CN104300233B - Ultra-wideband dual-polarized multi-input multi-output antenna - Google Patents
Ultra-wideband dual-polarized multi-input multi-output antenna Download PDFInfo
- Publication number
- CN104300233B CN104300233B CN201410398263.2A CN201410398263A CN104300233B CN 104300233 B CN104300233 B CN 104300233B CN 201410398263 A CN201410398263 A CN 201410398263A CN 104300233 B CN104300233 B CN 104300233B
- Authority
- CN
- China
- Prior art keywords
- guide plate
- ultra
- ground guide
- radiating curtain
- wideband dual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005855 radiation Effects 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims description 51
- 230000010287 polarization Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000009977 dual effect Effects 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses an ultra-wideband dual-polarized multi-input multi-output antenna, which comprises a reflection grounding guide plate and a radiation array arranged above the reflection grounding guide plate. The ultra-wideband dual-polarized multi-input multi-output antenna is characterized in that two baluns and two matching circuits used for connecting the baluns and two antenna outputs are arranged between the radiation array and the reflection grounding guide plate, the radiation array comprises four identical flow guide loops, the four flow guide loops are provided with a symmetry axis and connected to the tail end of the radiation array which is of a cross shape and provided with a cross-shaped trench in intersection, and each flow guide loop forms a folded dipole and a group of symmetric lines which come from the center of the radiation array and feed the folded dipole.
Description
Technical field
The present invention relates to dual-band dual-polarized antenna, more particularly to a kind of ultra-wideband dual polarization mimo antennas.
Background technology
Dual-band dual-polarized antenna is used to launching or receiving two mutually orthogonal polarization components, such as perpendicular polarisation components and water
Flat polarization components or two 45 degree of oblique angle polarization components.Modern wireless communication systems need dual-band dual-polarized antenna to answer
For entering to have more (MIMO) technology more.Multifrequency antenna will at least process two frequency ranges, typically two intermediate frequency letters relatively far apart
Number, in MIMO applications, the frequency of the high intermediate-freuqncy signal of frequency is at least 1.5 times of the low IF signal frequency of frequency.
It is well known that orientation dual-band dual-polarized antenna typically has two dual-polarization radiating units.PCT WO99/59223
The dual-band dual-polarized antenna with paster radiating element is described with the A2 of EP 106946, US 6054953 is described to have and passed through
The dual-band dual-polarized antenna of the paster radiating element that groove is excited, the double frequency of the B1 of the US 6333720 and B2 of US 6831615 descriptions
Dual polarized antenna has the crossed dipoles and the dipole square for processing low-frequency range for processing high band, US
The dual-band dual-polarized antenna of 7283101 B2 descriptions then has the ring-type spoke for processing high band crossed dipoles and processing low-frequency range
Penetrate unit；Above-mentioned antenna all has about 65 degree of 3dB lobe width.The B2 of US 6930650 and the B2 of US 7079083 are described to be had
The crossed dipoles and a kind of new radiation appliance of process low-frequency range of high frequency are processed, this antenna has 90 degree of 3dB ripples
Lobe width.
Above-mentioned antenna is respectively provided with two dual-polarization radiating units, so needing to connect antenna output and spoke using duplexer
Unit is penetrated, is exported all the way so as to the signal of two frequency ranges is combined into.First duplexer requires connect to first polarization components
Output, and second duplexer requires connect to the output of second polarization components, therefore known these antenna is all included
Many parts, it is sufficiently bulky.
The content of the invention
For the shortcoming of prior art, it is an object of the invention to provide a kind of simple structure, the ultra-wideband of small volume are bipolar
Change mimo antennas.
To achieve these goals, the technical scheme is that：A kind of ultra-wideband dual polarization mimo antennas, including
Reflecting ground guide plate and the radiating curtain being arranged on above the reflecting ground guide plate, lead in the radiating curtain and reflecting ground
Two baluns, and two match circuits for being used to connect balun and two antenna outputs, the radiation battle array are provided between plate
Row include four identical water conservancy diversion loops, four water conservancy diversion loops there is the axis of symmetry and be connected to cross shaped head and
The end of the radiating curtain with cruciate groove in intersection, each water conservancy diversion loop formed a folded dipole and one group from
The line of symmetry to folded dipole feed at the radiating curtain center.
