CN108400437A - Compare airborne antenna before and after a kind of broad beam height - Google Patents
Compare airborne antenna before and after a kind of broad beam height Download PDFInfo
- Publication number
- CN108400437A CN108400437A CN201810210295.3A CN201810210295A CN108400437A CN 108400437 A CN108400437 A CN 108400437A CN 201810210295 A CN201810210295 A CN 201810210295A CN 108400437 A CN108400437 A CN 108400437A
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- CN
- China
- Prior art keywords
- printed board
- reflecting plate
- dipole
- antenna
- printed
- Prior art date
- 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.)
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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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
It is high front and back than airborne antenna that the invention discloses a kind of broad beams, it includes mounting seat（1）And printed board（2）, printed board（2）It is parallel to reflecting plate（3）It is arranged and is located at reflecting plate（3）Front side, printed board（2）On be provided with two groups of antenna elements, antenna element is by being printed on printed board（2）The dipole A of upper surface（4）Be printed on printed board（2）The dipole B of lower surface（5）Composition, dipole A（4）With dipole B（5）The width of coaxial feed, dipole is grading structure；The printed board（2）On be threaded with multiple screws（6）, screw（6）The end of thread be connected to reflecting plate（3）On, printed board（2）With reflecting plate（3）Between be provided with and be used to support printed board（2）Column（7）.The beneficial effects of the invention are as follows：Relative bandwidth 13%；Gain 5.5dBi, horizontal plane beam angle are more than 150 °, and vertical beamwidth is more than 40 °, and front and back ratio is more than 15dB.
Description
Technical field
It is front and back than antenna design techniques neck that the present invention relates to microelectric technique, microwave technology etc., especially broad beams and height
Airborne antenna is compared before and after especially a kind of broad beam height in domain.
Background technology
In airborne communication, in order to ensure that communication has preferable data transmission and information privacy, antenna that need to have wider band
It is wide；To improve airborne communication coverage area, generally requires broad beam antenna and covered；And airborne linear to day as metal
Can exist influences, therefore is also to be necessary than antenna before and after height.In traditional antenna, as slot antenna bandwidth one
As only 5%, Bandwidth-Constrained in practical applications；And paster antenna, vivaldi antenna beamwidths be generally all at 70 ° ~ 110 °,
Beam angle is restricted in airborne application；Electromagnetic horn, log-periodic antenna class section are higher, apply on airborne also by
To limitation.
Invention content
It is an object of the invention to overcome the prior art, a kind of relative bandwidth 13% is provided；Gain 5.5dBi, water
Collimated beam of sound width is more than 150 °, and vertical beamwidth is more than 40 °, and the front and back broad beam than being more than 15dB is high front and back than airborne
Antenna.
The purpose of the present invention is achieved through the following technical solutions：A kind of broad beam is high front and back than airborne antenna, it includes
Mounting seat and printed board are provided with reflecting plate at the top of the mounting seat, and reflecting plate is arranged perpendicular to mounting seat, printing
Plate is parallel to reflecting plate setting and on front side of reflecting plate, is provided with two groups of antenna elements in printed board, antenna element is by printing
Dipole A in printed board upper surface and the dipole B compositions for being printed on printed board lower surface, dipole A and dipole B are coaxial
The width of feed, dipole is grading structure；Multiple screws are threaded in the printed board, the end of thread of screw is connected to
The column for being used to support printed board is provided on reflecting plate, between printed board and reflecting plate, the left and right sides of the reflecting plate is all provided with
It is equipped with oblique reflection device, ladder gradual change reflector is additionally provided on front side of reflecting plate.
It is provided with boss at the top of the mounting seat.
The reflecting plate is set at the top of boss.
The present invention has the following advantages：
（1）Line unit of the present invention is by the dipole A that is printed on printed board upper surface and the dipole B for being printed on printed board lower surface
The width of composition, dipole A and dipole B coaxial feeds, dipole is grading structure, i.e., gradual change is used at antenna element feed
Structure carries out the bandwidth of operation that impedance transformation improves antenna.
（2）The present invention uses two antenna elements, is ensureing vertical beamwidth by way of antenna element group battle array
In the case of meeting index request, antenna element spacing is adjusted, controls vertical beamwidth to improve antenna gain, to carry
High antenna performance.
（3）The adjusting of printed board and reflection plate spacing：Move out of column, the elastic i.e. changeable printed board of adjusting screw and reflection
The distance between plate, further controlled level surface wave beam width and vertical beamwidth.
