CN207250720U

CN207250720U - Antenna

Info

Publication number: CN207250720U
Application number: CN201721101509.0U
Authority: CN
Inventors: 林少彬
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2017-08-30
Filing date: 2017-08-30
Publication date: 2018-04-17
Anticipated expiration: 2027-08-30

Abstract

The utility model discloses a kind of antenna, including：Fixed column,Active dipole,Reflector,Multiple directors,First feed line and the second feed line,The active dipole,Reflector and multiple directors are installed in the fixed column at interval,The active dipole is between the reflector and the multiple director,The active dipole,Reflector and the perpendicular disc-shaped structure in the fixed column of multiple directors,First feed line and the second feed line are connected with the active dipole respectively,The straight line at first feed line to the active dipole center is vertical with the straight line at second feed line to the active dipole center,By setting active dipole,Reflector,Multiple directors and the second feed line,Beamwidth of antenna width can be effectively increased,It can also make antenna dual polarization to realize MIMO functions,The isolation between dual polarization can also farthest be improved.

Description

Antenna

Technical field

Field of communication technology is the utility model is related to, more particularly to a kind of antenna.

Background technology

In correlation technique, general yagi aerial is influenced by its structure, and the bandwidth of yagi aerial is limited, if it is desired to realizing ((Multiple-Input Multiple-Output- multi-input multi-output systems) function is, it is necessary to separately add structural member ability by MIMO Realize, meanwhile, it can also improve the manufacture cost of yagi aerial.

Utility model content

The utility model is intended to solve at least some of the technical problems in related technologies.For this reason, this reality With a kind of antenna of new proposition, which can increase bandwidth width, can also realize MIMO functions, can also save and be manufactured into This.

Antenna according to the present utility model, it is characterised in that including：Fixed column, active dipole, reflector, multiple guide into Device, the first feed line and the second feed line, the active dipole, reflector and multiple directors are installed on described solid at interval On fixed column, the active dipole is between the reflector and the multiple director, the active dipole, reflector and more The perpendicular disc-shaped structure in the fixed column of a director.First feed line and the second feed line, first feed Line and the second feed line are connected with the active dipole respectively, the straight line of first feed line to the active dipole center with The straight line at second feed line to the active dipole center is vertical.

By setting active dipole, reflector, multiple directors and the second feed line, antenna width expansion can be conducive to Exhibition, so as to increase beamwidth of antenna width, moreover, can also make antenna dual polarization, and then can realize MIMO functions, together When, bipolar chemical conversion an angle of 90 degrees, the isolation between so can also farthest improving.

Alternatively, the fixed column includes：First fixed column and the second fixed column, first fixed column are fixed on described The bottom of second fixed column, wears in second fixed column and is fixed with the active dipole, the reflector and the multiple Director, so sets fixed column to play the work of support, connection and fixation to active dipole, reflector and multiple directors With, can also play the role of fine setting it is matched.

Further, first fixed column is cylindric that first feed line and second feed line are solid respectively It is scheduled in first fixed column and corresponding center angle is 90 °, antenna dual polarization function can be realized by so setting, so that It can realize MIMO functions.

Specifically, the radius of the director is r1, and the radius of the active dipole is r2, and the radius of the reflector is R3, the wavelength of the electromagnetic wave of the antenna transmission is λ, wherein, the ＜ r3 of r1 ＜ r2≤λ/4, so setting can be preferably real The dual polarization function of antenna.

Alternatively, the radius of at least two directors is different, and guiding can be played the role of by so setting, so as to So that the directionality of antenna is more preferable.

Further, on direction of the director away from the active dipole, the half of at least two director Footpath tapers off trend, so sets the gain that can lift antenna, can also increase the beamwidth of antenna, so as to further be lifted The dual polarization function of antenna.

Specifically, the identical director of radius is set close to the active dipole, and so setting preferably to make MIMO functions are realized in antenna dual polarization.

Alternatively, the thickness of the active dipole, reflector and multiple directors is d, wherein, 0.07cm≤d≤ 0.1cm, so sets the structural stability that can further improve antenna, so as to further improve the dual polarization work(of antenna Energy.

Specifically, it is characterised in that d=0.09cm, so sets the dual polarization function that can further improve antenna.

Antenna according to the present utility model, first feed line, second feed line shape at the active dipole Into distributing point, the distance at two distributing points to the active dipole center is 0.5cm, and so setting preferably to make Antenna possesses dual polarization function, and then MIMO functions can be better achieved.

Brief description of the drawings

Fig. 1 is the double-feed antenna structure diagram according to the utility model embodiment；

Fig. 2 is the structure diagram of distributing point in double-feed antenna；

Fig. 3 is the first distributing point and the second distributing point to the second top view for fixing center.

