CN204088563U - Wi-Fi antenna for base station - Google Patents
Wi-Fi antenna for base station Download PDFInfo
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- CN204088563U CN204088563U CN201420372746.0U CN201420372746U CN204088563U CN 204088563 U CN204088563 U CN 204088563U CN 201420372746 U CN201420372746 U CN 201420372746U CN 204088563 U CN204088563 U CN 204088563U
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Abstract
The utility model discloses Wi-Fi antenna for base station, this Wi-Fi antenna for base station comprises: reflecting plate, dielectric-slab, x direction linear polarized antenna and y direction linear polarized antenna; X direction linear polarized antenna is mutually vertical with y direction linear polarized antenna polarised direction; X direction linear polarized antenna and y direction linear polarized antenna are printed on same dielectric-slab; Reflecting plate is arranged on the below of dielectric-slab.This Wi-Fi antenna of the present utility model is used for the Wi-Fi base station of 2.4-2.5GHz, while guarantee Signal transmissions bandwidth, provide higher gain, and the antenna of two linear polarizations can print processing in same printed board, difficulty of processing is little, is convenient to batch production processing.
Description
Technical field
The utility model relates to the Wi-Fi communications field, is specifically related to Wi-Fi antenna for base station.
Background technology
Wireless Fidelity and Wi-Fi (wireless fidelity) are a kind of supersets for communicating within the scope of tens of meters based on IEEE802.11 standard.By Wi-Fi technology, user can be allowed can to enjoy stable network service quickly and easily, and the flow pressure of the general communication base station of operator can be alleviated.Antenna is one of requisite equipment in the radio systems such as radio communication, broadcast, navigation, radar, observing and controlling, microwave remote sensing, and its major function has: one, can as the transducer between guided electromagnetic wave and spatial electromagnetic ripple; Two, allocation of space can be carried out by the direction controlling wave beam to energy; Three, radiation or the acceptance polarized wave of specifying.The performance of antenna directly has influence on the overall performance of mobile system, the update of mobile system and the restriction of functional structure, higher requirement be it is also proposed to antenna, existing simple antenna for base station has that frequency band is narrow, gain is low, high in cost of production defect, and thus needing provides a kind of new Wi-Fi antenna for base station.
Utility model content
The utility model provides a kind of Wi-Fi antenna for base station, to solve the problem that existing Wi-Fi antenna for base station frequency band is narrow, gain is low, cost is high.
For achieving the above object, the technical solution of the utility model is achieved in that
According to an aspect of the present utility model, provide a kind of Wi-Fi antenna for base station, this antenna for base station comprises: reflecting plate, dielectric-slab, x direction linear polarized antenna and y direction linear polarized antenna;
X direction linear polarized antenna is mutually vertical with y direction linear polarized antenna polarised direction;
X direction linear polarized antenna and y direction linear polarized antenna are printed on same dielectric-slab;
Reflecting plate is arranged on the below of dielectric-slab.
Wherein, x direction linear polarized antenna comprises: antenna cabling, reference ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate; Antenna cabling and microstrip feed line are arranged on the one side of dielectric-slab;
At the another side of dielectric-slab, corresponding microstrip feed line is provided with reference to ground; Sub-miniature A connector is through dielectric-slab; Reflecting plate is arranged on 1/4th free space wavelength places corresponding to dielectric-slab lower central frequency;
Wherein, antenna cabling comprises four inverse-F antenna unit, and four inverse-F antenna unit form the face battle array of 2 × 2;
Each end with reference to ground is symmetrically arranged two tooth tip shape regions, and the distance between two tooth tip shape regions can according to the distance adjustment between two adjacent unit of falling F.
Wherein, each inverse-F antenna unit earth terminal by plated-through hole with reference to be connected; The the most long-armed of four inverse-F antenna unit is obliquely installed about microstrip feed line is opposing between two; The feed end of four inverse-F antenna unit of antenna cabling is connected with the output of microstrip feed line respectively.
Wherein, the cabling of microstrip feed line in negative x direction walks line length 1/2nd wavelength than positive x direction; Microstrip feed line comprises the one-to-two Wilkinson power divider of three cascades; The portions incline that the output of microstrip feed line contacts with antenna cabling is arranged, so that be connected with the antenna cabling tilted; Microstrip feed line coaxially inputs feed by SMA interface.
Wherein, x direction linear polarized antenna also comprises: be arranged on the screw between reflecting plate and dielectric-slab,
Screw is used for, fixation reflex plate and dielectric-slab and adjustment distance between the two;
Reflecting plate and dielectric-slab are rectangle, and the length and width of reflecting plate are greater than the length and width of dielectric-slab respectively.
