CN205543223U - Low small -size double polarization base station antenna of section - Google Patents
Low small -size double polarization base station antenna of section Download PDFInfo
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- CN205543223U CN205543223U CN201620256198.4U CN201620256198U CN205543223U CN 205543223 U CN205543223 U CN 205543223U CN 201620256198 U CN201620256198 U CN 201620256198U CN 205543223 U CN205543223 U CN 205543223U
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- strong point
- support arm
- balun
- antenna
- base station
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Abstract
The utility model discloses a low small -size double polarization base station antenna of section, including an antenna house, a plurality of oscillator subassembly, a power distribution board, two inboard metal baffles and a reflecting plate, wherein: the antenna house cover is located the reflecting plate top, oscillator subassembly, power distribution board and inboard metal baffle are located the antenna house is inboard, the reflecting plate both sides are equipped with perpendicular turn -ups, the power distribution board is located the front or the back of reflecting plate, and with reflecting plate fixed connection, every the oscillator subassembly includes radiation fin and strutting arrangement, the radiation fin passes through strutting arrangement is fixed in on the power distribution board, two inboard metal baffle about oscillator subassembly symmetry sets up, and is fixed in on the reflecting plate. The utility model discloses beneficial effect such as ultra wide band, high -gain, high efficiency, high cross polarization ratio, high front -to -back ratio and high isolation have.
Description
Technical field
This utility model relates generally to antenna technical field, particularly relates to a kind of low section small capacity double polarization base
Station antenna.
Background technology
Antenna for base station is in mobile communication system, and user terminal and the aerial electrically bridge of base station, be whole
The parts of most critical in antenna-feedback system, the quality of antenna for base station directly affects communication quality.
According to application scenario, antenna for base station substantially can be divided into two classes:
One class is the large-scale macro base station antenna being erected on high buildings and large mansions, steel tower, is characterized in unit number phase
To more, gain is of a relatively high, the accurate figuration of wave beam and to follow the tracks of user, power capacity relatively big, for big
Scope covers；
Another kind of is small-sized micro-antenna for base station, is characterized in that antenna element number is less, gain is relatively low, wave beam
Rough figuration, power capacity are relatively small, and the fixed point beyond macro base station antenna coverage areas is mended blind,
The hot spot region of densely populated place covers, such as market, airport, subway station and gymnasium etc..
Currently, macro base station antenna due to wide coverage, siting of station difficulty, floor space big, simultaneously
Frequency spectrum resource is limited, therefore, it is difficult to dispose in densely populated place；Additionally, even with LTE, OFDM
With the new technique such as MIMO, still make it difficult for the dense population in little scope high-peed connection and switching, net simultaneously
Network speed is the lowest.Additionally, macro base station overburden depth is inadequate, especially at cell edge, building angle
Fall, venue edge, there is covering blind spot, signal intensity substantially weakens, and signal to noise ratio declines greatly, makes
Consumer's Experience is become to decline, even cannot access to mobile network.In order to solve these problems, it is used for solving heat
The small base station antenna that some blind spot covers occurs in that.Send out along with communication technology and the continuous of mobile Internet
Exhibition, the prospect of small base station antenna is the most wide.
That existing antenna for base station is primarily present disadvantageously, way of realization and packaging technology are complicated, use more
Die cast metal Harmonic Oscillators, needs complicated feeding network, and ratio is if desired for using 4 coaxial cables to realize
Feed.The broad-band antenna realized even with PCB typography, at low section (antenna distance reflection plate hight
Degree is less than 0.125 wavelength) version under, it is difficult to realize broadband (690-960MHz or
Under the conditions of 1710-2700MHz), electricity function index meets the requirement of antenna for base station industry standard.
Utility model content
A kind of ultra broadband that the purpose of this utility model is contemplated to solve the deficiency of prior art and provides,
High-gain, high efficiency, high cross polarization ratio, high before and after than and high-isolation low section small capacity double polarize
Antenna for base station, and simple and beautiful structure, it is easy to Project Realization, be suitable for producing in enormous quantities, reduce and produce
Cost, electricity function index meets common macro base station antenna industry standard.
In order to reach above-mentioned utility model purpose, solve the technical scheme that its technical problem used as follows:
A kind of low section small capacity double polarization antenna for base station, including an antenna house, some vibrator component, a merit
Rate distribution plate, two pieces of inner metal baffle plates and a reflecting plate, wherein:
Described antenna house covers at above described reflecting plate, described vibrator component, power distribution plate and inner side
Metal baffle is positioned at inside described antenna house；
Described reflecting plate both sides are provided with vertical flange；
Described power distribution plate is positioned at front or the back side of described reflecting plate, and fixes even with described reflecting plate
Connect；
Each described vibrator component includes radiation fin and support means, and described radiation fin supports dress by described
Put and be fixed on described power distribution plate；
Two pieces of described inner metal baffle plates are symmetrical arranged about described vibrator component, and are fixed on described reflection
On plate.
