CN102544728A - Array antenna - Google Patents
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- CN102544728A CN102544728A CN2012100058906A CN201210005890A CN102544728A CN 102544728 A CN102544728 A CN 102544728A CN 2012100058906 A CN2012100058906 A CN 2012100058906A CN 201210005890 A CN201210005890 A CN 201210005890A CN 102544728 A CN102544728 A CN 102544728A
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Abstract
The invention discloses an array antenna, comprising a micro-strip antenna array consisting of micro-strip antenna units, a reflection board and a phase shift feed network. The micro-strip antenna array is arranged on the front face of the reflection board; the phase shift feed network is arranged on the back face of the reflection board; and an isolating strip is arranged between each two adjacent micro-strip antenna units of the array antenna. According to the array antenna disclosed by the invention, the isolation of the array antenna is improved.
Description
Technical field
The present invention relates to field of antenna, relate in particular to a kind of array antenna.
Background technology
Along with the continuous development of satellite navigation and measuring technique, global position system has also obtained increasingly extensive application.At present; The existing a plurality of countries in the whole world have set up the global position system of oneself; Like the Beidou satellite navigation system of China, the global positioning system of the U.S. (Global Positioning System; GPS), Muscovite GPS (Global Navigation Satellite System, GLONASS) and Europe the Galileo NAVSTAR.The satellite-signal of satellite navigation system that with GPS is representative is very faint; Be easy to receive extraneous radio frequency interference; So the interference free performance of the antenna of the receiving equipment of satellite-signal requires just than higher; If the antijamming capability of the antenna of receiving equipment is not enough, possibly cause the receiving equipment cisco unity malfunction under the serious situation.Basically adopt at present array adaptive antenna technology to realize the antijamming capability of antenna, the conventional array antenna that uses adopts the single feed point feed, and there is narrow bandwidth in it, and low elevation axis ratio is produced problems such as debugging complicacy.Usually array antenna can be with array element relatively away from putting in order to reduce the mutual coupling influence between array element, and the array antenna size can be bigger like this.
Summary of the invention
The objective of the invention is, a kind of array antenna is provided, big to optimize existing array antenna volume, the problem that isolation is not high.
The invention provides a kind of array antenna; Comprise micro-strip antenna array, reflecting plate and the phase shift feeding network formed by microband antenna unit; Above-mentioned micro-strip antenna array is arranged on the front of said reflection plate; Above-mentioned phase shift feeding network is arranged on the back side of said reflection plate, is provided with the isolation strip between the adjacent microband antenna unit of above-mentioned array antenna.
The present invention has changed the flow direction of microband antenna unit surface current, thereby has increased the isolation between the microband antenna unit through around the microband antenna unit limit adjacent with other microband antenna units, the isolation strip being set; The present invention can be applicable to the front end of the anti-interference AAS in satellite navigation and location system field.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the front schematic view of array antenna of the present invention when having 4 microband antenna units;
Fig. 2 is the schematic rear view of the above-mentioned array antenna of Fig. 1;
Fig. 3 is the front schematic view of array antenna of the present invention when having 8 microband antenna units;
Fig. 4 is the schematic rear view of the above-mentioned array antenna of Fig. 3;
Fig. 5 is the gain analogous diagram of the microband antenna unit of the said array antenna of Fig. 1;
Fig. 6 is the axial ratio analogous diagram of the microband antenna unit of the said array antenna of Fig. 1;
Fig. 7 is the isolation analogous diagram of the microband antenna unit of the said array antenna of Fig. 1;
Fig. 8 is the gain analogous diagram of the microband antenna unit on every side of the said array antenna of Fig. 3;
Fig. 9 is the axial ratio analogous diagram of the microband antenna unit on every side of the said array antenna of Fig. 3;
Figure 10 is the gain analogous diagram of the center microstrip antenna of the said array antenna of Fig. 3;
Figure 11 is the axial ratio analogous diagram of the center microstrip antenna of the said array antenna of Fig. 3;
Figure 12 is the isolation analogous diagram of the microband antenna unit of the said array antenna of Fig. 3.