Further, the balun includes a long coaxial cable and a short coaxial cable, by external conductor and one
Metal dish connects, and the bottom of the external conductor of the long coaxial cable is connected with the reflecting ground guide plate, its inner conductor
Bottom is connected with the strip line of the match circuit；The top of the external conductor of coaxial cable with the radiating curtain center
The connected end in water conservancy diversion loop is connected, and the top of the inner conductor of the coaxial cable being arranged on same axis of symmetry is by radiation
Conductive bridges above array are connected.
Further, relative with folded dipole and parallel four are provided with the plane that the folded dipole is located
Piece strap, be provided between the radiating curtain and reflecting ground guide plate four short curved conductors and with adjacent folding
The end of dipole is relative, four length of a film curved conductors is provided between radiating curtain and reflecting ground guide plate and is right against described
In the middle of folded dipole.
Further, the match circuit has more than 50 ohm and less than 50 ohmages and the banding that is together in series
Line.
Further, a dielectric substrate is provided with above the radiating curtain, the centre of the dielectric substrate has one
Hole.
Further, first conductive bridges on cross point are to be bent up, and second conductive bridges is to be turned under.
Further, the one end per a piece of short curved conductor is arranged on the top surface of the dielectric substrate, and the other end points to institute
State reflecting ground guide plate.
Further, the long curved conductor has wide sheet and arrow gauge, and is at least bent in two places.
Further, the long curved conductor is arranged on the top of the reflecting ground guide plate, and by an insulation mat
Isolate with reflecting ground guide plate.
Further, the top of the long curved conductor is correspondingly arranged with the strap, and by an insulation mat
Isolated.
Compared with prior art, the present invention replaces duplexer connection antenna output and radiating curtain by balun, significantly
Simplify structure so that the volume of antenna is reduced；By arranging strap, short curved conductor and long curved conductor, coupling is formed
Radiant body is closed, with broader lobe.
Description of the drawings
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the bottom surface structure schematic diagram of radiating curtain.
Fig. 3 is side view in Fig. 1.
Fig. 4 is the top view of Fig. 1.
Specific embodiment
Fig. 1 is referred to, the ultra-wideband dual polarization mimo antennas of present embodiment are included in reflecting ground guide plate 3, set
The radiating curtain 1 supported by four insulation mats 2 on reflecting ground guide plate 3 is put, the dielectric substrate 6 on reflecting ground guide plate 3
Bottom surface covered by conductive film, be made up of fillet 4 and wide bar 5 in two strip lines of the top surface of dielectric substrate 6, two strip lines
Define two match circuits to couple together 7a, 7b joint of balun (baluns, balun) and antenna.
Fig. 2 is referred to, the situation that radiating curtain and balun are overturn, the bottom of the dielectric substrate 8 on radiating curtain 1 is illustrated
Face is provided with four identical galvanic circles, and each galvanic circle forms folded dipole 9 and out right from radiating curtain central authorities
The line of symmetry 10 that folded dipole is fed, the four pairs of line of symmetries 10 by its adjacent end and two short coaxial cable 11a and
11b and two long coaxial cable 12a is connected with the external conductor end end of 12b.Four external conductors of these coaxial cables lead to
Cross a conductive plate 13 link together composition two vertical baluns (perpendicular baluns).Long coaxial cable 12a
Coupled together by forming U-shaped conductor 20a and 20b in cross section with the bottom of the external conductor of 12b, external conductor 20a
It is connected with a conductive film by the dielectric substrate bottom surface of metal-plated holes is covered with the bottom of 20b.Four straps
15 are arranged on around radiating curtain, are right against folded dipole at grade, each conductor 15 be connected one
The conductor of individual folded dipole has gap to be separated by.
As shown in Figure 1 and Figure 4, line of symmetry 10 is excited by conductive bridges 14a and 14b, and the inside of coaxial cable 11a and 12a is led
Body top is connected by conductive bridges 14a, and the inner conductor top of coaxial cable 11b and 12b is connected by conductive bridges 14b.Coaxially
The inner conductor bottom of cable 12a and 12b is connected to form match circuit with the head end of strip line.The other end of these strip lines is then
It is connected with the inner conductor of the 7a and 7b joints of antenna.
The conductor 16 of four bendings is arranged on around radiating curtain, vis-a-vis the adjacent end of folded dipole 9.
The top of folded dipole adjacent end, the top 16a of curved conductor is set and is fixed on an insulation mat 17.Its bottom
Portion 16b is separated by lower folding by the gap of a reflecting ground guide plate.
