CN106025541A - Conformal spherical antenna array with good shielding effect - Google Patents
Conformal spherical antenna array with good shielding effect Download PDFInfo
- Publication number
- CN106025541A CN106025541A CN201610545288.XA CN201610545288A CN106025541A CN 106025541 A CN106025541 A CN 106025541A CN 201610545288 A CN201610545288 A CN 201610545288A CN 106025541 A CN106025541 A CN 106025541A
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- antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
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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
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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
-
- 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
- H01Q1/526—Electromagnetic shields
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
- H01Q21/293—Combinations of different interacting antenna units for giving a desired directional characteristic one unit or more being an array of identical aerial elements
Abstract
The invention discloses a conformal spherical antenna array with a good shielding effect. The antenna array comprises a radome (13), an antenna array (14), a shield cover (15) and a base plate (16). The antenna array (14) is arranged on the base plate (16). The shield cover (15) is located between the antenna array (14) and the base plate (16). The antenna array (14) is covered by the radome (13). The base plate (16) is provided with an annular groove (18). The lower edge of the radome (13) is inserted into the annular groove (18) and is positioned by a locking positioning mechanism. The antenna array (14) comprises a first skeleton (1), a second skeleton (2), a third skeleton (3), an antenna (11) and a positioning device (10). The conformal spherical antenna array provided by the invention has the advantages of high antenna radiation uniformity, high structural strength and good shielding effect.
Description
Technical field
The present invention relates to conformal spherical antenna battle array, the conformal spherical antenna battle array that a kind of shield effectiveness is good.
Background technology
Conformal (ellipse) spherical antenna battle array can realize the omnibearing radiation of hemisphere face.There is in numerous antenna systems incomparable advantage.Can be used for GCS Ground Communication System, communication in moving system airborne, vehicle-mounted, can also apply to radar, location, navigation field simultaneously.
Conformal array antenna has many types, has taper battle array, spheric array, cylindrical array etc..It possesses the characteristic of Conventional planar antennas battle array, also has a lot of difference simultaneously.
Planar array is the most ripe is applied to multiple field, but its scan angle is typically up to about 60 °.And spheric array can cover all around.This can play a role very well in Satellite Tracking, the field such as communication.Under conditions of reaching same wide angle of radiation, conformal spheric array has the biggest advantage at volume, power consumption, one-tenth present aspect.But the design of spheric array requires the highest.Relative to planar array, its array element skewness, Directional Pattern Analysis becomes complicated.Array for large radius of curvature wants to obtain the directional diagram of Sidelobe, it is necessary to distribute the position of each array element, so that all array element can effectively point to the direction of formulation.The most nonplanar array element radiation polarization is irregular, it is thus possible to cause cross polarization the highest.
(ellipse) spherical structure difficulty in terms of processing is bigger, and cost is the highest, its design difficulty mainly have following some: 1, the Mutual Coupling Analysis difficulty between (ellipse) sphere conformal antenna element characteristics and unit, 2, conformal Pattern Synthesis of Antenna Array difficulty, 3, conformal array array antenna polarizing control difficulty, 4, Wave beam forming and control are complicated, 5, test (calibration) difficult.
Summary of the invention
It is an object of the invention to overcome the shortcoming of prior art, it is provided that the conformal spherical antenna battle array that a kind of aerial radiation uniformity is high, structural strength is high and shield effectiveness is good.
The purpose of the present invention is achieved through the following technical solutions: the conformal spherical antenna battle array that a kind of shield effectiveness is good, it includes antenna house, antenna array, radome and base plate, described antenna array is arranged on base plate, and radome is between antenna array and base plate, described antenna house covers and offers a cannelure on antenna array, and base plate, and the lower limb of described antenna house inserts in cannelure, and positioned by locking positioning mechanism.
