CN106025490B - A kind of conformal antenna mounting framework - Google Patents
A kind of conformal antenna mounting framework Download PDFInfo
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- CN106025490B CN106025490B CN201610545235.8A CN201610545235A CN106025490B CN 106025490 B CN106025490 B CN 106025490B CN 201610545235 A CN201610545235 A CN 201610545235A CN 106025490 B CN106025490 B CN 106025490B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
Abstract
The invention discloses a kind of conformal antenna mounting frameworks, it includes first layer skeleton (1), second layer skeleton (2) and third layer skeleton (3), the first layer skeleton (1), second layer skeleton (2), third layer skeleton (3) is in same ellipsoid, and each layer of inclination angle is all different, the first layer skeleton (1), second layer skeleton (2) and ellipsoid are tangent, third layer skeleton (3) and the spherical surface tangent line of second layer skeleton (1) have tangent line angle a, first layer skeleton (1), second layer skeleton (2), mutiple antennas mounting hole (4) are offered on third layer skeleton (3), mutiple antennas support column (6) are provided on skeleton around antenna installing hole (4), the screw hole to fasten antenna is offered on antenna mounting column (6).The beneficial effects of the present invention are: it has the advantages that light weight, structural stability and good aerial radiation uniformity at low cost and excellent.
Description
Technical field
The present invention relates to conformal antenna technical field, especially a kind of conformal antenna mounting framework.
Background technique
The comprehensive radiation of hemisphere face can be achieved in conformal (ellipse) spherical antenna battle array.Have in numerous antenna systems not comparable
Quasi- advantage.It can be used for GCS Ground Communication System, airborne, vehicle-mounted communication in moving system, while can also apply to radar, positioning, navigation
Field.
There are many kinds of classes for conformal array antenna, there is taper battle array, spheric array, cylindrical array etc..It has Conventional planar antennas battle array
Characteristic, while also having many differences.
Planar array is very mature to be applied to multiple fields, but its scan angle is generally up to 60 ° or so.And spheric array can
To cover all around.This can play a role very well in Satellite Tracking, the fields such as communication.In the condition for reaching same wide angle of radiation
Under, conformal spheric array has very big advantage in terms of volume, power consumption, cost.But the design requirement of spheric array is very high.Relative to
Planar array, array element are unevenly distributed, and Directional Pattern Analysis becomes complicated.For large radius of curvature array to obtaining low pair
The directional diagram of valve, it is necessary to the position of each array element is distributed, so that all array elements can effectively be directed toward the direction of formulation.Simultaneously
Nonplanar array element radiation polarization is irregular, it is thus possible to cause cross polarization very high.
(ellipse) spherical structure difficulty in terms of processing is larger, and cost is very high, and design difficulty mainly has the following: 1,
Mutual Coupling Analysis between (ellipse) spherical surface conformal antenna element characteristics and unit is difficult, 2, conformal Pattern Synthesis of Antenna Array difficulty,
3, conformal array antenna polarizing control is difficult, and 4, Wave beam forming and control are complicated, 5, test (calibration) difficulty.
Our company overcomes above-mentioned difficult point, has devised a kind of completely new (ellipse) spheric array, and support the ellipsoid battle array
The carrier of antenna.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides that a kind of structural stability is good, easy for installation is total to
Shape antenna mounting framework.
The purpose of the present invention is achieved through the following technical solutions: a kind of conformal antenna mounting framework, it includes first layer
Skeleton, second layer skeleton and third layer skeleton, the first layer skeleton, second layer skeleton, third layer skeleton are same ellipse
In spherical surface, and each layer of inclination angle is all different, and the first layer skeleton, second layer skeleton and ellipsoid are tangent, third layer
The spherical surface tangent line of skeleton and second layer skeleton has tangent line angle a, the first layer skeleton, second layer skeleton, third layer bone
Mutiple antennas mounting hole is offered on frame, and mutiple antennas support column is provided on the skeleton around the antenna installing hole,
The screw hole to fasten antenna is offered on antenna mounting column.