Further, described radiation fin includes that dielectric material plate, the front of described dielectric material plate are provided with
Half-wave dipole antenna arm and the first metal tape, wherein:
The quantity of described half-wave dipole antenna arm is four, and each described half-wave dipole antenna arm includes
One half-wave dipole antenna arm body and two protruding minor matters；
Four described half-wave dipole antenna arm bodies respectively about described dielectric material plate centrosymmetry and in
The first narrow slit is left between ± 45 ° of distributions, and two adjacent described half-wave dipole antenna arms, each
Offering a cell body in the middle of described half-wave dipole antenna arm body, described cell body is along described dielectric material plate
± 45 ° of axis extend to the described half-wave dipole antenna arm body away from described dielectric material plate center
End；
It is provided with narrow channel, described narrow channel and the through company of described cell body between two described protruding minor matters
Connect and along described dielectric material plate ± 45 ° of axis arrange, two described protruding minor matters are even with described half-wave
Pole sub antenna arm body end is connected as a single entity, and is mirrored into symmetrical about described narrow channel；
The quantity of described first metal tape is four, and each described first metal tape is positioned at adjacent two described half-waves
The outside of dipole antenna arm, and leaving second at adjacent two described half-wave dipole antenna arms
Narrow slit, two described first metal tapes of Arbitrary Relative, with described first narrow slit as axle, are distributed axisymmetricly.
Preferably, described half-wave dipole antenna arm be shaped as square or circular arc is petal.
Preferably, described first metal tape is metal band or T-shaped metal tape.
Preferably, described protruding minor matters are right-angled trapezium or rectangle.
Further, the back side of described dielectric material plate is distributed four the second metal tapes, four described
Two metal tapes are positioned at the edge of described dielectric material plate, and four described second metal tapes enclose, and adjacent
Two described second metal tape angles are 90 °；
The first overlay region is there is in described second metal tape with the half-wave dipole antenna arm in described radiation fin front
Territory, described first overlapping region has eight；
The second overlapping region, institute is there is in described second metal tape with first metal tape in described radiation fin front
State the second overlapping region and have four.
Preferably, described second metal tape is metal band or becket.
Further, described support means includes the first balun support arm and the second balun support arm, described
First balun support arm and the second orthogonal assembling of balun support arm.
Further, the front of described first balun support arm includes the first microstrip line balun, the first radiation
Sheet distributing point, the first welding strong point, the second welding strong point and the 3rd welding strong point, wherein:
The centre of described first balun support arm has elongated slot, is used for and the second orthogonal assembling of balun support arm；
Described first microstrip line balun is direct-connected with described first radiating patch point；
The described first welding strong point, the second welding strong point and the 3rd welding strong point are by metal copper layer
Make；
The front of described first balun support arm welds the strong point with described power distribution plate by described first
It is welded to connect with the second welding strong point；
The front of described first balun support arm is welded the strong point with described radiation fin by the described 3rd and is welded
Connect.
Further, the back side of described first balun support arm includes the first balun ground wire, the second radiation fin
Distributing point, the 4th welding strong point and the 5th welding strong point, wherein:
Described first balun ground wire is direct-connected with described second radiating patch point；
The described 4th welding strong point is not connected with described first balun ground wire；
The described 4th welding strong point and the 5th welding strong point are made by metal copper layer；
The back side of described first balun support arm welds the strong point with described power distribution plate by the described 5th
It is welded to connect；
The back side of described first balun support arm is welded the strong point with described radiation fin by the described 4th and is welded
Connect.
Further, the front of described second balun support arm includes the second microstrip line balun, the 3rd radiation
Sheet distributing point, the 6th welding strong point and the 7th welding strong point, wherein:
The centre of described second balun support arm has short groove, is used for and the first orthogonal assembling of balun support arm；
Described second microstrip line balun is direct-connected with described 3rd radiating patch point；
The described 6th welding strong point and the 7th welding strong point are made by metal copper layer；
The front of described second balun support arm welds the strong point with described power distribution plate by the described 7th
It is welded to connect；
The front of described second balun support arm is welded the strong point with described radiation fin by the described 6th and is welded
Connect.
Further, the back side of described second balun support arm includes the second balun ground wire, the 4th radiation fin
Distributing point, coupling minor matters, the 8th welding strong point and the 9th welding strong point, wherein:
Described 4th radiating patch point, coupling minor matters and the 8th welding the strong point respectively with described second bar
Human relations ground wire is direct-connected；
The described 8th welding strong point and the 9th welding strong point are made by metal copper layer；
The back side of described second balun support arm welds the strong point with described power distribution plate by the described 8th
It is welded to connect；
The back side of described second balun support arm is welded the strong point with described radiation fin by the described 9th and is welded
Connect.
Preferably, the height of described first balun support arm and the second balun support arm is Antenna Operation center
/ 8th wavelength of frequency.