（4）Horizontal plane reflector designs：From antenna theory it is found that antenna floor is bigger to a certain extent, beam angle
It is narrower, it is front and back than better.And antenna bearingt surface wave beam width requires visual angle larger in the design, the present invention uses oblique reflection device,
It improves under the premise of ensureing broad beam and compares before and after antenna.
（5）Vertical plane reflector designs：The present invention is ensureing vertical beamwidth using kind of a ladder gradual change reflector
Under the premise of improve the front and back ratio of antenna.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is the vertical view of the present invention；
Fig. 4 is the right view of the present invention；
Fig. 5 is the front view of printed board；
Fig. 6 is the rearview of printed board；
Fig. 7 is the standing wave curve of the present invention；
Fig. 8 is the horizontal radiation pattern of 4.4GHz；
Fig. 9 is the horizontal radiation pattern of 4.7GHz；
Figure 10 is the horizontal radiation pattern of 5.0GHz；
Figure 11 is the elevation radiation patytern of 4.4GHz；
Figure 12 is the elevation radiation patytern of 4.7GHz；
Figure 13 is the elevation radiation patytern of 5.0GHz；
Figure 14 is gain curve figure；
In figure, 1- mounting seats, 2- printed boards, 3- reflecting plates, 4- dipoles A, 5- dipole B, 6- screw, 7- columns, 8- is oblique
Reflector, 9- ladder gradual change reflectors, 10- boss.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to as described below：
As shown in Fig. 1 ~ 6, a kind of broad beam is high front and back than airborne antenna, it includes mounting seat 1 and printed board 2, the installation
The top of pedestal 1 is provided with reflecting plate 3, and reflecting plate 3 is arranged perpendicular to mounting seat 1, and printed board 2 is parallel to the setting of reflecting plate 3
And two groups of antenna elements are provided on 3 front side of reflecting plate, printed board 2, antenna element is by being printed on 2 upper surface of printed board
Dipole A4 and the dipole B5 compositions for being printed on 2 lower surface of printed board, dipole A4 and dipole B5 coaxial feeds, dipole
Width be grading structure, i.e., at antenna element feed using grading structure carry out impedance transformation improve antenna bandwidth of operation.
Multiple screws 6 are threaded in the printed board 2, the end of thread of screw 6 is connected on reflecting plate 3, printed board 2
The column 7 for being used to support printed board 2 is provided between reflecting plate 3.The left and right sides of the reflecting plate 3 is both provided with oblique reflection device
8, it improves under the premise of ensureing broad beam and compares before and after antenna, the front side of the reflecting plate 3 is additionally provided with ladder gradual change reflection
Device 9 improves under the premise of ensureing vertical beamwidth and compares before and after antenna.
In the present embodiment, the top of the mounting seat 1 is provided with boss 10.The reflecting plate 3 is set to the top of boss 10
Portion.
The course of work of the present invention is as follows：When emitting signal：Radiofrequency signal is passed to antenna, day by TR components by feeder line
Radiofrequency signal is converted to electromagenetic wave radiation by line.The Research of Antenna Polarization is vertical polarization when this antenna is vertically-mounted；Horizontal surface wave
Beam width is more than 150 °, and pitching surface wave beam width is more than 40 °；The region installation antenna that can be covered according to actual needs in,
The offset of low-angle influences overall performance little when installation wider due to beam angle, to reduce in antenna practical application
Installation difficulty.
Using electromagnetic simulation software HFSS to being modeled, being emulated than airborne antenna before and after broad beam height, antenna is obtained
Gain, directional diagram and standing wave curve.
According to Fig. 7 it is concluded that：Return loss minimum value is within the scope of frequency range 4.4GHz ~ 5.0GHz of index request
14.6dB。
According to Fig. 8 ~ 10 it is concluded that：In frequency range 4.4GHz ~ 5.0GHz range inner horizontal beam angles of index request
More than 160 °；Front and back ratio is more than 19dB.
According to Figure 11 ~ 13 it is concluded that：The vertical beamwidth within the scope of frequency range 4.4GHz ~ 5.0GHz of index request
More than 49 °；Front and back ratio is more than 19dB.
According to Figure 14 it is concluded that：It is more than 6.2dBi in frequency range 4.4GHz ~ 5.0GHz gains of index request.
In conclusion than airborne antenna in work frequency before and after the broad beam that can be seen that the present invention by simulation result is high
With interior gain, beam angle, front and back preferable than overall targets such as standing waves, it is suitable for the high front and back application than airborne antenna of broad beam
Demand.
