CN111029719A - Antenna and aircraft - Google Patents
Antenna and aircraft Download PDFInfo
- Publication number
- CN111029719A CN111029719A CN201911185074.6A CN201911185074A CN111029719A CN 111029719 A CN111029719 A CN 111029719A CN 201911185074 A CN201911185074 A CN 201911185074A CN 111029719 A CN111029719 A CN 111029719A
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- Prior art keywords
- antenna
- circuit board
- arm
- transmission line
- dipole arm
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000005855 radiation Effects 0.000 claims abstract description 44
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims description 31
- 238000010586 diagram Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/36—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like adapted to receive antennas or radomes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- 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
- H01Q1/48—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
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses an antenna and an aircraft, wherein the antenna comprises a substrate, a circuit board arranged on the substrate, a first radiation part arranged on one side of the substrate and a second radiation part arranged on the other side of the substrate; the first radiation part is provided with a feed point and is electrically connected with the circuit board through the feed point; the second radiation part is provided with a grounding point, and the second radiation part is electrically connected with the circuit board through the grounding point. The invention designs the circuit board and the antenna into a whole, simplifies the structure of the antenna, reduces the volume of the antenna and can realize the omnidirectional uniform radiation of the antenna.
Description
Technical Field
The invention relates to the field of communication, in particular to an antenna and an aircraft.
Background
At present, the antenna is the important component in the wireless communication field, and along with unmanned aerial vehicle's development, the large-size antenna occupation space is great, and the installation is inconvenient, and the antenna that unmanned aerial vehicle used needs to satisfy small, the characteristics of the even radiation of qxcomm technology.
Disclosure of Invention
In order to overcome the problem of large size of the antenna in the prior art, the invention aims to provide an antenna and an aircraft, so as to reduce the volume of the antenna and realize omnidirectional uniform radiation.
In order to achieve the above object, the present invention provides an antenna, including a substrate, a circuit board disposed on the substrate, a first radiation portion disposed on one side of the substrate, and a second radiation portion disposed on the other side of the substrate; the first radiation part is provided with a feed point and is electrically connected with the circuit board through the feed point; the second radiation part is provided with a grounding point, and the second radiation part is electrically connected with the circuit board through the grounding point.
Further, the first radiating part comprises a first transmission line, a first connecting arm, a first oscillator arm and a second oscillator arm, wherein the middle part of the first connecting arm is connected to the first transmission line and is far away from one end of the circuit board, the first oscillator arm is connected to one end of the first connecting arm and extends towards one side of the circuit board, the second oscillator arm is connected to the other end of the first connecting arm and extends towards one side of the circuit board, and the feeding point is arranged on the first transmission line.
Furthermore, the first transmission line comprises an extension part and a feeding part connected with the extension part, the feeding point is arranged at one end, far away from the extension part, of the feeding part, and one end, far away from the extension part, of the feeding part is in a tip shape.
Further, the first oscillator arm and the second oscillator arm are symmetrically disposed about the first transmission line.
Furthermore, the distance between the first oscillator arm and the circuit board is 1/16-1 of the resonant wavelength of the antenna, and the distance between the second oscillator arm and the circuit board is 1/16-1 of the resonant wavelength of the antenna.
Furthermore, the second radiating portion includes a second transmission line, a second connecting arm connected to the second transmission line at a middle portion thereof and far from one end of the circuit board, a third dipole arm connected to one end of the second connecting arm and extending toward a side far from the circuit board, and a fourth dipole arm connected to the other end of the second connecting arm and extending toward a side far from the circuit board, and the grounding point is disposed on the second transmission line.
Further, the second radiating portion further includes a fifth oscillator arm connected to the third oscillator arm, the fifth oscillator arm being away from the second connecting arm and extending toward one side of the fourth oscillator arm, and a sixth oscillator arm connected to the fourth oscillator arm, the sixth oscillator arm being away from the second connecting arm and extending toward one side of the third oscillator arm.
Further, the third oscillator arm and the fourth oscillator arm are symmetrically arranged with respect to a straight line where a midpoint of the grounding point and a midpoint of the second connecting arm are located.
Furthermore, the antenna also comprises a first shielding plate arranged on one side of the circuit board and a second shielding plate arranged on the other side of the circuit board.
The invention further provides an aircraft which comprises a fuselage, an undercarriage arranged below the fuselage and the antenna, wherein the antenna is arranged in the undercarriage.
Compared with the prior art, the invention has the beneficial effects that: the circuit board is arranged on the substrate, the first radiation part and the second radiation part are respectively arranged on two sides of the substrate, the first radiation part is electrically connected with the circuit board through the feed point, the second radiation part is electrically connected with the circuit board through the grounding point, the circuit board and the antenna are integrally designed, the antenna structure is simplified, the size of the antenna is reduced, and the omnidirectional uniform radiation of the antenna can be realized.