Relative to prior art, the beneficial effects of the utility model are:
1) use the PCB material that ordinary base station antenna is conventional to complete overall construction design, radiating surface size with
The size of ordinary base station antenna is suitable, and what only balun support arm was simple be reduced to mid frequency eight/
One wavelength is even lower, does not add any unnecessary accessory, such as auxiliary tuning sheet metal, metal derby
Etc..
2) this utility model changes the theoretical cognitive of tradition quarter-wave aerial oscillator.Traditional antenna
Theory is thought, beam antenna, in order to realize well radiating, needs to meet radiating surface distance bottom reflecting plate four
The pitch requirements of/mono-wavelength, to realize the echo in-phase stacking at radiating surface, this is affected by commonly
The theoretical restriction of 180 degree of reflected phase of metallic conductor.If traditional antenna does not do any innovative design,
Simple is reduced to 1/8th height, and impedance bandwidth and directional diagram bandwidth all can be caused in various degree to dislike
Changing, cross polarization ratio is the poorest.And the Meta Materials technology taked in prior art, high-k
Thick dielectric substrate substrate etc., is for breaking through 180 degree of reflected phase, it is achieved zero reflection phase of approximation
Position, thus reduce the height of antenna, it is achieved low section, but actual effect is unsatisfactory.
3) this utility model uses a kind of brand-new design, from engineering practicability angle, does not increase and appoints
In the case of what cost, it is achieved the low Section Design truly of traditional base station antenna, meet base station
Antenna industry standard, for small base station antenna, naturally it is also possible to the miniaturization for macro base station antenna sets
Meter.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, embodiment will be described below
The accompanying drawing used required in is briefly described.It is clear that the accompanying drawing in describing below is only this
Some embodiments of utility model, for those skilled in the art, are not paying creative work
Under premise, it is also possible to obtain other accompanying drawing according to these accompanying drawings.In accompanying drawing:
Fig. 1 is the overall structure schematic diagram of this utility model low section small capacity double polarization antenna for base station；
Fig. 2 is the structural representation of vibrator component in this utility model low section small capacity double polarization antenna for base station；
Fig. 3 is the overall structure side view of this utility model low section small capacity double polarization antenna for base station；
Fig. 4 is the distressed structure signal of reflecting plate in this utility model low section small capacity double polarization antenna for base station
Figure；
Fig. 5 is the structural representation of power distribution plate in this utility model low section small capacity double polarization antenna for base station
Figure；
Fig. 6 is the Facad structure signal of radiation fin in this utility model low section small capacity double polarization antenna for base station
Figure；
Fig. 7 is that in this utility model low section small capacity double polarization antenna for base station, on radiation fin, circular arc is petal partly
The structural representation of wave dipole antenna arm；
Fig. 8 is T-shaped metal tape on radiation fin in this utility model low section small capacity double polarization antenna for base station
Structural representation；
Fig. 9 is the radiation fin back side the second metal tape in this utility model low section small capacity double polarization antenna for base station
Position view；
Figure 10 is the front projection signal of radiation fin in this utility model low section small capacity double polarization antenna for base station
Figure；
Figure 11 is the first balun support arm front knot in this utility model low section small capacity double polarization antenna for base station
Structure schematic diagram；
Figure 12 is the first balun support arm back side knot in this utility model low section small capacity double polarization antenna for base station
Structure schematic diagram；
Figure 13 is the second balun support arm front knot in this utility model low section small capacity double polarization antenna for base station
Structure schematic diagram；
Figure 14 is the second balun support arm back side knot in this utility model low section small capacity double polarization antenna for base station
Structure schematic diagram；
Figure 15 is that this utility model low section small capacity double polarization antenna for base station is less than at two-way polarization port
1.45, frequency standing-wave ratio oscillogram in the range of 1.71GHz to 2.17GHz；
Figure 16 is that this utility model low section small capacity double polarization antenna for base station is more than at the isolation of two road ports
The isolation oscillogram of 28dB；
Figure 17 is this utility model low section small capacity double polarization antenna for base station work at 1.71GHz-2.17GHz
Make the horizontal plane beam angle oscillogram in frequency band range；
Figure 18 is this utility model low section small capacity double polarization antenna for base station work at 1.71GHz-2.17GHz
Oscillogram is compared than with cross polarization before and after making the horizontal plane in frequency band range；
Figure 19 is this utility model low section small capacity double polarization antenna for base station work at 1.71GHz-2.17GHz
Make two cell array bs antenna gain curves in frequency band range.
[primary symbols explanation]
1-vibrator component；11-radiation fin；111-half-wave dipole antenna arm；112-the first metal tape；113-
Protruding minor matters；114-the first narrow slit；115-cell body；116-the second narrow slit；117-narrow channel；118-
Second metal tape；12-the first balun support arm；121-the first microstrip line balun；122-the first radiation fin is presented
Electricity point；123-first welds the strong point；124-second welds the strong point；125-the 3rd welds the strong point；
126-the first balun ground wire；127-the second radiating patch point；128-the 4th welds the strong point；129-
The five welding strong points；13-the second balun support arm；131-the second microstrip line balun；132-the 3rd radiation fin
Distributing point；133-the 6th welds the strong point；134-the 7th welds the strong point；135-the second balun ground wire；
136-the 4th radiating patch point；137-mates minor matters；138-the 8th welds the strong point；139-the 9th welds
Connect the strong point；2-power distribution plate；3-inner metal baffle plate；4-reflecting plate；The vertical flange of 41-；5-
One overlapping region；6-the second overlapping region；7-elongated slot；The short groove of 8-.
