CN109449609A - A kind of bimodulus arc array antenna of dipoles applied to indoor base station - Google Patents
A kind of bimodulus arc array antenna of dipoles applied to indoor base station Download PDFInfo
- Publication number
- CN109449609A CN109449609A CN201811405818.6A CN201811405818A CN109449609A CN 109449609 A CN109449609 A CN 109449609A CN 201811405818 A CN201811405818 A CN 201811405818A CN 109449609 A CN109449609 A CN 109449609A
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- medium substrate
- arc
- dipole
- base station
- bimodulus
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- 239000000758 substrate Substances 0.000 claims abstract description 43
- 238000007639 printing Methods 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 description 29
- 230000005540 biological transmission Effects 0.000 description 15
- 238000003491 array Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000012938 design process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
- H01Q21/293—Combinations of different interacting antenna units for giving a desired directional characteristic one unit or more being an array of identical aerial elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/007—Details of, or arrangements associated with, antennas specially adapted for indoor communication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/108—Combination of a dipole with a plane reflecting surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
- H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
- H01Q9/285—Planar dipole
Abstract
The invention discloses a kind of bimodulus arc array antennas of dipoles applied to indoor base station; including medium substrate; the medium substrate is circle; printing arc dipole and middle circle reflector are provided on medium substrate; the printing arc dipole is array element; it is arranged in a ring; 0 ° is arranged in along medium substrate edge; 90 °; 180 °; on 270 ° of four directions, the printing arc dipole length is equal and is drive vibrator, and the middle circle reflector is set to middle position on medium substrate.Dipole is arranged on medium substrate using the pattern features of dipole using printed dipole as array element by the present invention.Since the effective wavelength on substrate is less than air medium wavelength, the size of array antenna had both been effectively reduced in this way, and easy to process.Size of the present invention is small, high gain, low cost, and horizontal plane has beam scanning and orientation omni-directional mode handoff functionality, can be in indoor base station equipment.
Description
Technical field
The present invention relates to a kind of antenna technical fields, more particularly to one kind to be applied to indoor bimodulus arc dipole array
Antenna.
Background technique
Traditional antenna for base station size is larger, narrower bandwidth, and mode is single, is limited to its feeding classification and volume size,
Its application range suffers restraints.
With the fast development of mobile communication and the rapid growth of mobile subscriber, smart antenna has been widely regarded as improving
The key technology of communication quality and the availability of frequency spectrum.Intelligent antenna array can produce spatial orientation wave beam, and can be adaptive
Radio signal is directed to user direction by ground, and secondary lobe and zero point are directed toward other possible interference signals.Mobile communication system
Often require that smart antenna switches between omni-directional mode and directional pattern for different User Status.When base station can not determine
When user location, aerial array is worked in an omni directional pattern to obtain broader overlay area.After confirming user location, antenna
Array is switched to directional pattern and by beam position user.Therefore, antenna for base station needs 360 ° of azimuth beam scan capability.
Summary of the invention
Goal of the invention: in view of the problems of the existing technology the present invention, proposes a kind of even applied to indoor bimodulus arc
Pole submatrix array antenna.
Technical solution: to achieve the purpose of the present invention, the technical scheme adopted by the invention is that: a kind of bimodulus arc dipole
Submatrix array antenna, including medium substrate, the medium substrate are circle, and printing arc dipole is provided on medium substrate in
Between annulus reflector, the middle circle reflector is set to middle position on medium substrate, and the printing arc dipole is equal
It is arranged in a ring for array element, 0 ° is arranged in along medium substrate edge, 90 °, 180 °, on 270 ° of four directions, the printing
Arc dipole length is equal and is drive vibrator.
Further, the medium substrate is FR-4 substrate, pastes copper sheet on the medium substrate and produces aerial radiation list
Member.
Further, the feeding classification uses the external feed of radio frequency circuit board.
Further, the working frequency range of the bimodulus arc array antenna of dipoles applied to indoor base station is 2.33-
2.74GHz。
Further, when the printing arc doublet unit is Unit four, medium substrate radius is 40mm, is highly
1.6mm, printing arc doublet unit radius are 37mm, and width 2mm, middle circle reflector outer radius is 17mm, width
2mm。
Further, when the printing arc doublet unit is Unit eight, including two pieces of medium substrates, every piece of medium substrate
Upper setting is there are four the printing arc dipole and middle circle reflector of unit, and two pieces 45 ° of medium substrate relative rotation,
Then it is connected by foam, a length of 50mm of foam, width 50mm, a height of 50mm.
