WO2020038369A1 - Antenna and unmanned aerial vehicle - Google Patents

Antenna and unmanned aerial vehicle Download PDF

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Publication number
WO2020038369A1
WO2020038369A1 PCT/CN2019/101612 CN2019101612W WO2020038369A1 WO 2020038369 A1 WO2020038369 A1 WO 2020038369A1 CN 2019101612 W CN2019101612 W CN 2019101612W WO 2020038369 A1 WO2020038369 A1 WO 2020038369A1
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WO
WIPO (PCT)
Prior art keywords
antenna
substrate
ground portion
antenna ground
line
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PCT/CN2019/101612
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French (fr)
Chinese (zh)
Inventor
孙忆业
向胜昭
Original Assignee
深圳市道通智能航空技术有限公司
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Publication of WO2020038369A1 publication Critical patent/WO2020038369A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/02—Gyroplanes
    • B64C27/028—Other constructional elements; Rotor balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/285—Aircraft wire antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors

Definitions

  • the invention relates to the technical field of antennas, in particular to an antenna and an unmanned aerial vehicle.
  • UAV unmanned aerial vehicles
  • UAV which has the advantages of maneuverability, fast response, unmanned flight and so on.
  • Unmanned aerial vehicles are commonly used in military and civilian fields, and they are widely used in meteorology, agriculture, exploration, photography, transportation, and entertainment.
  • the UAV has an antenna, which transmits and receives signals through the antenna and transmits signals with the remote controller.
  • the existing built-in antennas of drones are generally installed in a tripod, which limits the size of the antenna.
  • the space of the drone arm is relatively large, the environment is more complex, which can easily affect the signal of the antenna and make the antenna It does not work properly, and the antenna performance is unstable due to the effects of coaxial current.
  • the present invention provides an antenna and an unmanned aerial vehicle to improve the stability of the antenna.
  • the present invention provides an antenna applicable to an unmanned aerial vehicle.
  • the antenna includes:
  • a substrate having a first surface and a second surface opposite to each other;
  • a radiation unit disposed on a first surface of the substrate
  • the antenna ground unit includes a first antenna ground portion and a second antenna ground portion electrically connected to each other, wherein the first antenna ground portion is disposed on the first surface, and the second antenna ground portion is disposed on the first surface. On both sides
  • the feeding coaxial line is close to the antenna ground unit
  • the radiating unit and the antenna ground unit are fed by the feeding coaxial line.
  • the antenna of the present invention is provided with a second antenna ground portion, so that internal cables such as a motor line, a light board line, and a coaxial line of other antennas in the drone have less influence on the antenna, so that the antenna can It works normally in a complex electromagnetic environment, that is, the antenna can be installed in a relatively large space and a complicated environment of the machine arm, and it is not necessary to be placed in a stand with a small space; in addition, the feeding coaxial line is close to the antenna The ground unit can effectively curb the current of the feeding coaxial line and make the antenna performance more stable.
  • the antenna further includes a through hole for penetrating the first antenna ground portion, the substrate, and the second antenna ground portion, the first antenna ground portion and the second antenna portion.
  • the antenna ground portion is connected by a metal piece provided in the through hole.
  • the first antenna ground portion, the substrate, and the second antenna ground portion are provided with through holes to connect the first antenna ground portion and the second antenna ground portion together, and the connection is made through the through hole connection, and the connection is convenient. , Reliable, and ensure the beauty of the antenna.
  • the radiating unit includes a microstrip feed line, an antenna element arm, and an antenna ground return line;
  • the first end of the microstrip feed line is connected to the feed end of the feed coaxial line, and the second end of the microstrip feed line is connected to the antenna element arm;
  • the antenna ground return line is respectively connected to the antenna element arm and the first antenna ground portion
  • the ground end of the feeding coaxial line is connected to the ground portion of the first antenna.
  • the antenna ground return line and the microstrip feed line are parallel to each other;
  • the antenna element arms are perpendicular to the ground return line and the microstrip feed line, respectively;
  • the antenna ground return line and the microstrip feed line form a U-shape, and the antenna element arm is perpendicular to the microstrip feed line.
  • the antenna element is disposed at an edge of the substrate along a length direction of the substrate.
  • the second antenna ground portion is disposed on the substrate along a length direction of the substrate, and a projection area of the second antenna ground portion on the substrate is greater than or equal to a drone The projected area of the motor wire and the lamp board wire in the camera arm on the substrate.
  • the substrate is a substrate made of FR-4 grade material.
  • a length of the first antenna ground portion along the substrate is shorter than a length of the feeding coaxial line.
  • the present invention provides an unmanned aerial vehicle, including a fuselage, an airframe connected to the airframe, and the antenna described above, wherein the antenna is disposed in the airframe.
  • FIG. 1 is a schematic structural diagram of a first surface of an antenna according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of a second surface of an antenna according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic perspective view of the antenna installed in the machine arm according to the first embodiment of the present invention.
  • Embodiment 4 is a standing wave parameter diagram of an antenna provided by Embodiment 1 of the present invention.
  • FIG. 5 is a directional diagram of the antenna provided on the horizontal plane and the vertical plane according to the first embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a body of an unmanned aerial vehicle provided in Embodiment 2 of the present invention.
  • orientations or positional relationships indicated by the terms “left”, “right”, “vertical”, and “lateral” are based on the orientations or positional relationships shown in the drawings, and only It is to facilitate the description of the invention and simplify the description, and does not indicate or imply that the device or element referred to must have a specific orientation, structure and operation in a specific orientation, so it cannot be understood as a limitation on the invention.
  • the terms “first”, “second”, “third”, “fourth”, etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
  • the features defined as “first”, “second”, “third”, “fourth”, etc. may explicitly or implicitly include one or more of the features.
  • the terms “installation”, “connected”, and “connected” should be understood in a broad sense unless otherwise specified and limited. For example, they may be fixed connections, or may be connected. Disassembly connection, or integral connection; it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • Disassembly connection, or integral connection it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • the specific meanings of the above terms in the creation of the present invention can be understood through specific situations.
  • the antenna of the present invention and an unmanned aerial vehicle using the antenna will be described in detail through specific embodiments.
  • FIG. 1 is a schematic structural diagram of a first surface of an antenna according to a first embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a second surface of an antenna provided by Embodiment 1 of the present invention.
