CN105006650A - Dual-polarization base station antenna based on photonic crystals - Google Patents
Dual-polarization base station antenna based on photonic crystals Download PDFInfo
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- CN105006650A CN105006650A CN201510455224.6A CN201510455224A CN105006650A CN 105006650 A CN105006650 A CN 105006650A CN 201510455224 A CN201510455224 A CN 201510455224A CN 105006650 A CN105006650 A CN 105006650A
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Abstract
The invention discloses a dual-polarization base station antenna based on photonic crystals. The dual-polarization base station antenna comprises a dielectric substrate. A grounded plate is arranged on the back of the dielectric substrate. Two antenna arrays are arranged side by side at the center of the front through a balun. A photonic crystal reflection panel extends along the vertical direction on the edge of the front of the dielectric substrate. A photonic crystal separation plate extends along the vertical direction on the dielectric substrate between the antenna arrays. Guide plates are arranged on the outer side of the photonic crystal reflection panel and the back of the photonic crystal separation plate. A number of metal patches which are periodically arranged are respectively arranged on the inner side of the photonic crystal reflection panel and positions corresponding to the guide plates on the front of the photonic crystal separation plate. Conductive through holes are arranged between the metal patches and the guide plates. According to the antenna provided by the invention, a broadband effect is realized; through the photonic crystal reflection panel and the photonic crystal separation plate, surface wave propagation can be reduced; coupling between the antenna arrays is reduced; and the total weight of the antenna is greatly reduced.
Description
Technical field
The invention belongs to wireless communication technology field, be specifically related to a kind of Bipolarization antenna for base station based on photonic crystal.
Background technology
Along with the fast development of wireless communication technology, the simultaneous situation of multiple communication standard is inevitable, simultaneously because people are to the conflict of the worry of aerial radiation and original base station location, make the addressing of new antenna for base station more and more difficult, therefore, design and cover more broadband and can adapt to the antenna for base station of more multi-modulation scheme, effectively can solve a difficult problem for base station selection, save a large amount of resources.Moreover the volume due to antenna for base station is comparatively large and weight is also comparatively large, and cause the cost of installation and difficulty also correspondingly to increase, therefore, the weight alleviating antenna under the prerequisite ensureing antenna for base station performance is of great practical significance as far as possible.
Isolation between antennas is the important parameter of the degree that influences each other between embodiment antenna, and isolation is higher, and interact less, inter-system interference is less.In order to reduce interference, in Practical Project uses, usually take following methods to increase isolation between antennas:
Method one: increase on antenna electric electromagnetic wave propagation passage and hinder, block electromagnetic is coupled;
Method two: antenna orthogonal is placed, thus reduces the coupling of the antenna of different polarised direction;
Method three: think and open up other coupling channel, makes itself and former electromagnetic coupled offset.
But for method one, dual polarized antenna itself is integrated design, obstruction cannot be increased on its direction of propagation, and dual polarized antenna generally have employed second method, and the third method is lack of consistency.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of lightweight, isolation is high, and based on the Bipolarization antenna for base station of photonic crystal.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of Bipolarization antenna for base station based on photonic crystal, comprise medium substrate, the back side of medium substrate is provided with ground plate, the central authorities in medium substrate front are provided with two aerial arrays side by side by Ba Lun, ground plate is extended in the bottom of Ba Lun, aerial array is crossed as by four square dipoles and forms group battle array, and by inverted L-shaped feed probes couple feed, feed probes is fastened by feed, the edge in medium substrate front is vertically extended with photonic crystal reflection wallboard, medium substrate between aerial array is vertically extended with photonic crystal division board, the photonic crystal reflection lateral surface of wallboard and the back side of photonic crystal division board are provided with guide plate, the medial surface of photonic crystal reflection 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 arrangement, conductive via is provided with between metal patch and guide plate.
Described metal patch comprises square central part, and conductive via is located at the central authorities of central part, and each drift angle place of central part is provided with L shape metal micro-strip line, the arrangement in clockwise direction between metal micro-strip line.
Compared with prior art, advantage of the present invention is: antenna operating band of the present invention is 1710-2170MHz, can realize wide band effect; Reduce surperficial wave propagation by photonic crystal reflection wallboard and photonic crystal division board simultaneously, thus reduce the coupling between aerial array, isolation improves 6-8dB, and the total weight of antenna is reduced greatly.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is 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, Ba Lun, 5, metal patch, 51, central part, 52, metal micro-strip line, 6, conductive via, 7, ground plate, 8, medium substrate, 9, photonic crystal reflection wallboard, 91, guide plate, 10, photonic crystal division board.
Embodiment:
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's 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, comprise FR4 medium substrate 8, be of a size of 280mm * 160mm * 2 mm, the back side of medium substrate 8 is provided with ground plate 7, the central authorities in medium substrate 8 front are provided with two aerial arrays side by side by Ba Lun 4, ground plate 7 is extended in the bottom of Ba Lun 4, aerial array is crossed as by four square dipoles 1 and forms group battle array, and carry out couple feed by two inverted L-shaped feed probes 2, feed probes 2 is fixed by feed card 3, the edge in medium substrate 8 front is vertically extended with the photonic crystal reflection wallboard 9 of FR4 material, medium substrate 8 between aerial array is vertically extended with the photonic crystal division board 10 of FR4 material, both are 2mm by thickness, the photonic crystal reflection lateral surface of wallboard 9 and the back side of photonic crystal division board 10 are provided with guide plate 91, the position of the corresponding guide plate 91 of medial surface of photonic crystal reflection wallboard 9 is provided with the metal patch 5 of periodic arrangement, wherein, face, two long limits is 2*24 array, two minor face faces are 2*12 array, the position of the corresponding guide plate 91 in front of photonic crystal division board 10 is provided with 2*12 metal patch 5 array, conductive via 6 is provided with between each metal patch 5 and guide plate 91.
