CN107359409B - A kind of duplex feeding wide band high-gain antenna applied to base station communication system - Google Patents
A kind of duplex feeding wide band high-gain antenna applied to base station communication system Download PDFInfo
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- CN107359409B CN107359409B CN201710482612.2A CN201710482612A CN107359409B CN 107359409 B CN107359409 B CN 107359409B CN 201710482612 A CN201710482612 A CN 201710482612A CN 107359409 B CN107359409 B CN 107359409B
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- radiation patch
- communication system
- wide band
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- 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
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- 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
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of duplex feeding wide band high-gain antenna applied to base station communication system, including metal base plate and pass through a pair of of short circuit metal column, the symmetrical bicyclic metal radiation patch of two pairs of short-circuit wall sides of being connected thereto；Symmetrical bicyclic metal radiation patch is H-shaped structure, and a pair of of feed Balun is hook-like configuration, is set to the two sides of symmetrical bicyclic metal radiation patch；A pair of of short-circuit wall is set to the two sides of feed Balun, constitutes magneto-electric coupled feed structure with feed Balun；A pair of of short circuit column is set to the two sides of a pair of of short-circuit wall, and is symmetrically connected among the H piece of symmetrical bicyclic metal radiation patch on the parallel-plate of gusset two sides；A pair of of sub-miniature A connector is set to the two sides of symmetrical bicyclic metal radiation patch, the underface of feed Balun.Present invention improves the impedance matching properties in working band, have expanded working band, realize the broadband character of antenna；Improve the gain of antenna.The wireless communication system for realizing wide-band, reduces the antenna complex of communication system.
Description
Technical field
The invention belongs to wireless communication fields, and in particular to a kind of broadband, low-cross polarization, high-gain Antenna Design
Method can be applied in antenna for base station design.
Background technique
With the development of wireless communication system, the performance requirement of system is also higher and higher.Antenna is important as system terminal
R-T unit, the concern of more and more Electronics Engineers is also received to the improvement of its performance.Currently, structure is simple, small-sized
Change, low cost, broadband, low-cross polarization, high-gain antenna also have become a hot topic of research.These are excellent possessed by antenna
Point, so that the characteristics of wireless communication system is provided with strong anti-interference, high transmitting power and high system sensitivity.Currently, modern nothing
Antenna used in line communication system still has the following problems: 1, narrow bandwidth, there is the day using multiple and different working frequencies
The case where line cooperates；2, cross polarization is poor, drastically influences Antenna Anti-jamming performance；3, gain is low, higher in order to obtain
Gain, need to antenna array, and organize volume and cost that battle array increases antenna.Therefore, for existing for existing antenna
Deficiency designs the high performance antenna that a suitable Modern Communication System uses, and also has become the important of antenna designers and grinds
Study carefully direction.The antenna in the present invention has the characteristics such as broadband, low-cross polarization, high-gain, so as to improve antenna
Compatibility, reduce base station array design in antenna element quantity, saved the processing cost of antenna.Therefore, the day
Line will become the preferred antenna in wireless communication system.
Summary of the invention
For deficiency present in above-mentioned existing Antenna Design, the purpose of the present invention is to provide one kind have broadband,
Low-cross polarization, high-gain aerial.It is different from traditional antenna design, the invention reside in symmetric double loop technique is reasonably utilized, have
Reduce to effect the cross polarization of antenna；And using double balun feed technologies, the matching properties in Antenna Operation with are improved,
The bandwidth of operation of antenna is expanded；By short-circuit loading technique, so that being obviously improved with interior peak gain.To utilize with
The upper technology, so that the antenna is provided with the characteristic of broadband, low-cross polarization, high-gain.
In order to achieve the above objectives, the present invention is realized by following technical proposals.
A kind of duplex feeding wide band high-gain antenna applied to base station communication system, duplex feeding wide band high-gain antenna include
Metal base plate, and pass through a pair of of short circuit metal column, the symmetrical bicyclic metal radiation patch of two pairs of short-circuit wall sides of being connected thereto；Institute
Stating symmetrical bicyclic metal radiation patch is H-shaped structure, and a pair of of feed Balun is hook-like configuration, is set to symmetrical bicyclic metal radiation
The two sides of patch；A pair of of short-circuit wall is set to the two sides of feed Balun, constitutes magneto-electric coupled feed structure with feed Balun；It is a pair of
Short-circuit column is set to the two sides of a pair of of short-circuit wall, and is symmetrically connected to gusset two among the H piece of symmetrical bicyclic metal radiation patch
On the parallel-plate of side；A pair of of sub-miniature A connector is set to the two sides of symmetrical bicyclic metal radiation patch, the underface of feed Balun.
As optimization, the sub-miniature A connector is set to the lower surface of metal base plate.
