CN105006650B - A kind of Bipolarization antenna for base station based on photonic crystal - Google Patents
A kind of Bipolarization antenna for base station based on photonic crystal Download PDFInfo
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- CN105006650B CN105006650B CN201510455224.6A CN201510455224A CN105006650B CN 105006650 B CN105006650 B CN 105006650B CN 201510455224 A CN201510455224 A CN 201510455224A CN 105006650 B CN105006650 B CN 105006650B
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- photonic crystal
- medium substrate
- wallboard
- division board
- guide plate
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Abstract
The invention discloses a kind of Bipolarization antenna for base station based on photonic crystal, including medium substrate, the back side of medium substrate is provided with earth plate, positive center is provided with two aerial arrays side by side by balun, the positive edge of medium substrate has been extends in the vertical direction photonic crystal reflection wallboard, photonic crystal division board has been extends in the vertical direction on medium substrate between aerial array, the lateral surface of photonic crystal reflection wallboard and the back side of photonic crystal division board are provided with guide plate, photonic crystal reflects the medial surface of wallboard, the position of the corresponding guide plate in front of photonic crystal division board is respectively equipped with the metal patch of some periodic arrangements, conductive via is provided between metal patch and guide plate.The antenna of the present invention can realize wide band effect, and the propagation of surface wave is reduced by the reflection wallboard based on photonic crystal and division board, and so as to reduce the coupling between aerial array, and the gross weight of antenna substantially reduces.
Description
Technical field
The invention belongs to wireless communication technology field, and in particular to a kind of Bipolarization antenna for base station based on photonic crystal.
Background technology
With the fast development of wireless communication technology, a variety of simultaneous situations of communication standard are inevitable, simultaneously
Because people are to the worry of aerial radiation and the conflict of original base station location so that the addressing of new antenna for base station is increasingly difficult to,
Therefore, the antenna for base station that covering more broadband can adapt to more multi-standard is designed, the difficulty of base station selection can be efficiently solved
Topic, saves substantial amounts of resource.Furthermore because the volume of antenna for base station is larger and weight is also larger, cause installation cost and
Difficulty also correspondingly increases, and therefore, mitigates the weight of antenna as far as possible on the premise of antenna for base station performance is ensured with very heavy
The realistic meaning wanted.
Isolation between antennas is to embody the important parameter of degree of influencing each other between antenna, and isolation is higher, and interaction is got over
Small, inter-system interference is smaller.In order to reduce interference, Practical Project utilization in, following methods are usually taken increase antenna every
From degree：
Method one：Increase on antenna Electromagnetic Wave Propagation passage and hinder, stop electromagnetic coupled；
Method two：Antenna orthogonal is placed, so as to reduce the coupling of the antenna of different polarised directions；
Method three：Think to open up other coupling channel, it is offset with former electromagnetic coupled.
But for method one, dual polarized antenna is integrated design in itself, can not be increased on its direction of propagation
Hinder, and dual polarized antenna has typically employed second method, and the third method is lack of consistency.
The content of the invention
The technical problems to be solved by the invention be to provide it is a kind of it is in light weight, isolation is high, and double based on photonic crystal
Polarize antenna for base station.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of Bipolarization antenna for base station based on photonic crystal, including medium substrate, the back side of medium substrate are provided with ground connection
Plate, the positive center of medium substrate are provided with two aerial arrays side by side by balun, and earth plate, antenna are extended in the bottom of balun
Array is crossed as forming a group battle array by four square dipoles, and is led to by inverted L-shaped feed probes couple feed, feed probes
Cross feed card to fix, the positive edge of medium substrate has been extends in the vertical direction photonic crystal reflection wallboard, positioned at aerial array
Between medium substrate on be extends in the vertical direction photonic crystal division board, photonic crystal reflects the lateral surface and light of wallboard
The back side of sub- crystal division board is provided with guide plate, and the medial surface of photonic crystal reflection wallboard, the front of photonic crystal division board are corresponding
The position of guide plate is respectively equipped with the metal patch of some periodic arrangements, and conductive via is provided between metal patch and guide plate.