Detailed description of the invention
Below with reference to accompanying drawing of the present utility model, the technical scheme in this utility model embodiment is carried out
Clear, complete description and discussion, it is clear that as described herein is only a part of the present utility model
Example, is not whole examples, based on the embodiment in this utility model, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into this practicality
Novel protection domain.
As it is shown in figure 1, the utility model discloses a kind of low section small capacity double polarization antenna for base station, including
One antenna house (not shown and sign), some vibrator component 1, power distribution plate 2, two pieces inner side gold
Belong to baffle plate 3 and a reflecting plate 4, wherein:
Described antenna house covers at above described reflecting plate 4, described vibrator component 1, power distribution plate 2 and
Inner metal baffle plate 3 is positioned at inside described antenna house；
Described reflecting plate 4 both sides are provided with vertical flange, for adjusting the horizontal plane beam angle of antenna；?
In other embodiments, can be with the size of reflecting plate described in appropriate design 4, it is convenient to omit inner metal baffle plate 3.
S type reflecting plate the most as shown in Figure 4 or oblique 45 degree of reflecting plates.
Described power distribution plate 2 is positioned at front or the back side of described reflecting plate 4, and with described reflecting plate 4
Fixing connection；
Each described vibrator component 1 includes radiation fin 11 and support means (sign), described radiation fin
11 are fixed on described power distribution plate 2 by described support means；In the present embodiment, described support means
Including the first balun support arm 12 and the second balun support arm 13, described radiation fin 11 is by orthogonal assembling
The first balun support arm 12 and the second balun support arm 13 be fixed on described power distribution plate 2；
Two pieces of described inner metal baffle plates 3 are symmetrical arranged about described vibrator component 1, and are fixed on described
On reflecting plate 4.As it is shown on figure 3, in the present embodiment, described inner metal baffle plate 3 is two blocks of L-type gold
Belonging to sheet metal component, two pieces of described L-type sheet metal parts are symmetrical arranged along described vibrator component 1 centre mirror picture,
And be fixed on described reflecting plate 4, for adjusting the cross polarization ratio of antenna.
In the present embodiment, described power distribution plate 2 is made up of printed circuit board (PCB), as shown in Figure 5.By institute
State vibrator component 1 to assemble with it, it is achieved the antenna for base station of Unit two.It will be apparent that use more
Power distribution plate 2 and vibrator component 1, can realize the sky, base station of more units, different gains and beam angle
Line.Additionally, in overall package mode, when described power distribution plate 2 is positioned at the front of described reflecting plate 4
Time, described vibrator component 1 assembles with described power distribution plate 2 after being connected, then leads to described reflecting plate 4
Cross screw or the fixing connection of rivet；Or when described power distribution plate 2 is positioned at the back side of described reflecting plate 4,
Described power distribution plate 2 is fixedly connected on described reflecting plate 4 back side, described oscillator by screw or rivet
Assembly 1 is attached through the groove position on described reflecting plate 4 with described power distribution plate 2.
With reference to Fig. 6, described radiation fin 11 includes dielectric material plate (sign), described dielectric material plate
Front be provided with half-wave dipole antenna arm 111 and the first metal tape 112, wherein:
The quantity of described half-wave dipole antenna arm 111 is four, each described half-wave dipole antenna arm
111 include half-wave dipole antenna arm body (sign) and two protruding minor matters 113；
Four described half-wave dipole antenna arm bodies respectively about described dielectric material plate centrosymmetry and in
± 45 ° of distributions (45 ° are a group ,-45 ° is a group), and two adjacent described half-wave dipoles
Antenna arm 111 is close to each other, and the first narrow slit 114 is left in centre, and each described half-wave dipole antenna arm is originally
Offer a cell body 115 in the middle of body, described cell body 115 along described dielectric material plate ± 45 ° of axis extend
To the described half-wave dipole antenna arm body end away from described dielectric material plate center；Make each institute
State half-wave dipole antenna arm 111 to arrange in tong-like.In the present embodiment, each described half-wave dipole sky
Line arm 111 is the PCB type metal layers of copper of middle fluting, and is connecting the first balun support arm 12 He
The feed end of the second balun support arm 13 becomes electrical connection, in the terminal of described half-wave dipole antenna arm 111
Place disconnects.General performance is tong-like form.
Being provided with narrow channel 117 between two described protruding minor matters 113, described narrow channel 117 is with described
The through connection of cell body 115 and along described dielectric material plate ± 45 ° of axis arrange, two described protruding branches
Joint 113 is connected as a single entity with described half-wave dipole antenna arm body end, and about described narrow channel 117
It is mirrored into symmetrical；Preferably, described protruding minor matters 113 are right-angled trapezium or rectangle.