Four long curved conductors 18 are arranged between radiating curtain and a reflecting ground guide plate 3, and conductor 18 is by arrow gauge
18a and 18c and wide sheet 18b and 18d compositions, its top 18a is set and is fixed on an insulation mat 17, faces folding
Folded dipole 9 and strap 15, wide sheet 18b and arrow gauge 18c are arranged between radiating curtain and reflecting ground guide plate 3.Such as
Shown in Fig. 3, wide sheet 18d is arranged on the top of reflecting ground guide plate 3, is separated by an insulation mat 19 and guide plate.It is known
The lobe that the radiating curtain of antenna only has folded dipole and line of symmetry, its radiation has orthogonally polarized component, 3dB lobe width
Degree is probably 65 degree, be can only operate in a frequency range.The dual-band dual-polarized antenna example of the present invention has extra for increasing
Plus the conductor of second working frequency range of lobe width and offer.
With the strap 15 of the electromagnetic coupled of folded dipole 9 as body is guided into, along reflecting ground guide plate 3 spoke is guided
Penetrate so that the radiation signal in this direction lobe in H- planes is wider.
End and reflecting ground guide plate 3 Capacitance Coupled of the short curved conductor 16 with folded dipole 9, the end of folded dipole
End excites short curved conductor top 16a.Therefore, the electric current of radiofrequency signal flows along part 16b, and transmitting reflection is guided in generation into
The radiation of earth plate 3, its electric field vector normal is in reflecting ground guide plate.Therefore, the radiation for producing from short curved conductor 16,
Lobe in E- planes becomes wider.
The length of strap 15 and short curved conductor 16 is respectively less than 0.5 wavelength, corresponding to the intermediate frequency of high band.So
These conductors mainly produce high frequency radiation, can only produce the low frequency signal of power very little.
The length of the long curved conductor 18 being made up of wide sheet 18b and 18d and arrow gauge 18a and 18c is more than 0.3 wavelength,
Corresponding to the intermediate frequency of low-frequency range.Arrow gauge 18c is arranged between wide sheet 18b and 18d, to reduce the resonance frequency of long curved conductor 18
Rate.Therefore, these radiation of conductors low frequency signals.
Long curved conductor top 18a and 18b and the Capacitance Coupled of folded dipole 9, its underpart 18d leads with transmitting reflecting ground
The electromagnetic coupled of plate 3.Therefore, long curved conductor forms a radiant body by the water conservancy diversion loop of radiating curtain, with folded dipole 9
Couple with line of symmetry 10.
The length of the cross conduit of water conservancy diversion loop and radiating curtain is more than 0.4 wavelength, corresponding to the intermediate frequency of low-frequency range.
Short conductors 16 and long curved conductor 18 reduce the resonant frequency in water conservancy diversion loop with the coupling of radiating curtain, so radiating curtain energy
Radiation low-band signal.Compared with the radiant body for only being formed by water conservancy diversion loop, formed by water conservancy diversion loop and long curved conductor 18
Coupling radiant body, with broader low frequency bandwidth.
The strip line being made up of arrow gauge 4 and wide sheet 5 forms match circuit, and the impedance of arrow gauge 4 is more than 50 ohm.Wide sheet 5
Impedance is less than 50 ohm.Reflection from wide sheet and arrow gauge is series connected, and the reflection from radiating curtain is compensated, and changes
It has been apt to the voltage standing wave ratio (VSWR) of antenna.
One dual-band and dual-polarization for being operated in 698～960MHz and 1710～2690MHz frequency ranges is devised according to the present invention
Antenna example simultaneously can be expanded to 618-960MHz and 1710-2690MHz frequency ranges.This example sample has that a diameter of 250m's is anti-
Earth plate is penetrated, the high 58mm of the radiating curtain above reflecting ground guide plate.The voltage standing wave ratio (VSWR) of the example sample is excellent
In 1.7.Isolation (isolation) is superior to 25dB in two frequency ranges.The half power lobe width of the antenna example is low
About 120～180 degree during frequency, in high frequency about 100～160 degree.The antenna example has so wide lobe, leads in reflecting ground
Enough radio-frequency (RF) energy can be radiated in one plane of plate, therefore can be used as orienting omnidirectional antenna.
In sum, the present invention provides a kind of dual-band dual-polarized antenna, its compared with known antenna, with wider lobe,
More simple designs and smaller volume.
