High-efficiency 868Mhz-915Mhz unmanned aerial vehicle antenna

Abstract

The utility model discloses a high-efficiency 868Mhz-915Mhz unmanned aerial vehicle antenna. The high-efficiency 868Mhz-915Mhz unmanned aerial vehicle antenna comprises a first radiating body and a second radiating body, the first radiating body and the second radiating body are arranged in the left half area of the FR4 substrate in a symmetrical mode, and the first radiating body comprises a first radiating unit, a second radiating unit, a third radiating unit, a fourth radiating unit and a fifth radiating unit; the second radiating body is arranged in the right half area of the FR4 substrate in a mode of being symmetrical to the first radiating body, and the second radiating body comprises a sixth radiating unit, a seventh radiating unit, an eighth radiating unit, a ninth radiating unit and a tenth radiating unit. According to the utility model, the two radiators are symmetrically designed on the FR4 substrate, the two radiators share 10 routing radiation units to form a high-efficiency 868Mhz-915Mhz unmanned aerial vehicle antenna whole body, and all the parts are crucial and are indispensable.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle antennas, and in particular to a high-efficiency 868Mhz-915Mhz unmanned aerial vehicle antenna. Background Art

[0002] Drones are a type of radio-controlled device that has emerged in recent years and are widely used in film and television shooting, aerial photography, surveying and mapping. The images taken by drones are transmitted to the receiving device via wireless communication, greatly saving the time and workload required for shooting.

[0003] With the development of drone technology, the requirements for drone signal receiving and sending capabilities are getting higher and higher. In order to obtain clearer images and expand the range of drone activities, more and higher requirements are put forward for drone antennas. Antennas are important components in drones and are used for wireless communication between the main circuit of the drone and external devices to achieve functions such as image transmission between drone equipment and external devices.

[0004] Due to the limitation of the maximum distance of signal transmission between the drone and external equipment, when the target to be photographed by the drone is beyond the communication range, the operator needs to move closer to the target. When the operator cannot approach the target, the drone cannot be used. Therefore, an antenna is needed to increase the communication range between the drone and external equipment and improve the coverage of the drone's activity area. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a high-efficiency 868Mhz-915Mhz UAV antenna, which aims to solve the problem that the 868Mhz-915Mhz UAV antennas currently on the market have narrow bandwidth, low antenna efficiency, and few types and forms, and cannot meet the market performance requirements for 868Mhz-915Mhz UAV antennas.

[0006] The utility model high-efficiency 868Mhz-915Mhz UAV antenna is realized by the following technical scheme, including a first radiator and a second radiator;

[0007] The first radiator is arranged in a left half area of ​​the FR4 substrate in a symmetrical manner with the second radiator, and the first radiator includes a first radiating unit, a second radiating unit, a third radiating unit, a fourth radiating unit and a fifth radiating unit;

[0008] The second radiator is arranged in a right half area of ​​the FR4 substrate in a symmetrical manner with the first radiator, and the second radiator includes a sixth radiating unit, a seventh radiating unit, an eighth radiating unit, a ninth radiating unit and a tenth radiating unit.

[0009] As a preferred technical solution, the first radiation unit is designed with a rectangular copper-clad routing, and is horizontally arranged on the left half of the center of the FR4 substrate, and a feeding point is arranged at the right end of the first radiation unit; due to the distance between the feeding point and the feeding point, a small notch is cut off at the right end of the first radiation unit;

[0010] The left end of the first radiation unit is vertically connected to the middle of the second radiation unit, and the second radiation unit is designed with a rectangular copper-clad trace and is vertically designed in the FR4 substrate; the right side in the middle of the second radiation unit is vertically connected to the first radiation unit, the lower end of the second radiation unit is vertically connected to the middle area of ​​the third radiation unit, and the upper end of the second radiation unit is vertically connected to the middle area of ​​the fourth radiation unit;

[0011] The third radiation unit is designed with a rectangular copper-clad wiring, and is horizontally arranged on the upper left edge of the FR4 substrate. The middle of the third radiation unit is vertically connected to the upper end of the second radiation unit.

[0012] The fourth radiation unit is designed with a rectangular copper-clad wiring. The fourth radiation unit is placed horizontally on the lower left edge of the FR4 substrate and is vertically connected to the lower end of the second radiation unit in the middle;

[0013] The fifth radiation unit is designed with a rectangular copper-clad routing, and the fifth radiation unit is vertically designed at the leftmost side of the FR4 substrate.