Further, as shown in Figure 2, in the present embodiment, metal patch 5 comprises square central part 51, radius is the central authorities that the conductive via 6 of 0.3mm is located at central part 51, each drift angle place of central part 51 is provided with the metal micro-strip line 52 of L shape, the arrangement in clockwise direction between metal micro-strip line 52, this metal micro-strip line 52 points of roots, pars intermedia and afterbodys three sections, root depth lx3 is 0.9mm, pars intermedia length lx2 is 8.025mm, tail length lx1 is 9mm, and the spacing g between metal patch 5 is 0.75mm.
Adopt 50 Ω coaxial lines by two aerial array access feeding networks, middle use two λ/4 impedance transformers in order to the effect of impedance matching, result shows, and the working band of the present embodiment is 1710-2170MHz, domestic 2G/3G frequency range can be covered, realize wide band effect; In addition, the present embodiment adopts and reduces surperficial wave propagation based on the reflection wallboard 9 of photonic crystal and division board 10, thus the coupling between minimizing aerial array, the metal aluminum sheet aerial array making isolation more traditional brings up to 32.5 dB by 26.3dB, isolation improves 6.2 dB, makes the total weight of antenna reduce 168g simultaneously.
Claims (2)
1. the Bipolarization antenna for base station based on photonic crystal, comprise medium substrate, the back side of described medium substrate is provided with ground plate, it is characterized in that: the central authorities in described medium substrate front are provided with two aerial arrays side by side by Ba Lun, ground plate is extended in the bottom of described Ba Lun, described aerial array is crossed as by four square dipoles and forms group battle array, and by inverted L-shaped feed probes couple feed, described feed probes is fastened by feed, the edge in described medium substrate front is vertically extended with photonic crystal reflection wallboard, medium substrate between described aerial array is vertically extended with photonic crystal division board, the described photonic crystal reflection lateral surface of wallboard and the back side of photonic crystal division board are provided with guide plate, the medial surface of described photonic crystal reflection 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 arrangement, conductive via is provided with between described metal patch and guide plate.
2. a kind of Bipolarization antenna for base station based on photonic crystal according to claim 1, it is characterized in that: described metal patch comprises square central part, described conductive via is located at the central authorities of central part, each drift angle place of described central part is provided with L shape metal micro-strip line, the arrangement in clockwise direction between described metal micro-strip line.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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| CN105006650A true CN105006650A (en) | 2015-10-28 |
| CN105006650B CN105006650B (en) | 2018-03-09 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105261829A (en) * | 2015-11-09 | 2016-01-20 | 中天宽带技术有限公司 | High front-to-back ratio dual polarization base station antenna |
| 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 |
| CN105633574A (en) * | 2016-01-12 | 2016-06-01 | 张晓燕 | Electromagnetic band gap structure based dual-frequency microstrip array antenna with high isolation |
| CN107240770A (en) * | 2017-05-10 | 2017-10-10 | 哈尔滨工程大学 | A kind of periodic spatial wave resistance for micro-strip antenna array keeps off decoupling arrangements |
| 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 |
| 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 |
| CN108493593A (en) * | 2018-05-21 | 2018-09-04 | 南京信息工程大学 | A kind of polarization reconfigurable antenna array based on feeding network |
| US20190288397A1 (en) * | 2016-07-14 | 2019-09-19 | Alcatel Lucent | Microstrip antenna, antenna array and method of manufacturing microstrip antenna |
| CN110649376A (en) * | 2019-09-06 | 2020-01-03 | 维沃移动通信有限公司 | Antenna and electronic equipment |
| CN114421135A (en) * | 2022-01-12 | 2022-04-29 | 深圳华大北斗科技股份有限公司 | Rotational symmetric staggered loop architecture antenna |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261829A (en) * | 2015-11-09 | 2016-01-20 | 中天宽带技术有限公司 | High front-to-back ratio dual polarization base station antenna |
| 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 |
| US20190288397A1 (en) * | 2016-07-14 | 2019-09-19 | Alcatel Lucent | Microstrip antenna, antenna array and method of manufacturing microstrip antenna |
| 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 |
| CN107240770A (en) * | 2017-05-10 | 2017-10-10 | 哈尔滨工程大学 | A kind of periodic spatial wave resistance for micro-strip antenna array keeps off decoupling arrangements |
| 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 |
| CN107634324B (en) * | 2017-08-22 | 2024-05-24 | 中天宽带技术有限公司 | Directional diagram electrically-tuned circularly-polarized dipole antenna |
| 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 |
| CN108493593A (en) * | 2018-05-21 | 2018-09-04 | 南京信息工程大学 | A kind of polarization reconfigurable antenna array based on feeding network |
| CN108493593B (en) * | 2018-05-21 | 2023-10-13 | 南京信息工程大学 | Polarization reconfigurable antenna array based on feed network |
| CN110649376A (en) * | 2019-09-06 | 2020-01-03 | 维沃移动通信有限公司 | Antenna and electronic equipment |
| CN114421135A (en) * | 2022-01-12 | 2022-04-29 | 深圳华大北斗科技股份有限公司 | Rotational symmetric staggered loop architecture antenna |
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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. |