An ultra-wideband interferometer direction-finding antenna

Abstract

The present invention discloses an ultra-wideband interferometer direction-finding antenna, which relates to the field of direction-finding antennas. The antenna comprises: a base, and a low-end antenna array and a high-end antenna array disposed above the base, wherein the high-end antenna array is higher than the low-end antenna array; a connecting mechanism connected to the base, and a mounting base disposed at the bottom of the connecting mechanism for quickly installing and removing the base. By providing a fixed component and a movable component, the present invention can be installed on the top of an SUV vehicle frame, eliminating the need for drilling installation using mounting parts and thus avoiding damage to the vehicle body. By providing a connecting mechanism, the hollow studs and bolts used in the prior art are replaced, effectively preventing the connection from loosening due to vibration during vehicle movement.

Description

Technical Field

[0001] The invention relates to the field of direction-finding antennas, in particular to an ultra-wideband interferometer-based direction-finding antenna. Background Art

[0002] The design principle of direction-finding antennas mostly adopts the principle of correlation interferometer direction-finding. Correlation interferometer direction-finding is: within the operating frequency range and 360-degree direction of the direction-finding antenna array, points are set according to a certain pattern, and sample groups are established at frequency intervals and azimuth intervals. During direction-finding, the measured data is correlated and interpolated with the sample group to obtain the direction of the incoming wave signal, thereby realizing radio direction-finding. Generally, direction-finding antennas are divided into fixed and vehicle-mounted types. Vehicle-mounted direction-finding antennas are generally installed on the top of the vehicle body.

[0003] Patent number CN 203300806 U, titled "An Interferometer Direction-Finding Antenna," relates to an interferometer direction-finding antenna comprising a radome housing an antenna array composed of antenna elements arranged in a specific order. The antenna array comprises a double-layer vertically polarized antenna array and a double-layer horizontally polarized antenna array. The upper portion of the double-layer vertically polarized antenna array comprises high-end vertically polarized antenna elements, while the lower portion comprises low-end vertically polarized antenna elements. The upper portion of the double-layer horizontally polarized antenna array comprises high-end horizontally polarized antenna elements, while the lower portion comprises low-end horizontally polarized antenna elements. A radio frequency matrix switch is installed at the base of the direction-finding antenna. The base installation in this patent requires irreversible drilling damage to the vehicle body, resulting in repair costs after disassembly, harming the interests of vehicle owners.

[0004] Patent number "CN 103887613 A," titled "Passive Direction-Finding Antenna Array for Phase Interferometer and Phase Interferometer," discloses a passive direction-finding antenna array for a phase interferometer and a phase interferometer. The array is divided into three layers from the outside in. The first layer is a circular antenna array consisting of multiple dual-polarized omnidirectional antenna elements arranged on a circle. Each dual-polarized omnidirectional antenna element includes a horizontally polarized element and a vertically polarized element. Each dual-polarized omnidirectional antenna element is connected to a multiple-select-one antenna switch via a polarization-selective output matching board, with the horizontally polarized elements and the vertically polarized elements arranged adjacent to each other on the circle. The second layer is a horizontally polarized antenna array comprising horizontally polarized ring elements. The third layer is a vertically polarized antenna array comprising vertically polarized biconical antenna elements, each of which is connected to a matching circuit. The horizontally polarized antenna array on the second layer and the vertically polarized antenna array on the third layer are connected to the input terminals of the same two-select-one antenna switch. The sensitivity of this patented test is easily affected by vehicle shaking, resulting in inaccurate and unstable test results.

[0005] Currently, direction-finding antennas installed on top of vehicles require the use of bolts during installation, and even require the installation of a corresponding mounting bracket on top of the vehicle body through bolts. This process is cumbersome and costly, and may cause damage to the vehicle body. At the same time, the existing direction-finding antennas are generally fixed to the base and fixing seat using a hollow screw and bolts. When the vehicle is moving, the bolts are subject to vibration and are prone to loosening, causing instability. Summary of the Invention

[0006] The purpose of the present invention is to provide an ultra-wideband interferometer direction-finding antenna in order to solve the problem.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an ultra-wideband interferometer direction-finding antenna, comprising: a base and a low-end antenna array and a high-end antenna array arranged above the base, the height of the high-end antenna array being higher than the height of the low-end antenna array; a connecting mechanism connected to the base and a mounting base arranged at the bottom end of the connecting mechanism, for quickly installing and disassembling the base; a fixing component fixedly connected to the mounting base and a moving component slidably connected to the mounting base, for fixing the above-mentioned mounting base to the top of a vehicle body.