The utility model has the advantages that compared with prior art, technical solution of the present invention has following advantageous effects:
The present invention utilizes the pattern features of dipole, using printing arc dipole as array element, effectively prevents adopting
Generated beam position sky problem when using microstrip antenna as unit.Dipole is arranged on medium substrate.Due to base
Effective wavelength on plate is less than air medium wavelength, has both effectively reduced the size of array antenna in this way, and easy to process.This hair
Bright size is small, high gain, low cost, and horizontal plane has beam scanning and orientation omni-directional mode handoff functionality, can be used in room
In interior base station equipment.
Detailed description of the invention
Fig. 1 is four cell array structure schematic diagrames of the invention；
Fig. 2 is four cell arrays actual measurement of the invention and artificial reflections coefficient figure；
Fig. 3 is four cell arrays actual measurement of the invention and emulation omni-directional pattern: (a) actual measurement and the emulation face direction xoy figure,
(b) actual measurement and the emulation face direction yoz figure；
Fig. 4 is four cell arrays actual measurement of the invention and emulation orientation direction figure: (a) actual measurement and emulation orientation θ=0 ° figure (b)
Actual measurement and emulation orientation θ=90 ° figure, (c) actual measurement and emulation orientation θ=180 ° figure, (d) actual measurement and emulation orientation θ=270 ° figure,
(e) actual measurement and emulation orientation θ=45 ° figure, (f) actual measurement and emulation orientation θ=135 ° figure, (g) actual measurement and emulation orientation θ=225 °
Figure, (h) actual measurement and emulation orientation θ=315 ° figure；
Fig. 5 is eight cell array structure schematic diagrames of the invention；
Fig. 6 is eight cell arrays actual measurement of the invention and artificial reflections coefficient figure；
Fig. 7 is eight cell arrays actual measurement of the invention and emulation omni-directional pattern: (a) actual measurement and the emulation face direction xoy figure,
(b) actual measurement and the emulation face direction yoz figure；
Fig. 8 is eight cell arrays actual measurement of the invention and emulation orientation direction figure: (a) actual measurement and emulation orientation θ=0 ° figure (b)
Actual measurement and emulation orientation θ=90 ° figure, (c) actual measurement and emulation orientation θ=180 ° figure, (d) actual measurement and emulation orientation θ=270 ° figure,
(e) actual measurement and emulation orientation θ=45 ° figure, (f) actual measurement and emulation orientation θ=135 ° figure, (g) actual measurement and emulation orientation θ=225 °
Figure, (h) actual measurement and emulation orientation θ=315 ° figure.
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawings and examples.
Present embodiments provide a kind of double arc array antenna of dipoles array antennas of dipoles, including medium substrate 1, institute
Medium substrate 1 is stated as circle, is provided with printing arc dipole 2 and middle circle reflector 3, the printing on medium substrate 1
Arc dipole 2 is array element, arranged in a ring, is arranged in 0 °, 90 °, 180 °, 270 ° four along 1 edge of medium substrate
On direction, 2 equal length of printing arc dipole and be drive vibrator, the middle circle reflector 3 is set to Jie
Middle position on matter substrate 1, the activation profile of array element are not constant amplitude with phase, but excellent based on power transmission maximized theory
Change obtains.By placing receiving antenna in far field specific position (radiation direction), optimizing designed transmitting antenna and receiving day
Efficiency of transmission between line finds the activation profile of one group of transmitting antenna of corresponding maximum transmitted efficiency, this group excitation is exactly to set
Optimum Excitation required for transmitting antenna is counted to be distributed.For the miniaturization for realizing antenna, the present invention reduces antenna using optimization method
Three-dimensional dimension, feeding classification use the external feed of radio frequency circuit board, radio circuit feed by way of by this organize excitation assign
To corresponding array element, to realize the effect of orientation.When constant amplitude is assigned to corresponding array element with the excitation of phase, so that it may obtain complete
To radiation mode.Scattering parameter needed for whole process can be obtained by electromagnetic simulation software HFSS.Between adjusting between array element
The parameters such as the size of length and width and intermediate reflectors away from, single dipole, the orientation that can also optimize entire array antenna increase
Benefit.
Embodiment one
Embodiment one is four cell array antennas, referring to FIG. 1, Fig. 2, Fig. 3, Fig. 4.Medium substrate 1 half in the present embodiment
Diameter R1 is 40mm, and height t is 1.6mm, and printing arc doublet unit radius R2 is 37mm, width 2mm, middle circle reflection
Device outer radius R3 be 17mm, width 2mm, as shown in Figure 1.