[0014] As a preferred technical solution, the fifth radiation unit is suspended vertically and is not connected to other radiation units. The fifth radiation unit is coupled with the second radiation unit, the third radiation unit and the fourth radiation unit, thereby optimizing the standing wave ratio, efficiency and gain of the antenna.

[0015] As a preferred technical solution, the sixth radiation unit is designed with a rectangular copper-clad routing as a whole, and is placed horizontally on the right half of the center of the FR4 substrate. A feeding point is set at the right end. Due to the distance between the feeding point and the design requirements, the feeding point is designed at the lower left end of the sixth radiation unit;

[0016] The right end of the sixth radiation unit is vertically connected to the middle of the seventh radiation unit. The seventh radiation unit is designed with a rectangular copper-clad wiring. The seventh radiation unit is vertically arranged in the FR4 substrate. The left side of the middle is vertically connected to the sixth radiation unit. The lower end of the seventh radiation unit is vertically connected to the middle area of ​​the ninth radiation unit. The upper end of the seventh radiation unit is vertically connected to the middle area of ​​the eighth radiation unit.

[0017] The eighth radiation unit is designed with a rectangular copper-clad wiring, and the eighth radiation unit is horizontally placed on the upper right edge of the FR4 substrate, and the middle is vertically connected to the upper end of the seventh radiation unit;

[0018] The ninth radiation unit is designed with a rectangular copper-clad wiring, the ninth radiation unit is horizontally placed on the lower right edge of the FR4 substrate, and the middle of the ninth radiation unit is vertically connected to the lower end of the seventh radiation unit;

[0019] The tenth radiating unit is designed with a rectangular copper-clad routing, and the tenth radiating unit is vertically designed at the rightmost side of the FR4 substrate.

[0020] As a preferred technical solution, the tenth radiating unit is suspended vertically and is not connected to other radiating units. The tenth radiating unit is coupled with the seventh radiating unit, the eighth radiating unit and the ninth radiating unit, thereby optimizing the standing wave ratio, efficiency and gain of the antenna.

[0021] The beneficial effects of the utility model are:

[0022] 1. The utility model symmetrically designs two radiators on the FR4 substrate. The two radiators have a total of 10 routing radiation units to form a high-efficiency 868Mhz-915Mhz drone antenna. Each part is crucial and indispensable.

[0023] 2. Compared with the 868Mhz-915Mhz drone antenna currently on the market, the utility model has a wider frequency band, higher signal efficiency, and better radiation direction characteristics, and has flexible adjustable and modifiable characteristics, which can easily change the required various adjacent frequency bands to meet different application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a structural layout diagram of the antenna of the utility model;

[0026] Figure 2 This is the RL free space test diagram of the antenna of this utility model;

[0027] Figure 3 This is the VSWR free space test diagram of the utility model antenna;

[0028] Figure 4 This is the Smith free space test diagram of the antenna of the utility model;

[0029] Figure 5 This is a screenshot of the efficiency and gain of the utility model antenna;

[0030] Figure 6 The 3D directional pattern of the utility model antenna at 868MHz and the 2D directional pattern of the XY plane;

[0031] Figure 7 The XZ and YZ plane 2D radiation patterns of the antenna of the utility model at 868MHz;

[0032] Figure 8 The 3D directional pattern and XY plane 2D directional pattern of the antenna of the utility model at 915MHz;

[0033] Fig. 9 The XZ and YZ plane 2D radiation patterns of the antenna of the utility model at 915MHz;

[0034] Description of reference numerals:

[0035] 1. First radiation unit; 2. Second radiation unit; 3. Third radiation unit; 4. Fourth radiation unit; 5. Fifth radiation unit; 6. Sixth radiation unit; 7. Seventh radiation unit; 8. Eighth radiation unit; 9. Ninth radiation unit; 10. Tenth radiation unit; 11. Feeding point; 12. Feeding point; 100. First radiator; 200. Second radiator. DETAILED DESCRIPTION

[0036] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0037] like Figure 1-Figure 9 As shown, a high-efficiency 868Mhz-915Mhz UAV antenna of the utility model includes a first radiator 100 and a second radiator 200;

[0038] The first radiator 100 is arranged in a left half area of ​​the FR4 substrate in a symmetrical manner with the second radiator 200, and the first radiator 100 includes a first radiating unit 1, a second radiating unit 2, a third radiating unit 3, a fourth radiating unit 4 and a fifth radiating unit 5;

[0039] The second radiator 200 is arranged in the right half of the FR4 substrate in a symmetrical manner with the first radiator 100 , and the second radiator 200 includes a sixth radiating unit 6 , a seventh radiating unit 7 , an eighth radiating unit 8 , a ninth radiating unit 9 and a tenth radiating unit 10 .

