CN206585077U - A kind of broadband dual polarized antenna array - Google Patents
A kind of broadband dual polarized antenna array Download PDFInfo
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- CN206585077U CN206585077U CN201621447904.XU CN201621447904U CN206585077U CN 206585077 U CN206585077 U CN 206585077U CN 201621447904 U CN201621447904 U CN 201621447904U CN 206585077 U CN206585077 U CN 206585077U
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Abstract
The utility model discloses a kind of broadband dual polarized antenna array being applied in LTE radio communication system base stations, unit includes medium substrate, c-type symmetrical dipole, coaxial feed and the coaxial crossover subs of SMA, c-type symmetrical dipole metal patch is respectively placed in the two sides of medium substrate, and the symmetrical dipole on medium substrate two sides is located at by coaxial line and metal band connection.The utility model is for the problem of existing antenna for base station volume is big, section is high, improve the cross polarization of antenna by introducing metal column and ensure that main radiation direction penetrates direction without departing from side, antenna array array spacing is rationally designed based on the part coupling between antenna element again, working band is expanded, and the impedance matching property in working band is improved, it is achieved thereby that the miniaturization of aerial array.Compared with prior art, the utility model is simple in construction, is easily worked, small volume and the wireless communication system that can realize wide-band, reduces the antenna complex of communication system.
Description
Technical field
The utility model belongs to wireless communication field, and in particular to a kind of broadband dual polarized antenna array.
Background technology
With developing rapidly for GSM, the complexity more and more higher of system, antenna is used as its important composition portion
Divide and be also faced with acid test.At present, antenna just develops towards broadband, miniaturization, efficient direction.How to design
The antenna of high-performance, low cost, also has become the important research direction of antenna designers.In recent years, due to dual polarized antenna
Itself distinctive advantage, can receive all polarization information in electromagnetic wave.There is strong anti-interference because of it, high system sensitivity and energy
The abilities such as polarization system are constituted, and then, obtain the extensive concern of scientific research personnel.Further, since dual polarized antenna is same
Bandwidth interior energy launches two kinds of signals, and is operated in simultaneously under transmission duplex pattern, can save the antenna number of single directional base station
Amount, therefore, dual polarized antenna have become the preferred antenna in the design of mobile base station.However, the base station occurred in the form of an array
Volume is larger shared by antenna, and this certainly will carry out certain difficulty to fixing band is installed, while visual pollution can be inevitably caused,
Therefore, broadband, the miniaturization of antenna have become an important research topic in field of antenna.
Utility model content
The utility model purpose is to solve that prior art is present that not enough there is provided a kind of small sized wide-band double polarized antenna
Row.It is different from traditional array coupling between reduction array element of trying one's best, the coupling of the utility model reasonably between range site, expansion antenna
The working frequency range of array, while improving the impedance matching property in working band, so as to realize the miniaturization of aerial array.
A kind of minimized wide-band dual-polarized antenna array that the utility model is provided, drops on the premise of antenna performance is ensured
The size of low antenna, can be widely applied to antenna of mobile communication base station.
To reach above-mentioned purpose, the utility model is implemented according to following technical scheme：
A kind of broadband dual polarized antenna array, including multiple dual polarization dipole sub-antenna a period of time units into array arrangement；
Described dual polarization dipole sub-antenna a period of time unit includes two dipoles, two metal bands, medium substrate, two coaxial electricals
Cable, two metal columns, reflecting plates；Two coaxial cables and two metal columns are located between medium substrate and reflecting plate, two idols
Extremely son is mutually perpendicular to, and respectively be located at medium substrate upper and lower surface, each dipole include two type metal patch, often
It is individual that ［ type metal patch is an arm of dipole；Two metal bands are located at the upper and lower surface of medium substrate respectively；Metal column with
Coaxial cable is on dipole Central Symmetry；In medium substrate upper surface, the crust of the first coaxial cable connects the second dipole
An arm, inner core connects another arm by the first metal band；In medium substrate lower surface, the crust of the second coaxial cable
An arm of the first dipole is connected by the second metal band, inner core connects another arm.
