CN103700923B - A kind of High-gain dual-frequency base station antenna - Google Patents
A kind of High-gain dual-frequency base station antenna Download PDFInfo
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- CN103700923B CN103700923B CN201310610313.4A CN201310610313A CN103700923B CN 103700923 B CN103700923 B CN 103700923B CN 201310610313 A CN201310610313 A CN 201310610313A CN 103700923 B CN103700923 B CN 103700923B
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Abstract
The present invention relates to High-gain dual-frequency base station antenna, it is characterized in that: comprising: metal floor (1), vertical radiation paster (2), horizontal radiation paster (3) and coupling feed (4), vertical radiation paster (2) is vertically fixed on metal floor (1), vertical being connected of top and horizontal radiation paster (3); One end of coupling feed (4) is connected with the SMA head through floor hole (5), Part I (6) and the adjacent vertical radiation paster (2) of coupling feed form feed microstrip line, the Part II (7) of coupling feed is parallel to horizontal radiation paster (3) and contour with it, Part III (8) top of coupling feed is connected with the Part II (7) of coupling feed, completes the feed of antenna.The present invention is that a kind of gain is high, structure simple, can realizes the dual-frequency base station antenna of different frequent points, can meet Large Copacity multi-band wireless communication.
Description
Technical field
The invention belongs to wireless communication technology field, relate to a kind of High-gain dual-frequency base station antenna.
Background technology
In recent years, along with radio communication especially WLAN (wireless local area network) (WLAN) and worldwide interoperability for microwave access developing rapidly of (WIMAX), design simultaneous adaptation becomes one of focus of current Antenna Design in the dual-band antenna of WLAN2.4GHz and WIMAX3.5GHz.Therefore, require that antenna has two-band, coupling is good, high-gain and the feature such as structure is simple.The form of current dual-band antenna is a lot, as number of patent application is: 201310122359.1, the Chinese patent that patent name is " a kind of double frequency high-gain coaxial fed patch antenna " just proposes one and works in 2.45GHz and 5.8GHz high-gain aerial simultaneously, mainly comprise a rectangular sheets metal patch, two coating of a metal ground plate and EBG. antenna achieves at 2.40GHz-2.483GHz highest-gain 10dB, 5.725GHz-5.875GHz highest-gain 8dB.But adopt EBG structure while raising gain, make antenna structure become complicated.And for example number of patent application: 200610117043.3, patent name is the Chinese patent of " omnibearing/directive directional diagram reconstructable high-gain double frequency antenna ", according to monopole antenna character, utilize the coupling between monopole to realize dual frequency characteristics, and reach the object of widening frequency band.Utilize longitudinal array structure to improve the gain of antenna simultaneously, the average gain 7.78dBi of gain at 2.45GHz place when realizing directed radiation, 5.25GHz place average gain is 12.52dBi, be 6.32dBi at the average gain at 2.45GHz place during omnidirectional radiation, the average gain at 5.25GHz place is 9.73dBi.But need to design suitable feeding network due to array antenna, this improves design difficulty and the cost of manufacture of antenna undoubtedly.For another example document " Microstrip line-fed modified sierpinki fractal monopole antenna for dual-wideband applications, Choukiker, Yogesh Kumar, Behera, S.K.IEEE International Conference on Communication Control and Computing Technologies, ICCCCT2010, p 17-20, 2010 " self-similarity of fractal structure is utilized to achieve at 1.47GHz-2.7GHz in, 4.991GHz-5.4GHz work dual-band antenna, but the gain of 3-5dBi can not meet the high-gain requirement of antenna for base station.
Summary of the invention
The High-gain dual-frequency base station antenna that the object of the invention is to the deficiency existed for above-mentioned prior art, provide that a kind of gain is high, structure is simple, can realize different frequent points, can meet Large Copacity multi-band wireless communication.
The present invention realizes above-mentioned purpose technical scheme: High-gain dual-frequency base station antenna, it is characterized in that: comprising: metal floor, vertical radiation paster, horizontal radiation paster and coupling feed, vertical radiation paster is vertically fixed on metal floor, and top is connected with the vertical of horizontal radiation paster; One end of coupling feed is connected with the SMA head through floor hole, Part I and the adjacent vertical radiation paster of coupling feed form feed microstrip line, the Part II of coupling feed is parallel to horizontal radiation paster and contour with it, the Part III top of coupling feed is connected with the Part II of coupling feed, completes the feed of antenna.