  • FIG. 3 is a schematic perspective view of the antenna installed in the machine arm according to the first embodiment of the present invention.
  • the present invention provides an antenna that can be applied to an unmanned aerial vehicle.
  • the antenna 10 includes a substrate 101, a radiating unit, an antenna ground unit, a feeding coaxial line 107, and a through hole 108. .
  • the substrate 101 has a first surface and a second surface opposite to each other.
  • the substrate 101 is a substrate made of a FR-4 grade material.
  • the substrate 101 may be a printed circuit board (PCB), that is, the antenna 10 in this embodiment may be a PCB antenna.
  • the radiating unit and the antenna ground unit may be made of a metal (such as a copper sheet) on the substrate 101.
  • the radiation unit is disposed on the first surface of the substrate 101.
  • the radiation unit includes a microstrip feed line 102, an antenna element arm 103, and an antenna return line 104.
  • the antenna ground unit includes a first antenna ground portion 105 and a second antenna ground portion 106 which are electrically connected to each other.
  • the first antenna ground portion 105 is provided on the first surface of the substrate 101, and the second antenna ground portion 106 is provided on the substrate 101. On the second side.
  • the first end of the microstrip feeder 102 is connected to the feeding end of the feeding coaxial line 107
  • the second end of the microstrip feeder 102 is connected to the antenna element arm 103
  • the antenna return ground line 104 is respectively connected to the antenna element arm 103
  • the first antenna ground portion 105 is connected.
  • the first antenna ground portion 105 is also connected to a ground terminal of the feeding coaxial line 107.
  • the microstrip feed line 102 and the antenna back ground line 104 are parallel to each other, and the antenna element arm 103 is perpendicular to the antenna back ground line 104 and the microstrip feed line 102, respectively; or, in another embodiment, the microstrip feed line 102 and the antenna return ground line 104 form a U-shape, and the antenna element arm 103 is perpendicular to the microstrip feed line 102.
  • the antenna element arm 103 is disposed on the edge of the substrate 101 along the length direction of the substrate 101.
  • the feeding coaxial line 107 is closely adjacent to the first antenna ground portion 105, and the radiating unit and the antenna ground unit are fed by the feeding coaxial line 107.
  • the feeding coaxial line 107 has an outer conductor, an inner conductor, and an insulating dielectric layer located between the outer conductor and the inner conductor.
  • the inner conductor of the feeding coaxial line 107 protrudes as its feeding end.
  • the outer conductor of the electric coaxial line 107 is its ground terminal.
  • the through hole 108 is used to penetrate the first antenna ground portion 105, the substrate 101, and the second antenna ground portion 106.
  • the first antenna ground portion 105 and the second antenna ground portion 106 are connected by a metal member provided in the through hole 108.
  • the second antenna ground portion 106 is disposed on the second surface of the substrate 101 along the length direction of the substrate 101, and the projection area of the second antenna ground portion 106 on the substrate 101 is greater than or equal to that of the drone. Projection area of the motor wire and the lamp board wire in the arm on the substrate 101.
  • the second antenna ground portion 106, the motor wires and the light board wires in the arm of the drone are located at the lower edge of the substrate 101. It can be understood that, in other embodiments, The specific structural setting of 10 changes the position of the second antenna ground portion 106, the motor wire and the lamp board line in the arm of the drone on the substrate 101, such as being located on the upper edge or the middle of the substrate 101, as long as the first The two antenna ground portions 106 and the motor wires and the lamp board wires in the arm of the drone can be projected to overlap.
  • the operating frequency of the antenna 10 is 900 MHz. It can be understood that, in other embodiments, the working frequency of the antenna 10 is not limited to 900 MHz, and may be other, which is not strictly limited here.
  • the length of the first antenna ground portion 105 along the substrate 101 is smaller than the length of the feeding coaxial line 107.
  • the antenna 10 of this embodiment can be specifically applied to an unmanned aerial vehicle. It can be understood that the body of the unmanned aerial vehicle is used in conjunction with a remote controller, and signals are transmitted and received through the antenna 10, thereby realizing the body of the unmanned aerial vehicle and the remote controller. Communication. It should be noted that the antenna 10 can also be applied to other devices that need to transmit and receive signals.
  • the antenna 10 provided in this embodiment has a second antenna ground portion, so that internal cables such as motor wires, lamp board lines, and coaxial lines of other antennas within the drone will have a smaller impact on the antenna, so that
  • the antenna can work normally in a complex electromagnetic environment, that is, the antenna can be installed in a relatively large space and a complicated environment of the machine arm, and it is not necessary to be placed in a stand with a small space; in addition, the coaxial line is closely attached
  • the ground of the first antenna can effectively curb the current of the coaxial line and make the antenna performance more stable.
  • the feeding coaxial line 107 can be located on one side of the first surface of the substrate 101, and the outer conductor of the feeding coaxial line 107 can be in close contact with one side of the first antenna ground portion 105 and be in contact with the first antenna ground portion 105. Electrical connection.
  • the inner conductor of the feeding coaxial line 107 extends to the radiating unit and is electrically connected to the microstrip feeding line 102 of the radiating unit, so that the radiating unit and the first antenna ground 105 are fed through the feeding coaxial line 107.
  • the first antenna ground portion 105 is disposed on one side of the first surface of the substrate 101, and the radiation unit is disposed on the other side of the first surface of the substrate 101.
  • the second antenna ground portion 106 is provided on a second surface of the substrate 101 at a position that almost coincides with the first antenna ground portion 105.
  • a first pad may be provided at one end of the first antenna ground portion 105 near the microstrip feed line 102, and the first antenna ground portion 105 and the feeding coaxial line through the first pad.
  • the outer conductors of 107 are welded together; a second pad may also be provided at one end of the microstrip feeder 102 near the first antenna ground 105, and the microstrip feeder 102 is connected to the coaxial cable 107 via the second pad.
  • the inner conductors are welded together. It can be understood that, in other embodiments, it is also possible to directly connect the first antenna portion 105 to the connection point of the feed coaxial line 107 and the connection point of the microstrip feed line 102 and the feed coaxial line 107 without a pad. It is not strictly limited here.