The medium substrate（1）Upper surface be provided with the first dipole（3）, the first metal band（7）, lower surface setting
There is the second dipole（4）, the second metal band（8）；First dipole（3）With the second dipole（4）Include two ［ type metals
［ outwardly back to placement, each ［ type metal patch is the idol to the opening of type metal patch to two in paster, each dipole
An extremely sub arm；First metal band（7）End and the inner core of the first coaxial cable weld together, while connection second
Dipole（4）An arm（41）, the second dipole（4）Another arm（42）It is connected with the crust of the first coaxial cable；The
Two metal bands（8）End and the crust of the second coaxial cable weld together, while connect the first dipole（3）It is therein
One arm（32）, the second dipole（3）Another arm（31）It is connected with the inner core of the second coaxial cable.
The medium substrate（1）Use dielectric constant for 8 rectangular ceramic sheet material, thickness is 1.5mm, is situated between apart from rectangle
Scutum is highly to set one block of rectangular reflection plate to obtain directional radiation properties at H=32mm.
First metal band（7）With the second metal band（8）Width be 2mm.
Spacing between a period of time unit is S, and the scope of the S is 0.55-0.7, is the centre frequency of working frequency range.
The radius of the metal column is equal with the external diameter of coaxial cable.
Compared with prior art, the utility model has the advantages that：
1st, the utility model utilizes type metal ribbon structure, and oscillator arms can be controlled by the width for adjusting metal band
Electromagnetic coupling strengths, to obtain preferable matching properties.
2nd, the utility model improves cross polarization well due to introducing and the equivalent metal column of coaxial cable radius,
So that the antenna pattern of antenna penetrates direction without deviating from side.
3rd, the utility model is due to deliberately reducing a gust spacing, so that the electromagnetic coupled between enhancing array element, improves resistance
Anti- matching, makes working frequency be moved to low frequency.
Brief description of the drawings
Fig. 1（a）、（b）、（c）Respectively the top layer top view of antenna element, side view and bottom upward view；
Fig. 2 schemes for the reflection coefficient of port loss of antenna element；
Fig. 3 is the interport isolation figure of antenna element；
Fig. 4 is horizontal radiation pattern of the antenna element in 2.2GHz；
Fig. 5 is elevation radiation patytern of the antenna element in 2.2GHz；
Fig. 6 is top layer top view, side view and the bottom upward view of aerial array；
Fig. 7 is the active standing wave pattern of face+45 ° of polarized antenna arrays ports of battle array；
Fig. 8 is directional diagram of+45 ° of polarized antenna arrays of face battle array at 2.2GHz；
Fig. 9 is the active standing wave pattern of face -45 ° of polarized antenna arrays ports of battle array；
Figure 10 is directional diagram of -45 ° of polarized antenna arrays of face battle array at 2.2GHz；
Illustrate：1st, FR4 medium substrates；2nd, reflecting plate；3rd, the first dipole；4th, the second dipole；5th, coaxial cable；
6 first metal columns；7th, the first metal band；8th, the second metal band；9th, array reflecting plate；31st, the first dipole radiation paster
One arm；32nd, first another arm of dipole radiation paster；41st, the arm of the second dipole radiation paster one；42nd, the second dipole radiation
Another arm of paster；51st, the first SMA ports；52nd, the 2nd SMA ports；61st, the second metal column.
Embodiment
By existing HFSS software emulations, drawn S parameter curve of a period of time of the present utility model at 2.2GHz frequencies,
Isolation, active standing wave and antenna pattern.
Below by accompanying drawing, the utility model to be described in detail：
A period of time unit of the present utility model includes two dipoles, two metal bands, medium substrate, two coaxial electricals
Cable, two metal columns, reflecting plates；Two doublet units are mutually perpendicular to and are respectively placed in medium both sides, form dual polarization
Antenna element.