Described antenna array includes ground floor skeleton, second layer skeleton, third layer skeleton, antenna and positioner, described ground floor skeleton, second layer skeleton, third layer skeleton is all in same ellipsoid, and the inclination angle of each layer all differs, described ground floor skeleton, second layer skeleton is tangent with ellipsoid, third layer skeleton has tangent line angle a with the sphere tangent line of second layer skeleton, described ground floor skeleton, second layer skeleton, multiple antenna installing hole is all offered on third layer skeleton, it is provided with multiple antenna mounting post on the described skeleton around antenna installing hole, the installing hole corresponding with antenna mounting post it is provided with on described antenna, described antenna is arranged on antenna mounting post by screw, and antenna is positioned at the antenna installing hole of correspondence, described positioner is arranged on the top of ground floor skeleton.
Four antennas are uniformly installed on described ground floor skeleton, described second layer skeleton are uniformly provided with eight antennas, described third layer skeleton is uniformly provided with 11 antennas.
The top of described ground floor skeleton is dome structure, offers a positioner installing hole thereon, the described skeleton around positioner installing hole is additionally provided with four positioner locating dowels in order to mounting and positioning device.
Lightening hole is all offered on described ground floor skeleton and the phase T-Ring of second layer skeleton and on the phase T-Ring of second layer skeleton and third layer skeleton.
Multiple equally distributed antenna frame mounting seat it is provided with on the described lateral wall bottom third layer skeleton, tapped through hole is offered in antenna frame mounting seat, offering the antenna frame installing hole corresponding with antenna frame mounting seat on described base plate, skeleton is fastenedly connected by the attachment screw being arranged in antenna frame mounting seat and antenna frame installing hole for the third time.
Described locking positioning mechanism includes lock-screw, multiple tapped through hole is offered on the sidewall of described cannelure, the lower limb of described radome offers the hole, location with tapped through hole, by being locked at the lock-screw locking positioning in tapped through hole and hole, location between described antenna house and base plate.
The invention have the advantages that the conformal spherical antenna battle array of the present invention, aerial array is divided into three layers of skeleton, skeleton is the empty design of thread, i.e. ensure that structural strength, reduce again the weight of skeleton, also reduce the consumptive material of skeleton simultaneously, thus saved production cost, skeleton offers and realizes 23 antenna installing holes that antenna sphere is structured the formation, and between each layer of skeleton, there is different inclination angles, thus improve the gain flatness in the uniformity i.e. sweep limits of aerial radiation, and skeleton uses thread hollow structure, i.e. ensure that the performance of skeleton, reduce again materials cost and the weight of skeleton；Ground floor skeleton uses dome structure, thus ensure that the uniform force of antenna mounting framework, thus improves the stability of antenna mounting framework, and the luffing angle of antenna is adjustable, thus the angle of pitch of antenna according to the actual requirements, can be regulated, improve the versatility of aerial array；By the connection of antenna array Yu base plate, thus the installation realizing radome is fixed, so that radome is easy for installation, and antenna house uses sealing ring type piston sealing structure with base plate, so that good sealing effect, and seal conveniently, further improve the shield effectiveness of conformal spherical antenna battle array.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention
Fig. 2 is the structural representation of antenna array
Fig. 3 is ground floor skeleton, second layer skeleton, the connection diagram of third layer skeleton
Fig. 4 is the structural representation of antenna；
Fig. 5 is the structural representation of base plate；
In figure, 1-ground floor skeleton, 2-second layer skeleton, 3-third layer skeleton, 4-antenna installing hole, 5-positioner installing hole, 6-antenna mounting post, 7-antenna frame mounting seat, 8-lightening hole, 9-positioner locating dowel, 10-positioner, 11-antenna, 12-installing hole, 13-antenna house, 14-antenna array, 15-radome, 16-base plate, 17-antenna frame installing hole, 18-cannelure, 19-lock-screw.