It is uniformly provided with four antenna installing holes on the first layer skeleton, is uniformly opened up on the second layer skeleton
There are eight antenna installing holes, 11 antenna installing holes are uniformly provided on the third layer skeleton.
There are four antenna mounting columns for setting on skeleton around the antenna installing hole.
A positioning device mounting hole is also provided at the top of the first layer skeleton, around positioning device mounting hole
Positioning device positioning column there are four being also set up on skeleton to mounting and positioning device, and the top of first layer skeleton is dome knot
Structure.
The first layer skeleton and second layer skeleton connect on ring and the phase of second layer skeleton and third layer skeleton
It connects and offers lightening hole on ring.
Multiple equally distributed antenna holder mounting bases, antenna are provided on the lateral wall of the third layer skeleton bottom
Tapped through hole is offered in bracket mounting base.
The tangent line angle a is 10 °.
The invention has the following advantages that antenna mounting framework of the invention, is divided into three layers of skeleton, reality is offered on skeleton
23 antenna installing holes that existing antenna spherical surface is structured the formation, and there is different inclination angles between each layer of skeleton, so as to improve antenna
Gain flatness in uniformity, that is, scanning range of radiation, and skeleton uses thread hollow structure, that is, ensure that the performance of skeleton, again
Reduce the materials cost and weight of skeleton；First layer skeleton uses dome structure, thus ensure that antenna mounting framework by
Power uniformity, to improve the stability of antenna mounting framework.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention
In figure, 1- first layer skeleton, 2- second layer skeleton, 3- third layer skeleton, 4- antenna installing hole, 5- positioning device peace
Fill hole, 6- antenna mounting column, 7- antenna holder mounting base, 8- lightening hole, 9- positioning device positioning column.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, and protection scope of the present invention is not limited to as described below:
As shown in Figure 1, a kind of conformal antenna mounting framework, it includes first layer skeleton 1, second layer skeleton 2 and third layer
Skeleton 3, the first layer skeleton 1, second layer skeleton 2, third layer skeleton 3 are in same ellipsoid, and each layer is inclined
Angle is all different, and the first layer skeleton 1, second layer skeleton 2 and ellipsoid are tangent, third layer skeleton 3 and second layer skeleton 2
Spherical surface tangent line have tangent line angle a, it is preferred that tangent line angle a be 10 °, in this way, aerial radiation can be improved
Gain flatness in uniformity, that is, scanning range, in the actual process, first layer skeleton 1, second layer skeleton 2 and third layer bone
Frame 3 is not limited in ellipsoid, is also possible to spherical surface, the first layer skeleton 1, second layer skeleton 2, on third layer skeleton 3
Mutiple antennas mounting hole 4 is offered, is provided with mutiple antennas support column 6, day on the skeleton around the antenna installing hole 4
Offer the screw hole to fasten antenna on line support column 6, therefore first layer skeleton 1 of the invention, second layer skeleton 2,
The structure of three layers of skeleton 3 is extremely complex, and using traditional processing method, machining accuracy is not being met, and difficulty of processing
It is very big, therefore skeleton of the invention is all made of 3D processing technology and is process.
In the present embodiment, it is uniformly provided with four antenna installing holes 4 on the first layer skeleton 1, described second
Eight antenna installing holes 4 are uniformly provided on layer skeleton 2,11 antenna installations are uniformly provided on the third layer skeleton 3
Hole 4, therefore added up on first layer skeleton 1, second layer skeleton 2, third layer skeleton 3 and amount to 23 antennas, and 23 antennas, it is
The minimum unit number met the requirements, and this minimum unit number is to be with unit number, position etc. under the requirement of global index
Variable, cell spacing, ellipsoid size etc. are constraint condition, are carried out with genetic algorithm at point source directional diagram by element pattern is equivalent
Obtained from optimization, concrete thought is as follows:
First from system index, the index request reached needed for conformal antenna is decomposited.Then, from the index of antenna
It is required that the topological structure of antenna element characteristic needed for analysis and conformal antenna array.And then needed for being determined by optimization algorithm
Element pattern, then further to conformal array topology layout optimize.Aerial array works in S-band, band
Width is 10%, and scanning range is -75 ° to 75 ° of pitch angle, 0 ° -360 ° of azimuth.Gain of the aerial array in scanning range is wanted
Greater than 13dBi, gain flatness is less than 1dB.Aerial array can support double-circle polarization operating mode simultaneously, and its axis ratio is less than
3dB.Antenna should have while receive the ability of more than three satellite information simultaneously.