As shown in Figure 1：Dipole antenna unit includes a pair of ［ type electrode couple（3）With（4）, metal band（7）With（8）、
Medium substrate（1）, coaxial cable（5）Metal column（6）, reflecting plate（2）, ［ type electrode couple is respectively positioned at dielectric-slab wherein two
Upper and lower surface；Metal band is located at the upper and lower surface of dielectric-slab respectively, for feeding and strengthening electromagnetic coupled；Metal column with it is coaxial
Cable is on dipole Central Symmetry, for improving the cross polarization of antenna, while ensure that the greatest irradiation direction of antenna not
Side can be deviateed and penetrate direction；First metal column（6）One end the first metal band for passing through medium substrate upper surface（7）It is same with first
The inner core of shaft cable is connected, and the other end is fixed on reflecting plate（2）On；Second metal column（61）One end by with medium substrate
Second metal band on surface（8）It is connected with the crust of the second coaxial cable, the other end is fixed on reflecting plate（2）On.
As shown in fig. 6, the dual-polarization cells formation 1*10 faces battle array by more than, it is anti-that dual-polarized antenna array mainly includes array
Penetrate plate（9）With 10 dual polarized antenna units, by controlling element spacing S come the stiffness of coupling between control unit and unit,
Using electromagnetic coupling effect formation capacitive reactance component, to offset the induction reactance component between antenna element and reflecting plate, so as to realize
The band spread of aerial array, working band can improve the impedance matching property in working band to low frequency extension and simultaneously, real
Existing low section broad-band antenna array, the miniaturization of base-station antenna array is realized by reducing antenna section height and array element spacing.
Fig. 1 and Fig. 6 be respectively double polarized antenna subelement and array, the wherein adjacent dual-polarization cells of each two apart
S=90mm, each dual-polarization cells are that doublet unit as shown in Figure 1 is formed, in Rectangular Enclosure with Participating Media substrate（1）Upper and lower surface
The metal band of each dual-polarization cells is printed with respectively（7）With（8）And ［ type electrode couple（3）With（4）；Metal band knot
Structure passes through its width, it is ensured that antenna has preferable impedance matching property in certain working frequency range；Metal band structure（8）
End and the crust of the second coaxial cable weld together, while connect the first ［ one of arm of type dipole（32）, the
One ［ type dipole other in which arm（31）With the second coaxial cable（5）Inner core is connected, metal band structure（7）End with
The inner core of first coaxial cable welds together, while connecting the second ［ one of arm of type dipole（42）, the second ［ type dipole
Sub- other in which arm（41）Be connected with the first coaxial cable crust, Rectangular Enclosure with Participating Media substrate use dielectric constant for 8 ceramic wafer
Material, thickness is 1.5mm, and highly directed radiation spy is being obtained to place one block of rectangular reflection plate at H=32mm apart from rectangular dielectric plate
Property.Reference picture 1, metal band（7）With（8）Width be 2mm；The first SMA ports of first coaxial cable correspondence（51）, second
The 2nd SMA ports of coaxial cable correspondence（52）.
Fig. 2 is lost for the reflection coefficient of port of antenna element, using less than -10 dB as standard, it is selected bipolar in embodiment
Change antenna element, -45 ° of poliarizing antenna working frequency range are 1.7GHz-2.75GHz, and+45 ° of poliarizing antenna working frequency range are 1.7GHz-
2.9GHz, its public relative bandwidth is 47.2%.
Fig. 3 is the isolation between the interport isolation of antenna element, two input ports of selected dual-polarization cells
Degree is in whole working frequency range（1.88-2.69GHz）Inside be above 30 dB, show to have between dual polarized antenna two-port it is higher every
From degree, it is ensured that do not interfere with each other during two port workings.
Fig. 4 antenna elements are in 2.2GHz horizontal radiation pattern, and greatest irradiation direction as seen from the figure is put down with Z axis all the time
OK, deviate without any, cross polarization is less than main polarization at least 20 dB, shows that dual-polarization cells have relatively low cross polarization.
Fig. 5 antenna elements are in 2.2GHz elevation radiation patytern, and greatest irradiation direction as seen from the figure is put down with Z axis all the time
OK, deviate without any, cross polarization is less than main polarization at least 30 dB, shows that dual-polarization cells have relatively low cross polarization.