In the design process of the above antenna, all scattering parameters are obtained by electromagnetic simulation software HFSS15.0 optimization design
It arrives.
Above-mentioned antenna radiation unit is produced by pasting copper sheet on FR-4 substrate 1, after antenna material object manufacture is completed
The reflection coefficient that antenna is measured using N9918A vector network analyzer is compared its reflection coefficient obtained with emulation,
Four cell array reflection coefficients are obtained, as shown in Figure 2.
When surveying antenna radiation pattern, with fries transmission formula:
(PR, dB-lR, dB)-(PT, dB+lT, dB)=GT, dB+GR, dB-20log10f-20log10d+147.56
Using loudspeaker as standard antenna, measuring needs, specific step is as follows:
Step 1: standard antenna being connect with signal generator by transmission line, replaces power meter with vector network analyzer
It is connected with tested antenna by transmission line；
Step 2: setting signal frequency generator f, transmission power PT；
Step 3: the loss l of transmission line between standard antenna and signal generator is measured by vector network analyzerT, dB,
The loss l of transmission line between tested antenna and vector network analyzerR, dB；
Step 4: the height of standard antenna and test antenna being adjusted to same level, guarantees the distance between antenna d
In far field.Measure the power P that vector network analyzer receivesR；
Step 5: keeping tested antenna motionless, standard antenna is rotated into θ angle, repeats step 4,5；
Step 6: and then the actual measurement of four cell array antennas including the loss calculation of radio-frequency feed circuit board, will be obtained again
Directional diagram is simultaneously compared with emulation, such as Fig. 3, shown in Fig. 4.
The present invention is based on energy transmission efficiency maximization theory.As an example, designed bimodulus arc dipole
Array antenna works 2.45GHz (the present invention is not limited to specific frequencies).When frequency shift, design method is similar.- 10dB or less
Working frequency range be 2.33-2.74GHz, bandwidth about 410MHz, survey maximum directive gain and reach 7.2dBi, omnidirectional gain reaches
1.4dBi；
Embodiment two
Embodiment two is eight cell array antennas, referring to FIG. 5, Fig. 6, Fig. 7, Fig. 8.It include two pieces of media in the present embodiment
Substrate 1, there are four the printing arc dipoles 2 and middle circle reflector 3 of unit for setting on every piece of medium substrate 1, only
Then two pieces of 45 ° of 1 relative rotation of medium substrate are connected by foam 4, a length of 50mm of the foam, width 50mm, a height of
50mm, as shown in Figure 5.
In the design process of the above antenna, all scattering parameters are obtained by electromagnetic simulation software HFSS15.0 optimization design
It arrives.
Above-mentioned antenna radiation unit is produced by pasting copper sheet on FR-4 medium substrate 1, antenna material object manufacture is completed
The reflection coefficient of antenna is measured using N9918A vector network analyzer later, its reflection coefficient obtained with emulation is carried out pair
Than obtaining eight cell array reflection coefficients, as shown in Figure 6.
When surveying antenna radiation pattern, with fries transmission formula:
(PR, dB-lR, dB)-(PT, dB+lT, dB)=GT, dB+GR, dB-201og10f-20log10d+147.56
Using loudspeaker as standard antenna, measuring needs, specific step is as follows:
Step 1: standard antenna being connect with signal generator by transmission line, replaces power meter with vector network analyzer
It is connected with tested antenna by transmission line；
Step 2: setting signal frequency generator f, transmission power PT；；
Step 3: the loss l of transmission line between standard antenna and signal generator is measured by vector network analyzerT, dB,
The loss l of transmission line between tested antenna and vector network analyzerR, dB；
Step 4: the height of standard antenna and test antenna being adjusted to same level, guarantees the distance between antenna d
In far field.Measure the power P that vector network analyzer receivesR；
Step 5: keeping tested antenna motionless, standard antenna is rotated into θ angle, repeats step 4,5；
Step 6: and then eight cell array antennas actual measurement direction including the loss calculation of radio-frequency feed circuit board, will be obtained again
Scheme simultaneously to compare with emulation, such as Fig. 7, shown in Fig. 8.
The designed bimodulus arc array antenna of dipoles works 2.45GHz (the present invention is not limited to specific frequencies).Frequently
When rate changes, design method is similar.- 10dB working frequency range below is 2.33-2.74GHz, bandwidth about 410MHz, and actual measurement is maximum
Directive gain reaches 8.2dBi, and omnidirectional gain reaches 2.8dBi.Higher cell array design is similar.