The quantity of described first metal tape 112 is four, and each described first metal tape 112 is positioned at adjacent
The outside of two described half-wave dipole antenna arms 111, and near adjacent two described half-wave dipoles
Leaving the second narrow slit 116 at antenna arm 111, two described first metal tapes 112 of Arbitrary Relative are with described
First narrow slit 114 (center slot of the most adjacent half-wave dipole antenna arm) is axle, is distributed axisymmetricly.
With reference to Fig. 7, described half-wave dipole antenna arm 111 be shaped as square, circular arc petal or
Other polygon.In the present embodiment into, square can make circular arc is petal or polygon, suitably
Adjustment dimensional parameters, it is also possible to reach foursquare effect.
With reference to Fig. 8, described first metal tape 112 is metal band or T-shaped metal tape.In the present embodiment,
T-shaped metal tape, suitable adjustment dimensional parameters, it is also possible to reach the effect of metal band can be made into.
With reference to Fig. 9 and 10, the back side of described dielectric material plate is distributed four the second metal tapes 118, and four
Individual described second metal tape 118 is positioned at the edge of described dielectric material plate, four described second metal tapes 118
Enclose, and two adjacent described second metal tape 118 angles are 90 °；
From the point of view of front projection, described second metal tape 118 and the half-wave dipole in described radiation fin 11 front
There is the first overlapping region 5 in sub antenna arm 111, it is therefore apparent that each described second metal tape 118 is with half
Wave dipole antenna arm 111 has 2 the first overlapping regions 5, described first overlapping region 5 to have eight；
In addition, it is also seen that, described second metal tape 118 and first gold medal in described radiation fin 11 front
Belonging to band 112 existence the second overlapping region 6, described second overlapping region 6 has four.
Preferably, described second metal tape 118 is metal band or becket.In the present embodiment, metal
Ring can be by suitable adjustment dimensional parameters, it is also possible to reach the effect of metal tape.
With reference to Figure 11, the front of described first balun support arm 12 include the first microstrip line balun 121, the
Radiating patch point 122, first welds the strong point 123, second and welds the strong point 124 and the 3rd welding
The strong point 125, wherein:
The centre of described first balun support arm 12 has elongated slot 7, is used for and the second balun support arm 13 shape
Be orthogonal assembling；
Described first microstrip line balun 121 is direct-connected with described first radiating patch point 122；
The described 3rd welding strong point 125 is not connected with described first microstrip line balun 121；
The described first welding strong point 123, second weld the strong point 124 and the 3rd welding strong point 125 by
Metal copper layer is made, and supports and strengthen described radiation fin 11 and described power distribution plate 2 for welding
Mechanical fasteners, does not do electrical applications.Concrete, the front of described first balun support arm 12 and described merit
Rate distribution plate 2 is welded to connect by the described first welding strong point 123 and the second welding strong point 124,
The front of described first balun support arm 12 welds the strong point 125 with described radiation fin 11 by the described 3rd
It is welded to connect.
With reference to Figure 12, the back side of described first balun support arm 12 includes the first balun ground wire 126, second
Radiating patch point the 127, the 4th welding strong point 128 and the 5th welding strong point 129, wherein:
Described first balun ground wire 126 is direct-connected with described second radiating patch point 127；
The described 4th welding strong point 128 is not connected with described first balun ground wire 126；
The described 4th welding strong point 128 and the 5th welding strong point 129 are made up of metal copper layer, are used for
Welding supports and strengthens the mechanical fasteners of described radiation fin 11 and described power distribution plate 2, does not do electrically
Purposes.Concrete, the back side of described first balun support arm 12 and described power distribution plate 2 are by described
The 5th welding strong point 129 is welded to connect, the back side of described first balun support arm 12 and described radiation fin
11 are welded to connect by the described 4th welding strong point 128.
With reference to Figure 13, also include the second balun support arm 13, the front of described second balun support arm 13
Including the second microstrip line balun 131, the 3rd radiating patch point the 132, the 6th welding strong point 133 and the
The seven welding strong points 134, wherein:
The centre of described second balun support arm 13 has short groove 8, is used for and the first balun support arm 12 shape
Be orthogonal assembling；
Described second microstrip line balun 131 is direct-connected with described 3rd radiating patch point 132；
The described 6th welding strong point 133 is not connected with described second microstrip line balun 131；
The described 6th welding strong point 133 and the 7th welding strong point 134 are made up of metal copper layer, are used for
Welding supports and strengthens the mechanical fasteners of described radiation fin 11 and described power distribution plate 2, does not do electrically
Purposes.Concrete, the front of described second balun support arm 13 and described power distribution plate 2 are by described
The 7th welding strong point 134 is welded to connect, the front of described second balun support arm 13 and described radiation fin
11 are welded to connect by the described 6th welding strong point 133.