Drawings
Fig. 1 is a schematic front structural diagram of an antenna according to an embodiment of the present invention;
fig. 2 is a schematic back structure diagram of an antenna according to a first embodiment of the present invention;
fig. 3 is a schematic back structure diagram of an antenna according to a first embodiment of the present invention;
fig. 4 is a schematic back structure diagram of an antenna according to a second embodiment of the present invention;
fig. 5 is a schematic rear view of an antenna according to a third embodiment of the present invention;
fig. 6 is an S parameter diagram of an antenna according to an embodiment of the present invention;
fig. 7 is a directional diagram of an antenna provided by an embodiment of the present invention;
fig. 8 is a schematic view of an aircraft provided by an embodiment of the invention.
In the figure: 10. an antenna; 1. a substrate; 2. a circuit board; 3. a first radiation section; 31. a feed point; 32. a first transmission line; 321. an extension portion; 322. a feeding section; 33. a first connecting arm; 34. a first vibrator arm; 35. a second vibrator arm; 4. a second radiation section; 41. a ground point; 42. a second transmission line; 43. a second connecting arm; 44. a third vibrator arm; 45. a fourth vibrator arm; 46. a fifth vibrator arm; 47. a sixth vibrator arm; 48. a radiation sheet; 5. a first shield plate; 6. a second shielding plate; 20. a body; 30. a landing gear.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1-2, an antenna 10 provided in an embodiment of the present invention includes a substrate 1, a circuit board 2 disposed on the substrate 1, a first radiation portion 3 disposed on one side of the substrate 1, and a second radiation portion 4 disposed on the other side of the substrate 1; a feeding point 31 is arranged on the first radiation part 3, and the first radiation part 3 is electrically connected with the circuit board 2 through the feeding point 31; the second radiation portion 4 is provided with a grounding point 41, and the second radiation portion 4 is electrically connected to the circuit board 2 through the grounding point 41. The circuit board 2, the first radiation part 3 and the second radiation part 4 are integrally designed, so that the structure of the antenna 10 is simplified, the size of the antenna 10 is reduced, and omnidirectional uniform radiation of the antenna can be realized.
As shown in fig. 1, the first radiating portion 3 includes a first transmission line 32, a first connecting arm 33 connected to an end of the first transmission line 32, the middle of which is far from the circuit board 2, a first dipole arm 34 connected to an end of the first connecting arm 33 and extending toward one side of the circuit board 2, and a second dipole arm 35 connected to the other end of the first connecting arm 33 and extending toward one side of the circuit board 2, and the feeding point 31 is disposed on the first transmission line 32. Preferably, the first transmission line 32 includes an extending portion 321 and a feeding portion 322 connected to the extending portion 321, the feeding point 31 is disposed at an end of the feeding portion 322 away from the extending portion 321, and an end of the feeding portion 322 away from the extending portion 321 is pointed. Specifically, the feeding point 31 is provided at a tip end of the feeding section 322, and the tip end of the feeding section 322 is electrically connected to the circuit board 2 to realize feeding.
In one embodiment, the first transmission line 32 is disposed at a center line position of the substrate 1, and the first and second vibrator arms 34 and 35 are symmetrically disposed about the first transmission line 32. The first vibrator arm 34 and the second vibrator arm 35 are 1/8-3/4 of the resonance wavelength of the antenna. The distance between the first vibrator arm 34 and the circuit board 2 is 1/16-1 of the resonance wavelength of the antenna, and the distance between the second vibrator arm 35 and the circuit board 2 is 1/16-1 of the resonance wavelength of the antenna.
As shown in fig. 2, in the first embodiment, the second radiating portion 4 includes a second transmission line 42, a second connecting arm 43 connected to the second transmission line 42 at a middle portion thereof at an end away from the circuit board 2, a third oscillator arm 44 connected to an end of the second connecting arm 43 and extending toward a side away from the circuit board 2, and a fourth oscillator arm 45 connected to the other end of the second connecting arm 43 and extending toward a side away from the circuit board 2, and the ground point 41 is provided on the second transmission line 42. Specifically, the grounding point 41 is disposed at an end of the second transmission line 42 away from the second connection arm 43, and an end of the second transmission line 42 is soldered to the circuit board 2. In one embodiment, the second connecting arm 43 and the first connecting arm 33 are respectively disposed at both sides of the substrate 1 and symmetrically disposed about the substrate 1. In another embodiment, the widths of the second connecting arm 43 and the first connecting arm 33 may also be different.