Wherein, y direction linear polarized antenna comprises: antenna cabling, reference ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate; Antenna cabling and microstrip feed line are arranged on the one side of dielectric-slab; Be provided with reference to ground at the corresponding microstrip feed line of the another side of dielectric-slab; Shape with reference to ground is the shape of falling M, and the distance between two tooth tip shape regions of the shape of falling M can adjust; Sub-miniature A connector is through dielectric-slab; Reflecting plate is arranged on 1/4th free space wavelength places corresponding to dielectric-slab lower central frequency;
Wherein, antenna cabling comprises four inverse-F antenna unit, and four inverse-F antenna unit form the linear array of 1 × 4, and the rotation direction of two often adjacent inverse-F antenna unit is contrary.
Wherein, each inverse-F antenna unit of antenna cabling earth terminal by plated-through hole with reference to be connected; Each inverse-F antenna unit of antenna cabling the most long-armed about microstrip feed line between two relative tilt arrange.
Wherein, microstrip feed line comprises the one-to-two Wilkinson power divider of three cascades, and the output of microstrip feed line is connected with four inverse-F antenna unit feed ends of antenna cabling; The portions incline that the output of microstrip feed line contacts with antenna cabling is arranged, so that be connected with the antenna cabling tilted; Microstrip feed line coaxially inputs feed by SMA interface;
Y direction linear polarized antenna also comprises: be arranged on the screw between reflecting plate and dielectric-slab, screw fixation reflex plate and dielectric-slab and adjustment distance between the two; Reflecting plate and dielectric-slab are rectangle, and the length and width of reflecting plate are greater than the length and width of dielectric-slab respectively.
According to another aspect of the present utility model, provide a kind of Wi-Fi antenna for base station, this antenna comprises: x direction linear polarized antenna;
X direction linear polarized antenna comprises: antenna cabling, reference ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate; Antenna cabling and microstrip feed line are arranged on the one side of dielectric-slab; At the another side of dielectric-slab, corresponding microstrip feed line is provided with reference to ground; Sub-miniature A connector is through dielectric-slab; Reflecting plate is arranged on 1/4th free space wavelength places corresponding to dielectric-slab lower central frequency; Wherein, antenna cabling comprises four inverse-F antenna unit, and four inverse-F antenna unit form the face battle array of 2 × 2; Each end with reference to ground is symmetrically arranged two tooth tip shape regions, and the distance between two tooth tip shape regions can adjust according between two adjacent unit of falling F.
According to another aspect of the present utility model, provide a kind of Wi-Fi antenna for base station, this Wi-Fi antenna for base station comprises:
Y direction linear polarized antenna; Y direction linear polarized antenna comprises: antenna cabling, reference ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate; Antenna cabling and microstrip feed line are arranged on the one side of dielectric-slab; Be provided with reference to ground at the corresponding microstrip feed line of the another side of dielectric-slab; Shape with reference to ground is the shape of falling M, and the distance between two tooth tip shape regions of the shape of falling M can adjust; Sub-miniature A connector is through dielectric-slab; Reflecting plate is arranged on 1/4th free space wavelength places corresponding to dielectric-slab lower central frequency; Wherein, antenna cabling comprises four inverse-F antenna unit, and four inverse-F antenna unit form the linear array of 1 × 4, and the rotation direction of two often adjacent inverse-F antenna unit is contrary.
This Wi-Fi antenna for base station of the present utility model, can provide higher gain, and the antenna of two linear polarizations can print processing in same printed board while guarantee bandwidth, size is little, gain is high, and process and assemble is simple, is conducive to controlling cost and be convenient to batch production processing.
