made of Rogers 5880 material, has a length of 100 mm, a width of 30 mm, and a thickness of 1 mm; the upper layer radiation portion (12) of the dielectric substrate has a width of 30 mm and a width of 55 mm; the upper layer feed portion (13) of the dielectric substrate has a length of 22 mm and a width of 1.5 mm; the lower layer metal ground portion (11) of the dielectric substrate has a length of 37 mm and a width of 30 mm.

6. The miniaturized broadband direction-finding antenna according to claim 5, characterized in that: A rectangular radiation patch (14) is designed on one side of the dielectric plate (9) close to the middle layer microstrip antenna (8); the dielectric plate (9) and the dielectric substrate (10) are made of the same dielectric material, with a length of 70 mm, a width of 28 mm, and a thickness of 1 mm; the rectangular radiation patch (14) has a length of 30 mm and a width of 28 mm.

7. The miniaturized broadband direction-finding antenna according to claim 1, characterized in that: The antenna cover (2) is made of a glass fiber reinforced plastic honeycomb material with high wave transmittance, and is detachably connected to the nine-sided array element mounting support column (6).

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