The active standing wave of Fig. 7 faces+45 ° of polarized antenna arrays ports of battle array, it can be seen that the active standing wave of matrix ports exists
1.88 in 2.69GHz frequency ranges all substantially below 1.5, high frequency treatment is slightly higher than 1.5, but it has substantially no effect on the basic nature of array
Energy.
The maximum of directional diagram, as can be seen from the figure array of+45 ° of polarized antenna arrays of Fig. 8 faces battle array at 2.2GHz
Gain is all higher than 17dBi, and horizontal lobe width is all higher than 65 degree.Greatest irradiation direction is parallel with Z axis all the time simultaneously, does not appoint
What deviates, front and rear ratio about 25dB.
The active standing wave of Fig. 9 faces -45 ° of polarized antenna arrays ports of battle array, it can be seen that the active standing wave of matrix ports exists
1.88 in 2.69GHz frequency ranges all substantially below 1.5, high frequency treatment is slightly higher than 1.5, but it has substantially no effect on the basic nature of array
Energy.
The maximum of directional diagram, as can be seen from the figure array of -45 ° of polarized antenna arrays of Figure 10 faces battle array at 2.2GHz
Gain is all higher than 17.5dBi, and horizontal lobe width is all higher than 65 degree.Greatest irradiation direction is parallel with Z axis all the time simultaneously, does not have
It is any to deviate, front and rear ratio about 20dB.
The technical solution of the utility model is not limited to the limitation of above-mentioned specific embodiment, every according to skill of the present utility model
The technology deformation that art scheme is made, each falls within protection domain of the present utility model.
Claims (6)
1. a kind of broadband dual polarized antenna array, it is characterised in that：Including multiple dual polarization dipole sub-antennas into array arrangement
A period of time unit；Described dual polarization dipole sub-antenna a period of time unit include two dipoles, two metal bands, medium substrate,
Two coaxial cables, two metal columns, reflecting plates；Two coaxial cables and two metal columns be located at medium substrate and reflecting plate it
Between, two dipoles are mutually perpendicular to and are located at the upper and lower surface of medium substrate respectively, and each dipole includes two " ［ " type gold
Belong to paster, each " ［ " type metal patch is an arm of dipole；Two metal bands are located at the upper following table of medium substrate respectively
Face；Metal column is with coaxial cable on dipole Central Symmetry；In medium substrate upper surface, the crust of the first coaxial cable is connected
One arm of the second dipole, inner core connects another arm by the first metal band；It is coaxial in medium substrate lower surface, second
The crust of cable connects an arm of the first dipole by the second metal band, and inner core connects another arm.
2. a kind of broadband dual polarized antenna array according to claim 1, it is characterised in that：The medium substrate（1）'s
Upper surface is provided with the first dipole（3）, the first metal band（7）, lower surface is provided with the second dipole（4）, the second metal
Band（8）；First dipole（3）With the second dipole（4）Include two " two in ［ " type metal patch, each dipole
It is individual that " outwardly back to placement, each " ［ " type metal patch is an arm of the dipole to the opening of ［ " type metal patch；First
Metal band（7）End and the inner core of the first coaxial cable weld together, while connect the second dipole（4）An arm
（41）, the second dipole（4）Another arm（42）It is connected with the crust of the first coaxial cable；Second metal band（8）End
The crust with the second coaxial cable is held to weld together, while connecting the first dipole（3）One of arm（32）, first is even
It is extremely sub（3）Another arm（31）It is connected with the inner core of the second coaxial cable.
3. a kind of broadband dual polarized antenna array according to claim 2, it is characterised in that：The medium substrate（1）Adopt
With the rectangular ceramic sheet material that dielectric constant is 8, thickness is 1.5mm, is being highly setting one at H=32mm apart from rectangular dielectric plate
Block rectangular reflection plate is to obtain directional radiation properties.
4. a kind of broadband dual polarized antenna array according to claim 2, it is characterised in that：First metal band
（7）With the second metal band（8）Width be 2mm.
5. a kind of broadband dual polarized antenna array according to claim 2, it is characterised in that：Between a period of time unit
Spacing is S, and the scope of the S is 0.55-0.7, is the centre frequency of working frequency range.