The metal patch includes square central part, and conductive via is located at the center of central part, each drift angle of central part
Place is provided with L-shaped metal micro-strip line, is arranged between metal micro-strip line in clockwise direction.
Compared with prior art, it is an advantage of the invention that：The antenna operating band of the present invention is 1710-2170MHz, can be real
Existing wide band effect；Wallboard is reflected by photonic crystal simultaneously and photonic crystal division board reduces the propagation of surface wave, so as to
Reduce the coupling between aerial array, isolation improves 6-8dB, and the gross weight of antenna is substantially reduced.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of metal patch in the present invention.
Wherein, 1, dipole, 2, feed probes, 3, feed card, 4, balun, 5, metal patch, 51, central part, 52, metal
Microstrip line, 6, conductive via, 7, earth plate, 8, medium substrate, 9, photonic crystal reflection wallboard, 91, guide plate, 10, photonic crystal
Division board.
Embodiment：
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
The present invention rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are each to the present invention's
The modification of the kind equivalent form of value falls within the application appended claims limited range.
As shown in figure 1, a kind of Bipolarization antenna for base station based on photonic crystal of the embodiment of the present invention, including FR4 media
Substrate 8, size are the mm of 280mm * 160mm * 2, and the back side of medium substrate 8 is provided with earth plate 7,8 positive center of medium substrate
Two aerial arrays are provided with by balun 4 side by side, earth plate 7 is extended in the bottom of balun 4, and aerial array is by four square idols
Extremely son 1 is crossed as forming a group battle array, and carries out couple feed by two inverted L-shaped feed probes 2, and feed probes 2 pass through feed
Card 3 is fixed, and 8 positive edge of medium substrate is extends in the vertical direction the photonic crystal reflection wallboard 9 of FR4 materials, positioned at day
The photonic crystal division board 10 of FR4 materials is extends in the vertical direction on medium substrate 8 between linear array, both are at thickness
2mm, the lateral surface of photonic crystal reflection wallboard 9 and the back side of photonic crystal division board 10 are provided with guide plate 91, and photonic crystal is anti-
The medial surface for penetrating wallboard 9 corresponds to metal patch 5 of the position provided with periodic arrangement of guide plate 91, wherein, two long side faces are 2*
24 arrays, two short side faces are 2*12 arrays, and the position of the corresponding guide plate 91 in front of photonic crystal division board 10 is provided with 2*12 gold
Belong to the array of paster 5, conductive via 6 is provided between each metal patch 5 and guide plate 91.
Further, as shown in Fig. 2 in the present embodiment, metal patch 5 includes square central part 51, radius is
0.3mm conductive via 6 is located at the center of central part 51, and each vertex of central part 51 is provided with the metal micro-strip line 52 of L-shaped, gold
In arranging clockwise between category microstrip line 52, the metal micro-strip line 52 divides three sections of root, pars intermedia and afterbody, root depth
Lx3 is 0.9mm, and pars intermedia length lx2 is 8.025mm, and tail length lx1 is 9mm, and the spacing g between metal patch 5 is
0.75mm。
Two aerial arrays are accessed into feeding network using 50 Ω coaxial lines, it is middle to use two for the effect of impedance matching
The impedance transformer of individual λ/4, as a result show, the working band of the present embodiment is 1710-2170MHz, the 2G/3G of the country can be covered
Frequency range, realize wide band effect；In addition, the present embodiment is reduced using the reflection wallboard 9 based on photonic crystal and division board 10
The propagation of surface wave, so as to reduce the coupling between aerial array so that the more traditional metal aluminum sheet aerial array of isolation by
26.3dB brings up to 32.5 dB, and isolation improves 6.2 dB, while causes the gross weight of antenna to reduce 168g.