Reference numeral：

Antenna 10；

Fix 1；First fixed column 11；Second fixed column 12；Active dipole 2；Reflector 3；Multiple directors 4；First Feed line 5；Second feed line 6；Distributing point 7.

Embodiment

The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality The limitation of type.

The antenna 10 according to the utility model embodiment is described in detail below with reference to Fig. 1-Fig. 3.

As shown in Figure 1-Figure 3, included according to the antenna 10 of the utility model embodiment：Fixed column 1, active dipole 2, reflection Device 3, multiple directors 4, the first feed line 5 and the second feed line 6, active dipole 2, reflector 3 and multiple directors 4 are spaced apart Ground is installed in fixed column 1, fixed column 1 active dipole 2, reflector 3 and multiple directors 4 can be played fixed, support and The effect of connection, active dipole 2 active dipole 2, reflector 3 and multiple are guided between reflector 3 and multiple directors 4 The perpendicular disc-shaped structure in fixed column 1 of device 4, wherein, by the way that active dipole 2, reflector 3 and multiple directors 4 is equal Disc-shaped structure is arranged to, expansion, the processing and debugging of 10 bandwidth of antenna can be conducive to, also can more easily introduce duplex feeding Point, additionally it is possible to increase the bandwidth width of antenna 10.

Wherein, with reference to shown in Fig. 2 and Fig. 3, the first feed line 5 and the second feed line 6 are connected with active dipole 2 respectively, the The straight line at one feed line 5 to 2 center of active dipole is vertical with the straight line of the second feed line 6 to 2 center of active dipole, that is, Say, the first feed line 5 hangs down mutually with the line at 2 center of active dipole and the second feed line 6 and the line at 2 center of active dipole Directly.The tie point of first feed line 5 and active dipole 2 is the tie point of the first distributing point 7, the second feed line 6 and active dipole 2 For the second distributing point 7.Thus, by setting two distributing points, it is possible to achieve the dual polarization function of antenna 10, polarises also into 90 Spend angle, the isolation between so can farthest improving, so as to fulfill 5.8G WLAN MIMO.

Thus, by setting active dipole 2, reflector 3,4 and second feed line 6 of multiple directors, day can be conducive to 10 width of line extends, and so as to increase by 10 bandwidth of antenna, moreover, can also make 10 dual polarization of antenna, and then can realize MIMO functions, meanwhile, bipolar chemical conversion an angle of 90 degrees, the isolation between so can also farthest improving.

Alternatively, as Figure 1-Figure 2, fixed column 1 includes：First fixed column 11 and the second fixed column 12, first fixes Column 11 is fixed on the bottom of the second fixed column 12, is worn in the second fixed column 12 and is fixed with active dipole 2, reflector 3 and multiple Director 4, so sets the first fixed column 11 and the second fixed column 12 can be to active dipole 2, reflector 3 and multiple directors 4 play the role of support, connection and fixation, can also play the role of fine setting it is matched, at the same time it can also play the work of ground connection With.

Wherein, as shown in Figure 1, the radius of the first fixed column 11 and length take 0.8cm, 2.3cm respectively.

Further, as shown in Figure 1-Figure 3, the first fixed column 11 is arranged to cylindric, the first feed line 5 and the second feed Line 6 is separately fixed in the first fixed column 11, moreover, as shown in figure 3, in same level, the first feed line 5 and second is presented Electric wire 6 is respectively 90 ° with the center angle corresponding to the line at 11 center of the first fixed column, and antenna 10 can be realized by so setting Dual polarization function, can also improve the isolation between dual polarization, so as to realize MIMO functions.

Specifically, as Figure 1-Figure 2, the radius of director 4 is r1, and the radius of active dipole 2 is r2, reflector 3 Radius is r3, and the wavelength of the electromagnetic wave that antenna 10 transmits is λ, the radius of director 4 is r1, the radius of active dipole 2 be r2 and The value standard that the radius of reflector 3 is r3 is that r1 takes and takes about λ/4, r3 to take radius to be more than λ/4 less than λ/4, r2, wherein, r1 The ＜ r3 of ＜ r2≤λ/4, so set and disclosure satisfy that director 4, active dipole 2 and the requirement of 3 performance of reflector, so as to The preferably dual polarization function of realistic antenna 10.

Alternatively, as Figure 1-Figure 2, the radius of at least two directors 4 is different, and guiding can be played by so setting Effect, so as to so that the directionality of antenna 10 is more preferable.