With reference to Figure 14, the back side of described second balun support arm 13 includes the second balun ground wire the 135, the 4th
Radiating patch point 136, coupling minor matters the 137, the 8th welding strong point 138 and the 9th welding strong point 139,
Wherein:
Described 4th radiating patch point 136, coupling minor matters 137 and the 8th welding strong point 138 respectively with
Described second balun ground wire 135 is direct-connected；
The described 9th welding strong point 139 is not connected with described second balun ground wire 135；
The described 8th welding strong point 138 and the 9th welding strong point 139 are made up of metal copper layer, are used for
Welding supports and strengthens the mechanical fasteners of described radiation fin 11 and described power distribution plate 2, does not do electrically
Purposes.Concrete, the back side of described second balun support arm 13 and described power distribution plate 2 are by described
The 8th welding strong point 138 is welded to connect, the back side of described second balun support arm 13 and described radiation fin
11 are welded to connect by the described 9th welding strong point 139.
Preferably, the height of described first balun support arm 12 and the second balun support arm 13 is sky lineman
Make 1/8th wavelength of mid frequency.It will be seen that the low section antenna for base station that the utility model proposes,
Structure assembling parts and way of realization do not have difference with conventional macro base station antenna, do not increase any extra
Parts and process complexity.Compared with prior art, four points are breached by the radiating pattern form of innovation
One of wavelength theoretical level limit, overall section is reduced to mid frequency 1/8th wavelength, it is not necessary to extra
Any add-on parts, assembly technology is simple, light structure, is suitable for producing in enormous quantities, and electric property
Being better than the effect that prior art reaches, therefore this utility model is to be suitable for small base station sky the most
The design that line is commercial.
By the elaboration of above-described embodiment, it is known that the key point that this utility model is intended to lay special stress on protecting is:
One. it is printed in 4 second metal tapes at the radiation fin back side, from the point of view of surface projects, is positioned at phase
The lower section of adjacent two half-wave dipole antenna arms the most like-polarized, near the outside of medium substrate, and often
Identical part projection overlapping region is there is in the protruding minor matters of individual half-wave dipole antenna arm.This overlay region
Territory may be guided the electric current being positioned on half-wave dipole antenna arm and senses the metal tape of lower section, thus realizes weak
Coupling, forms another current path, it is achieved the resonance of working band lower portion, completes radiation, and
It is effectively increased ratio and cross polarization ratio before and after oscillator.
Two. it is printed in two pairs of half-wave open mouth tongs shape dual polarized antennas in radiation fin front, has 4 in open end
To the protruding minor matters loaded, these projection minor matters further enhance the half-wave dipole antenna in radiation fin front
The coupling of second metal tape at arm and the back side, is conducive to guiding current direction half-wave dipole antenna arm opening
Place, the appropriate size adjusting these projection minor matters, it is possible to achieve the impedance matching in whole working band,
Realize ultra broadband work.
Three. it is printed in 4 metal bands in radiation fin front, shorter compared with the second metal tape of the back side,
Form close coupling with the electric current on half-wave dipole antenna arm, constitute high-frequency resonant, it is achieved working band
The impedance matching of high band part, improves the isolation of working frequency range low-frequency range part simultaneously.
Four, be printed in two groups of orthogonal half-wave dipole antenna arms in radiation fin front, close to each other leave super
Narrow slot, it is achieved the close coupling of two-way cross polarization, the half-wave dipole antenna arm surface that two-way is polarized
Current convergence in both sides, gap, it is achieved the low-cross polarization characteristic on far field aloft, improve whole
Isolation in individual working frequency range.This biggest isolation in oscillator gap orthogonal with conventional basestation antennas is more
Good is theoretical contrary, and this is just the key that can realize low section.
Five. the reduction of antenna height, balun length can be caused to reduce, be unsatisfactory for quarter-wave conversion,
It is difficult to mate, by corrected altitude compared with the structure of the grounded part of the second balun support arm of hypopolarization oscillator
Form, it is achieved Broadband Matching.
In sum, the integrated use of above 5 key points, add the radiating doublet that fine optimization designs
Size, it is achieved that low section, by 0.25 wavelength antennas height reduction under traditional structure to 0.125 wavelength,
And entirety reduces antenna house and reflector height size.
Additionally, accompanying drawing 15-19 is the low section small capacity double polarization antenna for base station after using above-mentioned technical characteristic
Relevant experimental data, wherein:
Figure 15 is that this utility model low section small capacity double polarization antenna for base station is less than at two-way polarization port
1.45, frequency standing-wave ratio oscillogram in the range of 1.71GHz to 2.17GHz, as seen from the figure, two-way
Polarization port is less than 1.45, and in the frequency range of 1.71GHz to 2.17GHz, coupling is good.
Figure 16 is that this utility model low section small capacity double polarization antenna for base station is more than at the isolation of two road ports
The isolation oscillogram of 28dB, as seen from the figure, the isolation of two road ports is more than 28dB.