Described horizontal radiation paster comprises two groups of symmetrical U-shaped chip units, U-shaped chip unit is made up of 3 U-shaped pasters respectively, size is little and structure is identical for 3 U-shaped pasters wherein two, another size is large, opening direction is same direction, and the U-shaped mouth of large U type paster is connected with two undersized U-shaped paster top frame beam centers; Parallelly between the large U type paster top frame beam of two groups of U-shaped chip units split, each large U type paster top frame beam is supported by vertical radiation paster; The center that vertical radiation paster is split at two groups of U-shaped chip units.
The U-shaped paster that described U-shaped chip unit is connected with vertical radiation paster realizes the work of a frequency, and two U-shaped pasters at its two ends realize the work of another frequency, realizes frequency tunability by the size of the U-shaped paster of adjusting size.
The width adjusting of described vertical radiation paster, makes operating frequency of antenna adjustable.
Described coupling feed is bent into Γ shape by rectangular metal sheet through twice, be divided into three parts: Part I and the antenna of coupling feed are contour, be connected with the coaxial line inner core through perforated tiles perpendicular to floor, feed microstrip line is formed, by the Part II of couple electromagnetic energy to coupling feed with neighboring vertical radiation patch; The Part II of coupling feed is parallel to floor, and the Part I top of butt coupling feeder line and the Part III of coupling feed, realize Energy Coupling to horizontal radiation paster and vertical radiation paster.
Described metal floor is square metal sheet, and floor central openings is convenient to coaxial line inner core through being connected with coupling feed, and floor is connected with the outer core of coaxial line.
Compared with prior art, tool of the present invention has the following advantages:
1, the coupling feed that the present invention adopts is made up of the metal patch that a section is amounted to forming Γ-shape shape, and it forms microstrip line with vertical paster, better can realize impedance matching.
2, the back lobe radiation that the metal floor that the present invention adopts reduces antenna improves the gain of antenna, achieves good performance.
3, the antenna material that the present invention adopts is metallic conductor, and without the need to adding medium, or new material just achieves the high-gain design of antenna.
4, the present invention adopts self-similar structure to achieve two-frequency operation, compared to fractal structure, by regulating the size of U-shaped structure to change antenna performance, having frequency tunability, meeting different application situation.
5, the antenna material that the present invention adopts is metallic conductor, and make antenna easy to process, cost is low, cheap, is convenient to produce.
Accompanying drawing explanation
Below in conjunction with embodiment and accompanying drawing, the present invention is described further:
Fig. 1 is the structure diagonal view of the embodiment of the present invention;
Fig. 2 is the structure vertical view of the embodiment of the present invention;
Fig. 3 is the structure side view of the embodiment of the present invention;
Fig. 4 is the emulation of the embodiment of the present invention and measurement S11;
Fig. 5 is the simulated radiation directional diagram of the embodiment of the present invention at 2.4GHz;
Fig. 6 is the simulated radiation directional diagram of the embodiment of the present invention at 3.5GHz.
In figure, 1, metal floor; 2, vertical radiation paster; 3, horizontal radiation paster; 4, coupling feed; 5, floor hole; 6, the Part I of coupling feed; 7, the Part II of coupling feed; 8, the Part III of coupling feed.
specific implementation method
See Fig. 1, Fig. 2 and Fig. 3, High-gain dual-frequency base station antenna, comprising: metal floor 1, vertical radiation paster 2, horizontal radiation paster 3 and coupling feed 4, vertical radiation paster 2 is vertically fixed on metal floor 1, and top is connected with the vertical of horizontal radiation paster 3; One end of coupling feed 4 is connected with the SMA head through floor hole 5, Part I 6 and the adjacent vertical radiation paster 2 of coupling feed form feed microstrip line, the Part II 7 of coupling feed is parallel to horizontal radiation paster 3 and contour with it, Part III 8 top of coupling feed is connected with the Part II 7 of coupling feed, completes the feed of antenna.
