Unmanned aerial vehicle antenna device

Abstract

The utility model discloses an unmanned aerial vehicle antenna device, which relates to the technical field of wireless communication, and comprises an antenna cap, an antenna sleeve, a base, a radio frequency cable, a first radiation assembly, a first PCB substrate, a second radiation assembly and a second PCB substrate, one end of the antenna sleeve is fixedly connected with the antenna cap, and the other end of the antenna sleeve is fixedly connected with the base; the first radiation assembly is electrically connected with the second radiation assembly through the first PCB substrate, the other end of the second radiation assembly is fixedly connected with the second PCB substrate, and the first radiation assembly, the first PCB substrate, the second radiation assembly and the second PCB substrate are all arranged in the antenna sleeve. The unmanned aerial vehicle antenna device has the advantages of being simple in structure, small in size and low in cost and is suitable for being matched with various carriers, the cost of equipment is reduced, and the competitiveness is improved; and the structural design has good antenna performance, and ensures radiation and reception of wireless signals in the L frequency band.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless communication technical field, concretely is a kind of unmanned aerial vehicle antenna device. BACKGROUND

[0002] Antenna is a transformer, it transforms the guided wave propagating on transmission line into electromagnetic wave propagating in unbounded medium (usually free space) or carries out opposite transformation. In the existing columnar antenna, bandwidth generally does not reach the requirement, generally in 2.4GHz or 5.8GHz WaFi frequency band, not satisfy the bandwidth and performance requirement in L wave band, and conventional L wave band antenna relative size is larger, the structure of antenna is complex, its formation also is higher, in order to meet the low cost, miniaturization, easy demand of unmanned aerial vehicle to L wave band antenna, the present application proposes a kind of unmanned aerial vehicle antenna device, satisfies the demand of L wave band antenna of unmanned aerial vehicle installation and use. SUMMARY

[0003] (I) technical problem solved

[0004] In view of the deficiencies in the prior art, the utility model provides an unmanned aerial vehicle antenna device, which solves the technical problems raised in the above background.

[0005] (II) technical scheme

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is: an unmanned aerial vehicle antenna device, including antenna cap, antenna cover, base, radio frequency cable, first radiation component, first PCB substrate, second radiation component, second PCB substrate;

[0007] One end of the antenna cover is fixedly connected to the antenna cover, and the other end is fixedly connected to the base;First radiation component is electrically connected to second radiation component through first PCB substrate, and the other end of second radiation component is fixedly connected to second PCB substrate, and first radiation component, first PCB substrate, second radiation component and second PCB substrate are all arranged in the antenna cover;

[0008] The radio frequency cable is electrically connected to the first PCB substrate through the radio frequency coaxial cable access point, and the radio frequency cable passes through the second radiation component and is wound into a spiral shape on the second PCB substrate to wrap part of the second PCB substrate, the spiral is provided with turns, and the number of turns can be adjusted according to different working frequencies to improve the antenna pattern radiation characteristics;

[0009] The two ends of the first PCB substrate are respectively arranged in the first radiation component and the second radiation component.

[0010] Preferably, the first PCB substrate is provided with a circuit, which is an LC filter circuit. This circuit has two functions: impedance matching and effective anti-interference capability. The input and output terminals of the filter circuit are electrically connected to the first radiation component and the second radiation component, respectively.

[0011] Preferably, the radio frequency cable is provided with a radio frequency connector at its end for connecting to a terminal device.

[0012] Preferably, a support member is vertically disposed on the second PCB substrate, and the support member is embedded in the second PCB substrate to form a "+" structure, which is used to support and fix the spiral structure made of radio frequency cable winding.

[0013] Preferably, both the first and second radiating components are elongated tubular shapes, and their material is preferably copper tubing. This shape and material can effectively simplify the antenna structure and provide good reliability. Choosing copper material with low resistivity makes it easier to weld in terms of process, which simplifies the antenna assembly.

[0014] Preferably, the antenna sleeve is made of aluminum alloy and has a cylindrical structure with openings at both ends. The outer surface of the antenna sleeve is coated with a layer of black paint to match the mounting carrier.