[0008] As a further solution of the present invention: the connecting mechanism includes a mounting hole formed on the base, the inner wall of the mounting hole is fixedly connected with a fixing sleeve, the inner cavity of the fixing sleeve is slidably connected with a lifting seat that penetrates the outside of the fixing sleeve, and the fixing sleeve is formed with a limit groove for the lifting seat to slide, and the bottom end of the lifting seat is connected to a fixing column, the outer wall of the fixing column is sleeved with a hollow tube, the bottom end of the hollow tube is connected to a pressure plate, the inner wall of the bottom end of the fixing sleeve is sleeved with a docking head, the bottom end of the docking head is rotatably connected with a rotating ring, a stud is provided at the top center position of the rotating ring, the bottom end of the rotating ring is rotatably connected to the connecting column, the central bottom end of the lifting seat is provided with a hexagonal protrusion that matches the inner cavity of the docking head, and the inner cavity of the hollow tube is provided with a return spring connected to the fixing column.

[0009] As a further solution of the present invention: the moving assembly includes a rotating handle rotatably connected to the mounting seat, one end of the rotating handle is provided with a screw rod penetrating into the interior of the mounting seat, the outer wall of the screw rod is threadedly connected to the sliding seat, the bottom end of the sliding seat is connected to the base plate, the inner cavity of one end of the base plate is connected to a connecting spring, and the top end of the connecting spring is connected to a clamping block that is sleeved with the inner cavity of the base plate.

[0010] As a further solution of the present invention: the fixing assembly is composed of a sliding seat, a base plate, a clamping block, and a connecting spring, and the sliding seat and the mounting seat constituting the fixing assembly are fixedly connected by bolts.

[0011] As a further solution of the present invention: a threaded groove matching the stud is provided inside the hexagonal protrusion, the outer diameter of the docking joint is equal to the inner diameter of the fixing sleeve, and the connecting column is fixed to the top end of the mounting seat.

[0012] As a further solution of the present invention: the bottom end of the mounting seat is provided with a sliding groove for the sliding of the moving component, and one end of the clamping block is in the form of an inclined surface.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up fixed components and mobile components, and coordinating with the top frame of SUV models, the device can be installed on the top of the vehicle body, without the need to use mounting parts for drilling installation, thus avoiding damage to the vehicle body;

[0015] 2. By setting up a connection mechanism, the hollow studs and bolts in the prior art are replaced, which can effectively prevent the connection position from loosening due to vibration during the movement of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the connecting mechanism of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the mobile assembly of the present invention;

[0019] Figure 4 This is a schematic diagram of the installation of the return spring of the present invention.

[0020] In the figure: 1. Base; 2. Low-end antenna array; 3. High-end antenna array; 4. Connecting mechanism; 401. Mounting hole; 402. Fixing sleeve; 403. Lifting seat; 404. Limiting groove; 405. Fixing column; 406. Hollow cylinder; 407. Pressing plate; 408. Docking joint; 409. Rotating ring; 410. Stud; 411. Connecting column; 412. Hexagonal protrusion; 413. Reset spring; 5. Mounting seat; 6. Fixing assembly; 7. Moving assembly; 701. Rotating handle; 702. Screw; 703. Sliding seat; 704. Bottom plate; 705. Clamp; 706. Connecting spring. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 In an embodiment of the present invention, an ultra-wideband interferometer direction-finding antenna includes: a base 1, a low-end antenna array 2 and a high-end antenna array 3 arranged above the base 1, wherein the height of the high-end antenna array 3 is higher than that of the low-end antenna array 2; a connecting mechanism 4 connected to the base 1 and a mounting base 5 arranged at the bottom end of the connecting mechanism 4, for quickly installing and disassembling the base 1; a fixing component 6 fixedly connected to the mounting base 5 and a moving component 7 slidably connected to the mounting base 5, for fixing the above-mentioned mounting base 5 to the top of the vehicle body.