Horizontal radiation paster 3 comprises two groups of symmetrical U-shaped chip units, U-shaped chip unit is made up of 3 U-shaped pasters respectively, size is little and structure is identical for 3 U-shaped pasters wherein two, another size is large, opening direction is same direction, and the U-shaped mouth of large U type paster is connected with two undersized U-shaped paster top frame beam centers; Parallelly between the large U type paster top frame beam of two groups of U-shaped chip units split, each large U type paster top frame beam is supported by vertical radiation paster 2.The center that vertical radiation paster 2 is split at two groups of U-shaped chip units.
The U-shaped paster that described U-shaped chip unit is connected with vertical radiation paster realizes the work of a frequency, and two U-shaped pasters at its two ends realize the work of another frequency, realizes frequency tunability by the size of the U-shaped paster of adjusting size.As larger-size U-shaped paster is operated in 3.5GHz, the U-shaped paster groundwork 2.4GHz that size is less.Frequency tunability is realized by the size of the U-shaped paster of adjusting size.
The width adjusting of described vertical radiation paster 2, makes operating frequency of antenna adjustable.
Described coupling feed 4 is bent into Γ shape by rectangular metal sheet through twice, be divided into three parts: Part I 6 and the antenna contour (the top plane of horizontal radiation paster 3) of coupling feed, be connected with the coaxial line inner core through perforated tiles perpendicular to floor, feed microstrip line is formed, by the Part II 7 of couple electromagnetic energy to coupling feed with neighboring vertical radiation patch; The Part II 7 of coupling feed is parallel to floor, and Part I 6 top of butt coupling feeder line and the Part III 8 of coupling feed, realize Energy Coupling to horizontal radiation paster and vertical radiation paster.
Described metal floor is square metal sheet, and floor central openings is convenient to coaxial line inner core through being connected with coupling feed, and floor is connected with the outer core of coaxial line.
Radiation patch of the present invention is made up of with a pair vertical paster perpendicular to metal floor the pair of parallel horizontal paster in metal floor, utilizes the self-similarity nature of fractal antenna to realize dual-radio design, the working frequency points that the disparate modules of analog structure is corresponding different.
See Fig. 4, the High-gain dual-frequency antenna in the present embodiment, the U-shaped structure of self similarity defines two working frequency range being positioned at 2.3GHz-2.46 GHz and 3.33 GHz-3.73 GHz, and maximum gain is respectively 9.5dBi(Fig. 5) and 13.0dBi(Fig. 6).
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (5)
1. a High-gain dual-frequency base station antenna, it is characterized in that: comprising: metal floor (1), vertical radiation paster (2), horizontal radiation paster (3) and coupling feed (4), vertical radiation paster (2) is vertically fixed on metal floor (1), and top is connected with horizontal radiation paster (3) is vertical; One end of coupling feed (4) is connected with the SMA head through floor hole (5), Part I (6) and the adjacent vertical radiation paster (2) of coupling feed form feed microstrip line, the Part II (7) of coupling feed is parallel to horizontal radiation paster (3) and contour with it, Part III (8) top of coupling feed is connected with the Part II (7) of coupling feed, completes the feed of antenna;
Described horizontal radiation paster (3) comprises two groups of symmetrical U type chip units, U type chip unit is made up of 3 U type pasters respectively, size is little and structure is identical for 3 U type pasters wherein two, another size is large, opening direction is same direction, and the U type mouth of large U type paster is connected with two undersized U type paster top frame beam centers; Parallelly between the large U type paster top frame beam of two groups of U type chip units split, each large U type paster top frame beam is supported by vertical radiation paster (2); The center that vertical radiation paster (2) is split at two groups of U type chip units.
2. High-gain dual-frequency base station antenna according to claim 1, it is characterized in that: the U shape paster that described U type chip unit is connected with vertical radiation paster realizes the work of a frequency, two U type pasters at its two ends realize the work of another frequency, realize frequency tunability by the size of adjusting size U type paster.
3. High-gain dual-frequency base station antenna according to claim 1, is characterized in that: the width adjusting of described vertical radiation paster (2), makes operating frequency of antenna adjustable.
4. High-gain dual-frequency base station antenna according to claim 1, it is characterized in that: described coupling feed (4) is bent into Γ shape by rectangular metal sheet through twice, be divided into three parts: the Part I (6) of coupling feed is contour with antenna, be connected with the coaxial line inner core through perforated tiles perpendicular to floor, feed microstrip line is formed, by the Part II (7) of couple electromagnetic energy to coupling feed with neighboring vertical radiation patch; The Part II (7) of coupling feed is parallel to floor, and Part I (6) top of butt coupling feeder line and the Part III (8) of coupling feed, realize Energy Coupling to horizontal radiation paster and vertical radiation paster.
