CN206364196U - Unmanned plane antenna and unmanned plane - Google Patents
Unmanned plane antenna and unmanned plane Download PDFInfo
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- CN206364196U CN206364196U CN201621466176.7U CN201621466176U CN206364196U CN 206364196 U CN206364196 U CN 206364196U CN 201621466176 U CN201621466176 U CN 201621466176U CN 206364196 U CN206364196 U CN 206364196U
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- antenna
- array antenna
- unmanned plane
- array
- dipole
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a kind of unmanned plane antenna, including：The first array antenna and the second array antenna arranged each other in parallel interval；First array antenna is two-way end-on-fire antenna, and second array antenna is omnidirectional's broadside antenna, and omnidirectional's space covering is realized under the collective effect of first array antenna and second array antenna.The utility model also provides a kind of unmanned plane.By above-mentioned embodiment, it has the advantages that to be easily worked, easily conformal, low section miniaturization, omnidirectional's performance be good, high-gain, be adapted to unmanned plane figure pass and remote control application.
Description
Technical field
The utility model is related to UAV Communication applied technical field, more particularly to a kind of unmanned plane antenna and unmanned plane.
Background technology
Unmanned plane figure is passed and remote control is a kind of radiotechnics of information transfer.Passed in figure with remote control system, distance is got over
Far, then signal is weaker, constrains the transmission range of radio communications system, raising figure is passed and the current conventional method of remote control distance is
Plus power amplifier, LNA and raising antenna gain.Antenna is as the basic element of character of radio system, and it is radiation and receives radio
Ripple provides means, and its performance is good and bad, signal transmitting and the effect received is directly affected, to unmanned plane FPV（First Person
View, first person main perspective）Development and application have extremely important meaning.
The structure of present consumer level unmanned plane antenna early stage is the dipole structure of copper pipe type, afterwards as frequency will
Ask, polarize requirement and use requirement, coordinate different feed-in modes and derive various different designs structures, such as plane
The dipole and folded dipole of PCB forms, clover, bunge bedstraw herb clover structure circular polarized antenna.
But current methods used has many deficiencies, one is that antenna gain is not high enough, typically just 2dBi, or gain
Though it is high but directionality is too strong, both influence communication distance and reception；Two conformal, the meetings that are that the antenna structure having is not easy
Influence the characteristics, such as clover antenna such as the contour structures and aerodynamics of high-speed cruising carrier.
Therefore, how to use new technology while realizing that unmanned plane antenna is conformal, the other performance for taking into account antenna refers to
Mark, such as efficiency, gain, polarization, as the difficult point studied at present.
Utility model content
The utility model provides a kind of unmanned plane antenna and unmanned plane to solve above-mentioned technical problem, and it, which has, easily adds
The advantages of work, easy conformal, low section miniaturization, good omnidirectional's performance, high-gain, it is adapted to the application of unmanned plane figure biography and remote control.
In order to solve the above technical problems, the utility model provides a kind of unmanned plane antenna, including：It is in parallel each other
Every the first array antenna and the second array antenna of arrangement；First array antenna is two-way end-on-fire antenna, described second gust
Array antenna is omnidirectional's broadside antenna, and omnidirectional is realized under the collective effect of first array antenna and second array antenna
Space is covered.
Further, first array antenna and second array antenna include rectangular dielectric-slab, phase respectively
The feeder line that should be arranged on the dielectric-slab and it is corresponding along the dielectric-slab length direction spaced set in being given an account of
The multiple antenna elements fed on scutum and by the feeder line.
Further, in first array antenna, the feeder line be adjacent antenna units between enter row amplitude phase
Deng and for 180 ° of anti-phase phase shifts of equal difference feed；In second array antenna, the feeder line be adjacent antenna units it
Between enter that row amplitude is equal, phase identical feed.
Further, the antenna element in first array antenna is dipole antenna unit, the adjacent dipole
The two-arm dislocation of antenna element；Antenna element in second array antenna is dipole antenna unit, the same dipole
The two-arm of sub-antenna unit is respectively arranged at the tow sides of the dielectric-slab.