Detailed description of the invention
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 the following stated:
nullAs shown in Figure 1 and Figure 5，The conformal spherical antenna battle array that a kind of shield effectiveness is good，It includes antenna house 13、Antenna array 14、Radome 15 and base plate 16，Described antenna array 14 is arranged on base plate 16，And radome 15 is between antenna array 14 and base plate 16，Described antenna house 13 covers antenna array 14，And on base plate 16, offer a cannelure 18，The lower limb of described antenna house 13 inserts in cannelure 18，And positioned by locking positioning mechanism，In the present embodiment，Described locking positioning mechanism includes lock-screw 19，Multiple tapped through hole is offered on the sidewall of described cannelure 18，The lower limb of described radome 13 offers the hole, location with tapped through hole，By being locked at the lock-screw locking positioning in tapped through hole and hole, location between described antenna house 13 and base plate 16，By this kind of mode，Change original end face seal structure，So that the sealing property between antenna house 13 and base plate 16 is guaranteed，Thus ensure that the shield effectiveness of radome 15，Improve the quality of antenna array.
nullIn the present embodiment，As shown in Fig. 2 ~ Fig. 4，Described antenna array 14 includes ground floor skeleton 1、Second layer skeleton 2、Third layer skeleton 3、Antenna 11 and positioner 10，Described ground floor skeleton 1、Second layer skeleton 2、Third layer skeleton 3 is all in same ellipsoid，And the inclination angle of each layer all differs，Described ground floor skeleton 1、Second layer skeleton 2 is tangent with ellipsoid，Third layer skeleton 3 has tangent line angle a with the sphere tangent line of second layer skeleton 1，Preferably，Tangent line angle a is 10 °，In this way，The gain flatness in the uniformity i.e. sweep limits of aerial radiation can be improved，In real process，Ground floor skeleton 1、Second layer skeleton 2 and third layer skeleton 3 are not limited in ellipsoid，It can also be sphere，Described ground floor skeleton 1、Second layer skeleton 2、Multiple antenna installing hole 4 is all offered on third layer skeleton 3，It is provided with multiple antenna mounting post 6 on the described skeleton around antenna installing hole 4，In the present embodiment，Antenna mounting post 6 is four，The installing hole 12 corresponding with antenna mounting post 6 it is provided with on described antenna 11，Further，Four projections are offered on the cylindrical of antenna 11，Installing hole 12 correspondence is opened on projection，Described antenna 11 is arranged on antenna mounting post 6 by screw，When mounted，The height of antenna mounting post 6 can change，Such that it is able to change the angle of pitch of antenna element by changing the height of antenna mounting post 6，For meeting the regulation of antenna mounting post 6，Antenna mounting post 6 and ground floor skeleton 1 can be used、Second layer skeleton 2、The threaded mode of third layer skeleton 3 is installed，The height of antenna mounting post 6 is regulated by the screw-in amount adjusting antenna mounting post 6，Described antenna 11 is positioned at the antenna installing hole 4 of correspondence，Described positioner 10 is arranged on the top of ground floor skeleton 1，In the present embodiment，Described ground floor skeleton 1、Second layer skeleton 2、Third layer skeleton 3 uses 3D printing technique to make，Compared with traditional handicraft，Its working (machining) efficiency is high、Machining accuracy is high and production cost is low.
In the present embodiment, four antennas 11 are uniformly installed on described ground floor skeleton 1, eight antennas are uniformly installed on described second layer skeleton 2, 11 antennas 11 are uniformly installed on described third layer skeleton 3, therefore antenna 11 amounts to 23, and 23 antennas, it is to meet the minimum unit number obtained under requirement, and though this junior unit number is under the requirement of global index, with unit number, positions etc. are variable, unit interval, ellipsoid sizes etc. are constraints, element pattern equivalence become point source directional diagram genetic algorithm be optimized and obtain, its concrete thought is as follows:
First from system index, the index request reached needed for conformal antenna is decomposited.Then, the antenna element characteristic needed for the index request of antenna is analyzed and the topological structure of conformal antenna array.And then determine required element pattern by optimized algorithm, the most conformal array topology layout is optimized.Aerial array is operated in S-band, carries a width of 10%, and sweep limits is the angle of pitch-75 ° to 75 °, 0 °-360 ° of azimuth.Aerial array gain in sweep limits is greater than 13dBi, and gain flatness is less than 1dB.Aerial array can support double-circle polarization mode of operation simultaneously, and its axle ratio is less than 3dB.Antenna should be able to accept the ability of more than three satellite information simultaneously simultaneously.