Among the figure, 1 is microband antenna unit, and 2 is reflecting plate, and 3 are the phase shift feeding network, and 4 is the isolation strip, and 5 are the metallization via hole, and 6 are signal hole, feedback pin position.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Among the present invention, the isolation of adjacent microband antenna unit 1 is all greater than 15dB; Each microband antenna unit 1 all has a phase shift feeding network 3 independently, and like Fig. 2 and shown in Figure 4, promptly the number at phase shift feed networking 3 is identical with the number of microband antenna unit 1; Phase shift feeding network 3 is positioned at the back side of reflecting plate 2; Microband antenna unit 1 is the front and back that the plane of symmetry is symmetrically distributed in reflecting plate 2 with phase shift feeding network 3 with reflecting plate 2; That is to say; If microband antenna unit 1 is when being provided with reference to 45 ° of microband antenna unit rotations, then its corresponding phase shift feeding network 3 also rotates same angle setting; Microband antenna unit 1 is through the direct feed of double-fed pin, and metallization via hole 5 is in order to guarantee that microband antenna unit 1 can good earth.
As shown in Figure 1, be the front schematic view of array antenna of the present invention when having 4 microband antenna units; In conjunction with Fig. 2; Be the schematic rear view of the above-mentioned array antenna of Fig. 1, in the present embodiment, array antenna comprises micro-strip antenna array, reflecting plate 2 and the phase shift feeding network of being made up of 4 microband antenna unit 1A, 1B, 1C, 1D 3; Microband antenna unit 1A, 1B, 1C, 1D are arranged on the front of reflecting plate 2; Wherein, microband antenna unit 1D is positioned at reflecting plate 2 centers, and the center that microband antenna unit 1A, 1B, 1C are evenly distributed on reflecting plate 2 is on the circumference in the center of circle; The d limit of the b of microband antenna unit 1A, c limit and microband antenna unit 1D is adjacent; So be provided with isolation strip 4 around the b of microband antenna unit 1A, the c limit; The a limit of the b of microband antenna unit 1B, c limit and microband antenna unit 1D is adjacent, thus the b of microband antenna unit 1B, c limit around be provided with isolation strip 4, the c limit of the b of microband antenna unit 1C, c limit and microband antenna unit 1D is adjacent; So be provided with isolation strip 4 around the b of microband antenna unit 1C, the c limit; Because a, b, the d limit of microband antenna unit 1C do not have adjacent microband antenna unit 1, so do not need to be provided with in addition isolation strip 4, isolation strip 4 is for being opened in the banded hollow out gap on the reflecting plate 2 again.
Among the present invention; When the distance between two adjacent microband antenna units 1 was far away, such as the half of the distance between two adjacent microband antenna units 1 more than or equal to the operating frequency of microband antenna unit 1, the polarization interference ratio in the same way between the feedback pin of microband antenna unit 1 was less; Can ignore; So in this case, in any case the polarised direction of the feedback pin of each microband antenna unit 1 is provided with, the polarization interference problem of generation can not influence antenna work; But; When the close together between two adjacent microband antenna units 1; Less than the polarised direction of the feedback pin of half the and each microstrip antenna 1 of the operating frequency of microband antenna unit 1 when identical, the working sensitivity that can influence array antenna is disturbed in the polarization in the same way of 1 generation of microband antenna unit, is presenting the polarization interference problem that exists under the identical situation of stylus direction for eliminating microband antenna unit 1 such as the distance between two adjacent microband antenna units 1; The present invention is when being provided with microband antenna unit 1; Through the mode of rotation microband antenna unit 1, make distance inequality, in the present embodiment less than the polarised direction of the feedback pin of each half the microband antenna unit 1 of operating frequency; With microband antenna unit 1A is with reference to microband antenna unit; The relative microband antenna unit 1A of microband antenna unit 1D turns clockwise 45 ° and is provided with, and the relative microband antenna unit 1A of microband antenna unit 1B turns clockwise 90 ° and is provided with, the relative microband antenna unit 1A of the microband antenna unit 1C 180 ° of settings that turn clockwise; It is turn clockwise 45 ° the integral multiple setting of each microband antenna unit relative reference microband antenna unit; So, promptly make distance all inequality, reached and eliminated the purpose that polarization is disturbed less than the polarised direction of the feedback pin of the half the microband antenna unit 1 of operating frequency.