Further, the quantity of the antenna element in first array antenna is 2n, in second array antenna
The quantity of antenna element be 2m, n and m be 1~10 integer；In first array antenna between adjacent antenna units between
Away from d=0.5 λ0, the λ of spacing d in second array antenna between adjacent antenna units=0.80, λ0For free space wavelength；Institute
State feeder line and antenna element printing is formed on the dielectric-slab；First array antenna and second array
Dielectric-slab in antenna is polyfluortetraethylene plate or FR-4 plates or Rogers's microwave sheet material.
Further, first array antenna and feeder line and antenna element in second array antenna print
Brush is formed on dielectric-slab；Feeder line in first array antenna and second array antenna is co-planar waveguide, band
Shape line or microstrip line.
Further, each antenna element in first array antenna and second array antenna, is adopted in high band
With monopole antenna, and dipole antenna is used in low-frequency range；Wherein, the monopole antenna is inverted f or inverted l antenna, described
Dipole antenna is spiral dipole, slot antenna, bending printed dipole or folded dipole.
Further, first array antenna and second array antenna are inputted to single port using power splitter combining
The emitter of radio frequency interface, or the hair of dual-port, three ports or four port radio frequency interfaces is connected to using coaxial feeder alone
Penetrate machine.
Further, the working frequency range of the unmanned plane antenna is 2.4GHz, or 5.8GHz；Or 3.5GHz；Or
433MHz, either 900MHz or 1.2GHz；Either 840.5-845MHz or 1430-1444MHz, or 2408-
The legal frequency range for unmanned plane in 2440MHz.
In order to solve the above technical problems, the utility model also provides a kind of unmanned plane, including any one embodiment as described above
Described unmanned plane antenna, in addition to the undercarriage that two parallel intervals are set, the undercarriage is in a tubular form to be used as antenna house
Use；First array antenna of the unmanned plane antenna is accommodating to be fixed on described in one in undercarriage, and the of the unmanned plane antenna
Two array antennas are accommodating to be fixed in another undercarriage；First array antenna is two-way end-on-fire antenna, described second
Array antenna is omnidirectional's broadside antenna, is realized under the collective effect of first array antenna and second array antenna complete
Covered to space.
Unmanned plane antenna and unmanned plane of the present utility model, have the advantages that：
（1）By setting what parallel interval arranged to penetrate as the first array antenna of two-way end-on-fire antenna and as omnidirectional side
Second array antenna of antenna, the covering of omnidirectional space can be realized jointly, its have be easily worked, low section miniaturization, omnidirectional
Performance is good, the advantage of high-gain, is adapted to unmanned plane figure and passes and remote control；
（2）It is fixed on by the way that the first array antenna and the second array antenna are housed in the undercarriage of unmanned plane, can be with rising
Fall frame carry out it is conformal, conformability is preferable.
Brief description of the drawings
Fig. 1 be the utility model embodiment unmanned plane in undercarriage structural representation.
Fig. 2 is the positive structural representation of the first array antenna of the utility model embodiment.
Fig. 3 is the structural representation of the first array antenna reverse side of the utility model embodiment.
Fig. 4 is the structural representation of the second array antenna positive and negative of the utility model embodiment.
Fig. 5 is the first array antenna end-fire E faces directional diagram of the utility model embodiment.
Fig. 6 is the first array antenna end-fire H faces directional diagram of the utility model embodiment.
Fig. 7 is that E faces directional diagram is penetrated on the second array antenna side of the utility model embodiment.
Fig. 8 is the side structure schematic view of the first array antenna of another embodiment of the utility model.
Embodiment
The utility model is described in detail with embodiment below in conjunction with the accompanying drawings.