Obviously, for a Conformal Phased Array, its first should be limited in certain spatially, here we limit its scope a diameter less than 300mm hemisphere in.Simultaneously in order to save the cost of conformal phased array antenna, unit number and its position are the significant variables that we optimize.Its gain and gain flatness are very important optimization aim.First, draft an antenna element directional diagram, now with two variablees: the position coordinates of each unit (x, y, z) and the total N of antenna element.Each unit of array can not intersect, and its size is necessarily less than R at the radius being limited to hemisphere, say, that the coordinate control of each unit is within the scope of certain.It addition, in whole upper half spatial domain, the optimum results of antenna gain have to be larger than 13 dBi, and gain flatness is less than 1 dB.We use genetic algorithm to be optimized distribution and the element number of unit.If this element pattern drafted optimization can not meet the structure of requirement, the directional diagram of element antenna is adjusted, selects a new directional diagram to re-start optimization.After optimization aim reaches our requirement, we go to design the element pattern that we are required according to the directional diagram drafted, and the antenna element this designed is arranged according to the topological structure optimized, and finally utilizes full wave analysis software to carry out unitary analysis and optimization.
In the present embodiment, the top of described ground floor skeleton 1 is dome structure, the moulding of the arch of vault formula of its dome mechanism has the feature of surrounding power transmission, so can be by the most thinning for the wall thickness of support on the basis of meeting identical stress, thus reduce the weight of antenna mounting framework, offer a positioner installing hole 5 at the top of ground floor skeleton 1, the described skeleton around positioner installing hole 5 is additionally provided with four positioner locating dowels in order to mounting and positioning device 10.
In the present embodiment, lightening hole 8 is all offered on described ground floor skeleton 1 and the phase T-Ring of second layer skeleton 2 and on the phase T-Ring of second layer skeleton 2 and third layer skeleton 3, i.e. ground floor skeleton 1, second layer skeleton 2 and third layer skeleton 3 uses the empty design of thread, so it is possible not only to reduce the weight of antenna mounting framework, and also ensure that the uniform force of antenna mounting framework, thus improve the stability of antenna mounting framework.
In the present embodiment, multiple equally distributed antenna frame mounting seat 7 it is provided with on the described lateral wall bottom third layer skeleton 3, tapped through hole is offered in antenna frame mounting seat 7, offering the antenna frame installing hole 17 corresponding with antenna frame mounting seat 7 on described base plate 16, skeleton 3 is fastenedly connected by the attachment screw being arranged in antenna frame mounting seat 7 and antenna frame installing hole 17 for the third time.
Claims (7)
1. the conformal spherical antenna battle array that a shield effectiveness is good, it is characterized in that: it includes antenna house (13), antenna array (14), radome (15) and base plate (16), described antenna array (14) is arranged on base plate (16), and radome (15) is positioned between antenna array (14) and base plate (16), described antenna house (13) covers antenna array (14), and on base plate (16), offer a cannelure (18), the lower limb of described antenna house (13) inserts in cannelure (18), and is positioned by locking positioning mechanism.
nullThe conformal spherical antenna battle array that a kind of shield effectiveness the most according to claim 1 is good，It is characterized in that: described antenna array (14) includes ground floor skeleton (1)、Second layer skeleton (2)、Third layer skeleton (3)、Antenna (11) and positioner (10)，Described ground floor skeleton (1)、Second layer skeleton (2)、Third layer skeleton (3) is all in same ellipsoid，And the inclination angle of each layer all differs，Described ground floor skeleton (1)、Second layer skeleton (2) is tangent with ellipsoid，Third layer skeleton (3) has tangent line angle a with the sphere tangent line of second layer skeleton (1)，Described ground floor skeleton (1)、Second layer skeleton (2)、Multiple antenna installing hole (4) is all offered on third layer skeleton (3)，It is provided with multiple antenna mounting post (6) on described antenna installing hole (4) skeleton around，The installing hole (12) corresponding with antenna mounting post (6) it is provided with on described antenna (11)，Described antenna (11) is arranged on antenna mounting post (6) by screw，And antenna (11) is positioned at the antenna installing hole (4) of correspondence，Described positioner (10) is arranged on the top of ground floor skeleton (1).