5. High-gain dual-frequency base station antenna according to claim 1, is characterized in that: described metal floor (1) is square metal sheet, and floor central openings is convenient to coaxial line inner core through being connected with coupling feed, and floor is connected with the outer core of coaxial line.
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| CN201310610313.4A CN103700923B (en) | 2013-11-27 | 2013-11-27 | A kind of High-gain dual-frequency base station antenna |
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| CN201310610313.4A CN103700923B (en) | 2013-11-27 | 2013-11-27 | A kind of High-gain dual-frequency base station antenna |
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| CN103700923B true CN103700923B (en) | 2015-11-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078751A (en) * | 2014-06-11 | 2014-10-01 | 西安电子科技大学 | Directional dual-frequency base station antenna |
| CN107248613B (en) * | 2017-06-19 | 2023-07-07 | 深圳市维力谷无线技术股份有限公司 | High-gain dual-frequency antenna unit |
| CN108417975B (en) * | 2018-01-30 | 2020-03-17 | 电子科技大学 | Four-frequency-band independent adjustable antenna |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5280297A (en) * | 1992-04-06 | 1994-01-18 | General Electric Co. | Active reflectarray antenna for communication satellite frequency re-use |
| EP1098391A2 (en) * | 1999-11-03 | 2001-05-09 | Andrew A.G. | Folded dipole antenna |
| CN101034765A (en) * | 2006-03-10 | 2007-09-12 | 香港城市大学 | Complementary wideband antenna |
| CN101635392A (en) * | 2008-07-21 | 2010-01-27 | 华为技术有限公司 | Antenna unit, coaxial radiation assembly and antenna |
| CN102280687A (en) * | 2011-04-28 | 2011-12-14 | 广东博纬通信科技有限公司 | High-isolation four-port diversity antenna for mobile communication |
| CN102882004A (en) * | 2012-06-29 | 2013-01-16 | 华为技术有限公司 | Electromagnetic dipole antenna |
-
2013
- 2013-11-27 CN CN201310610313.4A patent/CN103700923B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5280297A (en) * | 1992-04-06 | 1994-01-18 | General Electric Co. | Active reflectarray antenna for communication satellite frequency re-use |
| EP1098391A2 (en) * | 1999-11-03 | 2001-05-09 | Andrew A.G. | Folded dipole antenna |
| CN101034765A (en) * | 2006-03-10 | 2007-09-12 | 香港城市大学 | Complementary wideband antenna |
| CN101635392A (en) * | 2008-07-21 | 2010-01-27 | 华为技术有限公司 | Antenna unit, coaxial radiation assembly and antenna |
| CN102280687A (en) * | 2011-04-28 | 2011-12-14 | 广东博纬通信科技有限公司 | High-isolation four-port diversity antenna for mobile communication |
| CN102882004A (en) * | 2012-06-29 | 2013-01-16 | 华为技术有限公司 | Electromagnetic dipole antenna |
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Effective date of registration: 20170113 Address after: 523000 Dongguan City, Dongcheng District Province, cattle mountain industrial park outside the landscape road, the main mountain industrial zone, No. 2 Patentee after: GUANGDONG HUISU TELECOMMUNICATION TECH INC. Address before: Taibai Road 710071 Shaanxi city of Xi'an province Xi'an Electronic and Science University No. 2 Patentee before: Xian Electronics Science & Technology Univ. |
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Inventor after: Di Huiqing Inventor after: Chen Hui Inventor after: Gao Qiqiang Inventor after: Li Zhenhua Inventor after: Liang Changhong Inventor before: Di Huiqing Inventor before: Gao Qiqiang Inventor before: Li Zhenhua Inventor before: Liang Changhong |
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Effective date of registration: 20200513 Address after: 310000 Room 518, floor 5, building A18, No. 9, Jiusheng Road, Jianggan District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU PINGZHI INFORMATION TECHNOLOGY Co.,Ltd. Address before: 523000, Guangdong, Dongguan province Dongcheng District Niu Shan Industrial Park, landscape road, main Mountain Industrial Zone No. 2 Patentee before: GUANGDONG HUISU TELECOMMUNICATION TECH Inc. |