  • the feeding coaxial line 107 may also be located on one side of the second surface of the substrate 101, that is, both the feeding end and the ground terminal of the feeding coaxial line 107 are located on the first side of the substrate 101. Two sides; or, the feeding end of the feeding coaxial line 107 is located on the first side of the substrate 101, and the ground end of the feeding coaxial line 107 is close to the second antenna ground portion 106, etc., which can also achieve the above function.
  • the antenna 10 further includes a through hole 108 penetrating the first antenna ground portion 105, the substrate 101 and the second antenna ground portion 106, and the first antenna ground portion 105 It is connected to the second antenna ground portion 106 by a metal member provided in the through hole 108. That is, the first antenna ground portion 105 and the second antenna ground portion 106 are connected through a through-hole connection.
  • the metal part may also be a metal wire or a metal wire passing through the through hole 108.
  • multiple through holes 108 may be arranged along the edges of the first antenna ground portion 105 and the second antenna ground portion 106 near the antenna ground line 104.
  • the number of the through holes 108 is not limited in the present invention, as long as at least a sufficient number of through holes 108 is ensured near the feeding end of the feeding coaxial line 107.
  • FIG. 4 is an antenna standing wave parameter diagram provided by Embodiment 1 of the present invention.
  • the antenna 10 of this embodiment can work at 900 MHz to 932 MHz, and the bandwidth is 32 MHz, which can meet the coverage of the commonly used 900 MHz frequency band.
  • FIG. 5 is a directional diagram of the antenna provided on the horizontal plane and the vertical plane according to the first embodiment of the present invention. As shown in FIG. 5, the antenna 10 of this embodiment is at 900 MHz, and the horizontal direction (H-plane) can still maintain omnidirectional, and the vertical direction (E-plane) gain is large, that is, the antenna 10 can be at 900 MHz. Achieve omnidirectional coverage.
  • the antenna 10 of this embodiment is specifically formed as an inverted-F antenna.
  • monopole antennas, dipole antennas, etc. may also be used, which are not strictly limited here.
  • the antenna 10 when the antenna 10 is applied to an unmanned aerial vehicle, the antenna 10 is specifically installed in an arm 110 of the unmanned aerial vehicle (as shown in FIG. 3). It has a radio frequency interface, and the end of the feeding coaxial line 107 far from its feeding end is connected with the radio frequency interface, so as to realize signal transmission between the body of the unmanned aerial vehicle and the remote controller.
  • FIG. 6 is a schematic structural diagram of an unmanned aerial vehicle provided in Embodiment 2 of the present invention.
  • this embodiment provides an unmanned aerial vehicle 20 for communicating with a control terminal such as a remote controller to send information such as the flight speed, altitude, and position of the unmanned aerial vehicle 20, Obtain control instructions from the remote control to control the take-off, flight attitude, direction, landing, etc. of the UAV.
  • the unmanned aerial vehicle 20 includes a fuselage 121, and an organic arm 122 is connected to the fuselage 121.
  • a power unit may be provided at an end of the arm 122.
  • the power unit may specifically include a rotor (not shown in the figure) and a motor 123. 123 is used to drive the rotor to rotate, which provides power for unmanned aerial vehicle flight.
  • the antenna provided in the first embodiment is installed inside the arm 122.

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  • Aviation & Aerospace Engineering (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
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  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

The present invention provides an antenna and an unmanned aerial vehicle. The antenna can be applied to the unmanned aerial vehicle, and the antenna comprises: a substrate, the substrate having a first surface and a second surface opposite to each other; a radiation unit, provided on the first surface of the substrate; an antenna ground unit, comprising a first antenna ground part and a second antenna ground part which are electrically connected to each other, wherein the first antenna ground part is provided on the first surface, and the second antenna ground part is provided on the second surface; and a feed coaxial line, tightly attached to the antenna ground unit. The radiation unit and the antenna ground unit are fed by means of the feed coaxial line. The antenna of the present invention has high stability.

Description

天线及无人飞行器Antennas and UAVs
相关申请的交叉引用Cross-reference to related applications
本申请要求申请号为201810948789.1，申请日为2018年8月20日申请的中国专利申请的优先权，其全部内容通过引用结合于本文。This application claims priority from Chinese Patent Application No. 201810948789.1, filed on August 20, 2018, the entire contents of which are incorporated herein by reference.
技术领域Technical field
本发明涉及天线技术领域，尤其涉及一种天线及无人飞行器。The invention relates to the technical field of antennas, in particular to an antenna and an unmanned aerial vehicle.
背景技术Background technique
随着科技的进步，无人飞行器受到了广泛的关注。无人飞行器简称：无人机，其具有机动灵活、反应快速、无人飞行等优点。无人飞行器通常应用于军事领域和民用领域，具体在气象、农业、勘探、摄影、输运、娱乐等领域应用非常广泛。无人飞行器上具有天线，通过天线进行信号的收发，与遥控器进行信号传送。With the advancement of technology, unmanned aerial vehicles have received widespread attention. UAV for short: UAV, which has the advantages of maneuverability, fast response, unmanned flight and so on. Unmanned aerial vehicles are commonly used in military and civilian fields, and they are widely used in meteorology, agriculture, exploration, photography, transportation, and entertainment. The UAV has an antenna, which transmits and receives signals through the antenna and transmits signals with the remote controller.
然而，现有的无人机内置天线，一般设置在脚架内，使得天线尺寸受限，而无人机机臂虽然空间尺寸相对较大，但环境较复杂，容易影响天线的信号，使天线无法正常工作，而且，因为同轴线电流的影响使得天线性能很不稳定。However, the existing built-in antennas of drones are generally installed in a tripod, which limits the size of the antenna. Although the space of the drone arm is relatively large, the environment is more complex, which can easily affect the signal of the antenna and make the antenna It does not work properly, and the antenna performance is unstable due to the effects of coaxial current.
发明内容Summary of the Invention
为了解决背景技术中提到的至少一个问题，本发明提供一种天线及无人飞行器，以提高天线的稳定性。In order to solve at least one of the problems mentioned in the background, the present invention provides an antenna and an unmanned aerial vehicle to improve the stability of the antenna.