Figure 17 is this utility model low section small capacity double polarization antenna for base station work at 1.71GHz-2.17GHz
Make the horizontal plane beam angle oscillogram in frequency band range, as seen from the figure, 1.71GHz-2.17GHz's
In the range of working band, horizontal plane wave beam convergence is fine, and beam angle is between 64 °-66 °.
Figure 18 is this utility model low section small capacity double polarization antenna for base station work at 1.71GHz-2.17GHz
Compare before and after making the horizontal plane in frequency band range and cross polarization is than oscillogram, as seen from the figure, before and after general power
Ratio is more than 25dB, and main polarization ratio front and back is more than 30dB；Cross polarization ratio (axially) is more than 31dB, intersects
Polarization ratio (sector) is more than 15dB.
Figure 19 is this utility model low section small capacity double polarization antenna for base station work at 1.71GHz-2.17GHz
Make two cell array bs antenna gain curves in frequency band range, as seen from the figure, when gain is more than 11dB
After, along with the increase of frequency, gain the most constantly increases.
The above, only this utility model preferably detailed description of the invention, but protection of the present utility model
Scope is not limited thereto, the skill that any those familiar with the art discloses at this utility model
In the range of art, the change that can readily occur in or replacement, all should contain protection domain of the present utility model it
In.Therefore, protection domain of the present utility model should be as the criterion with scope of the claims.
Claims (13)
1. one kind low section small capacity double polarization antenna for base station, it is characterised in that include an antenna house, some
Vibrator component, a power distribution plate, two pieces of inner metal baffle plates and a reflecting plate, wherein:
Described antenna house covers at above described reflecting plate, described vibrator component, power distribution plate and inner side
Metal baffle is positioned at inside described antenna house；
Described reflecting plate both sides are provided with vertical flange；
Described power distribution plate is positioned at front or the back side of described reflecting plate, and fixes even with described reflecting plate
Connect；
Each described vibrator component includes radiation fin and support means, and described radiation fin supports dress by described
Put and be fixed on described power distribution plate；
Two pieces of described inner metal baffle plates are symmetrical arranged about described vibrator component, and are fixed on described reflection
On plate.
Low section small capacity double the most according to claim 1 polarization antenna for base station, it is characterised in that institute
State radiation fin and include that dielectric material plate, the front of described dielectric material plate are provided with half-wave dipole antenna arm
With the first metal tape, wherein:
The quantity of described half-wave dipole antenna arm is four, and each described half-wave dipole antenna arm includes
One half-wave dipole antenna arm body and two protruding minor matters；
Four described half-wave dipole antenna arm bodies respectively about described dielectric material plate centrosymmetry and in
The first narrow slit is left between ± 45 ° of distributions, and two adjacent described half-wave dipole antenna arms, each
Offering a cell body in the middle of described half-wave dipole antenna arm body, described cell body is along described dielectric material plate
± 45 ° of axis extend to the described half-wave dipole antenna arm body away from described dielectric material plate center
End；
It is provided with narrow channel, described narrow channel and the through company of described cell body between two described protruding minor matters
Connect and along described dielectric material plate ± 45 ° of axis arrange, two described protruding minor matters are even with described half-wave
Pole sub antenna arm body end is connected as a single entity, and is mirrored into symmetrical about described narrow channel；
The quantity of described first metal tape is four, and each described first metal tape is positioned at described in adjacent two
The outside of half-wave dipole antenna arm, and leaving at adjacent two described half-wave dipole antenna arms
Second narrow slit, two described first metal tapes of Arbitrary Relative are with described first narrow slit as axle, axisymmetricly
Distribution.
Low section small capacity double the most according to claim 2 polarization antenna for base station, it is characterised in that institute
State half-wave dipole antenna arm be shaped as square or circular arc is petal.
Low section small capacity double the most according to claim 2 polarization antenna for base station, it is characterised in that institute
Stating the first metal tape is metal band or T-shaped metal tape.
Low section small capacity double the most according to claim 2 polarization antenna for base station, it is characterised in that institute
Stating protruding minor matters is right-angled trapezium or rectangle.
Low section small capacity double the most according to claim 2 polarization antenna for base station, it is characterised in that institute
The back side giving an account of material plate is distributed four the second metal tapes, and four described second metal tapes are positioned at described
The edge of dielectric material plate, four described second metal tapes enclose, and two adjacent described second metals
Band angle is 90 °；
The first overlay region is there is in described second metal tape with the half-wave dipole antenna arm in described radiation fin front
Territory, described first overlapping region has eight；
The second overlapping region, institute is there is in described second metal tape with first metal tape in described radiation fin front
State the second overlapping region and have four.
Low section small capacity double the most according to claim 6 polarization antenna for base station, it is characterised in that institute
Stating the second metal tape is metal band or becket.
Low section small capacity double the most according to claim 1 polarization antenna for base station, it is characterised in that institute
State support means and include the first balun support arm and the second balun support arm, described first balun support arm and
The second orthogonal assembling of balun support arm.