As optimization, the feed Balun is set to the flat of the two sides of symmetrical bicyclic metal radiation patch H piece centre gusset
Between andante, one end is suspended on metal base plate, and the other end is the free end extended downward vertically, and feed Balun one end
It is connect with the inner core of sub-miniature A connector.
As optimization, the symmetrical bicyclic metal radiation patch be by the symmetrical bicyclic H-shaped structural radiation patch constituted, away from
It is h with a distance from metal base plate, the range of the h is the centre frequency that 0.22 λ of λ c~0.28 c, λ c is working frequency.
It is D, antenna peak by optimization short circuit metal intercolumniation when the pair of short circuit metal intercolumniation is D as optimization
Value gain reaches 11.7dBi, and the range of the D is the centre frequency that 0.25 λ of λ c~0.35 c, λ c is working frequency.
Further, when the duplex feeding wide band high-gain Antenna Operation frequency range is 1.82GHz~2.77GHz, active echo
Loss < -15dB, opposite bandwidth of operation are 41.4%；Antenna Operation frequency range be 2.2GHz when, cross polarization lower than it is main polarization extremely
Few 38dB；Gain is greater than 9.7dBi in bandwidth.
The prior art is compared, the invention has the benefit that
1, the present invention is due to passing through the length and width of the adjusting antenna radiator using symmetrical bicyclic design method
Degree, to obtain lower cross polarization, while ensure that the greatest irradiation direction of antenna does not deviate by side and penetrates direction.
2, the present invention improves antenna using balun feed technology is introduced based on symmetrical bicyclic structure again well
Impedance matching property has effectively expanded the bandwidth of operation of antenna.
3, the present invention effectively improves working band using short-circuit column in the method for symmetrical bicyclic center line short circuit load
The peak gain of the interior antenna.
Compared with prior art, the configuration of the present invention is simple is easily worked, channel radio that is small in size and can realizing wide-band
Letter system reduces the antenna complex of communication system.
Detailed description of the invention
Fig. 1 is the top layer top view of inventive antenna unit；
Fig. 2 is inventive antenna cross sectional side view；
Fig. 3 is inventive antenna top layer top view；
Fig. 4 is the active S parameter in inventive antenna port；
Fig. 5 is E face directional diagram of the inventive antenna in 2.2GHz；
Fig. 6 is H face directional diagram of the inventive antenna in 2.2GHz；
Fig. 7 is peak gain of the inventive antenna in bandwidth of operation；
In figure: 1, symmetrical bicyclic metal radiation patch；101, one arm of the first radiation patch；102, the second radiation patch one
Arm；2, metal base plate；3, feed Balun；301, the first feed Balun；302, the second feed Balun；401, the first short-circuit wall；
402, the second short-circuit wall；501, the first short circuit metal column；502, the second short circuit metal column；503, the first mounting hole of patch；504,
The second mounting hole of patch；505, the first mounting hole of bottom plate；506, the second mounting hole of bottom plate；601, the first sub-miniature A connector；602, second
Sub-miniature A connector.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the invention will be further described, in the illustrative examples of the invention
And explanation is used to explain the present invention, but not as a limitation of the invention.
Referring to FIG. 1, FIG. 2 and FIG. 3, the duplex feeding wide band high-gain antenna applied to base station communication system of the invention, packet
Include metal base plate 2, and by a pair of of short circuit metal column 501,502 and a pair of of short-circuit wall 401,402 sides of being connected thereto it is symmetrical
Bicyclic metal radiation patch 1, symmetrical bicyclic metal radiation patch 1 are H-shaped structure, and a pair of of feed Balun 301,302 is set to pair
Claim the two sides of bicyclic metal radiation body 1, and by two sub-miniature A connectors (the first sub-miniature A connector 601, the second sub-miniature A connector 602) with
Symmetrical bicyclic metal radiation body 1 connects；A pair of of short-circuit wall 4 is set to the two sides of feed Balun 3, a pair of of short circuit metal column (first
Short circuit metal column 501, the second short circuit metal column 502) it is set to a pair of of short-circuit wall (the first short-circuit wall 401, the second short-circuit wall 402)
Two sides, and be symmetrically connected among the H piece of symmetrical bicyclic metal radiation patch 1 on the parallel-plate of gusset two sides.Two SMA connect
First 601,602 are set to the lower surface of metal base plate 2.Feed Balun 3 is set to symmetrical bicyclic metal radiation body 1H piece intermediate ribs
Between the parallel-plate of the two sides of plate, one end is suspended in 2 top of metal base plate, and the other end is the free end extended downward vertically, and
And feed Balun one end is connect with the inner core of the first sub-miniature A connector 601 or the second sub-miniature A connector 602 respectively.