Accompanying drawing explanation
The perspective view (having reflecting plate) of the Wi-Fi antenna for base station that Fig. 1 provides for the utility model embodiment;
The lateral elevational view (having reflecting plate) of the Wi-Fi antenna for base station that Fig. 2 provides for the utility model embodiment;
The perspective elevation (areflexia plate) of the Wi-Fi antenna for base station that Fig. 3 a provides for the utility model embodiment;
The upper aspect view (areflexia plate) of the Wi-Fi antenna for base station that Fig. 3 b provides for the utility model embodiment;
The subsurface view (areflexia plate) of the dual polarization Wi-Fi antenna for base station that Fig. 3 c provides for the utility model embodiment;
The schematic diagram reference that Fig. 4 provides for the utility model embodiment inverse-F antenna cell current affected;
The perspective view (having reflecting plate) of the x direction linear polarized antenna that Fig. 5 provides for the utility model embodiment;
The lateral elevational view (having reflecting plate) of the x direction linear polarized antenna that Fig. 6 provides for the utility model embodiment;
The perspective elevation (areflexia plate) of the x direction linear polarized antenna that Fig. 7 a provides for the utility model embodiment;
The upper aspect view (areflexia plate) of the x direction linear polarized antenna that Fig. 7 b provides for the utility model embodiment;
The subsurface view (areflexia plate) of the x direction linear polarized antenna that Fig. 7 c provides for the utility model embodiment;
The perspective view (having reflecting plate) of the y direction linear polarized antenna that Fig. 8 provides for the utility model embodiment;
The lateral elevational view (having reflecting plate) of the y direction linear polarized antenna that Fig. 9 provides for the utility model embodiment;
The perspective elevation (areflexia plate) of the y direction linear polarized antenna that Figure 10 a provides for the utility model embodiment;
The upper aspect view (areflexia plate) of the y direction linear polarized antenna that Figure 10 b provides for the utility model embodiment;
The subsurface view (areflexia plate) of the y direction linear polarized antenna that Figure 10 c provides for the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model execution mode is described in further detail.
Core concept of the present utility model is by doing process to inverse-F antenna unit, change the CURRENT DISTRIBUTION on common inverse-F antenna radiation arm, it is made to form circular polarization radiation, recycling the contrary circular polarization electromagnetic wave of two rotation directions can the characteristic of synthetic thread polarized electromagnetic wave, the unit of falling F is formed two kinds of different array arrangement modes, form the antenna of two kinds of linear polarizations respectively, again orthogonal for these two polarised directions two linear polarized antennas are printed on same dielectric-slab, obtain a kind of Wi-Fi antenna for base station.Because this Wi-Fi antenna for base station of the present utility model can provide linear polarization or dual polarized signals to cover for sector region.
The perspective view (having reflecting plate) of the Wi-Fi antenna for base station that Fig. 1 provides for the utility model embodiment; See Fig. 1, this Wi-Fi antenna for base station of the present utility model comprises:
Reflecting plate, dielectric-slab, x direction linear polarized antenna and y direction linear polarized antenna;
X direction linear polarized antenna is mutually vertical with y direction linear polarized antenna polarised direction;
X direction linear polarized antenna and y direction linear polarized antenna are printed on same dielectric-slab;
Reflecting plate is arranged on the below of dielectric-slab.
Comprise see Fig. 1, x direction linear polarized antenna:
Antenna cabling 11, reference ground 12, microstrip feed line 13, dielectric-slab 14, plated-through hole 15, SMA (Sub-Miniature-A) joint 16 and reflecting plate 17;
Antenna cabling 11 and microstrip feed line 13 are arranged on the one side of dielectric-slab 14; At the another side of dielectric-slab 14, corresponding microstrip feed line 13 is provided with reference to ground 12; Each end with reference to ground 12 is symmetrically arranged two tooth tip shape regions, and the distance between two tooth tip shape regions can according to the distance adjustment between two adjacent unit of falling F; Sub-miniature A connector 16 is through dielectric-slab 14; Reflecting plate 17 is arranged on 1/4th free space wavelength places corresponding to dielectric-slab 14 lower central frequency; Wherein, antenna cabling 11 comprises four inverse-F antenna unit, and four inverse-F antenna unit form the face battle array of 2 × 2.
Y direction linear polarized antenna comprises: antenna cabling 21, reference ground 22, microstrip feed line 23, dielectric-slab 24, plated-through hole 25, sub-miniature A connector 26 and reflecting plate 27;
Antenna cabling 21 and microstrip feed line 23 are arranged on the one side of dielectric-slab 24; Be provided with reference to ground 22 at the corresponding microstrip feed line 23 of the another side of dielectric-slab 24; Reference ground 22 shapes are the shape of falling M, and the distance between two tooth tip shape regions of the shape of falling M can adjust; Sub-miniature A connector 26 is through dielectric-slab 24; Reflecting plate 27 is arranged on 1/4th free space wavelength places corresponding to dielectric-slab 24 lower central frequency; Wherein, antenna cabling 21 comprises four inverse-F antenna unit, and four inverse-F antenna unit form the linear array of 1 × 4, and the rotation direction of two often adjacent inverse-F antenna unit is contrary.
See Fig. 1, Wi-Fi antenna for base station is dual polarized antenna, namely be by the combination of the linear polarized antenna of the linear polarized antenna of x direction polarization and y direction polarization, the antenna cabling of the linear polarized antenna of x direction polarization and the linear polarized antenna of y direction polarization, microstrip feed line, metal ground and metallic vias are all printed on same dielectric-slab, and share a reflecting plate.By regulating the spacing of two linear polarized antennas, the isolation between two antennas and directional diagram can be controlled, meeting the user demand of different application scene.