Low section small capacity double the most according to claim 8 polarization antenna for base station, it is characterised in that institute
The front stating the first balun support arm includes the first microstrip line balun, the first radiating patch point, the first weldering
Connect the strong point, the second welding strong point and the 3rd welding strong point, wherein:
The centre of described first balun support arm has elongated slot, is used for and the second orthogonal assembling of balun support arm；
Described first microstrip line balun is direct-connected with described first radiating patch point；
The described first welding strong point, the second welding strong point and the 3rd welding strong point are by metal copper layer
Make；
The front of described first balun support arm welds the strong point with described power distribution plate by described first
It is welded to connect with the second welding strong point；
The front of described first balun support arm is welded the strong point with described radiation fin by the described 3rd and is welded
Connect.
Low section small capacity double the most according to claim 8 polarization antenna for base station, it is characterised in that
The back side of described first balun support arm includes the first balun ground wire, the second radiating patch point, the 4th weldering
Connect the strong point and the 5th welding strong point, wherein:
Described first balun ground wire is direct-connected with described second radiating patch point；
The described 4th welding strong point is not connected with described first balun ground wire；
The described 4th welding strong point and the 5th welding strong point are made by metal copper layer；
The back side of described first balun support arm welds the strong point with described power distribution plate by the described 5th
It is welded to connect；
The back side of described first balun support arm is welded the strong point with described radiation fin by the described 4th and is welded
Connect.
11. low section small capacity double according to claim 8 polarization antenna for base station, it is characterised in that
The front of described second balun support arm include the second microstrip line balun, the 3rd radiating patch point, the 6th
The welding strong point and the 7th welding strong point, wherein:
The centre of described second balun support arm has short groove, is used for and the first orthogonal assembling of balun support arm；
Described second microstrip line balun is direct-connected with described 3rd radiating patch point；
The described 6th welding strong point and the 7th welding strong point are made by metal copper layer；
The front of described second balun support arm welds the strong point with described power distribution plate by the described 7th
It is welded to connect；
The front of described second balun support arm is welded the strong point with described radiation fin by the described 6th and is welded
Connect.
12. low section small capacity double according to claim 8 polarization antenna for base station, it is characterised in that
The back side of described second balun support arm includes the second balun ground wire, the 4th radiating patch point, coupling branch
Joint, the 8th welding strong point and the 9th welding strong point, wherein:
Described 4th radiating patch point, coupling minor matters and the 8th welding the strong point respectively with described second bar
Human relations ground wire is direct-connected；
The described 8th welding strong point and the 9th welding strong point are made by metal copper layer；
The back side of described second balun support arm welds the strong point with described power distribution plate by the described 8th
It is welded to connect；
The back side of described second balun support arm is welded the strong point with described radiation fin by the described 9th and is welded
Connect.
13. low section small capacity double according to claim 8 polarization antenna for base station, it is characterised in that
Height is Antenna Operation mid frequency the eight of described first balun support arm and the second balun support arm/
One wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256198.4U CN205543223U (en) | 2016-03-30 | 2016-03-30 | Low small -size double polarization base station antenna of section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256198.4U CN205543223U (en) | 2016-03-30 | 2016-03-30 | Low small -size double polarization base station antenna of section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205543223U true CN205543223U (en) | 2016-08-31 |
Family
ID=56786780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620256198.4U Expired - Fee Related CN205543223U (en) | 2016-03-30 | 2016-03-30 | Low small -size double polarization base station antenna of section |
Country Status (1)
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| CN (1) | CN205543223U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655702A (en) * | 2016-03-30 | 2016-06-08 | 上海安费诺永亿通讯电子有限公司 | Low-profile small-scale dual-polarized base station antenna |
| CN108711673A (en) * | 2018-05-17 | 2018-10-26 | 摩比天线技术（深圳）有限公司 | Integrated radiation unit and the intensive aerial array of antenna, 5G |
| WO2020134362A1 (en) * | 2018-12-28 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Antenna, antenna array and base station |
| US10998631B2 (en) | 2018-02-13 | 2021-05-04 | Sercomm Corporation | Antenna system |
-
2016
- 2016-03-30 CN CN201620256198.4U patent/CN205543223U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655702A (en) * | 2016-03-30 | 2016-06-08 | 上海安费诺永亿通讯电子有限公司 | Low-profile small-scale dual-polarized base station antenna |
| CN105655702B (en) * | 2016-03-30 | 2019-07-26 | 上海安费诺永亿通讯电子有限公司 | A kind of low section small capacity double polarization antenna for base station |
| US10998631B2 (en) | 2018-02-13 | 2021-05-04 | Sercomm Corporation | Antenna system |
| CN108711673A (en) * | 2018-05-17 | 2018-10-26 | 摩比天线技术（深圳）有限公司 | Integrated radiation unit and the intensive aerial array of antenna, 5G |
| WO2020134362A1 (en) * | 2018-12-28 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Antenna, antenna array and base station |
| US10992062B2 (en) | 2018-12-28 | 2021-04-27 | AAC Technologies Pte. Ltd. | Antenna, antenna array and base station |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20210330 |