[0023] In this embodiment: First, when the device is mounted on a vehicle, the base 1 and the mounting seat 5 are connected using the connecting mechanism 4, and then the fixing component 6 is engaged with a frame on the top of the vehicle body, and then the moving component 7 is driven to move and connect it to another frame on the roof, and the installation is completed.

[0024] Please refer to Figure 2 and Figure 4 The connecting mechanism 4 includes a mounting hole 401 formed on the base 1, the inner wall of the mounting hole 401 is fixedly connected to a fixed sleeve 402, the inner cavity of the fixed sleeve 402 is slidably connected to a lifting seat 403 that penetrates the outside of the fixed sleeve 402, and a limiting groove 404 is formed on the fixed sleeve 402 for the lifting seat 403 to slide. The bottom end of the lifting seat 403 is connected to a fixed column 405, the outer wall of the fixed column 405 is sleeved with a hollow cylinder 406, the bottom end of the hollow cylinder 406 is connected to a pressing plate 407, and the inner wall of the bottom end of the fixed sleeve 402 is sleeved with a docking head 408, and the docking head 408 is connected to the bottom end of the fixed sleeve 402. 08 is rotatably connected to a rotating ring 409, a stud 410 is provided at the top center position of the rotating ring 409, and the bottom end of the rotating ring 409 is rotatably connected to a connecting column 411. The central bottom end of the lifting seat 403 is provided with a hexagonal protrusion 412 that matches the inner cavity of the docking head 408, and the inner cavity of the hollow cylinder 406 is provided with a return spring 413 connected to the fixed column 405; the interior of the hexagonal protrusion 412 is provided with a threaded groove that matches the stud 410, the outer diameter of the docking head 408 is equal to the inner diameter of the fixed sleeve 402, and the connecting column 411 is fixed to the top of the mounting seat 5.

[0025] In this embodiment: when using the connecting mechanism 4 to install the base 1, the docking head 408 is aligned with the inner cavity of the fixed sleeve 402. At this time, the stud 510 forms an upward squeezing force on the hexagonal protrusion 412, and the hexagonal stud 412 drives the lifting seat 403 to move upward. Then, by rotating the rotating ring 409, the rotating ring 409 drives the stud 410 to rotate. At this time, the stud 410 rotates and engages with the thread groove in the hexagonal stud 412. The hexagonal stud 412 now corresponds downward, driving the lifting seat 403 to move downward until the pressure plate 407 is tightly pressed against the base 1. At this time, the installation of the base 1 is completed.

[0026] Please refer to Figure 1 and Figure 3 The movable component 7 includes a rotating handle 701 rotatably connected to the mounting seat 5, one end of the rotating handle 701 is provided with a screw rod 702 that penetrates into the interior of the mounting seat 5, the outer wall of the screw rod 702 is threadedly connected to a sliding seat 703, the bottom end of the sliding seat 703 is connected to a bottom plate 704, the inner cavity of one end of the bottom plate 704 is connected to a connecting spring 706, and the top of the connecting spring 706 is connected to a clamping block 705 that is sleeved with the inner cavity of the bottom plate 704; the fixed component 6 is composed of a sliding seat 703, a bottom plate 704, a clamping block 705, and a connecting spring 706. The sliding seat 703 that constitutes the fixed component 6 is fixedly connected to the mounting seat 5 by bolts; the bottom end of the mounting seat 5 is provided with a sliding groove for the sliding of the movable component 7, and one end of the clamping block 705 is an inclined surface.