Obviously, for a Conformal Phased Array, should be limited in first it is certain spatially, herein we limit
Its fixed range is in hemisphere of the diameter less than 300mm.Simultaneously in order to save the cost of conformal phased array antenna, unit number and
Its position is the significant variable that we optimize.Its gain and gain flatness are very important optimization aim.Firstly, quasi-
A fixed antenna element directional diagram, there are two variables now: the position coordinates (x, y, z) of each unit and antenna element it is total
Number N.Each unit of array cannot intersect, and the radius that size is limited to hemisphere is necessarily less than R, that is to say, that each list
The coordinate control of member is within the scope of certain.In addition, in entire upper half airspace, the optimum results of antenna gain have to be larger than 13
DBi, and gain flatness is less than 1 dB.We optimize the distribution of unit and element number using genetic algorithm.
If this element pattern drafted is unable to the structure that optimization is met the requirements, the directional diagram of element antenna is adjusted,
One new directional diagram of selection re-starts optimization.After optimization aim reaches our requirements, we are according to the direction drafted
Figure goes to design the element pattern needed for us, this designed antenna element is arranged according to the topological structure of optimization,
Finally global analysis and optimization are carried out using full wave analysis software.
In the present embodiment, there are four antenna mounting column 6, antennas for setting on the skeleton around the antenna installing hole 4
The height of support column 6 can change, so as to change the pitching of antenna element by the height for changing antenna mounting column 6
Angle, to meet actual demand.
In the present embodiment, the top of the first layer skeleton 1 is also provided with a positioning device mounting hole 5, is positioning
Positioning device positioning column 9 there are four being also set up on skeleton around device mounting hole 5 to mounting and positioning device, positioning device
GPS positioning is used, and the top of first layer skeleton 1 uses dome structure, the moulding of the arch of vault formula of dome mechanism has surrounding
The characteristics of power transmission, the wall thickness of bracket can be thinned as far as possible on the basis of meeting identical stress in this way, to reduce antenna installation
The weight of skeleton.
In the present embodiment, the first layer skeleton 1 and second layer skeleton 2 connect on ring and second layer skeleton 2
With lightening hole 8, i.e. first layer skeleton 1, second layer skeleton 2 and third layer skeleton 3 are offered on the ring that connects of third layer skeleton 3
Using the empty design of thread, the weight of antenna mounting framework not only can be reduced, and also ensure antenna mounting framework by
Power uniformity, to improve the stability of antenna mounting framework.
In the present embodiment, multiple equally distributed antennas are provided on the lateral wall of 3 bottom of third layer skeleton
Bracket mounting base 7 offers tapped through hole in antenna holder mounting base 7, in order to the installation of antenna mounting framework.
Claims (7)
1. a kind of conformal antenna mounting framework, it is characterised in that: it includes first layer skeleton (1), second layer skeleton (2) and third
Layer skeleton (3), the first layer skeleton (1), second layer skeleton (2), third layer skeleton (3) in same ellipsoid, and
Each layer of inclination angle is all different, and the first layer skeleton (1), second layer skeleton (2) and ellipsoid are tangent, third layer skeleton
(3) with the spherical surface tangent line of second layer skeleton (2) have tangent line angle a, the first layer skeleton (1), second layer skeleton (2),
It offers on third layer skeleton (3) mutiple antennas mounting hole (4), is arranged on the skeleton around the antenna installing hole (4)
Have mutiple antennas support column (6), the screw hole to fasten antenna is offered on antenna mounting column (6).