为了实现上述目的，第一方面，本发明提供一种天线，可应用在无人飞行器上，所述天线包括：In order to achieve the above object, in a first aspect, the present invention provides an antenna applicable to an unmanned aerial vehicle. The antenna includes:
基板，所述基板具有相背的第一面和第二面；A substrate having a first surface and a second surface opposite to each other;
辐射单元，设置在所述基板的第一面；A radiation unit disposed on a first surface of the substrate;
天线地单元，包括相互电连接的第一天线地部和第二天线地部，其中所述第一天线地部设置在所述第一面上，所述第二天线地部设置在所述第二面 上；The antenna ground unit includes a first antenna ground portion and a second antenna ground portion electrically connected to each other, wherein the first antenna ground portion is disposed on the first surface, and the second antenna ground portion is disposed on the first surface. On both sides
馈电同轴线，紧贴所述天线地单元；The feeding coaxial line is close to the antenna ground unit;
其中，所述辐射单元和所述天线地单元通过所述馈电同轴线馈电。Wherein, the radiating unit and the antenna ground unit are fed by the feeding coaxial line.
本发明的天线，通过设置第二天线地部，使得无人机内部的电机线、灯板线及其他天线的同轴线等内部线缆对天线产生的影响较小，从而使所述天线能在复杂的电磁环境下正常工作，即天线可以设置在空间相对较大的、环境较复杂的机臂内，不用限制设置在空间较小的脚架内；另外，馈电同轴线紧贴天线地单元，可以有效扼制馈电同轴线的电流，使得天线性能更加稳定。The antenna of the present invention is provided with a second antenna ground portion, so that internal cables such as a motor line, a light board line, and a coaxial line of other antennas in the drone have less influence on the antenna, so that the antenna can It works normally in a complex electromagnetic environment, that is, the antenna can be installed in a relatively large space and a complicated environment of the machine arm, and it is not necessary to be placed in a stand with a small space; in addition, the feeding coaxial line is close to the antenna The ground unit can effectively curb the current of the feeding coaxial line and make the antenna performance more stable.
在其中一个实施例中，所述天线还包括通孔，用于贯穿所述第一天线地部、所述基板和所述第二天线地部，所述第一天线地部和所述第二天线地部通过设置在所述通孔中的金属件连接。In one embodiment, the antenna further includes a through hole for penetrating the first antenna ground portion, the substrate, and the second antenna ground portion, the first antenna ground portion and the second antenna portion. The antenna ground portion is connected by a metal piece provided in the through hole.
通过在第一天线地部、基板和第二天线地部的对应位置开设通孔，将第一天线地部和第二天线地部连接在一起，通过通孔相接的方式进行连接，连接方便、可靠，且保证了天线的美观度。The first antenna ground portion, the substrate, and the second antenna ground portion are provided with through holes to connect the first antenna ground portion and the second antenna ground portion together, and the connection is made through the through hole connection, and the connection is convenient. , Reliable, and ensure the beauty of the antenna.
在其中一个实施例中，所述辐射单元包括微带馈线、天线振子臂、天线回地线；In one embodiment, the radiating unit includes a microstrip feed line, an antenna element arm, and an antenna ground return line;
其中，所述微带馈线的第一端与所述馈电同轴线的馈电端连接，所述微带馈线的第二端与所述天线振子臂连接；The first end of the microstrip feed line is connected to the feed end of the feed coaxial line, and the second end of the microstrip feed line is connected to the antenna element arm;
所述天线回地线分别与所述天线振子臂、所述第一天线地部连接；The antenna ground return line is respectively connected to the antenna element arm and the first antenna ground portion;
所述馈电同轴线的接地端与所述第一天线地部连接。The ground end of the feeding coaxial line is connected to the ground portion of the first antenna.
在其中一个实施例中，所述天线回地线与所述微带馈线相互平行；In one embodiment, the antenna ground return line and the microstrip feed line are parallel to each other;
所述天线振子臂分别与所述回地线和所述微带馈线相互垂直；或者，The antenna element arms are perpendicular to the ground return line and the microstrip feed line, respectively; or
所述天线回地线与所述微带馈线组成U字型，所述天线振子臂与所述微带馈线垂直。The antenna ground return line and the microstrip feed line form a U-shape, and the antenna element arm is perpendicular to the microstrip feed line.
在其中一个实施例中，所述天线振子臂沿所述基板的长度方向设置在所述基板的边缘。In one embodiment, the antenna element is disposed at an edge of the substrate along a length direction of the substrate.
在其中一个实施例中，所述第二天线地部沿所述基板的长度方向设置在所述基板上，且所述第二天线地部在所述基板上的投影面积大于或等于无人机的机臂内的电机线及灯板线在所述基板上的投影面积。In one embodiment, the second antenna ground portion is disposed on the substrate along a length direction of the substrate, and a projection area of the second antenna ground portion on the substrate is greater than or equal to a drone The projected area of the motor wire and the lamp board wire in the camera arm on the substrate.
在其中一个实施例中，所述基板为由FR-4等级的材质制成的基板。In one embodiment, the substrate is a substrate made of FR-4 grade material.
在其中一个实施例中，所述第一天线地部沿基板的长度小于所述馈电同轴线的长度。In one embodiment, a length of the first antenna ground portion along the substrate is shorter than a length of the feeding coaxial line.
第二方面，本发明提供一种无人飞行器，包括机身、与所述机身连接的机臂以及上述的天线，其中所述天线设置在所述机臂内。In a second aspect, the present invention provides an unmanned aerial vehicle, including a fuselage, an airframe connected to the airframe, and the antenna described above, wherein the antenna is disposed in the airframe.
本发明的构造以及它的其他目的及有益效果将会通过结合附图而对优选实施例的描述而更加明显易懂。The structure of the present invention, as well as other objects and beneficial effects thereof, will be more apparent and comprehensible through the description of the preferred embodiments in conjunction with the accompanying drawings.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor.
图1为本发明实施例一提供的天线的第一面的结构示意图；FIG. 1 is a schematic structural diagram of a first surface of an antenna according to Embodiment 1 of the present invention; FIG.
图2为本发明实施例一提供的天线的第二面的结构示意图；FIG. 2 is a schematic structural diagram of a second surface of an antenna according to Embodiment 1 of the present invention; FIG.
图3为本发明实施例一提供的天线安装在机臂内的立体示意图；FIG. 3 is a schematic perspective view of the antenna installed in the machine arm according to the first embodiment of the present invention; FIG.