This Wi-Fi antenna comprising polarised direction orthogonal x direction linear polarized antenna and y direction linear polarized antenna of the present utility model, higher gain can be provided while guarantee bandwidth, the antenna pattern of two linear polarized antennas can cover the same area, two linear polarized antennas all define the antenna pattern of almost fan, namely the beamwidth both all in xoz face is wider, and the directional diagram of the beamwidth relative narrower in yoz face is to realize the quorum sensing inhibitor of single point-to-multipoint.Further, the antenna of two linear polarizations can print processing in same printed board, and difficulty of processing is little, is convenient to batch production processing.
The lateral elevational view (having reflecting plate) of the Wi-Fi antenna for base station that Fig. 2 provides for the utility model embodiment; The perspective elevation (areflexia plate) of the Wi-Fi antenna for base station that Fig. 3 a provides for the utility model embodiment; The upper aspect view (areflexia plate) of the Wi-Fi antenna for base station that Fig. 3 b provides for the utility model embodiment; The subsurface view (areflexia plate) of the dual polarization Wi-Fi antenna for base station that Fig. 3 c provides for the utility model embodiment; Below in conjunction with Fig. 2-Fig. 3 c, the structure of this antenna of the present utility model is described.
Dielectric-slab, microstrip feed line, antenna cabling, reference ground, plated-through hole and metallic reflection plate is specifically comprised see each linear polarized antenna of Fig. 2-Fig. 3 c2-, antenna cabling and microstrip feed line are arranged on above dielectric-slab, be arranged on below dielectric-slab to reference, reflecting plate is arranged on 1/4th free space wavelength places of the lower central frequency of dielectric-slab.The antenna cabling of each linear polarized antenna is the antenna of inverted-F formula, for the linear polarized antenna in x direction, four inverse-F antenna unit form the face battle array of 2 × 2, for the linear polarized antenna in y direction, four inverse-F antenna unit form the linear array of 1 × 4, the earth terminal that metallic vias connects inverse-F antenna unit with reference to ground.
In the present embodiment, reflecting plate and dielectric-slab are rectangle, and the length and width of reflecting plate are greater than the length and width of dielectric-slab respectively.The long limit of the most long-armed and dielectric-slab of inverse-F antenna unit tilts mutually, namely has the angle of certain angle between the two, and the incline direction of each unit is different; Screw is provided with, fixation reflex plate and dielectric-slab and adjustment distance between the two between reflecting plate and dielectric-slab.
Microstrip feed line comprises three one-to-two Wilkinson (Wilkinson) power splitters, feed is inputted by sub-miniature A connector, the characteristic impedance of the microstrip line of microstrip feed line four output ports is 50 ohm, and the output of microstrip line is the feed end of inverse-F antenna unit.
Be positioned on dielectric-slab subsurface with reference to ground, the effect with reference to ground is the ground of ground as microstrip feed line and inverse-F antenna unit.Due to reference to be in the radiating near field of inverse-F antenna unit, its shape can affect amplitude and the phase place of the surface current on the unit of falling F, being designed to tilted shape can make down the electric current on upper four arms of F meet the condition forming circular polarization, inverse-F antenna unit radiation circular polarization electromagnetic wave, left-hand circular polarization electromagnetic wave and right-handed circular polarization electromagnetic wave can form the electromagnetic wave of linear polarization.These two kinds different arrayed modes form polarization orthogonal linear polarized antenna x and linear polarized antenna y, and the antenna pattern of two linear polarized antennas is similar to.
The utility model utilizes inverted-F formula antenna as the unit of aerial array, by adjusting the distance between each inverse-F antenna unit, can adjust the impedance operator of antenna and radiation characteristic all to meet the requirement of practical application.Linear polarized antenna x and linear polarized antenna y all defines the antenna pattern of almost fan, and the beamwidth namely all in xoz face is wider, and the directional diagram of the beamwidth relative narrower in yoz face, to realize the quorum sensing inhibitor of single point-to-multipoint.Therefore the antenna pattern of two linear polarized antennas can cover the same area.