Referred to reference to Fig. 1-Fig. 4, the utility model provides a kind of unmanned plane, the unmanned plane is parallel including at least two
Spaced undercarriage 1,2, undercarriage 1,2 as antenna house in a tubular form to use；Housed in one undercarriage 1 and fix first
Housed in array antenna 3, another undercarriage 2 and fix the second array antenna 4.Thus the first array antenna 3 and the second array antenna 4
It is parallel to each other and is intervally arranged, realization is conformal with undercarriage in unmanned plane 1,2, realizes horizontal and vertical polarization, and reduce production
Cost.Wherein, the first array antenna 3 is two-way end-on-fire antenna, and the second array antenna 4 is omnidirectional's broadside antenna, realizes antenna side
To the end-fire and edge-emitted type function of figure, to realize omnidirectional under the collective effect of the first array antenna 3 and the second array antenna 4
Space is covered, i.e. 360 ° of space covering up and down all around.The array antenna 4 of first array antenna 3 and second is high increasing
Beneficial antenna, both directional diagrams are different.
Wherein, coaxial feeder is drawn from the middle part of the undercarriage 1,2 as antenna house or two ends, is connected to the radio frequency of unmanned plane
Module, antenna keeps a segment distance from unmanned aerial vehicle (UAV) control circuit main board, to avoid unmanned plane structure as far as possible to the shadow of antenna performance
Ring, and simplify the complicated shortcoming of multiport feed system cabling, saved cost.
In addition, the distributing point of the array antenna 4 of the first array antenna 3 and second can not be center of antenna, but according to
Coaxial feeder is convenient to be selected along undercarriage 1,2 supporter cablings, and both can be symmetric array or asymmetric array.
Specifically, the first array antenna 3 include dielectric-slab 31, be arranged on the dielectric-slab 31 feeder line 33, with
And along the length direction spaced set of dielectric-slab 31 on dielectric-slab 31 simultaneously and multiple antenna lists for being fed by feeder line 33
Member 32.Second array antenna 4 also includes dielectric-slab 41, the feeder line 43 that is arranged on the dielectric-slab 41 and along dielectric-slab
41 length direction spaced sets are on dielectric-slab 41 simultaneously and multiple antenna elements 42 for being fed by feeder line 43.
Preferably, the quantity of the antenna element 32 in the first array antenna 3 is the antenna list in 2n, the second array antenna 4
Member 42 quantity for 2m, n and m be 1~10 integer.The n and m can be the same or different.For example, such as Fig. 2~4
It is shown, n=3, m=2.
Further, the feeder line 33 in the first array antenna 3 be adjacent antenna units 32 between enter row amplitude it is equal,
And be the feed of 180 ° of anti-phase phase shifts of equal difference, and then realize end-on-fire antenna function.Wherein, as shown in Figures 2 and 3, this first gust
Antenna element 32 in array antenna 3 can be dipole antenna unit, and the two-arm of adjacent dipole unit misplaces to realize
180 ° of anti-phase phase shifts of equal difference.Feeder line 33 can carry out uniform feed of connecting for each antenna element 32.
Preferably, spacing d in the first array antenna 3 between adjacent antenna units 32=0.5 λ0, λ0For free space wavelength
(λ0I.e.=c/f).On dielectric-slab 31 feeder line 33 here away from phase shift be 360 °, so series feed line is accomplished that
Width is with mutually feeding, and the then two-arm dislocation of adjacent dipole unit realizes anti-phase 180 degree feed, finally makes antenna element a
~f phase is 540 ° respectively, 360 °, 180 °, 0 °, -180 °, -360 °, and equivalent is successively decreased 180 ° successively, meets end-fire antenna
Battle array condition, greatest irradiation direction is battle array direction of principal axis, realizes high-gain direction map combining before and after unmanned plane, this Antenna Construction Design work
When working frequency is 2.4GHz-2.5GHz, center frequency point 2.45GHz yield values can reach 7.9dBi, E faces direction and H faces direction
Figure such as Fig. 5 and Fig. 6, with it, the angles in undercarriage 1 can be horizontal polarization or vertical polarization to polarised direction.
Preferably, to reduce the lateral length of the first array antenna 3, and then the miniaturization of antenna is realized, can be in dipole
Loading capacitance on son, or dipole end can also be bent, certain two ways can be used in combination.