图4为本发明实施例一提供的天线的驻波参数图；4 is a standing wave parameter diagram of an antenna provided by Embodiment 1 of the present invention;
图5为本发明实施例一提供的天线在水平面和垂直面上的方向图；FIG. 5 is a directional diagram of the antenna provided on the horizontal plane and the vertical plane according to the first embodiment of the present invention; FIG.
图6为本发明实施例二提供的无人飞行器的机体的结构示意图。FIG. 6 is a schematic structural diagram of a body of an unmanned aerial vehicle provided in Embodiment 2 of the present invention.
附图标记说明：Reference sign description:
10—天线；101—基板；102—微带馈线；103—天线振子臂；104—天线回地线；105—第一天线地部；106—第二天线地部；107—馈电同轴线；108—通孔；20—无人飞行器；121—机身；110、122—机臂；123—电机。10—antenna; 101—substrate; 102—microstrip feeder; 103—antenna element; 104—antenna return to ground; 105—first antenna ground; 106—second antenna ground; 107—feed coaxial 108—through hole; 20—unmanned aerial vehicle; 121—airframe; 110, 122—airframe; 123—motor.
具体实施方式detailed description
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in combination with the drawings in the embodiments of the present invention. It is a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
在本发明创造的描述中，需要理解的是，术语“左”、“右”、“竖向”、 “横向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明创造和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明创造的限制。此外，术语“第一”、“第二”“第三”“第四”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”“第三”“第四”等的特征可以明示或者隐含地包括一个或者更多个该特征。In the description created by the present invention, it should be understood that the orientations or positional relationships indicated by the terms “left”, “right”, “vertical”, and “lateral” are based on the orientations or positional relationships shown in the drawings, and only It is to facilitate the description of the invention and simplify the description, and does not indicate or imply that the device or element referred to must have a specific orientation, structure and operation in a specific orientation, so it cannot be understood as a limitation on the invention. In addition, the terms "first", "second", "third", "fourth", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third", "fourth", etc. may explicitly or implicitly include one or more of the features.
在本发明创造的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以通过具体情况理解上述术语在本发明创造中的具体含义。In the description of the invention, it should be noted that the terms "installation", "connected", and "connected" should be understood in a broad sense unless otherwise specified and limited. For example, they may be fixed connections, or may be connected. Disassembly connection, or integral connection; it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the creation of the present invention can be understood through specific situations.
下面通过具体的实施例对本发明的天线、应用该天线的无人飞行器进行详细说明。The antenna of the present invention and an unmanned aerial vehicle using the antenna will be described in detail through specific embodiments.
实施例一Example one
图1为本发明实施例一提供的天线的第一面的结构示意图。图2为本发明实施例一提供的天线的第二面的结构示意图。图3为本发明实施例一提供的天线安装在机臂内的立体示意图。参照图1至图3所示，本发明提供一种天线，可应用在无人飞行器上，所述天线10包括：基板101、辐射单元、天线地单元、馈电同轴线107和通孔108。FIG. 1 is a schematic structural diagram of a first surface of an antenna according to a first embodiment of the present invention. FIG. 2 is a schematic structural diagram of a second surface of an antenna provided by Embodiment 1 of the present invention. FIG. 3 is a schematic perspective view of the antenna installed in the machine arm according to the first embodiment of the present invention. As shown in FIG. 1 to FIG. 3, the present invention provides an antenna that can be applied to an unmanned aerial vehicle. The antenna 10 includes a substrate 101, a radiating unit, an antenna ground unit, a feeding coaxial line 107, and a through hole 108. .
基板101具有相背的第一面和第二面。基板101为由FR-4等级的材质制成的基板。其中，基板101可以是印制电路板(Printed Circuit Board，简称PCB)，也就是说，本实施例的天线10具体可以是PCB板天线。具体地，所述辐射单元、所述天线地单元可以由位于基板101上的金属(如铜片)制成。The substrate 101 has a first surface and a second surface opposite to each other. The substrate 101 is a substrate made of a FR-4 grade material. The substrate 101 may be a printed circuit board (PCB), that is, the antenna 10 in this embodiment may be a PCB antenna. Specifically, the radiating unit and the antenna ground unit may be made of a metal (such as a copper sheet) on the substrate 101.
所述辐射单元设置在基板101的第一面，所述辐射单元包括微带馈线102、天线振子臂103、天线回地线104。所述天线地单元包括相互电连接的第一天线地部105和第二天线地部106，第一天线地部105设置在基板101的第一面上，第二天线地部106设置在基板101的第二面上。The radiation unit is disposed on the first surface of the substrate 101. The radiation unit includes a microstrip feed line 102, an antenna element arm 103, and an antenna return line 104. The antenna ground unit includes a first antenna ground portion 105 and a second antenna ground portion 106 which are electrically connected to each other. The first antenna ground portion 105 is provided on the first surface of the substrate 101, and the second antenna ground portion 106 is provided on the substrate 101. On the second side.
具体地，微带馈线102的第一端与馈电同轴线107的馈电端连接，微带馈线102的第二端与天线振子臂103连接，天线回地线104分别与天线振子臂103、第一天线地部105连接。第一天线地部105还与馈电同轴线107的接地端连接。Specifically, the first end of the microstrip feeder 102 is connected to the feeding end of the feeding coaxial line 107, the second end of the microstrip feeder 102 is connected to the antenna element arm 103, and the antenna return ground line 104 is respectively connected to the antenna element arm 103 The first antenna ground portion 105 is connected. The first antenna ground portion 105 is also connected to a ground terminal of the feeding coaxial line 107.
在一个实施例中，微带馈线102与天线回地线104相互平行，天线振子臂103分别与天线回地线104和微带馈线102相互垂直；或者，在另一个实施例中，微带馈线102与天线回地线104组成U字型，天线振子臂103与微带馈线102垂直。In one embodiment, the microstrip feed line 102 and the antenna back ground line 104 are parallel to each other, and the antenna element arm 103 is perpendicular to the antenna back ground line 104 and the microstrip feed line 102, respectively; or, in another embodiment, the microstrip feed line 102 and the antenna return ground line 104 form a U-shape, and the antenna element arm 103 is perpendicular to the microstrip feed line 102.
在一个实施例中，天线振子臂103沿基板101的长度方向设置在基板101的边缘。In one embodiment, the antenna element arm 103 is disposed on the edge of the substrate 101 along the length direction of the substrate 101.