As shown in Figure 3, be the front schematic view of array antenna of the present invention when having 8 microband antenna units; In conjunction with Fig. 4, i.e. the schematic rear view of the above-mentioned array antenna of Fig. 3 is in the present embodiment; Array antenna comprises by 8 microband antenna unit 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H forms micro-strip antenna array, reflecting plate 2 and phase shift feeding network 3, and it is on the circumference of the annulus that forms of the center of circle, wherein that microband antenna unit 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H are distributed in reflecting plate 2 centers; Microband antenna unit 1A, 1B, 1C, 1D are arranged on the position of intersecting point of the bigger circumference of the radius of diagonal and annulus of reflecting plate 2, are with reference to microband antenna unit with microband antenna unit 1A, and 1B is with respect to the 1A 90 ° of settings that turn clockwise; It is 1A and 1B symmetry; 1C turns clockwise 180 ° with respect to 1A and is provided with, i.e. 1B and 1C symmetry, and 1D is with respect to the 1A 270 ° of settings that turn clockwise; Be 1C and 1D symmetry, 1A and 1D symmetry; Microband antenna unit 1E, 1F, 1G, 1H are arranged on the position of intersecting point of the less circumference of the radius of vertical, horizontal center line and annulus of reflecting plate 2; 1E is rotated counterclockwise 135 ° of settings with respect to 1A; 1G and 1E are symmetrical set, and 1H is rotated counterclockwise 45 ° of settings with respect to 1A, and 1F and 1H are symmetrical set; In the present embodiment; All be provided with isolation strip 4 around the limit that microband antenna unit each microband antenna unit 1 and adjacent 1 is adjacent; Isolation strip 4 is for being opened in the banded hollow out gap on the reflecting plate 2; As shown in the figure, a limit of the b of microband antenna unit 1A, c limit and microband antenna unit 1H is adjacent, so be provided with isolation strip 4 around the b of microband antenna unit 1A, c limit; The a limit of the b of microband antenna unit 1B, c limit and microband antenna unit 1F is adjacent, so be provided with isolation strip 4 around the b of microband antenna unit 1B, c limit; The d limit of the b of microband antenna unit 1C, c limit and microband antenna unit 1F is adjacent, so be provided with isolation strip 4 around the b of microband antenna unit 1C, c limit; The d limit of the b of microband antenna unit 1D, c limit and microband antenna unit 1H is adjacent, so be provided with isolation strip 4 around the b of microband antenna unit 1D, c limit; The a of microband antenna unit 1E, d limit respectively with the b limit of microband antenna unit 1H, the b limit of 1F, and a of 1G, d limit are adjacent, so be provided with isolation strip 4 around a of microband antenna unit 1E, d limit; In like manner, the b of a of the b of microband antenna unit 1F, c limit, microband antenna unit 1G, d limit, microband antenna unit 1H, c limit also all are provided with isolation strip 4.
In other embodiments, as long as guarantee that distance is inequality less than the polarised direction of the feedback pin of the half the microband antenna unit 1 of operating frequency, how which microband antenna unit specifically is provided with, and then decides according to concrete condition.
As shown in Figure 5, be the gain analogous diagram of the said array antenna microband antenna unit of Fig. 1, wherein transverse axis (X axle) is represented elevation angle angle, the longitudinal axis (Y axle) expression antenna gain.