Claims (1)
1. a kind of Bipolarization antenna for base station based on photonic crystal, including medium substrate, the back side of the medium substrate, which is provided with, to be connect
Floor, it is characterised in that：The positive center of medium substrate is provided with two aerial arrays side by side by balun, the balun
Earth plate is extended in bottom, and the aerial array is crossed as forming a group battle array by four square dipoles, and is presented by inverted L-shaped
Electric probe couple feed, the feed probes are fixed by feeding card, and the positive edge of medium substrate vertically prolongs
Stretching has photonic crystal to reflect wallboard, and photonic crystal has been extends in the vertical direction on the medium substrate between the aerial array
Division board, the lateral surface of the photonic crystal reflection wallboard and the back side of photonic crystal division board are provided with guide plate, the photon
The medial surface of crystal reflection wallboard, the position of the corresponding guide plate in the front of photonic crystal division board are respectively equipped with some periodic arrangements
Metal patch, conductive via is provided between the metal patch and guide plate；The metal patch includes square central part, institute
The center that conductive via is located at central part is stated, each vertex of the central part is provided with L-shaped metal micro-strip line, the metal micro-strip
In arrangement clockwise between line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455224.6A CN105006650B (en) | 2015-07-30 | 2015-07-30 | A kind of Bipolarization antenna for base station based on photonic crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455224.6A CN105006650B (en) | 2015-07-30 | 2015-07-30 | A kind of Bipolarization antenna for base station based on photonic crystal |
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| Publication Number | Publication Date |
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| CN105006650A CN105006650A (en) | 2015-10-28 |
| CN105006650B true CN105006650B (en) | 2018-03-09 |
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| CN201510455224.6A Active CN105006650B (en) | 2015-07-30 | 2015-07-30 | A kind of Bipolarization antenna for base station based on photonic crystal |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261829B (en) * | 2015-11-09 | 2018-06-12 | 中天宽带技术有限公司 | It is a kind of high front and rear to compare Bipolarization antenna for base station |
| CN105633574A (en) * | 2016-01-12 | 2016-06-01 | 张晓燕 | Electromagnetic band gap structure based dual-frequency microstrip array antenna with high isolation |
| CN105552543A (en) * | 2016-01-18 | 2016-05-04 | 张晓燕 | Base station antenna for 2G/3G frequency band based on electromagnetic band gap reflection base plate |
| CN107623187A (en) * | 2016-07-14 | 2018-01-23 | 上海诺基亚贝尔股份有限公司 | Microstrip antenna, aerial array and microstrip antenna manufacture method |
| WO2018053698A1 (en) * | 2016-09-21 | 2018-03-29 | 广东通宇通讯股份有限公司 | Antenna, mimo antenna, and isolation member used to reduce antenna mutual coupling |
| CN107240770B (en) * | 2017-05-10 | 2019-11-26 | 哈尔滨工程大学 | A kind of periodic spatial wave resistance gear decoupling arrangements for micro-strip antenna array |
| CN107634324A (en) * | 2017-08-22 | 2018-01-26 | 深圳市深大唯同科技有限公司 | A kind of directional diagram electricity adjusts circular polarisation dipole antenna |
| CN108493593B (en) * | 2018-05-21 | 2023-10-13 | 南京信息工程大学 | Polarization reconfigurable antenna array based on feed network |
| CN110649376B (en) * | 2019-09-06 | 2023-06-09 | 维沃移动通信有限公司 | Antenna and electronic equipment |
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| WO2013027029A1 (en) * | 2011-08-24 | 2013-02-28 | Antenova Limited | Antenna isolation using metamaterial |
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Effective date of registration: 20191113 Address after: 226400 Zhongtian Industrial Zone, Hekou Town, Rudong County, Jiangsu, Nantong Co-patentee after: Zhongtian Communication Technology Co., Ltd Patentee after: Zhongtian Broadband Technology Co., Ltd. Address before: 226400 Zhongtian Industrial Zone, Hekou Town, Rudong County, Jiangsu, Nantong Patentee before: Zhongtian Broadband Technology Co., Ltd. |
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