Although the present invention is disclosed above with preferred embodiment, the scope of present invention enforcement is not limited to.Any
The ordinary person in field, in the range of without departing from utility model, does some improvement, i.e., every to change on an equal basis according to what the present invention was done
Enter, should be the scope of the present invention and covered.
Claims (8)
1. a kind of ultra-wideband dual polarization mimo antennas, including reflecting ground guide plate and it is arranged on the reflecting ground guide plate
The radiating curtain of side, it is characterised in that two baluns, and two are provided between the radiating curtain and reflecting ground guide plate
The individual match circuit for connecting balun and two antenna outputs, the radiating curtain includes four identical water conservancy diversion loops, institute
State four water conservancy diversion loops to there is the axis of symmetry and be connected to cross shaped head and the radiation with cruciate groove in intersection
The end of array, each water conservancy diversion loop forms a folded dipole and one group from the radiating curtain center to the folding
The line of symmetry of folded dipole feed, is provided with relative with folded dipole and parallel in the plane that the folded dipole is located
Four straps, be provided between the radiating curtain and reflecting ground guide plate four short curved conductors and with it is adjacent
The end of folded dipole is relative, four length of a film curved conductors is provided between radiating curtain and reflecting ground guide plate and is right against
In the middle of the folded dipole, the match circuit has more than 50 ohm and less than 50 ohmages and the banding that is together in series
Line.
2. ultra-wideband dual polarization mimo antennas according to claim 1, it is characterised in that the balun includes
Long coaxial cable and a short coaxial cable, are connected by external conductor with a metal dish, and the outside of the long coaxial cable is led
The bottom of body is connected with the reflecting ground guide plate, and the bottom of its inner conductor is connected with the strip line of the match circuit；Together
The top of the external conductor of shaft cable is connected with the end that is connected in the water conservancy diversion loop at the radiating curtain center, is arranged on same
The top of the inner conductor of the coaxial cable on axis of symmetry is connected by the conductive bridges above radiating curtain.
3. ultra-wideband dual polarization mimo antennas according to claim 1, it is characterised in that in the radiating curtain
Top is provided with a dielectric substrate, and there is a hole centre of the dielectric substrate.
4. ultra-wideband dual polarization mimo antennas according to claim 2, it is characterised in that first on cross point
Individual conductive bridges are to be bent up, and second conductive bridges is to be turned under.
5. ultra-wideband dual polarization mimo antennas according to claim 3, it is characterised in that per a piece of short curved conductor
One end be arranged on the top surface of the dielectric substrate, the other end points to the reflecting ground guide plate.
6. ultra-wideband dual polarization mimo antennas according to claim 1, it is characterised in that the long curved conductor tool
There are wide sheet and arrow gauge, and be at least bent in two places.
7. ultra-wideband dual polarization mimo antennas according to claim 1, it is characterised in that the long curved conductor sets
Put in the top of the reflecting ground guide plate, and isolated with reflecting ground guide plate by an insulation mat.
8. ultra-wideband dual polarization mimo antennas according to claim 1, it is characterised in that the long curved conductor
Top is correspondingly arranged with the strap, and is isolated by an insulation mat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410398263.2A CN104300233B (en) | 2014-08-13 | 2014-08-13 | Ultra-wideband dual-polarized multi-input multi-output antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410398263.2A CN104300233B (en) | 2014-08-13 | 2014-08-13 | Ultra-wideband dual-polarized multi-input multi-output antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300233A CN104300233A (en) | 2015-01-21 |
| CN104300233B true CN104300233B (en) | 2017-04-26 |
Family
ID=52319871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410398263.2A Active CN104300233B (en) | 2014-08-13 | 2014-08-13 | Ultra-wideband dual-polarized multi-input multi-output antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104300233B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577323A (en) * | 2015-02-06 | 2015-04-29 | 西安电子科技大学 | Dual-frequency and dual-polarization antenna used for mobile communication base station |