As shown in Figure 6, be the axial ratio analogous diagram of the microband antenna unit of the said array antenna of Fig. 1, wherein transverse axis (X axle) is represented elevation angle angle, the longitudinal axis (Y axle) expression axial ratio.
As shown in Figure 7, be the isolation analogous diagram of the microband antenna unit of the said array antenna of Fig. 1, wherein transverse axis (X axle) is represented frequency, the longitudinal axis (Y axle) expression isolation.
As shown in Figure 8, be the gain analogous diagram of the microband antenna unit on every side of the said array antenna of Fig. 3, wherein transverse axis (X axle) is represented elevation angle angle, the longitudinal axis (Y axle) expression antenna gain.
As shown in Figure 9, be the axial ratio analogous diagram of the microband antenna unit on every side of the said array antenna of Fig. 3, wherein transverse axis (X axle) is represented elevation angle angle, the longitudinal axis (Y axle) expression axial ratio.
Shown in figure 10, be the gain analogous diagram of the center microstrip antenna of the said array antenna of Fig. 3, wherein transverse axis (X axle) is represented elevation angle angle, the longitudinal axis (Y axle) expression antenna gain.
Shown in figure 11, be the axial ratio analogous diagram of the center microstrip antenna of the said array antenna of Fig. 3, wherein transverse axis (X axle) is represented elevation angle angle, the longitudinal axis (Y axle) expression axial ratio.
Shown in figure 12, be the isolation analogous diagram of the microband antenna unit of the said array antenna of Fig. 3, wherein transverse axis (X axle) is represented frequency, the longitudinal axis (Y axle) expression isolation.Dotted line is represented be antenna the center microstrip antenna and and any on every side microband antenna unit between isolation, what solid line was represented is the isolation between adjacent on every side two microband antenna units.
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention; But as previously mentioned; Be to be understood that the present invention is not limited to the form that this paper discloses, should do not regard eliminating as, and can be used for various other combinations, modification and environment other embodiment; And can in invention contemplated scope described herein, change through the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of accompanying claims of the present invention.
Claims (8)
1. array antenna; Comprise micro-strip antenna array, reflecting plate and the phase shift feeding network formed by microband antenna unit; Said micro-strip antenna array is arranged on the front of said reflecting plate; Said phase shift feeding network is arranged on the back side of said reflecting plate, it is characterized in that, is provided with the isolation strip between the adjacent microband antenna unit of said array antenna.
2. array antenna according to claim 1 is characterized in that, said isolation strip be arranged on said adjacent microband antenna unit adjacent limit around.
3. array antenna according to claim 1 and 2 is characterized in that, said isolation strip is the banded hollow out gap that is opened on the said reflecting plate.
4. array antenna according to claim 3 is characterized in that, said microband antenna unit center is provided with the metallization via hole, and through double-fed pin feed.
5. array antenna according to claim 4 is characterized in that, each microband antenna unit in the said micro-strip antenna array all has a phase shift feeding network independently.
6. array antenna according to claim 5 is characterized in that, said phase shift feeding network and said microband antenna unit are symmetricly set on two faces of said reflecting plate.
7. array antenna according to claim 1 and 2; It is characterized in that; In the said micro-strip antenna array; Each microband antenna unit is arranged on the said reflecting plate with respect to the integral multiple that perhaps is rotated counterclockwise 45 ° with reference to microband antenna unit clockwise, and wherein, said is a microband antenna unit in the said micro-strip antenna array with reference to microband antenna unit.