The schematic diagram reference that Fig. 4 provides for the utility model embodiment inverse-F antenna cell current affected; Each end on the reference ground of the utility model antenna is symmetrically arranged two tooth tip shape regions, and the distance between two tooth tip shape regions can adjust.The utility model utilizes the reference ground of special shape, has an impact to the surface current of common inverse-F antenna unit.See Fig. 4, for one of them inverse-F antenna unit of the linear polarized antenna in x direction, the surface current of x antenna cabling can be equivalent to orthogonal two groups of electric currents, wherein the amplitude of a pair electric current (A1-A2) and phase place be respectively 1.64A/m, 144.6 ° and 1.63A/m, 42.1 °, can be calculated its circular polarization electromagnetic wave axial ratio produced is 1.8dB; Another is 2.13A/m ,-17 to the amplitude of electric current (B1-B2) and phase place, and 1.86A/m ,-135 °, its produce electromagnetic axial ratio be 4.5dB.And the circular polarization rotation direction of two groups of electric current generations is identical, therefore the axial ratio of inverse-F antenna unit is between 1.8dB and 4.5dB, and integral shaft is smaller.Recycle the principle that the contrary circular polarization electromagnetic wave of two rotation directions can synthesize a linear polarised electromagnetic wave, form two orthogonal linear polarized antennas of polarised direction respectively.And be printed on same dielectric-slab and be combined as a dual polarization Wi-Fi antenna for base station.
The linear polarized antenna in x direction
The perspective view (having reflecting plate) of the x direction linear polarized antenna that Fig. 5 provides for the utility model embodiment; The lateral elevational view (having reflecting plate) of the x direction linear polarized antenna that Fig. 6 provides for the utility model embodiment; The perspective elevation (areflexia plate) of the x direction linear polarized antenna that Fig. 7 a provides for the utility model embodiment; The upper aspect view (areflexia plate) of the x direction linear polarized antenna that Fig. 7 b provides for the utility model embodiment; The subsurface view (areflexia plate) of the x direction linear polarized antenna that Fig. 7 c provides for the utility model embodiment; Below in conjunction with Fig. 5 to Fig. 7 c, the structure of x direction of the present utility model linear polarized antenna and effect are described.
Comprise see Fig. 5 to Fig. 7 c, x direction linear polarized antenna: antenna cabling 11, reference ground 12, microstrip feed line 13, dielectric-slab 14, plated-through hole 15, sub-miniature A connector 16, reflecting plate 17 and screw 18.
Reflecting plate 17 is positioned at 1/4th free space wavelength places corresponding to dielectric-slab 14 lower central frequency, and effect makes antenna one-way radiation (to the reflection of z-axis positive direction).As shown in figs. 7 a and 7b, antenna cabling 11 and microstrip feed line 13 are printed in above dielectric-slab 14.Antenna cabling 11 comprises four inverse-F antenna unit, and their longest edge and the long limit of dielectric-slab 14 tilt mutually.Microstrip feed line 13 comprises the Wilkinson power divider of three micro-band forms, and the microstrip line characteristic impedance of narrow strips part is 70.7 ohm, and the characteristic impedance of wide strip portion is 50 ohm.The output port of microstrip feed line 13 is directly antenna cabling 11 feed.As Fig. 7 a and 7c, be printed on below dielectric-slab 14 with reference to ground 12, sub-miniature A connector 16 is connected with the input of microstrip feed line 13 through dielectric-slab 14.
See Fig. 5 and Fig. 6, the length and width of reflecting plate 17 are greater than the length and width of dielectric-slab 14, and the size of reflecting plate 17 affects the back lobe size of aerial radiation.
See Fig. 6, microstrip feed line 13 be not one about distributing point symmetrical structure, but length 1/2 wavelength longer than+x direction in-x direction, the delayed phase 180 ° of the phase place ratio+x directional aerial cabling of such arrival-x directional aerial cabling, again according to the electromagnetic rotation direction of circular polarization that inverse-F antenna unit obtains, the overall performance of antenna x can be made to present linear polarization characteristics.
See Fig. 5, the broader bandwidth of microstrip feed line 13, makes the bandwidth of linear polarized antenna x just be determined by the antenna cabling 11 i.e. bandwidth of inverse-F antenna unit.Antenna cabling 11 is inverse-F antenna, and it is perception or capacitive that the impedance that the length of its each band determines antenna presents, and can be regulated resonance frequency and the bandwidth of entire physical, to meet different user demands by the length optimizing inverse-F antenna each several part.
As shown in Figure 7 c, 12 be printed on the subsurface of dielectric-slab 14 with reference to ground, the effect with reference to ground 12 is the ground of ground as microstrip feed line 13 and antenna cabling 11.The coaxial outer conductor of sub-miniature A connector 16 contacts with reference to ground 12, sub-miniature A connector 16 can the sub-miniature A connector on select tape method hurdle so that fixing; Antenna cabling 11 is connected with reference to ground 12 by plated-through hole 15.Can affect amplitude and the phase place of the surface current on antenna cabling 11 with reference to ground 12, when surface current reaches certain condition, inverse-F antenna unit is by radiation circular polarization electromagnetic wave.Shape with reference to ground 12 is different, they are also different on the impact of antenna cabling 11, orthogonal two groups of electric currents can be equivalent to by the surface current of the angle and size inverse-F antenna of optimizing its crown shape, see Fig. 7 a and Fig. 7 c, in an embodiment of utility model, each end with reference to ground 12 is symmetrically arranged two tooth tip shape regions, and the distance between two tooth tip shape regions can adjust according to the distance between the unit of falling F; The electric current of inverse-F antenna unit is flow through by the angle and size impact optimizing its crown shape.