[0027] In this embodiment, when the device is installed on the roof as a whole, the inclined surface of the clamping block 705 of the fixing component 6 is first brought into contact with one frame. The inclined surface is subjected to force, driving the clamping block 705 to move downward and compressing the connecting spring 706 until the clamping block 705 is separated from one frame. At this time, the clamping block 705 forms a limit, and then the handle 701 is rotated to drive the screw rod 702 to rotate. The sliding seat 703 moves along the outer wall of the screw rod 702 under the action of its internal thread until the clamping block 705 of the moving component 7 contacts the other frame. At this time, the inclined surface is subjected to force, and the clamping block 705 moves downward and drives the connecting spring 706 to reset until the clamping block 7 05 is separated from the frame. At this time, the entire device is moved by pulling until the flat part of the clamping block 705 of the fixed component 6 is in contact with the frame. Then, the position of the clamping block 705 of the mobile component 6 is adjusted by rotating the rotating handle 701 until the flat surface of the clamping block 705 is in contact with the frame. At this time, the connection of the vehicle-mounted part is completed. When removing, the clamping block 705 of the mobile component 7 is pressed and the rotating handle 701 is rotated to separate the clamping block 705 from the frame. Thereafter, the clamping block 705 of the fixed component 6 is moved downward, and the entire device is pulled to move until the clamping block 705 is separated from the frame.

[0028] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An ultra-wideband interferometer direction-finding antenna, characterized in that: include: A base (1) and a low-end antenna array (2) and a high-end antenna array (3) arranged above the base (1), wherein the height of the high-end antenna array (3) is higher than the height of the low-end antenna array (2); A connecting mechanism (4) connected to the base (1) and a mounting seat (5) provided at the bottom end of the connecting mechanism (4) for quickly installing and disassembling the base (1); A fixed component (6) fixedly connected to the mounting seat (5) and a movable component (7) slidably connected to the mounting seat (5), used to fix the mounting seat (5) to the top of the vehicle body; The connecting mechanism (4) includes a mounting hole (401) formed on the base (1), the inner wall of the mounting hole (401) is fixedly connected to a fixed sleeve (402), the inner cavity of the fixed sleeve (402) is slidably connected to an external lifting seat (403) that passes through the fixed sleeve (402), the fixed sleeve (402) is formed with a limiting groove (404) for the lifting seat (403) to slide, the bottom end of the end of the lifting seat (403) is connected to a fixed column (405), the outer wall of the fixed column (405) is sleeved with a hollow cylinder (406), and the bottom end of the hollow cylinder (406) is A pressure plate (407) is connected, the inner wall of the bottom end of the fixed sleeve (402) is sleeved with a docking head (408), the bottom end of the docking head (408) is rotatably connected to a rotating ring (409), a stud (410) is provided at the center position of the top end of the rotating ring (409), the bottom end of the rotating ring (409) is rotatably connected to a connecting column (411), the central bottom end of the lifting seat (403) is provided with a hexagonal protrusion (412) that matches the inner cavity of the docking head (408), and the inner cavity of the hollow cylinder (406) is provided with a reset spring (413) connected to the fixed column (405); The moving assembly (7) includes a rotating handle (701) rotatably connected to the mounting seat (5), one end of the rotating handle (701) is provided with a screw rod (702) extending into the interior of the mounting seat (5), the outer wall of the screw rod (702) is threadedly connected to a sliding seat (703), the bottom end of the sliding seat (703) is connected to a bottom plate (704), the inner cavity of one end of the bottom plate (704) is connected to a connecting spring (706), and the top end of the connecting spring (706) is connected to a clamping block (705) sleeved with the inner cavity of the bottom plate (704); The fixing assembly (6) is composed of a sliding seat (703), a base plate (704), a clamping block (705), and a connecting spring (706). The sliding seat (703) and the mounting seat (5) constituting the fixing assembly (6) are fixedly connected by bolts.

2. The ultra-wideband interferometer direction-finding antenna according to claim 1, characterized in that: The interior of the hexagonal protrusion (412) is provided with a threaded groove that matches the stud (410), the outer diameter of the docking joint (408) is equal to the inner diameter of the fixing sleeve (402), and the connecting column (411) is fixed to the top end of the mounting seat (5).

3. The direction-finding antenna of an ultra-wideband interferometer according to claim 1, characterized in that: The bottom end of the mounting seat (5) is provided with a sliding groove for the moving component (7) to slide, and one end of the clamping block (705) is in the form of an inclined surface.

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