2. a kind of conformal antenna mounting framework according to claim 1, it is characterised in that: the first layer skeleton (1)
On be uniformly provided with four antenna installing holes (4), be uniformly provided with eight antenna installing holes on the second layer skeleton (2)
(4), 11 antenna installing holes (4) are uniformly provided on the third layer skeleton (3).
3. a kind of conformal antenna mounting framework according to claim 1, it is characterised in that: the antenna installing hole (4)
There are four antenna mounting column (6) for setting on the skeleton of surrounding.
4. a kind of conformal antenna mounting framework according to claim 1, it is characterised in that: the first layer skeleton (1)
Top be also provided with a positioning device mounting hole (5), also set up on the skeleton around positioning device mounting hole (5) there are four
To the positioning device positioning column (9) of mounting and positioning device, and the top of first layer skeleton (1) is dome structure.
5. a kind of conformal antenna mounting framework according to claim 1, it is characterised in that: the first layer skeleton (1)
With second layer skeleton (2) connect on ring and the ring that connects of second layer skeleton (2) and third layer skeleton (3) on offer and subtract
Repeated hole (8).
6. a kind of conformal antenna mounting framework according to claim 1, it is characterised in that: the third layer skeleton (3)
Multiple equally distributed antenna holder mounting bases (7) are provided on the lateral wall of bottom, antenna holder mounting base offers on (7)
Tapped through hole.
7. a kind of conformal antenna mounting framework according to claim 1, it is characterised in that: the tangent line angle a is
10°。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545235.8A CN106025490B (en) | 2016-07-12 | 2016-07-12 | A kind of conformal antenna mounting framework |
| PCT/CN2016/096412 WO2018010258A1 (en) | 2016-07-12 | 2016-08-23 | Conformal antenna mounting frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545235.8A CN106025490B (en) | 2016-07-12 | 2016-07-12 | A kind of conformal antenna mounting framework |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106025490A CN106025490A (en) | 2016-10-12 |
| CN106025490B true CN106025490B (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610545235.8A Active CN106025490B (en) | 2016-07-12 | 2016-07-12 | A kind of conformal antenna mounting framework |
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| WO (1) | WO2018010258A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958216B (en) * | 2016-07-12 | 2019-01-22 | 成都泰格微电子研究所有限责任公司 | A kind of conformal antenna array |
| CN106025541B (en) * | 2016-07-12 | 2018-12-04 | 成都泰格微电子研究所有限责任公司 | A kind of good conformal spherical antenna battle array of shield effectiveness |
| CN109193106A (en) * | 2018-08-06 | 2019-01-11 | 滁州市经纬装备科技有限公司 | A kind of spherical antenna bracket |
| CN112490690B (en) * | 2019-09-11 | 2022-12-20 | 英业达科技有限公司 | Antenna structure and operation method thereof |
| CN111564690A (en) * | 2020-02-27 | 2020-08-21 | 湖南迈克森伟电子科技有限公司 | Antenna array element assembly and ground satellite receiving terminal based on same |
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| CN103178359A (en) * | 2013-03-05 | 2013-06-26 | 浙江大学 | Method for designing conformal array antennas distributed in aperture field of spherical cap |
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| DE102009005103B4 (en) * | 2009-01-19 | 2011-07-07 | IMST GmbH, 47475 | Electronically controllable antenna in spherical form |
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- 2016-07-12 CN CN201610545235.8A patent/CN106025490B/en active Active
- 2016-08-23 WO PCT/CN2016/096412 patent/WO2018010258A1/en active Application Filing
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| CN103178359A (en) * | 2013-03-05 | 2013-06-26 | 浙江大学 | Method for designing conformal array antennas distributed in aperture field of spherical cap |
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| Publication number | Publication date |
|---|---|
| WO2018010258A1 (en) | 2018-01-18 |
| CN106025490A (en) | 2016-10-12 |
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