Feed Balun 3 is hook-like configuration.Wherein, in a pair of of short-circuit wall 401 side of the first short-circuit wall balun free end
It is suspended on metal base plate 2；Positioned at the free end of 402 side of the second short-circuit wall extended downward vertically, with sub-miniature A connector 601,
602 inner core connection.The total length of feed Balun is L=L1+L2+L3, and L1 is that sub-miniature A connector 601,602 arrives symmetrical bicyclic metal
The distance of radiation patch, L2 are the length being suspended on metal base plate, and L3 is the free end length extended downward vertically；The model of L
Enclose be for 0.45 λ of λ c~0.55 c, λ c working frequency centre frequency.
Symmetrical bicyclic metal radiation patch 1 is by the symmetrical bicyclic H-shaped structural radiation patch constituted, apart from metal base plate 2
Distance be h, the range of the h is 0.22 λ of λ c~0.28 c.
A pair of of 5 spacing of short circuit metal column is D, is D by optimization short circuit metal intercolumniation, peak antenna gain is greater than
The range of 11.7dBi, the D are the centre frequency that 0.25 λ of λ c~0.35 c, λ c is working frequency.
Above structure forms Symmetrical Broad-Band double loop antenna.Wherein, 2 material of metal base plate of antenna is 0.5 millimeter of thickness
Metallic copper；Symmetrical bicyclic metal radiation patch 1 is set at 2 30 millimeters of top of metal base plate, is by two adjacent symmetric doubles
Split ring links together composition, to obtain good directional radiation properties.A pair of of feed Balun is set to symmetrical bicyclic gold
The two sides for belonging to radiation patch 1 guarantee that antenna has in certain working band by adjusting the transmission line width of feed Balun
Preferable impedance matching property.A pair of of short circuit metal wall 401,402 is set to the two sides of feed Balun 3, and is connected to antenna pair
Claim between bicyclic metal radiation patch 1 and metal base plate 2, forms current loop for balun feed；First, second short circuit metal column
501, it 502 is set on radiation patch center line, not only can be short-circuit by symmetrical bicyclic metal radiation patch 1 and metal base plate 2, but also
It can play a supporting role to radiation patch；The first mounting hole of patch 503, the second mounting hole of patch 504, the first mounting hole of bottom plate
505, the second mounting hole of bottom plate 506 is fixed for the installation of the first short circuit metal column 501, the second short circuit metal column 502；First
Sub-miniature A connector 601,602 port of the second sub-miniature A connector outer wall connect with metal base plate 2, inner core and the first feed Balun 301, second
The structure end of feed Balun 302 connects.
Effect of the invention can be described further in conjunction with simulation result:
1, emulation content
1.1 are poised for battle double loop antenna to broadband employed in above embodiment using business simulation software HFSS_15.0
Port active return loss carry out simulation calculation, as a result as shown in Figure 4.
1.2 utilize business simulation software HFSS_15.0 to the far field spoke of the antenna employed in above embodiment
It penetrates directional diagram and carries out simulation calculation, as a result as shown in Figure 5, in which: Fig. 5 is that the antenna employed in example hangs down in 2.2GHz
Face normalization antenna pattern directly.
1.3 utilize business simulation software HFSS_15.0 to dual polarized antenna unit employed in above embodiment
Far field radiation pattern carries out simulation calculation, as a result as shown in Figure 6, in which: Fig. 6 is that the antenna employed in example exists
The magnetic field 2.2GHz face normalizes antenna pattern.
1.4 emulate peak antenna gain described in above embodiment using business simulation software HFSS_15.0
It calculates, as a result as shown in fig. 7, being peak antenna gain with the situation of change of frequency.
2, simulation result
Referring to Fig. 4, -15dB is less than as standard using active return loss, selected Antenna Operation frequency range in embodiment
For 1.82GHz~2.77GHz, opposite bandwidth of operation is 41.4%.
It is the far field radiation pattern of antenna vertical plane at 2.2GHz selected in embodiment referring to Fig. 5,
Greatest irradiation direction as seen from the figure is parallel with Z axis always, without any deviation, cross polarization lower than it is main polarization at least
50dB shows that dual-polarization cells have lower cross polarization.
It is the far field radiation pattern of antenna horizontal plane at 2.2GHz selected in embodiment referring to Fig. 6,
Greatest irradiation direction as seen from the figure is parallel with Z axis always, without any deviation, cross polarization lower than it is main polarization at least
38dB shows that dual-polarization cells have lower cross polarization.
It is peak antenna gain in embodiment with the variation of frequency, it can be seen that the antenna gain is with frequency referring to Fig. 7
The raising of rate and enhance, and in bandwidth gain be greater than 9.7dBi.
The present invention is not limited to the above embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing creative labor
A little replacements and deformation, these replacements and deformation are within the scope of the invention.