| CA3063197C (en) | 2017-05-04 | 2022-02-15 | Huawei Technologies Co., Ltd. | Dual-polarized radiating element and antenna |
| WO2019052632A1 (en) | 2017-09-12 | 2019-03-21 | Huawei Technologies Co., Ltd. | Dual-polarized radiating element and antenna |
| CN114639949B (en) * | 2022-04-27 | 2024-01-05 | 上海海积信息科技股份有限公司 | Circularly polarized antenna |
| CN116864958B (en) * | 2023-05-30 | 2024-04-02 | 中煤科工集团武汉设计研究院有限公司 | Colliery is radio wave omnidirectional receiving antenna in pit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572347A (en) * | 2009-05-27 | 2009-11-04 | 广东盛路通信科技股份有限公司 | Integral type antenna element |
| CN101707292A (en) * | 2009-05-07 | 2010-05-12 | 广东通宇通讯设备有限公司 | Broadband dual polarized antenna |
| CN103280626A (en) * | 2013-04-28 | 2013-09-04 | 广东通宇通讯股份有限公司 | Dual-broadband and dual-polarization omni-directional ceiling antenna |
| CN103779658A (en) * | 2013-11-22 | 2014-05-07 | 佛山市安捷信通讯设备有限公司 | Low-profile dual-polarization low-frequency radiation unit, antenna array, antenna apparatus and antenna |
| CN204067588U (en) * | 2014-08-13 | 2014-12-31 | 广州埃信电信设备有限公司 | Ultra-wideband dual polarization mimo antennas |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7688271B2 (en) * | 2006-04-18 | 2010-03-30 | Andrew Llc | Dipole antenna |
-
2014
- 2014-08-13 CN CN201410398263.2A patent/CN104300233B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707292A (en) * | 2009-05-07 | 2010-05-12 | 广东通宇通讯设备有限公司 | Broadband dual polarized antenna |
| CN101572347A (en) * | 2009-05-27 | 2009-11-04 | 广东盛路通信科技股份有限公司 | Integral type antenna element |
| CN103280626A (en) * | 2013-04-28 | 2013-09-04 | 广东通宇通讯股份有限公司 | Dual-broadband and dual-polarization omni-directional ceiling antenna |
| CN103779658A (en) * | 2013-11-22 | 2014-05-07 | 佛山市安捷信通讯设备有限公司 | Low-profile dual-polarization low-frequency radiation unit, antenna array, antenna apparatus and antenna |
| CN204067588U (en) * | 2014-08-13 | 2014-12-31 | 广州埃信电信设备有限公司 | Ultra-wideband dual polarization mimo antennas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104300233A (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10720709B2 (en) | Self-grounded surface mountable bowtie antenna arrangement, an antenna petal and a fabrication method | |
| US8537063B2 (en) | Antenna for reception of satellite radio signals emitted circularly, in a direction of rotation of the polarization | |
| US9716312B2 (en) | Multiple-input multiple-output ultra-wideband antennas | |
| CN101542841B (en) | Dual polarization antenna | |
| US8878737B2 (en) | Single feed planar dual-polarization multi-loop element antenna | |
| US8410982B2 (en) | Unidirectional antenna comprising a dipole and a loop | |
| CN110085986A (en) | It is a kind of can the big frequency of beam scanning compare dual-band antenna | |
| JPH10508174A (en) | Printed antenna | |
| CN104300233B (en) | Ultra-wideband dual-polarized multi-input multi-output antenna | |
| CN106450714A (en) | Broadband circularly-polarized antenna applicable to arrays | |
| CN108767481A (en) | A kind of directional diagram reconstructable RECTIFYING ANTENNA of broad beam | |
| CN104885291A (en) | Antenna and filter structures | |
| EP3245690B1 (en) | Dual-band inverted-f antenna with multiple wave traps for wireless electronic devices | |
| WO2020142395A1 (en) | Dual band horizontally polarized omnidirectional antenna | |
| CN106229698A (en) | A kind of dual-polarization radiating unit, antenna and application thereof | |
| TW201131894A (en) | Methods for reducing near-field radiation and specific absorption rate (SAR) values in communications devices | |
| CN101388494A (en) | Multi-antenna integrated module | |
| CN110176668A (en) | Antenna element and electronic equipment | |
| CN103943946A (en) | Broadband omni-directional antenna with 45-degree oblique polarization | |
| CN108172986A (en) | Dual-frequency P CB plate antennas | |
| CN205122763U (en) | Be applied to two waveband dual -frenquency microstrip paster antenna of L wave band and C wave band | |
| CN105703084B (en) | A kind of room divided antenna | |
| CN204067588U (en) | Ultra-wideband dual polarization mimo antennas | |
| US12119561B2 (en) | Dual port antenna structure | |
| CN206364196U (en) | Unmanned plane antenna and unmanned plane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180809 Granted publication date: 20170426 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210809 Granted publication date: 20170426 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210809 Granted publication date: 20170426 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20240809 Granted publication date: 20170426 |