See Fig. 4, such as, the amplitude of a pair electric current of an inverse-F antenna unit of the linear polarized antenna in x direction and phase place be respectively 1.64A/m, 144.6 ° and 1.63A/m, 42.1 °, can be calculated its axial ratio is 1.8dB; Another to the amplitude of electric current and phase place be 2.13A/m ,-17 ° and 1.86A/m ,-135 °, its axial ratio is 4.5dB.And two groups of current amplitudes are close, the circular polarization rotation direction of generation is identical, and therefore the axial ratio of this inverse-F antenna unit is between 1.8dB and 4.5dB, can realize the electromagnetic object of radiation circular polarization.And then by the length optimization to microstrip feed line 13, obtain suitable antenna pattern.
The linear polarized antenna in y direction
The perspective view (having reflecting plate) of the y direction linear polarized antenna that Fig. 8 provides for the utility model embodiment; The lateral elevational view (having reflecting plate) of the y direction linear polarized antenna that Fig. 9 provides for the utility model embodiment; The perspective elevation (areflexia plate) of the y direction linear polarized antenna that Figure 10 a provides for the utility model embodiment; The upper aspect view (areflexia plate) of the y direction linear polarized antenna that Figure 10 b provides for the utility model embodiment; The subsurface view (areflexia plate) of the y direction linear polarized antenna that Figure 10 c provides for the utility model embodiment.
Illustrate the structure of the linear polarized antenna in y direction below in conjunction with Fig. 8-Figure 10 c, the linear polarized antenna in y direction is the another kind of antenna form identical with the linear polarized antenna principle of x direction polarization, and the two polarised direction is mutually vertical.
As shown in Fig. 8 and Figure 10 a, y direction linear polarized antenna comprises: antenna cabling 21, reference ground 22, microstrip feed line 23, dielectric-slab 24, plated-through hole 25, sub-miniature A connector 26 and reflecting plate 27; Antenna cabling 21 and microstrip feed line 23 arrange the one side of dielectric-slab 24; Be provided with reference to ground 22 at the corresponding microstrip feed line 23 of the another side of dielectric-slab 24; Shape with reference to ground 22 is a shape of falling M, and the distance between two tooth tip shape regions of the shape of falling M can adjust; Sub-miniature A connector 26 is through dielectric-slab 24; Reflecting plate 27 is arranged on 1/4th free space wavelength places corresponding to dielectric-slab 24 lower central frequency; Wherein, antenna cabling 21 comprises four inverse-F antenna unit, and four inverse-F antenna unit form the linear array of 1 × 4, and the rotation direction of two often adjacent inverse-F antenna unit is contrary.The linear polarized antenna of y direction polarization and the linear polarized antenna difference of x direction polarization are mainly that the unit arrangement mode of antenna cabling 11 is different, and the antenna cabling 21 in Fig. 8, Figure 10 a is array formats of 1 × 4.Due to the structure of antenna y with x of two kinds of polarization modes and the effect of each part substantially identical, the composition of y direction linear polarized antenna and effect, see above to the explanation of the linear polarized antenna of x direction polarization, repeat no more herein.
To sum up, this Wi-Fi antenna for base station of the present utility model, gain higher (two linear polarized antennas all have 12dB gain), impedance operator can meet the demands (frequency range that return loss characteristic parameter S11 is less than-10dB covers 2.4-2.5GHz), assembling is simple, can realize dual polarised radiation in a printed board, reduces the processing assembling difficulty of antenna, the antenna pattern of two kinds of poliarizing antennas is similar to, and can provide quorum sensing inhibitor for the same area.In addition, the antenna pattern of often kind of polarization and polarised direction figure coincide better, and in half-power beam (HWBP) scope, cross polarization is good linear polarized antenna than main polarization little about 20dB or more.