In addition, can be as shown in figure 8, antenna element 32 ' in the first array antenna 3 ' can use monopole antenna, its
In, feeder line is that amplitude is equal between adjacent antenna units 32 ' and progress of 180 ° of anti-phase phase shifts of equal difference are fed.The antenna
Unit 32 ' can use inverted l antenna as shown in Figure 8, and dielectric-slab 31 ' is as reflection floor, and feeder line is on dielectric-slab 31 '.
Further, in the second array antenna 4 feeder line 43 be adjacent antenna units 42 between enter row amplitude it is equal and
Phase identical is fed.Wherein, as shown in figure 4, the antenna element 42 in the second array antenna 4 can also be dipole antenna list
Member, the two-arm of same dipole antenna unit is respectively arranged at the tow sides of dielectric-slab 41.Feeder line 43 can be each day
Line unit 42 carries out uniform feed of connecting.
Preferably, spacing d in the second array antenna 4 between adjacent antenna units 42=0.8 λ0.Fed on dielectric-slab 41
Circuit 43 here away from phase shift be 360 °, so feeder line 43 be accomplished that with mutually feed, finally realize each antenna element g~
J be constant amplitude with phase, according to the theory of array antenna, greatest irradiation direction claims side in the both sides of array antenna axis, this kind of antenna
Penetrate linear (antenna) array, it is possible to achieve high-gain omnidirectional, realize unmanned plane high-gain direction map combining up and down, this antenna structure is set
When counting working frequency for 2.4GHz-2.5GHz, center frequency point 2.45GHz yield values reach 6.5dBi, E faces directional diagram such as Fig. 7, pendulum
Horizontal polarization is accomplished that when being placed on unmanned plane undercarriage 2.
In a preferred embodiment, in the first array antenna 3 feeder line 33 and the printing of antenna element 32 is formed at Jie
On scutum 31, feeder line 43 in the second array antenna 4 and the printing of antenna element 42 are formed on dielectric-slab 41, so can be with
Realize the miniaturization of antenna and integrated, electric property is also more excellent.It is of course also possible in the first array antenna 3 and second gust
In array antenna 4, only feeder line 33,43 is printed respectively and is formed on dielectric-slab 31,41, and antenna element 32,42 does not print
Brush is formed on dielectric-slab 41,41, but the cubic symmetry for using stainless steel, foreign copper-nickel alloy or Al-alloy metal conductor material to be made
Structure, such as inverse-F antenna and the dipole antenna configuration with balun, they pass through welding and the feeder line 33 printed, 43 phases
Even.Or, the feeder line 33,43 in the first array antenna 3 and the second array antenna 4 can be co-planar waveguide, strip line or
Microstrip line.
In a preferred embodiment, the dielectric-slab 31,41 in the first array antenna 3 and the second array antenna 4 may each be
High-k, low-loss insulation medium board, citing such as polyfluortetraethylene plate or FR-4 plates or Rogers（Rogers）Microwave
Sheet material.Bigger according to identical frequency dielectric constant, the smaller principle of wavelength, the volume of antenna can obtain further diminution, enter
And realize the miniaturization of antenna.
In a preferred embodiment, each antenna element 32,42 in the first array antenna 3 and the second array antenna 4, in height
Frequency range uses monopole antenna, and uses dipole antenna in low-frequency range.Wherein, monopole antenna is inverted f or inverted l antenna, idol
Pole sub-antenna is slot antenna, spiral dipole, bending printed dipole or folded dipole.
First array antenna 3 and the second array antenna 4 are inputted to the transmitting of single port radio frequency interface using power splitter combining
Machine, or the emitter of dual-port, three ports or four port radio frequency interfaces is connected to using coaxial feeder alone.
In a preferred embodiment, metallic reflection can be installed additional in the top of the first array antenna 3 and the second array antenna 4
Plate, the metallic reflection plate can be specifically installed on undercarriage 1,2 so that electromagnetic energy try one's best not heavenwards radiation, control day
Line directional diagram, improves gain.