Further, as Figure 1-Figure 2, it is distributed on direction of the director 4 away from active dipole 2, at least two guide into The radius of device 4 tapers off trend setting, wherein, the arrangement of director 4 can be it is isometric evenly distributed at equal intervals or Unequal length and not equidistant uneven arrangement, or equal length and not equidistant uneven arrangement, or differ Length and equidistant uneven arrangement, so set the gain that can lift antenna 10, can also increase by 10 bandwidth of antenna, from And it can further lift the dual polarization function of antenna 10.

Wherein, the orientation of director 4 be in Fig. 1 upper and lower to, moreover, from bottom to top director 4 radius present Subtract trend distribution.

Specifically, as Figure 1-Figure 2, the identical director 4 of radius is set close to active dipole 2, and so setting can The structural stability of antenna 10 is improved, so as to preferably make 10 dual polarization of antenna realize MIMO functions.

Wherein, 6-12 director 4 is usually set on an antenna 10, this paper directors 4 are arranged to 8, also, On direction of the director 4 away from active dipole 2, the radius of director 4 take successively 1.05cm, 1.05cm, 1.05cm, 1.03cm, 1.002cm, 0.92cm, 0.90cm, 0.84cm, the radius of active dipole 2 take 1.32cm, and the radius of reflector 3 takes 1.7cm, and And 12 each section size of the second fixed column take successively from top to bottom 1.1cm, 0.81cm, 0.7cm, 0.64cm, 1.25cm, 1.32cm、1.44cm、1.6cm、1.8cm、1.55cm.Alternatively, as Figure 1-Figure 2, active dipole 2, reflector 3 and multiple The thickness of director 4 is disposed as d, wherein, 0.07cm≤d≤0.1cm, so sets the knot that can further improve antenna 10 Structure stability, so as to further improve the dual polarization function of antenna 10.

Further, d=0.09cm, so sets the structural stability that can further improve antenna 10, so as to Further improve the dual polarization function of antenna 10.

According to the antenna 10 of the utility model embodiment, as depicted in figs. 1 and 2, the first feed line 5, the second feed line 6 exist Distributing point is formed at active dipole 2, the distance at two distributing points to 2 center of active dipole is 0.5cm, moreover, two feeds Spot welding is on active dipole 2, also, the perpendicular form of two distributing points is set, and is not disturbed mutually, and day can be made by so setting The impedance of line 10 meets requirement, so as to preferably make antenna 10 possess dual polarization function, and then can be preferably real Existing MIMO functions.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term State and be necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with Combine in an appropriate manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this area Technical staff can by the different embodiments or example described in this specification and different embodiments or exemplary feature into Row combines and combination.

Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to the limitation to the utility model is interpreted as, those of ordinary skill in the art are in the scope of the utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims

A kind of 1. antenna, it is characterised in that including：

Fixed column；

Active dipole, reflector and multiple directors, the active dipole, reflector and multiple directors are installed at interval In the fixed column, the active dipole is between the reflector and the multiple director, the active dipole, reflection Device and the perpendicular disc-shaped structure in the fixed column of multiple directors；

First feed line and the second feed line, first feed line and the second feed line are connected with the active dipole respectively, Straight line and second feed line to the active dipole center straight of first feed line to the active dipole center Line is vertical.
2. antenna according to claim 1, it is characterised in that the fixed column includes：First fixed column and second is fixed Column, first fixed column are fixed on the bottom of second fixed column, and being worn in second fixed column described in being fixed with has Source oscillator, the reflector and the multiple director.
3. antenna according to claim 2, it is characterised in that first fixed column is cylindric, first feed Line and second feed line are separately fixed in first fixed column and corresponding center angle is 90 °.
4. antenna according to claim 1, it is characterised in that the radius of the director is r1, the active dipole Radius is r2, and the radius of the reflector is r3, and the wavelength of the electromagnetic wave of the antenna transmission is λ, wherein, r1 ＜ r2≤λ/4 ＜ r3.
5. antenna according to claim 4, it is characterised in that the radius of at least two directors is different.
6. antenna according to claim 5, it is characterised in that in direction of the director away from the active dipole On, the radius of at least two director tapers off trend.
7. antenna according to claim 6, it is characterised in that the identical director of radius is close to the active dipole Set.
8. antenna according to claim 1, it is characterised in that the thickness of the active dipole, reflector and multiple directors Degree is d, wherein, 0.07cm≤d≤0.1cm.
9. antenna according to claim 8, it is characterised in that d=0.09cm.
10. antenna according to claim 1, it is characterised in that first feed line, second feed line are described Distributing point is formed at active dipole, the distance at two distributing points to the active dipole center is 0.5cm.