馈电同轴线107紧贴第一天线地部105，所述辐射单元和所述天线地单元通过馈电同轴线107馈电。馈电同轴线107具有外导体、内导体以及位于所述外导体和所述内导体之间的绝缘介质层，其中，馈电同轴线107的内导体伸出作为其馈电端，馈电同轴线107的外导体为其接地端。The feeding coaxial line 107 is closely adjacent to the first antenna ground portion 105, and the radiating unit and the antenna ground unit are fed by the feeding coaxial line 107. The feeding coaxial line 107 has an outer conductor, an inner conductor, and an insulating dielectric layer located between the outer conductor and the inner conductor. The inner conductor of the feeding coaxial line 107 protrudes as its feeding end. The outer conductor of the electric coaxial line 107 is its ground terminal.
通孔108用于贯穿第一天线地部105、基板101和第二天线地部106，第一天线地部105和第二天线地部106通过设置在通孔108中的金属件连接。The through hole 108 is used to penetrate the first antenna ground portion 105, the substrate 101, and the second antenna ground portion 106. The first antenna ground portion 105 and the second antenna ground portion 106 are connected by a metal member provided in the through hole 108.
在一个实施例中，第二天线地部106沿基板101的长度方向设置在基板101的第二面上，且第二天线地部106在基板101上的投影面积大于或等于无人机的机臂内的电机线及灯板线在基板101上的投影面积。In one embodiment, the second antenna ground portion 106 is disposed on the second surface of the substrate 101 along the length direction of the substrate 101, and the projection area of the second antenna ground portion 106 on the substrate 101 is greater than or equal to that of the drone. Projection area of the motor wire and the lamp board wire in the arm on the substrate 101.
另外，图中示出的实施例，第二天线地部106、无人机的机臂内的电机线及灯板线都位于基板101下边缘，可以理解，在其他实施例中，可以根据天线10的具体结构设置改变第二天线地部106、无人机的机臂内的电机线及灯板线在基板101上的位置，如可以位于基板101的上边缘或中间等，只要可以保证第二天线地部106、无人机的机臂内的电机线及灯板线能够投影重合即可。In addition, in the embodiment shown in the figure, the second antenna ground portion 106, the motor wires and the light board wires in the arm of the drone are located at the lower edge of the substrate 101. It can be understood that, in other embodiments, The specific structural setting of 10 changes the position of the second antenna ground portion 106, the motor wire and the lamp board line in the arm of the drone on the substrate 101, such as being located on the upper edge or the middle of the substrate 101, as long as the first The two antenna ground portions 106 and the motor wires and the lamp board wires in the arm of the drone can be projected to overlap.
在一个实施例中，天线10的工作频率为900MHz。可以理解，在其他实施例中，天线10的工作频率并不限于900MHZ，还可以为其他，这里不作严格限定。In one embodiment, the operating frequency of the antenna 10 is 900 MHz. It can be understood that, in other embodiments, the working frequency of the antenna 10 is not limited to 900 MHz, and may be other, which is not strictly limited here.
在一个实施例中，第一天线地部105沿基板101的长度小于馈电同轴线107的长度。In one embodiment, the length of the first antenna ground portion 105 along the substrate 101 is smaller than the length of the feeding coaxial line 107.
本实施例的天线10具体可应用在无人飞行器上，可以理解的是，该无人飞行器的机体与遥控器配套使用，通过天线10进行信号的收发，从而实现无人飞行器的机体与遥控器之间的通信。需要说明的是，该天线10也可以应用在其他需要收发信号的装置上。The antenna 10 of this embodiment can be specifically applied to an unmanned aerial vehicle. It can be understood that the body of the unmanned aerial vehicle is used in conjunction with a remote controller, and signals are transmitted and received through the antenna 10, thereby realizing the body of the unmanned aerial vehicle and the remote controller. Communication. It should be noted that the antenna 10 can also be applied to other devices that need to transmit and receive signals.
本实施例提供的天线10，通过设置第二天线地部，使得无人机内部的电机线、灯板线及其他天线的同轴线等内部线缆对天线产生的影响较小，从而使所述天线能在复杂的电磁环境下正常工作，即天线可以设置在空间相对较大的、环境较复杂的机臂内，不用限制设置在空间较小的脚架内；另外，同轴线紧贴第一天线地部，可以有效扼制同轴线的电流，使得天线性能更加稳定。The antenna 10 provided in this embodiment has a second antenna ground portion, so that internal cables such as motor wires, lamp board lines, and coaxial lines of other antennas within the drone will have a smaller impact on the antenna, so that The antenna can work normally in a complex electromagnetic environment, that is, the antenna can be installed in a relatively large space and a complicated environment of the machine arm, and it is not necessary to be placed in a stand with a small space; in addition, the coaxial line is closely attached The ground of the first antenna can effectively curb the current of the coaxial line and make the antenna performance more stable.
其中，可使馈电同轴线107位于基板101的第一面的一侧，馈电同轴线107的外导体紧贴第一天线地部105的一侧，且与第一天线地部105电连接。馈电同轴线107的内导体延伸至所述辐射单元并与所述辐射单元的微带馈线102电连接，从而使辐射单元与第一天线地部105通过馈电同轴线107馈电。Wherein, the feeding coaxial line 107 can be located on one side of the first surface of the substrate 101, and the outer conductor of the feeding coaxial line 107 can be in close contact with one side of the first antenna ground portion 105 and be in contact with the first antenna ground portion 105. Electrical connection. The inner conductor of the feeding coaxial line 107 extends to the radiating unit and is electrically connected to the microstrip feeding line 102 of the radiating unit, so that the radiating unit and the first antenna ground 105 are fed through the feeding coaxial line 107.