When first array antenna 3 and the second array antenna 4 are only one, the unmanned plane Antenna Operation under single frequency mode,
It is sufficient for UAV Communication demand.And in a preferred embodiment, the first array antenna 3 and the second array antenna 4 are by multiple
After system, and original antenna has four altogether to constitute square frame, optimizes polarised direction to improve isolation between each antenna,
The diversity of four antennas is realized, more preferably realizes that omnidirectional covers.And it is similar to replicate postrotational antenna structure, but work in it
Its UAV Communication frequency range, is 5.8GHz（Suitable for WIFI）；Or 3.5GHz（Suitable for WiMAX）；Or 433MHz,
1.2GHz、900MHz（Suitable for ISM）, or 840.5-845MHz, 1430-1444MHz（Suitable for the legal of other unmanned planes
Frequency range）, and then realize the conformal diversity of double frequency of antenna.
In above-described embodiment, the working frequency range of unmanned plane antenna can be 2.4GHz or 5.8GHz（Suitable for WIFI）, or
Person 3.5GHz（Suitable for WiMAX）, or 433MHz, 900MHz, 1.2GHz（Suitable for ISM）；Or 840.5-845MHz,
1430-1444MHz、2408-2440MHz（Suitable for the legal frequency range of other unmanned planes）.
In one embodiment, the working frequency range of the first array antenna 3 and the second array antenna 4 can be disposed as
2.4Ghz, 328mm × 32mm × 1mm, 310mm × 9mm × 1mm is respectively set to by its size.
In above-described embodiment, unmanned plane generally can be multi-rotor unmanned aerial vehicle.
The utility model also provides a kind of unmanned plane antenna, and the description for the unmanned plane antenna is specifically referred to above,
No longer repeat one by one herein.
Unmanned plane antenna and unmanned plane of the present utility model, have the advantages that：
（1）By set parallel interval arrange as the first array antenna 3 of two-way end-on-fire antenna and as omnidirectional side
Penetrate the second array antenna 4 of antenna, the covering of omnidirectional space can be realized jointly, its have be easily worked, it is low section miniaturization, complete
To performance is good, high-gain advantage, it is adapted to unmanned plane figure and passes and remote control；
（2）It is fixed on by the way that the first array antenna 3 and the second array antenna 4 are housed in the undercarriage 1,2 of unmanned plane, can
Conformal with the progress of undercarriage 1,2, conformability is preferable.
Embodiment of the present utility model is these are only, the scope of the claims of the present utility model, every profit is not thereby limited
The equivalent structure or equivalent flow conversion made with the utility model specification and accompanying drawing content, or directly or indirectly it is used in it
The technical field of his correlation, is similarly included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of unmanned plane antenna, it is characterised in that including：
The first array antenna and the second array antenna arranged each other in parallel interval；
First array antenna is two-way end-on-fire antenna, and second array antenna is omnidirectional's broadside antenna, described first
Omnidirectional's space covering is realized under the collective effect of array antenna and second array antenna.
2. unmanned plane antenna according to claim 1, it is characterised in that：
First array antenna and second array antenna include rectangular dielectric-slab, relative set in being given an account of respectively
Feeder line on scutum and it is corresponding along the dielectric-slab length direction spaced set on the dielectric-slab and by described
Multiple antenna elements of feeder line feed.
3. unmanned plane antenna according to claim 2, it is characterised in that：
In first array antenna, the feeder line is that to enter row amplitude between adjacent antenna units equal and be equal difference
The feed of 180 ° of anti-phase phase shifts；In second array antenna, the feeder line be adjacent antenna units between enter row amplitude
Equal, phase identical feed.
4. unmanned plane antenna according to claim 3, it is characterised in that：
Antenna element in first array antenna is dipole antenna unit, the two-arm of the adjacent dipole antenna unit
Dislocation；
Antenna element in second array antenna is dipole antenna unit, the two-arm of the same dipole antenna unit
It is respectively arranged at the tow sides of the dielectric-slab.