[0040] The first radiation unit 1 is designed with a rectangular copper-clad wiring, and is horizontally arranged on the left half of the center of the FR4 substrate, and a feeding point 11 is arranged at the right end of the first radiation unit 1; due to the required distance between the feeding point 11 and the feeding point 12, a small notch is cut off at the right end of the first radiation unit 1;

[0041] The left end of the first radiation unit 1 is vertically connected to the middle of the second radiation unit 2, and the second radiation unit 2 is designed with a rectangular copper-clad trace and is vertically designed in the FR4 substrate; the right side in the middle of the second radiation unit 2 is vertically connected to the first radiation unit 1, the lower end of the second radiation unit 2 is vertically connected to the middle area of ​​the third radiation unit 3, and the upper end of the second radiation unit 2 is vertically connected to the middle area of ​​the fourth radiation unit 4;

[0042] The third radiation unit 3 is designed with a rectangular copper-clad wiring, and is horizontally arranged on the upper left edge of the FR4 substrate. The middle of the third radiation unit 3 is vertically connected to the upper end of the second radiation unit 2;

[0043] The fourth radiation unit 4 is designed with a rectangular copper-clad wiring. The fourth radiation unit 4 is horizontally placed on the lower left edge of the FR4 substrate, and is vertically connected to the lower end of the second radiation unit 2 in the middle;

[0044] The fifth radiation unit 5 is designed with a rectangular copper-clad wiring, and the fifth radiation unit 5 is vertically designed at the leftmost side of the FR4 substrate.

[0045] The fifth radiation unit 5 is suspended and placed vertically, and is not connected to other radiation units. The fifth radiation unit 5 is coupled with the second radiation unit 2, the third radiation unit 3 and the fourth radiation unit 4, so as to optimize the standing wave ratio, efficiency and gain of the antenna, and also enhance the radiation directivity of the left side of the antenna, so that the radiation of the antenna in all directions can be more uniform.

[0046] The sixth radiation unit 6 is designed as a rectangular copper-clad wire and is placed horizontally on the right half of the center of the FR4 substrate. A feeding point 12 is provided at the right end. Due to the spacing requirements and design requirements between the feeding point 12 and the feeding point 11, the feeding point 12 is designed at the lower left end of the sixth radiation unit 6.

[0047] The right end of the sixth radiation unit 6 is vertically connected to the middle of the seventh radiation unit 7. The seventh radiation unit 7 is designed with a rectangular copper-clad wiring. The seventh radiation unit 7 is vertically arranged in the FR4 substrate. The left middle side is vertically connected to the sixth radiation unit 6. The lower end of the seventh radiation unit 7 is vertically connected to the middle area of ​​the ninth radiation unit 9. The upper end of the seventh radiation unit 7 is vertically connected to the middle area of ​​the eighth radiation unit 8.

[0048] The eighth radiation unit 8 is designed with a rectangular copper-clad wiring, and the eighth radiation unit 8 is horizontally placed on the upper right edge of the FR4 substrate, and is vertically connected to the upper end of the seventh radiation unit 7 in the middle;

[0049] The ninth radiation unit 9 is designed with a rectangular copper-clad wiring. The ninth radiation unit 9 is horizontally placed on the lower right edge of the FR4 substrate. The middle of the ninth radiation unit 9 is vertically connected to the lower end of the seventh radiation unit 7.

[0050] The tenth radiation unit 10 is designed with a rectangular copper-clad wiring, and the tenth radiation unit 10 is vertically designed at the rightmost side of the FR4 substrate.

[0051] In addition, the tenth radiating unit 10 is suspended vertically and is not connected to other radiating units. The tenth radiating unit 10 is coupled with the seventh radiating unit 7, the eighth radiating unit 8 and the ninth radiating unit 9, thereby optimizing the standing wave ratio, efficiency and gain of the antenna, enhancing the radiation directivity of the right side of the antenna, and achieving better uniformity in the radiation of the antenna in all directions.

[0052] In addition, the FR4 substrate is rectangular, 115 mm long, 25 mm wide, and about 0.8 mm thick.

[0053] The 10 routing radiation units of the utility model are coupled together to generate a signal frequency range of 868Mhz-915Mhz. Reasonable design and routing significantly improve the antenna efficiency gain and radiation, and the signal radiation direction is more uniform.