In one embodiment, the second radiating section 4 further includes a fifth vibrator arm 46 connected to an end of the third vibrator arm 44 remote from the second connecting arm 43 and extending toward a side of the fourth vibrator arm 45, and a sixth vibrator arm 47 connected to an end of the fourth vibrator arm 45 remote from the second connecting arm 43 and extending toward a side of the third vibrator arm 44, the fifth vibrator arm 46 and the sixth vibrator arm 47 being disposed symmetrically with respect to a line where a midpoint of the ground point 41 and a midpoint of the second connecting arm 43 are located.
In one embodiment, the third and fourth dipole arms 44 and 45 are symmetrically arranged about a line where the midpoint of the grounding point 41 and the midpoint of the second connecting arm 43 are located. The third dipole arm 44 and the fourth dipole arm 45 are 1/8-3/4 of the resonance wavelength of the antenna.
As shown in fig. 3, in the second embodiment, the second radiating portion 4 includes a second transmission line 42 and a radiating strip 48 connected to an end of the second transmission line 42 remote from the circuit board 2. As shown in fig. 3, in the first embodiment, the radiation sheet 48 has a rectangular shape. As shown in fig. 4, in the second embodiment, the radiation sheet 48 has a trapezoidal shape. As shown in fig. 5, in the third embodiment, the shape of the radiation sheet 48 is an ellipse.
Preferably, the antenna 10 further includes a first shielding plate 5 disposed on one side of the circuit board 2 and a second shielding plate 6 disposed on the other side of the circuit board 2, so as to effectively reduce signal interference between the antenna 10 and other circuit modules.
As shown in fig. 6, which is an S parameter diagram of the antenna 10, it can be seen that the antenna can achieve omnidirectional coverage at 5.5GHz, and the maximum value of the antenna radiation direction is in the horizontal direction.
As shown in fig. 7, the directional pattern of the antenna at 5.5GHz, it can be seen that the antenna achieves omnidirectional coverage at 5.5 GHz.
As shown in fig. 8, the embodiment of the present invention provides an aircraft, which includes a fuselage 20, landing gear 30 disposed below the fuselage 20, and the antenna 10 described above, wherein the antenna 10 is disposed in the landing gear 30. In which the antenna 10 is placed perpendicular to the body 20.
In this embodiment, the bottom view of the aircraft is taken as an illustrative example to show the installation position of the antenna 10, the installation position of the antenna 10 in this embodiment is not limited to the installation position shown in fig. 8, and other installation positions of the antenna 10 that can better satisfy signal transceiving may be used.
The provision of the antenna 10 in the landing gear 30 of the aircraft widens the bandwidth of the antenna 10 in the pitch plane, so that the signal remains stable when the antenna is tilted. Therefore, the influence of the flight posture of the aircraft on communication is reduced in the flight process of the aircraft, and the communication of the aircraft in the flight process is guaranteed.
According to the antenna 10 and the aircraft provided by the embodiment of the invention, the circuit board 2 is arranged on the substrate 1, the first radiation part 3 and the second radiation part 4 are respectively arranged on two sides of the substrate 1, the first radiation part 3 is electrically connected with the circuit board 2 through the feeding point 31, and the second radiation part 4 is electrically connected with the circuit board 2 through the grounding point 41, so that the circuit board 2 and the antenna 10 are integrally designed, the antenna structure is simplified, the antenna volume is reduced, and the omnidirectional uniform radiation of the antenna can be realized.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. An antenna is characterized by comprising a substrate, a circuit board arranged on the substrate, a first radiation part arranged on one side of the substrate and a second radiation part arranged on the other side of the substrate; the first radiation part is provided with a feed point and is electrically connected with the circuit board through the feed point; the second radiation part is provided with a grounding point, and the second radiation part is electrically connected with the circuit board through the grounding point.
2. The antenna of claim 1, wherein the first radiating portion includes a first transmission line, a first connecting arm connected to the first transmission line at a middle portion thereof at an end away from the circuit board, a first dipole arm connected to an end of the first connecting arm and extending toward one side of the circuit board, and a second dipole arm connected to the other end of the first connecting arm and extending toward one side of the circuit board, and the feeding point is disposed on the first transmission line.
3. The antenna of claim 2, wherein the first transmission line comprises an extension portion and a feeding portion connected to the extension portion, the feeding point is disposed at an end of the feeding portion away from the extension portion, and an end of the feeding portion away from the extension portion is pointed.
4. The antenna of claim 2, wherein the first dipole arm and the second dipole arm are symmetrically disposed about the first transmission line.