示例性的，如图1和图2所示，第一天线地部105设置在基板101的第一面的一侧，所述辐射单元设置在基板101的第一面的另一侧。第二天线地部106设置在基板101的第二面且与第一天线地部105几乎重合的位置。参照图1至图3，具体实现时，第一天线地部105靠近微带馈线102一端处可设置第一焊盘，第一天线地部105通过所述第一焊盘与馈电同轴线107的外导体焊接在一起；微带馈线102靠近第一天线地部105的一端处也可以设置有第二焊盘，微带馈线102通过所述第二焊盘与馈电同轴线107的内导体焊接在一起。可以理解，在其他实施例中，也可以不用焊盘，直接在第一天线部105与馈电同轴线107的连接处、微带馈线102与馈电同轴线107的连接处进行点连接，这里不作严格限定。For example, as shown in FIGS. 1 and 2, the first antenna ground portion 105 is disposed on one side of the first surface of the substrate 101, and the radiation unit is disposed on the other side of the first surface of the substrate 101. The second antenna ground portion 106 is provided on a second surface of the substrate 101 at a position that almost coincides with the first antenna ground portion 105. 1 to 3, in a specific implementation, a first pad may be provided at one end of the first antenna ground portion 105 near the microstrip feed line 102, and the first antenna ground portion 105 and the feeding coaxial line through the first pad. The outer conductors of 107 are welded together; a second pad may also be provided at one end of the microstrip feeder 102 near the first antenna ground 105, and the microstrip feeder 102 is connected to the coaxial cable 107 via the second pad. The inner conductors are welded together. It can be understood that, in other embodiments, it is also possible to directly connect the first antenna portion 105 to the connection point of the feed coaxial line 107 and the connection point of the microstrip feed line 102 and the feed coaxial line 107 without a pad. It is not strictly limited here.
需要说明的是，在其他实现方式中，馈电同轴线107也可以位于基板101的第二面的一侧，即馈电同轴线107的馈电端和接地端都位于基板101的第二面；又或者，馈电同轴线107的馈电端位于基板101的第一面，馈电同轴线107的接地端紧贴第二天线地部106等，同样可实现上述功能。It should be noted that, in other implementations, the feeding coaxial line 107 may also be located on one side of the second surface of the substrate 101, that is, both the feeding end and the ground terminal of the feeding coaxial line 107 are located on the first side of the substrate 101. Two sides; or, the feeding end of the feeding coaxial line 107 is located on the first side of the substrate 101, and the ground end of the feeding coaxial line 107 is close to the second antenna ground portion 106, etc., which can also achieve the above function.
参照图1和图2所示，在本实施例中，所述天线10上还具有贯穿第一天线地部105、基板101和第二天线地部106的通孔108，第一天线地部105 和第二天线地部106通过设置在通孔108中的金属件连接。也就是说，第一天线地部105和第二天线地部106之间通过通孔相接的方式连接。具体实现时，在将通孔108开设好之后，向通孔108中熔融金属，熔融后的金属固化冷却后即可将第一天线地部105和第二天线地部106电连接在一起。当然，金属件也可以为穿设在通孔108中的金属丝或者金属线。Referring to FIG. 1 and FIG. 2, in this embodiment, the antenna 10 further includes a through hole 108 penetrating the first antenna ground portion 105, the substrate 101 and the second antenna ground portion 106, and the first antenna ground portion 105 It is connected to the second antenna ground portion 106 by a metal member provided in the through hole 108. That is, the first antenna ground portion 105 and the second antenna ground portion 106 are connected through a through-hole connection. In specific implementation, after the through-hole 108 is opened, the molten metal is melted into the through-hole 108, and the molten metal can be solidified and cooled to electrically connect the first antenna ground portion 105 and the second antenna ground portion 106 together. Of course, the metal part may also be a metal wire or a metal wire passing through the through hole 108.
具体实现时，通孔108可以是多个，比如，多个通孔108可沿第一天线地部105和第二天线地部106上靠近天线回地线104的边缘排布。对于通孔108的数量，本发明不作限定，只要至少保证在馈电同轴线107的馈电端附近有足够数量的通孔108即可。In specific implementation, there may be multiple through holes 108. For example, multiple through holes 108 may be arranged along the edges of the first antenna ground portion 105 and the second antenna ground portion 106 near the antenna ground line 104. The number of the through holes 108 is not limited in the present invention, as long as at least a sufficient number of through holes 108 is ensured near the feeding end of the feeding coaxial line 107.
图4为本发明实施例一提供的天线驻波参数图，如图4所示，本实施例的天线10可工作在900MHz～932MHz，带宽为32MHz，可满足常用的900MHz频段的覆盖。图5为本发明实施例一提供的天线在水平面和垂直面上的方向图。参照图5所示，本实施例的天线10在900MHz，水平方向上(H-plane)仍然能保持全向，在垂直方向上(E-plane)增益较大，即，该天线10在900MHz可实现全方向覆盖。FIG. 4 is an antenna standing wave parameter diagram provided by Embodiment 1 of the present invention. As shown in FIG. 4, the antenna 10 of this embodiment can work at 900 MHz to 932 MHz, and the bandwidth is 32 MHz, which can meet the coverage of the commonly used 900 MHz frequency band. FIG. 5 is a directional diagram of the antenna provided on the horizontal plane and the vertical plane according to the first embodiment of the present invention. As shown in FIG. 5, the antenna 10 of this embodiment is at 900 MHz, and the horizontal direction (H-plane) can still maintain omnidirectional, and the vertical direction (E-plane) gain is large, that is, the antenna 10 can be at 900 MHz. Achieve omnidirectional coverage.
本实施例的天线10具体形成为倒F天线。当然，在其他实现方式中，也可以是单极子天线、偶极子天线等等，这里不作严格限定。The antenna 10 of this embodiment is specifically formed as an inverted-F antenna. Of course, in other implementation manners, monopole antennas, dipole antennas, etc. may also be used, which are not strictly limited here.
如图3所示，当该天线10应用在无人飞行器上时，天线10具体安装在无人飞行器的机臂110内(如图3所示)，机臂110内具有射频板，射频板上具有射频接口，馈电同轴线107远离其馈电端的一端与射频接口连接，从而实现无人飞行器的机体与遥控器之间的信号传送。As shown in FIG. 3, when the antenna 10 is applied to an unmanned aerial vehicle, the antenna 10 is specifically installed in an arm 110 of the unmanned aerial vehicle (as shown in FIG. 3). It has a radio frequency interface, and the end of the feeding coaxial line 107 far from its feeding end is connected with the radio frequency interface, so as to realize signal transmission between the body of the unmanned aerial vehicle and the remote controller.