According to another aspect of the present utility model, provide a kind of Wi-Fi antenna for base station, this antenna comprises: x direction linear polarized antenna;
X direction linear polarized antenna comprises: antenna cabling, reference ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate; Antenna cabling and microstrip feed line are arranged on the one side of dielectric-slab; At the another side of dielectric-slab, corresponding microstrip feed line is provided with reference to ground; Each end with reference to ground is symmetrically arranged two tooth tip shape regions, and the distance between two tooth tip shape regions can adjust; Sub-miniature A connector is through dielectric-slab; Reflecting plate is arranged on 1/4th free space wavelength places corresponding to dielectric-slab lower central frequency; Wherein, antenna cabling comprises four inverse-F antenna unit, and four inverse-F antenna unit form the face battle array of 2 × 2.
The Wi-Fi antenna of this x of the comprising direction linear polarized antenna that the utility model provides have high bandwidth and high-gain and cost low, assemble simple beneficial effect.
According to another aspect of the present utility model, provide a kind of Wi-Fi antenna for base station, this Wi-Fi antenna for base station comprises:
Y direction linear polarized antenna; Y direction linear polarized antenna comprises: antenna cabling, reference ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate; Antenna cabling and microstrip feed line are arranged on the one side of dielectric-slab; Be provided with reference to ground at the corresponding microstrip feed line of the another side of dielectric-slab; Each end with reference to ground is symmetrically arranged two tooth tip shape regions, and the distance between two tooth tip shape regions can adjust; Sub-miniature A connector is through dielectric-slab; Reflecting plate is arranged on 1/4th free space wavelength places corresponding to dielectric-slab lower central frequency; Wherein, antenna cabling comprises four inverse-F antenna unit, and four inverse-F antenna unit form the linear array of 1 × 4, and the rotation direction of two often adjacent inverse-F antenna unit is contrary.
This Wi-Fi antenna for base station of the present utility model can be the antenna only including an x direction linear polarized antenna or y direction linear polarized antenna, also can be that to comprise polarised direction orthogonal, the antenna of x direction linear polarized antenna or y direction linear polarized antenna.According to application scenarios, antenna or the two combination of different polarization can be selected, to meet different user demands.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection range of the present utility model.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., be all included in protection range of the present utility model.
Claims (10)
1. a Wi-Fi antenna for base station, is characterized in that, described Wi-Fi antenna for base station comprises: reflecting plate, dielectric-slab, x direction linear polarized antenna and y direction linear polarized antenna;
Described x direction linear polarized antenna is mutually vertical with described y direction linear polarized antenna polarised direction;
Described x direction linear polarized antenna and described y direction linear polarized antenna are printed on same dielectric-slab;
Described reflecting plate is arranged on the below of described dielectric-slab.
2. Wi-Fi antenna for base station as claimed in claim 1, it is characterized in that, described x direction linear polarized antenna comprises: antenna cabling, with reference to ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate;
Described antenna cabling and described microstrip feed line are arranged on the one side of described dielectric-slab;
At the another side of described dielectric-slab, corresponding described microstrip feed line is provided with described with reference to ground;
Described sub-miniature A connector is through described dielectric-slab;
Described reflecting plate is arranged on 1/4th free space wavelength places corresponding to described dielectric-slab lower central frequency;
Wherein, described antenna cabling comprises four inverse-F antenna unit, and described four inverse-F antenna unit form the face battle array of 2 × 2;
Described each end with reference to ground is symmetrically arranged two tooth tip shape regions, and the distance between described two tooth tip shape regions can according to the distance adjustment between described two adjacent unit of falling F.
3. Wi-Fi antenna for base station as claimed in claim 2, is characterized in that,
The earth terminal of described each inverse-F antenna unit is connected by described plated-through hole and described reference;
The the most long-armed of described four inverse-F antenna unit is obliquely installed about described microstrip feed line is opposing between two;
The feed end of four inverse-F antenna unit of described antenna cabling is connected with the output of described microstrip feed line respectively.
4. Wi-Fi antenna for base station as claimed in claim 2, is characterized in that, the cabling of described microstrip feed line in negative x direction walks line length 1/2nd wavelength than positive x direction;
Described microstrip feed line comprises the one-to-two Wilkinson power divider of three cascades;
The portions incline that the output of described microstrip feed line contacts with described antenna cabling is arranged, so that be connected with the described antenna cabling tilted;
Described microstrip feed line coaxially inputs feed by described SMA interface.
5. Wi-Fi antenna for base station as claimed in claim 2, is characterized in that,
Described x direction linear polarized antenna also comprises: be arranged on the screw between described reflecting plate and described dielectric-slab, described screw is used for, fixing described reflecting plate and described dielectric-slab and adjustment distance between the two;
Described reflecting plate and described dielectric-slab are rectangle, and the length and width of described reflecting plate are greater than the length and width of described dielectric-slab respectively.