Claims (7)
1. a kind of duplex feeding wide band high-gain antenna applied to base station communication system, it is characterised in that: duplex feeding broadband height increases
Beneficial antenna is set as dual polarized antenna, and the dual polarized antenna includes metal base plate (2), and passes through a pair of of short circuit metal column
The symmetrical bicyclic metal radiation patch (1) of (501,502), a pair of of short-circuit wall (401,402) side of being connected thereto；The symmetric double
Ring metal radiation patch (1) is H-shaped structure, and a pair of of feed Balun (3) is hook-like configuration, is set to symmetrical bicyclic metal radiation patch
Among piece (1) H piece between the parallel-plate of the two sides of gusset；A pair of of short-circuit wall (401,402) is set to the two of feed Balun (3)
Side constitutes magneto-electric coupled feed structure with feed Balun；A pair of of short circuit column (501,502) be set to a pair of of short-circuit wall (401,
402) two sides, and be symmetrically connected among the H piece of symmetrical bicyclic metal radiation patch (1) on the parallel-plate of gusset two sides；One
The two sides of symmetrical bicyclic metal radiation patch (1), the underface of feed Balun (3) are set to sub-miniature A connector (601,602).
2. a kind of duplex feeding wide band high-gain antenna applied to base station communication system according to claim 1, feature
Be: the pair of sub-miniature A connector (601,602) is set to the lower surface of metal base plate (2).
3. a kind of duplex feeding wide band high-gain antenna applied to base station communication system according to claim 1, feature
Be: feed Balun (3) one end is suspended on metal base plate (2), and the other end is the free end extended downward vertically, and is presented
The connection of the inner core of electric balun (3) one end and sub-miniature A connector.
4. a kind of duplex feeding wide band high-gain antenna applied to base station communication system according to claim 3, feature
Be: the total length of the feed Balun is L=L1+L2+L3, and L1 is that sub-miniature A connector (6) arrive symmetrical bicyclic metal radiation patch
(1) distance, L2 are the length being suspended on metal base plate (2), and L3 is the free end length extended downward vertically；The L's
Range is the centre frequency that 0.45 λ of λ c~0.55 c, λ c is working frequency.
5. a kind of duplex feeding wide band high-gain antenna applied to base station communication system according to claim 1, feature
Be: the symmetrical bicyclic metal radiation patch (1) is by the symmetrical bicyclic H-shaped structural radiation patch constituted, apart from metal bottom
The distance of plate (2) is h, and the range of the h is the centre frequency that 0.22 λ of λ c~0.28 c, λ c is working frequency.
6. a kind of duplex feeding wide band high-gain day applied to base station communication system according to claim 1-5
Line, it is characterised in that: the duplex feeding wide band high-gain Antenna Operation frequency range is 1.82GHz~2.77GHz, active return loss
< -15dB, opposite bandwidth of operation are 41.4%.
7. a kind of duplex feeding wide band high-gain day applied to base station communication system according to claim 1-5
Line, it is characterised in that: the duplex feeding wide band high-gain Antenna Operation frequency range be 2.2GHz, cross polarization lower than it is main polarization extremely
Few 38dB；Gain is greater than 9.7dBi in bandwidth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710482612.2A CN107359409B (en) | 2017-06-22 | 2017-06-22 | A kind of duplex feeding wide band high-gain antenna applied to base station communication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710482612.2A CN107359409B (en) | 2017-06-22 | 2017-06-22 | A kind of duplex feeding wide band high-gain antenna applied to base station communication system |
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| CN107359409A CN107359409A (en) | 2017-11-17 |
| CN107359409B true CN107359409B (en) | 2019-08-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034765A (en) * | 2006-03-10 | 2007-09-12 | 香港城市大学 | Complementary wideband antenna |
| CN104685716A (en) * | 2012-10-01 | 2015-06-03 | 株式会社Ntt都科摩 | Reflect array |
| CN105428809A (en) * | 2015-11-26 | 2016-03-23 | 重庆金美通信有限责任公司 | Broadband planar inverted-F antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090051598A1 (en) * | 2007-08-26 | 2009-02-26 | Micro-Ant, Inc. | Compact microstrip patch antenna |
-
2017
- 2017-06-22 CN CN201710482612.2A patent/CN107359409B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034765A (en) * | 2006-03-10 | 2007-09-12 | 香港城市大学 | Complementary wideband antenna |
| CN104685716A (en) * | 2012-10-01 | 2015-06-03 | 株式会社Ntt都科摩 | Reflect array |
| CN105428809A (en) * | 2015-11-26 | 2016-03-23 | 重庆金美通信有限责任公司 | Broadband planar inverted-F antenna |
Non-Patent Citations (1)
| Title |
|---|
| Gain-Enhanced Patch Antennas With;Xiao Zhang等;《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》;20160527;第64卷(第8期);全文第3311页第1栏-第2栏，第3317页第2栏，附图1-2 * |
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| CN107359409A (en) | 2017-11-17 |
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