Claims (6)
1. a kind of bimodulus arc array antenna of dipoles applied to indoor base station, including medium substrate, it is characterised in that: described
Medium substrate is circle, and printing arc dipole is provided on medium substrate and middle circle reflector, the middle circle are anti-
Emitter is set to middle position on medium substrate, and the printing arc dipole is array element, arranged in a ring, along medium
Substrate edges are arranged in 0 °, and 90 °, 180 °, on 270 ° of four directions, the printing arc dipole length is equal and is driving
Oscillator.
2. the bimodulus arc array antenna of dipoles according to claim 1 applied to indoor base station, it is characterised in that: institute
Stating medium substrate is FR-4 substrate, pastes copper sheet on the medium substrate and produces antenna radiation unit.
3. the bimodulus arc array antenna of dipoles according to claim 1 applied to indoor base station, it is characterised in that: institute
Feeding classification is stated using the external feed of radio frequency circuit board.
4. the bimodulus arc array antenna of dipoles according to claim 1 applied to indoor base station, it is characterised in that: work
Making frequency range is 2.33-2.74GHz.
5. the bimodulus arc array antenna of dipoles according to claim 1 applied to indoor base station, it is characterised in that:
When the printing arc doublet unit is Unit four, it is highly 1.6mm that medium substrate radius, which is 40mm, prints arc dipole
Subelement radius is 37mm, and width 2mm, middle circle reflector outer radius is 17mm, width 2mm.
6. the bimodulus arc array antenna of dipoles according to claim 1 applied to indoor base station, it is characterised in that: institute
When to state printing arc doublet unit be Unit eight, including two pieces of medium substrates, there are four units for setting on every piece of medium substrate
Printing arc dipole and middle circle reflector, and two pieces 45 ° of medium substrate relative rotation, then pass through foam and connect
Get up, a length of 50mm of foam, width 50mm, a height of 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405818.6A CN109449609A (en) | 2018-11-23 | 2018-11-23 | A kind of bimodulus arc array antenna of dipoles applied to indoor base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405818.6A CN109449609A (en) | 2018-11-23 | 2018-11-23 | A kind of bimodulus arc array antenna of dipoles applied to indoor base station |
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| Publication Number | Publication Date |
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| CN109449609A true CN109449609A (en) | 2019-03-08 |
Family
ID=65554722
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| CN201811405818.6A Pending CN109449609A (en) | 2018-11-23 | 2018-11-23 | A kind of bimodulus arc array antenna of dipoles applied to indoor base station |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289480A (en) * | 2019-07-12 | 2019-09-27 | 南京信息工程大学 | A kind of beam scanning array antenna of dipoles applied to smartwatch |
| CN110518349A (en) * | 2019-09-09 | 2019-11-29 | 南京信息工程大学 | A kind of more radiation mode resonant antennas |
| CN112751208A (en) * | 2020-12-10 | 2021-05-04 | 连云港市气象局 | Intelligent multidirectional end-fire array antenna applied to meteorological information transmission |
| CN114097142A (en) * | 2019-05-31 | 2022-02-25 | 美波公司 | Meta-structure based reflectarray for enhanced wireless applications |
| KR20220062106A (en) * | 2019-09-18 | 2022-05-13 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Beam Diversity by Smart Antenna with Passive Elements |
| EP4184717A1 (en) * | 2021-11-18 | 2023-05-24 | Huawei Technologies Co., Ltd. | Antenna and electronic device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114097142A (en) * | 2019-05-31 | 2022-02-25 | 美波公司 | Meta-structure based reflectarray for enhanced wireless applications |
| CN110289480A (en) * | 2019-07-12 | 2019-09-27 | 南京信息工程大学 | A kind of beam scanning array antenna of dipoles applied to smartwatch |
| CN110518349A (en) * | 2019-09-09 | 2019-11-29 | 南京信息工程大学 | A kind of more radiation mode resonant antennas |
| CN110518349B (en) * | 2019-09-09 | 2024-03-26 | 南京信息工程大学 | Multi-radiation-mode resonant antenna |
| KR20220062106A (en) * | 2019-09-18 | 2022-05-13 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Beam Diversity by Smart Antenna with Passive Elements |
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| CN112751208A (en) * | 2020-12-10 | 2021-05-04 | 连云港市气象局 | Intelligent multidirectional end-fire array antenna applied to meteorological information transmission |
| EP4184717A1 (en) * | 2021-11-18 | 2023-05-24 | Huawei Technologies Co., Ltd. | Antenna and electronic device |
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