5. The antenna of claim 2, wherein the distance between the first dipole arm and the circuit board is 1/16-1 of the resonant wavelength of the antenna, and the distance between the second dipole arm and the circuit board is 1/16-1 of the resonant wavelength of the antenna.
6. The antenna according to claim 1, wherein the second radiating portion includes a second transmission line, a second connecting arm having a middle portion connected to an end of the second transmission line away from the circuit board, a third dipole arm connected to an end of the second connecting arm and extending toward a side away from the circuit board, and a fourth dipole arm connected to another end of the second connecting arm and extending toward a side away from the circuit board, and the grounding point is disposed on the second transmission line.
7. The antenna according to claim 6, wherein the second radiating portion further includes a fifth dipole arm connected to an end of the third dipole arm remote from the second connecting arm and extending toward a side of the fourth dipole arm, and a sixth dipole arm connected to an end of the fourth dipole arm remote from the second connecting arm and extending toward a side of the third dipole arm.
8. The antenna according to claim 6, wherein the third dipole arm and the fourth dipole arm are symmetrically disposed with respect to a straight line where a midpoint of the ground point and a midpoint of the second connection arm are located.
9. The antenna of any one of claims 1-8, further comprising a first shield plate disposed on one side of the circuit board and a second shield plate disposed on the other side of the circuit board.
10. An aircraft comprising a fuselage, landing gear provided beneath the fuselage, and an antenna according to any of claims 1 to 9 provided in the landing gear.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911185074.6A CN111029719A (en) | 2019-11-27 | 2019-11-27 | Antenna and aircraft |
| PCT/CN2020/127932 WO2021104012A1 (en) | 2019-11-27 | 2020-11-11 | Antenna and aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911185074.6A CN111029719A (en) | 2019-11-27 | 2019-11-27 | Antenna and aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111029719A true CN111029719A (en) | 2020-04-17 |
Family
ID=70207213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911185074.6A Pending CN111029719A (en) | 2019-11-27 | 2019-11-27 | Antenna and aircraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111029719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021104012A1 (en) * | 2019-11-27 | 2021-06-03 | 深圳市道通智能航空技术股份有限公司 | Antenna and aircraft |
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| EP2924532A2 (en) * | 2014-03-28 | 2015-09-30 | Google, Inc. | Environmental control system retrofittable with multiple types of boiler-based heating systems |
| CN106785368A (en) * | 2016-12-26 | 2017-05-31 | 广东中元创新科技有限公司 | A kind of many valve high-gain UV omnidirectionals band AM antennas |
| CN207490099U (en) * | 2017-09-28 | 2018-06-12 | 普联技术有限公司 | Multi-layer compact antenna and communication apparatus |
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| CN109473787A (en) * | 2018-12-11 | 2019-03-15 | 汽-大众汽车有限公司 | A kind of shark fins antenna module |
| CN211428332U (en) * | 2019-11-27 | 2020-09-04 | 深圳市道通智能航空技术有限公司 | Antenna and aircraft |
-
2019
- 2019-11-27 CN CN201911185074.6A patent/CN111029719A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014143320A2 (en) * | 2012-12-21 | 2014-09-18 | Drexel University | Wide band reconfigurable planar antenna with omnidirectional and directional patterns |
| EP2924532A2 (en) * | 2014-03-28 | 2015-09-30 | Google, Inc. | Environmental control system retrofittable with multiple types of boiler-based heating systems |
| CN106785368A (en) * | 2016-12-26 | 2017-05-31 | 广东中元创新科技有限公司 | A kind of many valve high-gain UV omnidirectionals band AM antennas |
| CN108513687A (en) * | 2017-05-22 | 2018-09-07 | 深圳市大疆创新科技有限公司 | The signal handling equipment of antenna and unmanned plane |
| CN207490099U (en) * | 2017-09-28 | 2018-06-12 | 普联技术有限公司 | Multi-layer compact antenna and communication apparatus |
| CN108199135A (en) * | 2018-01-11 | 2018-06-22 | 中南大学 | OAM radio wave generation devices |
| CN108565539A (en) * | 2018-05-30 | 2018-09-21 | 深圳市道通智能航空技术有限公司 | Antenna and unmanned vehicle |
| CN109473787A (en) * | 2018-12-11 | 2019-03-15 | 汽-大众汽车有限公司 | A kind of shark fins antenna module |
| CN211428332U (en) * | 2019-11-27 | 2020-09-04 | 深圳市道通智能航空技术有限公司 | Antenna and aircraft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021104012A1 (en) * | 2019-11-27 | 2021-06-03 | 深圳市道通智能航空技术股份有限公司 | Antenna and aircraft |
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