[0015] Preferably, the antenna cap is made of plastic.

[0016] Preferably, the base has three threaded holes at its bottom end, which are arranged in a triangle, with a through hole in the middle of the triangle through which the radio frequency cable passes.

[0017] Preferably, the base is made of aluminum alloy, which has good mechanical reliability and ensures that the antenna is firmly fixed.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are as follows:

[0020] This type of UAV antenna device has the advantages of simple structure, small size, and low cost, and is suitable for various carriers, which reduces the cost of the equipment and improves its competitiveness. Moreover, the structure design has good antenna performance, ensuring the radiation and reception of wireless signals in the L-band. Attached Figure Description

[0021] Fig. 1 This is a schematic diagram of the planar structure of this utility model;

[0022] Fig. 2 This is a cross-sectional structural diagram of the present invention.

[0023] In the diagram: 1 Antenna cap, 2 Antenna sleeve, 3 Base, 4 RF cable, 5 First radiating component, 6 First PCB substrate, 7 Second radiating component, 8 Second PCB substrate, 9 Support component. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figs. 1-2 As shown, this utility model provides a technical solution: a drone antenna device, including an antenna cap 1, an antenna sleeve 2, a base 3, an RF cable 4, a first radiating component 5, a first PCB substrate 6, a second radiating component 7, and a second PCB substrate 8.

[0026] One end of the antenna sleeve 2 is fixedly connected to the antenna cap 1, which is made of plastic, and the other end is fixedly connected to the base 3. The first radiating component 5 is electrically connected to the second radiating component 7 through the first PCB substrate 6. The other end of the second radiating component 7 is fixedly connected to the second PCB substrate 8. The first radiating component 5, the first PCB substrate 6, the second radiating component 7, and the second PCB substrate 8 are all set inside the antenna sleeve 2. The antenna sleeve 2 is made of aluminum alloy and is a cylindrical structure with openings at both ends. The outer surface of the antenna sleeve 2 is coated with a layer of black paint to match the mounting carrier.

[0027] The radio frequency cable 4 is electrically connected to the first PCB substrate 6 through the radio frequency coaxial cable access point. The end of the radio frequency cable 4 is provided with a radio frequency connector for connecting to the terminal device. The radio frequency cable 4 passes through the second radiation component 7 and is wound into a spiral shape on the second PCB substrate 8 to wrap around part of the second PCB substrate 8. The spiral has 10 turns, and the number of turns can be adjusted according to different operating frequencies to improve the radiation characteristics of the antenna pattern. A support member 9 is vertically provided on the second PCB substrate 8, and the support member 9 is embedded in the second PCB substrate 8 to form a "+" structure for supporting and fixing the spiral structure wound by the radio frequency cable 4.

[0028] The first PCB substrate 6 is arranged in the first radiating assembly 5 and the second radiating assembly 7 respectively, and the first PCB substrate 6 is provided with a circuit, which is an LC filter circuit, and the circuit has two functions: impedance matching and effectively improving the anti-interference capability; the input end and the output end of the filter circuit are electrically connected with the first radiating assembly 5 and the second radiating assembly 7 respectively; the first radiating assembly 5 and the second radiating assembly 7 are both long strip tubular, and the material is preferably copper pipe; such shape and material can effectively realize the simplification of the antenna structure form, and have good reliability; the copper material with low resistivity is selected, and the welding process is easier, so that the antenna assembly form is simplified.

[0029] The base 3 is provided with three threaded holes at the bottom end, and the three threaded holes are arranged in a triangular shape, and a through hole is arranged in the middle of the triangular shape, and the radio frequency cable 4 passes through the through hole, and the base 3 is made of aluminum alloy material and has good mechanical reliability, so as to ensure that the antenna is fixed firmly.