6. a kind of broadband dual polarized antenna array according to claim 2, it is characterised in that：The radius of the metal column with
The external diameter of coaxial cable is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621447904.XU CN206585077U (en) | 2016-12-27 | 2016-12-27 | A kind of broadband dual polarized antenna array |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621447904.XU CN206585077U (en) | 2016-12-27 | 2016-12-27 | A kind of broadband dual polarized antenna array |
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| CN206585077U true CN206585077U (en) | 2017-10-24 |
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| CN201621447904.XU Active CN206585077U (en) | 2016-12-27 | 2016-12-27 | A kind of broadband dual polarized antenna array |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109301472A (en) * | 2018-10-31 | 2019-02-01 | 南通至晟微电子技术有限公司 | Double frequency-band millimeter wave antenna |
| CN109638465A (en) * | 2018-12-17 | 2019-04-16 | 中国人民解放军国防科技大学 | Waveguide high-power protection device |
| CN109713441A (en) * | 2018-12-29 | 2019-05-03 | 瑞声精密制造科技(常州)有限公司 | A kind of antenna element and array antenna |
| CN110048211A (en) * | 2019-04-15 | 2019-07-23 | 深圳市信维通信股份有限公司 | Wideband multi-resonant 5G antenna system and base station |
| CN113300085A (en) * | 2021-05-25 | 2021-08-24 | 安徽大学 | 3G/4G/5G-oriented small broadband dual-polarized base station antenna unit |
| WO2022193423A1 (en) * | 2021-03-15 | 2022-09-22 | 罗森伯格技术有限公司 | Radiating component for use in antenna and antenna comprising the radiating component |
| CN116435772A (en) * | 2023-06-15 | 2023-07-14 | 东集技术股份有限公司 | Miniaturized low-profile dual polarized antenna, antenna assembly and PDA equipment |
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- 2016-12-27 CN CN201621447904.XU patent/CN206585077U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301472A (en) * | 2018-10-31 | 2019-02-01 | 南通至晟微电子技术有限公司 | Double frequency-band millimeter wave antenna |
| CN109638465A (en) * | 2018-12-17 | 2019-04-16 | 中国人民解放军国防科技大学 | Waveguide high-power protection device |
| CN109638465B (en) * | 2018-12-17 | 2021-01-01 | 中国人民解放军国防科技大学 | Waveguide high-power protection device |
| CN109713441A (en) * | 2018-12-29 | 2019-05-03 | 瑞声精密制造科技(常州)有限公司 | A kind of antenna element and array antenna |
| CN110048211A (en) * | 2019-04-15 | 2019-07-23 | 深圳市信维通信股份有限公司 | Wideband multi-resonant 5G antenna system and base station |
| CN110048211B (en) * | 2019-04-15 | 2024-03-19 | 深圳市信维通信股份有限公司 | Broadband multi-resonance 5G antenna system and base station |
| WO2022193423A1 (en) * | 2021-03-15 | 2022-09-22 | 罗森伯格技术有限公司 | Radiating component for use in antenna and antenna comprising the radiating component |
| CN113300085A (en) * | 2021-05-25 | 2021-08-24 | 安徽大学 | 3G/4G/5G-oriented small broadband dual-polarized base station antenna unit |
| CN116435772A (en) * | 2023-06-15 | 2023-07-14 | 东集技术股份有限公司 | Miniaturized low-profile dual polarized antenna, antenna assembly and PDA equipment |
| CN116435772B (en) * | 2023-06-15 | 2023-09-01 | 东集技术股份有限公司 | Miniaturized low-profile dual polarized antenna, antenna assembly and PDA equipment |
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Address after: 430205 Hubei city of Wuhan province Jiangxia Hidden Dragon Island Tan lake two Road No. 1 Patentee after: CITIC Mobile Communication Technology Co., Ltd Address before: 430073 Hubei province Wuhan Dongxin East Lake high tech Development Zone, Road No. 5 Patentee before: Wuhan Hongxin Telecommunication Technologies Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
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Address after: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee after: CITIC Mobile Communication Technology Co.,Ltd. Address before: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee before: CITIC Mobile Communication Technology Co., Ltd |
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