5. unmanned plane antenna according to claim 2, it is characterised in that：
The quantity of antenna element in first array antenna is 2n, the quantity of the antenna element in second array antenna
It is 1~10 integer for 2m, n and m；
The λ of spacing d in first array antenna between adjacent antenna units=0.50, adjacent antenna in second array antenna
The λ of spacing d between unit=0.80, λ0For free space wavelength；
The feeder line and antenna element printing are formed on the dielectric-slab；
Dielectric-slab in first array antenna and second array antenna is polyfluortetraethylene plate or FR-4 plates or sieve
This outstanding microwave sheet material.
6. unmanned plane antenna according to claim 2, it is characterised in that：
First array antenna and feeder line and antenna element in second array antenna print and are formed at medium
On plate；
Feeder line in first array antenna and second array antenna is co-planar waveguide, strip line or microstrip line.
7. unmanned plane antenna according to claim 2, it is characterised in that：
Each antenna element in first array antenna and second array antenna, monopole antenna is used in high band,
And use dipole antenna in low-frequency range；
Wherein, the monopole antenna is inverted f or inverted l antenna, and the dipole antenna is spiral dipole, slot antenna, curved
Roll over printed dipole or folded dipole.
8. unmanned plane antenna according to claim 2, it is characterised in that：
First array antenna and second array antenna are inputted to the hair of single port radio frequency interface using power splitter combining
Machine is penetrated, or is connected to the emitter of dual-port, three ports or four port radio frequency interfaces using coaxial feeder alone.
9. the unmanned plane antenna according to any one of claim 1~8, it is characterised in that：
The working frequency range of the unmanned plane antenna is 2.4GHz, or 5.8GHz；Or 3.5GHz；Either 433MHz or
900MHz, or 1.2GHz；Either being used in 840.5-845MHz or 1430-1444MHz, or 2408-2440MHz
The legal frequency range of unmanned plane.
10. a kind of unmanned plane, it is characterised in that including the unmanned plane antenna as described in any one of claim 1~9, in addition to
The undercarriage that two parallel intervals are set, the undercarriage as antenna house in a tubular form to use；
First array antenna of the unmanned plane antenna is accommodating to be fixed on described in one in undercarriage, and the second of the unmanned plane antenna
Array antenna is accommodating to be fixed in another undercarriage；
First array antenna is two-way end-on-fire antenna, and second array antenna is omnidirectional's broadside antenna, described first
Omnidirectional's space covering is realized under the collective effect of array antenna and second array antenna.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016200151966 | 2016-01-08 | ||
| CN201620015196 | 2016-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206364196U true CN206364196U (en) | 2017-07-28 |
Family
ID=59377443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621466176.7U Expired - Fee Related CN206364196U (en) | 2016-01-08 | 2016-12-29 | Unmanned plane antenna and unmanned plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206364196U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019134134A1 (en) * | 2018-01-05 | 2019-07-11 | 深圳市大疆创新科技有限公司 | Dipole antenna and unmanned aerial vehicle |
| CN110603685A (en) * | 2018-06-22 | 2019-12-20 | 深圳市大疆创新科技有限公司 | Unmanned vehicles and antenna thereof |
| WO2021212633A1 (en) * | 2020-04-23 | 2021-10-28 | 北京智芯微电子科技有限公司 | Unmanned aerial vehicle undercarriage, and unmanned aerial vehicle |
-
2016
- 2016-12-29 CN CN201621466176.7U patent/CN206364196U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019134134A1 (en) * | 2018-01-05 | 2019-07-11 | 深圳市大疆创新科技有限公司 | Dipole antenna and unmanned aerial vehicle |
| CN110603685A (en) * | 2018-06-22 | 2019-12-20 | 深圳市大疆创新科技有限公司 | Unmanned vehicles and antenna thereof |
| CN110603685B (en) * | 2018-06-22 | 2021-10-22 | 深圳市大疆创新科技有限公司 | Unmanned vehicles and antenna thereof |
| WO2021212633A1 (en) * | 2020-04-23 | 2021-10-28 | 北京智芯微电子科技有限公司 | Unmanned aerial vehicle undercarriage, and unmanned aerial vehicle |
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