Claims (3)
1. comparing airborne antenna before and after a kind of broad beam height, it is characterised in that：It includes mounting seat（1）And printed board（2）, described
Mounting seat（1）Top be provided with reflecting plate（3）, reflecting plate（3）Perpendicular to mounting seat（1）Setting, printed board（2）It is parallel
In reflecting plate（3）It is arranged and is located at reflecting plate（3）Front side, printed board（2）On be provided with two groups of antenna elements, antenna element is by printing
It is formed on printed board（2）The dipole A of upper surface（4）Be printed on printed board（2）The dipole B of lower surface（5）Composition, dipole
A（4）With dipole B（5）The width of coaxial feed, dipole is grading structure；The printed board（2）On be threaded with it is multiple
Screw（6）, screw（6）The end of thread be connected to reflecting plate（3）On, printed board（2）With reflecting plate（3）Between be provided with for branch
Support printed board（2）Column（7）, the reflecting plate（3）Left and right sides be both provided with oblique reflection device（8）, reflecting plate（3）Front side
It is additionally provided with ladder gradual change reflector（9）.
2. comparing airborne antenna before and after a kind of broad beam height according to claim 1, it is characterised in that：The mounting seat
（1）Top be provided with boss（10）.
3. comparing airborne antenna before and after a kind of broad beam height according to claim 1, it is characterised in that：The reflecting plate（3）
It is set to boss（10）Top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810210295.3A CN108400437A (en) | 2018-03-14 | 2018-03-14 | Compare airborne antenna before and after a kind of broad beam height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810210295.3A CN108400437A (en) | 2018-03-14 | 2018-03-14 | Compare airborne antenna before and after a kind of broad beam height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108400437A true CN108400437A (en) | 2018-08-14 |
Family
ID=63092515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810210295.3A Pending CN108400437A (en) | 2018-03-14 | 2018-03-14 | Compare airborne antenna before and after a kind of broad beam height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108400437A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0889543A1 (en) * | 1997-06-30 | 1999-01-07 | Sony International (Europe) GmbH | Wide band printed dipole antenna for microwave and mm-wave applications |
| CN2796155Y (en) * | 2005-04-20 | 2006-07-12 | 西安海天天线科技股份有限公司 | Wide wave beam width horizontal polarized antenna |
| CN201478454U (en) * | 2009-08-19 | 2010-05-19 | 深圳市远望谷信息技术股份有限公司 | Dipole electronic label antenna |
| CN205303687U (en) * | 2016-01-12 | 2016-06-08 | 深圳国人通信股份有限公司 | M type reflecting plate base station antenna |
| CN206546882U (en) * | 2017-01-17 | 2017-10-10 | 广东通宇通讯股份有限公司 | Wideband dipole omnidirectional antenna |
| CN107579355A (en) * | 2017-08-15 | 2018-01-12 | 佛山市波谱达通信科技有限公司 | A kind of medium-sized double frequency vertical plane large angle spotlight antenna |
| CN208256901U (en) * | 2018-03-14 | 2018-12-18 | 成都泰格微波技术股份有限公司 | A kind of airborne antenna with wide wave beam and high front-to-rear ratio |
-
2018
- 2018-03-14 CN CN201810210295.3A patent/CN108400437A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0889543A1 (en) * | 1997-06-30 | 1999-01-07 | Sony International (Europe) GmbH | Wide band printed dipole antenna for microwave and mm-wave applications |
| CN2796155Y (en) * | 2005-04-20 | 2006-07-12 | 西安海天天线科技股份有限公司 | Wide wave beam width horizontal polarized antenna |
| CN201478454U (en) * | 2009-08-19 | 2010-05-19 | 深圳市远望谷信息技术股份有限公司 | Dipole electronic label antenna |
| CN205303687U (en) * | 2016-01-12 | 2016-06-08 | 深圳国人通信股份有限公司 | M type reflecting plate base station antenna |
| CN206546882U (en) * | 2017-01-17 | 2017-10-10 | 广东通宇通讯股份有限公司 | Wideband dipole omnidirectional antenna |
| CN107579355A (en) * | 2017-08-15 | 2018-01-12 | 佛山市波谱达通信科技有限公司 | A kind of medium-sized double frequency vertical plane large angle spotlight antenna |
| CN208256901U (en) * | 2018-03-14 | 2018-12-18 | 成都泰格微波技术股份有限公司 | A kind of airborne antenna with wide wave beam and high front-to-rear ratio |
Non-Patent Citations (1)
| Title |
|---|
| 秦冬梅;徐令彬;: "宽频带印刷振子型基站天线的设计", 测试技术学报, no. 06, pages 507 - 511 * |
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