6. Wi-Fi antenna for base station as claimed in claim 1, it is characterized in that, described y direction linear polarized antenna comprises: antenna cabling, reference ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate;
Described antenna cabling and described microstrip feed line are arranged on the one side of described dielectric-slab;
Be provided with described with reference to ground at the corresponding described microstrip feed line of the another side of described dielectric-slab; The described shape with reference to ground is the shape of falling M, and the distance between two tooth tip shape regions of the described shape of falling M can adjust;
Described sub-miniature A connector is through described dielectric-slab;
Described reflecting plate is arranged on 1/4th free space wavelength places corresponding to described dielectric-slab lower central frequency;
Wherein, described antenna cabling comprises four inverse-F antenna unit, and described four inverse-F antenna unit form the linear array of 1 × 4, and the rotation direction of two often adjacent inverse-F antenna unit is contrary.
7. Wi-Fi antenna for base station as claimed in claim 6, is characterized in that,
The earth terminal of each inverse-F antenna unit of described antenna cabling by plated-through hole with reference to be connected;
Each inverse-F antenna unit of described antenna cabling the most long-armed about described microstrip feed line between two relative tilt arrange.
8. Wi-Fi antenna for base station as claimed in claim 6, it is characterized in that, described microstrip feed line comprises the one-to-two Wilkinson power divider of three cascades, and the output of described microstrip feed line is connected with four inverse-F antenna unit feed ends of described antenna cabling;
The portions incline that the output of described microstrip feed line contacts with described antenna cabling is arranged, so that be connected with the described antenna cabling tilted;
Described microstrip feed line coaxially inputs feed by described SMA interface;
Described y direction linear polarized antenna also comprises: be arranged on the screw between described reflecting plate and described dielectric-slab, and described screw fixes described reflecting plate and described dielectric-slab;
Described reflecting plate and described dielectric-slab are rectangle, and the length and width of described reflecting plate are greater than the length and width of described dielectric-slab respectively.
9. a Wi-Fi antenna for base station, is characterized in that, described Wi-Fi antenna for base station comprises: x direction linear polarized antenna;
Described x direction linear polarized antenna comprises: antenna cabling, reference ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate;
Described antenna cabling and described microstrip feed line are arranged on the one side of described dielectric-slab;
At the another side of described dielectric-slab, corresponding described microstrip feed line is provided with described with reference to ground; Described each end with reference to ground is symmetrically arranged two tooth tip shape regions, and the distance between described two tooth tip shape regions can adjust;
Described sub-miniature A connector is through described dielectric-slab;
Described reflecting plate is arranged on 1/4th free space wavelength places corresponding to described dielectric-slab lower central frequency;
Wherein, described antenna cabling comprises four inverse-F antenna unit, and described four inverse-F antenna unit form the face battle array of 2 × 2.
10. a Wi-Fi antenna for base station, is characterized in that, described Wi-Fi antenna for base station comprises: y direction linear polarized antenna;
Described y direction linear polarized antenna comprises: antenna cabling, reference ground, microstrip feed line, dielectric-slab, plated-through hole, sub-miniature A connector and reflecting plate;
Described antenna cabling and described microstrip feed line are arranged on the one side of described dielectric-slab;
Be provided with described with reference to ground at the corresponding described microstrip feed line of the another side of described dielectric-slab; The described shape with reference to ground is the shape of falling M, and the distance between two tooth tip shape regions of the described shape of falling M can adjust; Described sub-miniature A connector is through described dielectric-slab;
Described reflecting plate is arranged on 1/4th free space wavelength places corresponding to described dielectric-slab lower central frequency;
Wherein, described antenna cabling comprises four inverse-F antenna unit, and described four inverse-F antenna unit form the linear array of 1 × 4, and the rotation direction of two often adjacent inverse-F antenna unit is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372746.0U CN204088563U (en) | 2014-07-04 | 2014-07-04 | Wi-Fi antenna for base station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372746.0U CN204088563U (en) | 2014-07-04 | 2014-07-04 | Wi-Fi antenna for base station |
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| CN204088563U true CN204088563U (en) | 2015-01-07 |
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| CN201420372746.0U Expired - Fee Related CN204088563U (en) | 2014-07-04 | 2014-07-04 | Wi-Fi antenna for base station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186099A (en) * | 2015-07-14 | 2015-12-23 | 中磊电子（苏州）有限公司 | Antenna module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186099A (en) * | 2015-07-14 | 2015-12-23 | 中磊电子（苏州）有限公司 | Antenna module |
| CN105186099B (en) * | 2015-07-14 | 2017-12-12 | 中磊电子（苏州）有限公司 | Anneta module |
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