8. array antenna according to claim 1 and 2 is characterized in that, the isolation between the adjacent microband antenna unit in the said micro-strip antenna array is all greater than 15dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210005890.6A CN102544728B (en) | 2012-01-10 | 2012-01-10 | Array antenna |
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| CN201210005890.6A CN102544728B (en) | 2012-01-10 | 2012-01-10 | Array antenna |
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| CN102544728A true CN102544728A (en) | 2012-07-04 |
| CN102544728B CN102544728B (en) | 2015-11-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928762A (en) * | 2014-04-15 | 2014-07-16 | 华为技术有限公司 | Antenna device |
| WO2015042953A1 (en) * | 2013-09-30 | 2015-04-02 | 华为技术有限公司 | Antenna array and phase control system |
| CN106532262A (en) * | 2016-11-08 | 2017-03-22 | 中国电子科技集团公司第二十研究所 | Multi-system antenna nested ring array |
| CN107809000A (en) * | 2017-10-10 | 2018-03-16 | 中国人民解放军63653部队 | A kind of low axle of radiation field measurement micro-strip in the air compares circular polarized antenna |
| CN109888489A (en) * | 2019-04-16 | 2019-06-14 | 深圳市朗赛微波通信有限公司 | A kind of raising amplitude-phase consistency anti-interference antenna unit and anti-jamming array array antenna |
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| CN2492989Y (en) * | 2001-07-27 | 2002-05-22 | 台湾骏炎科技股份有限公司 | Double-polarization array antenna |
| CN101316008A (en) * | 2008-06-13 | 2008-12-03 | 哈尔滨工业大学 | MIMO mobile terminal multi-antenna with high isolation and low correlated characteristic |
| CN101662068A (en) * | 2008-08-29 | 2010-03-03 | 华为技术有限公司 | Decoupling assembly, antenna module and antenna array |
| CN102117969A (en) * | 2011-03-11 | 2011-07-06 | 深圳市华信天线技术有限公司 | Array antenna |
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2012
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Patent Citations (4)
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| CN2492989Y (en) * | 2001-07-27 | 2002-05-22 | 台湾骏炎科技股份有限公司 | Double-polarization array antenna |
| CN101316008A (en) * | 2008-06-13 | 2008-12-03 | 哈尔滨工业大学 | MIMO mobile terminal multi-antenna with high isolation and low correlated characteristic |
| CN101662068A (en) * | 2008-08-29 | 2010-03-03 | 华为技术有限公司 | Decoupling assembly, antenna module and antenna array |
| CN102117969A (en) * | 2011-03-11 | 2011-07-06 | 深圳市华信天线技术有限公司 | Array antenna |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015042953A1 (en) * | 2013-09-30 | 2015-04-02 | 华为技术有限公司 | Antenna array and phase control system |
| US9929465B2 (en) | 2013-09-30 | 2018-03-27 | Huawei Technologies Co., Ltd. | Antenna array and phased array system to which antenna array is applied |
| CN103928762A (en) * | 2014-04-15 | 2014-07-16 | 华为技术有限公司 | Antenna device |
| CN103928762B (en) * | 2014-04-15 | 2016-01-27 | 华为技术有限公司 | Antenna equipment |
| CN106532262A (en) * | 2016-11-08 | 2017-03-22 | 中国电子科技集团公司第二十研究所 | Multi-system antenna nested ring array |
| CN107809000A (en) * | 2017-10-10 | 2018-03-16 | 中国人民解放军63653部队 | A kind of low axle of radiation field measurement micro-strip in the air compares circular polarized antenna |
| CN109888489A (en) * | 2019-04-16 | 2019-06-14 | 深圳市朗赛微波通信有限公司 | A kind of raising amplitude-phase consistency anti-interference antenna unit and anti-jamming array array antenna |
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| CN102544728B (en) | 2015-11-25 |
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Effective date of registration: 20170925 Address after: 518000, Shenzhen, Guangdong, Nanshan District Zhongshan road 1001, TCL international E City, E1 building, 12 floor Patentee after: Harxon Corporation Address before: 518057, Guangdong, Nanshan District province science and technology, South twelve road hi tech Industrial Park, South District, Shenzhen electric lighting R & D center on the third floor, A1 Patentee before: Shenzhen Huaxin Antenna Technology Co., Ltd. |