The conformal spherical antenna battle array that a kind of shield effectiveness the most according to claim 2 is good, it is characterized in that: four antennas (11) are uniformly installed on described ground floor skeleton (1), eight antennas are uniformly installed on described second layer skeleton (2), described third layer skeleton (3) is uniformly provided with 11 antennas (11).
The conformal spherical antenna battle array that a kind of shield effectiveness the most according to claim 1 and 2 is good, it is characterized in that: the top of described ground floor skeleton (1) is dome structure, offer a positioner installing hole (5) thereon, described positioner installing hole (5) skeleton around is additionally provided with four positioner locating dowels (9) in order to mounting and positioning device (10).
The conformal spherical antenna battle array that a kind of shield effectiveness the most according to claim 4 is good, it is characterised in that: all offer lightening hole (8) on described ground floor skeleton (1) and the phase T-Ring of second layer skeleton (2) and on the phase T-Ring of second layer skeleton (2) and third layer skeleton (3).
The conformal spherical antenna battle array that a kind of shield effectiveness the most according to claim 5 is good, it is characterized in that: on the lateral wall of described third layer skeleton (3) bottom, be provided with multiple equally distributed antenna frame mounting seat (7), antenna frame mounting seat offers tapped through hole on (7), offering the antenna frame installing hole (17) corresponding with antenna frame mounting seat (7) on described base plate (16), skeleton (3) is fastenedly connected by the attachment screw being arranged in antenna frame mounting seat (7) and antenna frame installing hole (17) for the third time.
The conformal spherical antenna battle array that a kind of shield effectiveness the most according to claim 1 is good, it is characterized in that: described locking positioning mechanism includes lock-screw (19), multiple tapped through hole is offered on the sidewall of described cannelure (18), the lower limb of described radome (13) offers the hole, location with tapped through hole, by being locked at the lock-screw locking positioning in tapped through hole and hole, location between described antenna house (13) and base plate (16).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545288.XA CN106025541B (en) | 2016-07-12 | 2016-07-12 | A kind of good conformal spherical antenna battle array of shield effectiveness |
| PCT/CN2016/096411 WO2018010257A1 (en) | 2016-07-12 | 2016-08-23 | Conformal spherical antenna array having good shielding results |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610545288.XA CN106025541B (en) | 2016-07-12 | 2016-07-12 | A kind of good conformal spherical antenna battle array of shield effectiveness |
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| CN106025541A true CN106025541A (en) | 2016-10-12 |
| CN106025541B CN106025541B (en) | 2018-12-04 |
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| CN201610545288.XA Active CN106025541B (en) | 2016-07-12 | 2016-07-12 | A kind of good conformal spherical antenna battle array of shield effectiveness |
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| WO (1) | WO2018010257A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107152895A (en) * | 2017-06-21 | 2017-09-12 | 北京瑞极通达科技有限公司 | A kind of conformal radar surveys height/global location set composite |
| WO2018010259A1 (en) * | 2016-07-12 | 2018-01-18 | 成都泰格微波技术股份有限公司 | Conformal antenna array |
| WO2018010258A1 (en) * | 2016-07-12 | 2018-01-18 | 成都泰格微波技术股份有限公司 | Conformal antenna mounting frame |
| CN110542912A (en) * | 2019-08-20 | 2019-12-06 | 西安航天动力技术研究所 | Omnidirectional satellite navigation signal receiving system suitable for random attitude change |
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Also Published As
| Publication number | Publication date |
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| WO2018010257A1 (en) | 2018-01-18 |
| CN106025541B (en) | 2018-12-04 |
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