[0054] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A high-efficiency 868Mhz-915Mhz UAV antenna, characterized by: The invention comprises a first radiator (100) and a second radiator (200); the first radiator (100) is arranged in a left half area of ​​an FR4 substrate in a manner symmetrical to the second radiator (200), and the first radiator (100) comprises a first radiating unit (1), a second radiating unit (2), a third radiating unit (3), a fourth radiating unit (4) and a fifth radiating unit (5); the second radiator (200) is arranged in a right half area of ​​the FR4 substrate in a manner symmetrical to the first radiator (100), and the second radiator (200) comprises a sixth radiating unit (6), a seventh radiating unit (7), an eighth radiating unit (8), a ninth radiating unit (9) and a tenth radiating unit (10).

2. The high-efficiency 868Mhz-915Mhz UAV antenna according to claim 1, characterized in that: The first radiation unit (1) is designed with a rectangular copper-clad routing and is arranged horizontally on the left half of the center of the FR4 substrate. A feeding point (11) is arranged at the right end of the first radiation unit (1), and a small notch is cut out at the right end to meet the spacing requirement between the feeding point (11) and the feeding point (12).

3. The high-efficiency 868Mhz-915Mhz UAV antenna according to claim 2, characterized in that: The left end of the first radiation unit (1) is vertically connected to the middle position of the second radiation unit (2); the second radiation unit (2) is designed with rectangular copper wiring and is vertically designed in the FR4 substrate, and the middle right side is vertically connected to the first radiation unit (1).

4. The high-efficiency 868Mhz-915Mhz UAV antenna according to claim 3, characterized in that: The lower end of the second radiation unit (2) is vertically connected to the middle area of ​​the third radiation unit (3); the third radiation unit (3) is designed with a rectangular copper-clad wiring and is arranged horizontally on the upper left edge of the FR4 substrate; and the middle of the third radiation unit (3) is vertically connected to the second radiation unit (2).

5. The high-efficiency 868Mhz-915Mhz UAV antenna according to claim 3, characterized in that: The upper end of the second radiation unit (2) is vertically connected to the middle area of ​​the fourth radiation unit (4); the fourth radiation unit (4) is designed with a rectangular copper-clad wiring and is arranged horizontally on the lower left edge of the FR4 substrate; and the middle of the fourth radiation unit (4) is vertically connected to the second radiation unit (2).

6. The high-efficiency 868Mhz-915Mhz UAV antenna according to claim 1, characterized in that: The fifth radiation unit (5) is designed with a rectangular copper-clad routing, is vertically designed on the left edge of the FR4 substrate, and is suspended vertically without being connected to other radiation units. The fifth radiation unit (5) is coupled with the second radiation unit (2), the third radiation unit (3) and the fourth radiation unit (4), thereby optimizing the standing wave ratio, efficiency and gain of the antenna.

7. The high-efficiency 868Mhz-915Mhz UAV antenna according to claim 1, characterized in that: The sixth radiation unit (6) is designed with a rectangular copper-clad routing and is arranged horizontally on the right half of the center of the FR4 substrate. A feeding point (12) is arranged at the right end, and the feeding point (12) is designed at the lower left end of the sixth radiation unit (6).

8. The high-efficiency 868Mhz-915Mhz UAV antenna according to claim 7, characterized in that: The right end of the sixth radiation unit (6) is vertically connected to the middle position of the seventh radiation unit (7); the seventh radiation unit (7) is designed with a rectangular copper-clad wiring, is vertically arranged in the FR4 substrate, and is vertically connected to the sixth radiation unit (6) at the middle left side.

9. The high-efficiency 868Mhz-915Mhz UAV antenna according to claim 8, characterized in that: The lower end of the seventh radiation unit (7) is vertically connected to the middle area of ​​the ninth radiation unit (9); the ninth radiation unit (9) is designed with a rectangular copper-clad wiring and is horizontally arranged on the lower right edge of the FR4 substrate; and the middle of the ninth radiation unit (9) is vertically connected to the seventh radiation unit (7).

10. The high-efficiency 868Mhz-915Mhz UAV antenna according to claim 8, characterized in that: The upper end of the seventh radiation unit (7) is vertically connected to the middle area of ​​the eighth radiation unit (8); the eighth radiation unit (8) is designed with a rectangular copper-clad routing and is horizontally arranged on the upper right edge of the FR4 substrate; and the middle of the eighth radiation unit (8) is vertically connected to the seventh radiation unit (7).

Images