实施例二Example two
图6为本发明实施例二提供的无人飞行器的结构示意图。结合图1至图5所示，本实施例提供一种无人飞行器20，用于与遥控器等控制终端之间进行通讯，以发送无人飞行器20的飞行速度、高度、位置等信息，并获取遥控器的控制指令以控制无人飞行器的起飞、飞行姿态、方向、降落等。FIG. 6 is a schematic structural diagram of an unmanned aerial vehicle provided in Embodiment 2 of the present invention. With reference to FIGS. 1 to 5, this embodiment provides an unmanned aerial vehicle 20 for communicating with a control terminal such as a remote controller to send information such as the flight speed, altitude, and position of the unmanned aerial vehicle 20, Obtain control instructions from the remote control to control the take-off, flight attitude, direction, landing, etc. of the UAV.
其中，无人飞行器20包括机身121，机身121上连接有机臂122，机臂122的端部可设置动力装置，动力装置具体可包括：旋翼(图中未示出)以及电机123，电机123用于驱动旋翼转动，从而为无人飞行器飞行提供动力。 机臂122内部安装有实施例一中提供的天线。The unmanned aerial vehicle 20 includes a fuselage 121, and an organic arm 122 is connected to the fuselage 121. A power unit may be provided at an end of the arm 122. The power unit may specifically include a rotor (not shown in the figure) and a motor 123. 123 is used to drive the rotor to rotate, which provides power for unmanned aerial vehicle flight. The antenna provided in the first embodiment is installed inside the arm 122.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or to replace some or all of the technical features equivalently; and these modifications or replacements do not depart from the essence of the corresponding technical solutions of the technical solutions of the embodiments of the present invention. range.

Claims (10)

  1. 一种天线，可应用在无人飞行器上，其特征在于，所述天线包括：An antenna, which can be applied to an unmanned aerial vehicle, is characterized in that the antenna includes:
    基板，所述基板具有相背的第一面和第二面；A substrate having a first surface and a second surface opposite to each other;
    辐射单元，设置在所述基板的第一面；A radiation unit disposed on a first surface of the substrate;
    天线地单元，包括相互电连接的第一天线地部和第二天线地部，其中所述第一天线地部设置在所述第一面上，所述第二天线地部设置在所述第二面上；The antenna ground unit includes a first antenna ground portion and a second antenna ground portion electrically connected to each other, wherein the first antenna ground portion is disposed on the first surface, and the second antenna ground portion is disposed on the first surface. On both sides
    馈电同轴线，紧贴所述天线地单元；The feeding coaxial line is close to the antenna ground unit;
    其中，所述辐射单元和所述天线地单元通过所述馈电同轴线馈电。Wherein, the radiating unit and the antenna ground unit are fed by the feeding coaxial line.
  2. 根据权利要求1所述的天线，其特征在于，还包括：The antenna according to claim 1, further comprising:
    通孔，用于贯穿所述第一天线地部、所述基板和所述第二天线地部，所述第一天线地部和所述第二天线地部通过设置在所述通孔中的金属件连接。A through hole for penetrating the first antenna ground portion, the substrate, and the second antenna ground portion, the first antenna ground portion and the second antenna ground portion passing through the through hole provided in the through hole Metal parts connection.
  3. 根据权利要求1所述的天线，其特征在于，所述辐射单元包括微带馈线、天线振子臂、天线回地线；The antenna according to claim 1, wherein the radiating unit comprises a microstrip feed line, an antenna element arm, and an antenna ground return line;
    其中，所述微带馈线的第一端与所述馈电同轴线的馈电端连接，所述微带馈线的第二端与所述天线振子臂连接；The first end of the microstrip feed line is connected to the feed end of the feed coaxial line, and the second end of the microstrip feed line is connected to the antenna element arm;
    所述天线回地线分别与所述天线振子臂、所述第一天线地部连接；The antenna ground return line is respectively connected to the antenna element arm and the first antenna ground portion;
    所述馈电同轴线的接地端与所述第一天线地部连接。The ground end of the feeding coaxial line is connected to the ground portion of the first antenna.
  4. 根据权利要求3所述的天线，其特征在于，所述天线回地线与所述微带馈线相互平行；The antenna according to claim 3, wherein the antenna ground return line and the microstrip feed line are parallel to each other;
    所述天线振子臂分别与所述回地线和所述微带馈线相互垂直；或者，The antenna element arms are perpendicular to the ground return line and the microstrip feed line, respectively; or
    所述天线回地线与所述微带馈线组成U字型，所述天线振子臂与所述微带馈线垂直。The antenna ground return line and the microstrip feed line form a U-shape, and the antenna element arm is perpendicular to the microstrip feed line.
  5. 根据权利要求3所述的天线，其特征在于，所述天线振子臂沿所述基板的长度方向设置在所述基板的边缘。The antenna according to claim 3, wherein the antenna element arm is disposed at an edge of the substrate along a length direction of the substrate.
  6. 根据权利要求1所述的天线，其特征在于，所述第二天线地部沿所述基板的长度方向设置在所述基板上，且所述第二天线地部在所述基板上的投影面积大于或等于无人机的机臂内的电机线及灯板线在所述基板上的投影面积。The antenna according to claim 1, wherein the second antenna ground portion is disposed on the substrate along a length direction of the substrate, and a projection area of the second antenna ground portion on the substrate Greater than or equal to the projected area of the motor wires and lamp board wires in the arm of the drone on the substrate.
  7. 根据权利要求1所述的天线，其特征在于，所述基板为由FR-4等级 的材质制成的基板。The antenna according to claim 1, wherein the substrate is a substrate made of a FR-4 grade material.
  8. 根据权利要求1所述的天线，其特征在于，所述天线的工作频率为900MHz。The antenna according to claim 1, wherein an operating frequency of the antenna is 900 MHz.
  9. 根据权利要求1所述的天线，其特征在于，所述第一天线地部沿基板的长度小于所述馈电同轴线的长度。The antenna according to claim 1, wherein a length of the first antenna ground portion along the substrate is smaller than a length of the feeding coaxial line.
  10. 一种无人飞行器，其特征在于，包括机身、与所述机身连接的机臂以及如权利要求1～9任一项所述的天线；An unmanned aerial vehicle, comprising a fuselage, an arm connected to the fuselage, and an antenna according to any one of claims 1 to 9;
    其中，所述天线设置在所述机臂内。Wherein, the antenna is disposed in the machine arm.
PCT/CN2019/101612 2018-08-20 2019-08-20 Antenna and unmanned aerial vehicle WO2020038369A1 (en)

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