[0030] The use steps of the application are as follows:

[0031] The radio frequency cable 4 is responsible for transmitting radio frequency signals, and the signals are transmitted from the transmission source (such as the unmanned aerial vehicle main control unit) to the radiating assembly; the first radiating assembly 5 and the second radiating assembly 7 are used for converting the radio frequency signals into electromagnetic wave radiation; the first PCB substrate 6 and the second PCB substrate 8 provide physical support and contain control circuits or matching networks to optimize signal transmission efficiency; in the transmission mode, the unmanned aerial vehicle main control signal is sequentially transmitted through the radio frequency cable 4, the first PCB substrate 6 and the second PCB substrate 8, the first radiating assembly 5 and the second radiating assembly 7, and is radiated in the form of electromagnetic wave; in the receiving mode, the electromagnetic wave is sequentially transmitted through the first radiating assembly 5 and the second radiating assembly 7, the first PCB substrate 6 and the second PCB substrate 8, and the radio frequency cable 4, and is received by the unmanned aerial vehicle main control unit; by integrating the first radiating assembly 5, the first PCB substrate 6, the second radiating assembly 7 and the second PCB substrate 8 in the antenna sleeve 2, the balance between the volume, weight and function is achieved, and the unmanned aerial vehicle can realize multi-scene communication in a complex environment.

[0032] In the description of the utility model, it is understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as a limitation on the utility model.

[0033] In the utility model, unless another definite provision and limitation, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for ordinary skill in the art to the person, can understand the specific meaning of the above-mentioned terms in the utility model according to specific circumstances.

[0034] Although the embodiments of the utility model have been shown and described, for ordinary skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An unmanned aerial vehicle antenna apparatus, characterized by: Includes antenna cap (1), antenna sleeve (2), base (3), radio frequency cable (4), first radiating component (5), first PCB substrate (6), second radiating component (7), and second PCB substrate (8); The antenna sleeve (2) is fixedly connected to the antenna cap (1) at one end and to the base (3) at the other end; the first radiating component (5) is electrically connected to the second radiating component (7) through the first PCB substrate (6), and the other end of the second radiating component (7) is fixedly connected to the second PCB substrate (8), and the first radiating component (5), the first PCB substrate (6), the second radiating component (7), and the second PCB substrate (8) are all set inside the antenna sleeve (2); The radio frequency cable (4) is electrically connected to the first PCB substrate (6) through the radio frequency coaxial cable access point, and the radio frequency cable (4) passes through the second radiation component (7) and is wound into a spiral shape on the second PCB substrate (8) to wrap part of the second PCB substrate (8). The two ends of the first PCB substrate (6) are respectively placed inside the first radiation component (5) and the second radiation component (7).

2. The unmanned aerial vehicle antenna apparatus of claim 1, wherein: The first PCB substrate (6) is provided with a circuit, which is an LC filter circuit. The input and output terminals of the filter circuit are electrically connected to the first radiation component (5) and the second radiation component (7), respectively.

3. The unmanned aerial vehicle antenna apparatus of claim 1, wherein: An RF connector is provided at the end of the RF cable (4).

4. The unmanned aerial vehicle antenna apparatus of claim 1, wherein: A support member (9) is vertically arranged on the second PCB substrate (8), and the support member (9) is embedded in the second PCB substrate (8) to form a "+" structure.

5. The unmanned aerial vehicle antenna apparatus of claim 1, wherein: Both the first radiation component (5) and the second radiation component (7) are long tubular and made of copper.

6. The unmanned aerial vehicle antenna apparatus of claim 1, wherein: The antenna sleeve (2) is made of aluminum alloy and is a cylindrical structure with openings at both ends. The outer surface of the antenna sleeve (2) is coated with a layer of black paint.

7. The unmanned aerial vehicle antenna apparatus of claim 1, wherein: The antenna cap (1) is made of plastic.

8. The unmanned aerial vehicle antenna apparatus of claim 1, wherein: The base (3) has three threaded holes at its bottom end, and the three threaded holes are arranged in a triangle. A through hole is provided in the middle of the triangle, and the radio frequency cable (4) passes through the through hole.

9. The unmanned aerial vehicle antenna apparatus of claim 1, wherein: The base (3) is made of aluminum alloy.

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