CN103887600A - Wireless coverage antenna unit, antenna assembly and multi-antenna assembly - Google Patents
Wireless coverage antenna unit, antenna assembly and multi-antenna assembly Download PDFInfo
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- CN103887600A CN103887600A CN201210554922.8A CN201210554922A CN103887600A CN 103887600 A CN103887600 A CN 103887600A CN 201210554922 A CN201210554922 A CN 201210554922A CN 103887600 A CN103887600 A CN 103887600A
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Abstract
The invention relates to a wireless coverage antenna unit. The wireless coverage antenna unit comprises a substrate; an oscillator which is arranged on the substrate for radiating electromagnetic waves; and a director which is arranged on the substrate for making the beam width radiated by the antenna unit in a default frequency band is not less than 180 degrees according to the structure, the size and the distance between the antenna unit and the oscillator, and restraining the radiation intensity of the antenna unit in the coverage of another antenna unit having a same frequency. The antenna unit provided in the invention has the advantage of good directivity, narrow-beam wireless coverage can be realized in the default frequency band to avoid the electromagnetic radiation on regions which do not need to be covered, and the signal intensity in the coverage area can be realized.
Description
Technical field
The present invention relates to wireless telecommunications device field, more particularly, relate to a kind of wireless coverage antenna element, antenna module and many antenna modules.
Background technology
WLAN (wireless local area network) (WLAN) utilizes wireless technology to transmit data, speech and vision signal aloft.As a kind of replacement scheme or the extension of traditional wiring network, WLAN (wireless local area network) makes user's obtaining information whenever and wherever possible, has improved work efficiency.Wi-Fi is the wireless air interface that WLAN wireless device provides, facilitate that user is made a long-distance call, browsing page, send and receive e-mail, music download, digital photograph transmission etc.Wi-Fi applies more and more extensive on hand-held device, especially becomes the trend of current mobile communication industry.
In prior art, the antenna that Wi-Fi adopts is generally located at outdoor, and coverage rate is wider, can cause radiation to the region that does not need Wi-Fi to cover, how needing the indoor miniaturization Wi-Fi antenna that is positioned at of wireless coverage, and strengthening Wi-Fi signal, is problem to be solved by this invention.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of wireless coverage antenna element, antenna module and many antenna modules of the miniaturization based on narrow beam.
A kind of wireless coverage antenna element, comprises substrate; Be arranged at the oscillator of radiated electromagnetic wave on substrate; And be arranged on substrate, according to self structure, size and and oscillator between distance make the beamwidth of described antenna element radiation in default frequency range be less than 180 degree, and the director that described antenna element is suppressed in the radiation intensity of another common-frequency aerial unit coverage.
Optionally, described antenna element is at inhibition degree corresponding to the radiation intensity of another common-frequency aerial unit coverage≤-(y+x0)+20*log10 (R2/R1) dB; Wherein: y represents the signal to noise ratio standard using the electromagnetic wave of described another common-frequency aerial unit radiation as noise processed; X0 represents the maximum that described antenna element declines in the gain of earth coverage area territory; R1 represents the distance between described antenna element decorating position and corresponding certain point of gain decline x0; R2 represents the distance between another common-frequency aerial unit coverage gains decline minimum value corresponding points and described antenna element decorating position.
Optionally, the be greater than-15dB of inhibition degree of described antenna element.
Optionally, the be greater than-20dB of inhibition degree of described antenna element.
Optionally, the be greater than-10dB of inhibition degree of described antenna element.
Optionally, inhibition angle △ θ=θ that described antenna element suppresses in the radiation intensity of another common-frequency aerial unit coverage
2-θ
1, wherein: θ 1, θ 2 represent respectively the angle that described antenna element antenna gain on the vertical range of preset height and described another edge, common-frequency aerial cell footprint territory declines between minimum, maximum corresponding points.
Optionally, described preset height is less than 70m.
Optionally, described preset height is less than 31m.
Optionally, described preset height is less than 25m.
Optionally, described preset height is less than 5m.
Optionally, the coverage of described antenna element is circular, oval or irregularly shaped.
Optionally, the coverage of described another common-frequency aerial unit is circular, oval or irregularly shaped.
Optionally, the coverage of described antenna element is identical or different from described another common-frequency aerial unit footprint size.
Optionally, the coverage of described antenna element is identical or different from described another common-frequency aerial unit coverage shape.
Optionally, described default frequency range is 802.11WLAN standard bands.
Optionally, described default frequency range is 2.484GHz-3.7GHz.
Optionally, described default frequency range is 2.4GHz-2.5GHz.
Optionally, described default frequency range is 3.65GHz-3.7GHz.
Optionally, described default frequency range is 4.9GHz-5.9GHz.
Optionally, described default frequency range is 5.15GHz-5.35GHz.
Optionally, described default frequency range is 5.725GHz-5.85GHz.
Optionally, described oscillator and director are conductor.
Optionally, described conductor is metal wire or sheet metal.
Optionally, described director has at least 2 and be parallel to each other.
Optionally, the center of at least 2 described directors on same straight line and described straight line perpendicular to described director.
Optionally, also comprise the feeder line being connected with oscillator.
Optionally, described oscillator comprises two strip conductor lines of conllinear, and parallel with the conductor lines of described director respectively.
Optionally, the total length of described oscillator is greater than the length of each described director.
The invention still further relates to a kind of wireless coverage antenna module, comprise reflecting surface and the antenna sets that is positioned at described reflecting surface one side for reflection electromagnetic wave, described antenna sets comprises the wireless coverage antenna element that at least one is above-mentioned, and the director of described reflecting surface, each described antenna element lays respectively at the oscillator both sides of corresponding antenna element.
Optionally, described antenna sets comprises three identical antenna elements, the substrate of each described antenna element is perpendicular to described reflecting surface, and three described antenna elements are mutually 120 degree, all equally arrange take same straight line as prolongation intersecting lens and to the distance of described prolongation intersecting lens.
Optionally, described antenna sets comprises three identical antenna elements, and the substrate of each described antenna element is perpendicular to described reflecting surface, and three antenna elements are mutually the substrate edge rear formation equilateral triangle that intersects of surface direction prolongation separately of 60 degree and three antenna elements.
The invention still further relates to the many antenna modules of a kind of wireless coverage, comprise reflecting surface and at least two antenna sets that are positioned at described reflecting surface one side for reflection electromagnetic wave, the wave frequency difference that different antennae group is used, each antenna sets comprises the antenna element that at least one is above-mentioned, and the director of described reflecting surface, each described antenna element lays respectively at the oscillator both sides of corresponding antenna element.
Optionally, described many antenna modules comprise the first antenna sets and the second antenna sets, and the oscillator size of the antenna element of the first antenna sets is greater than the oscillator size of the antenna element of the second antenna sets.
Optionally, described the first antenna sets and the second antenna sets comprise respectively three identical antenna elements, the substrate of each described antenna element is perpendicular to described reflecting surface, and three antenna elements of described the first antenna sets are mutually 120 degree, take same straight line as extending intersecting lens and all equating to the distance of described prolongation intersecting lens, the substrate that three antenna elements of described the second antenna sets are mutually 60 degree and three antenna elements forms equilateral triangle along intersecting after surface direction extends.
Optionally, three of described the second antenna sets antenna elements are arranged in three adjacent spaces of three antenna elements of described the first antenna sets successively.
With respect to prior art, beneficial effect of the present invention is: in default frequency range, antenna element, antenna module, many antenna modules according to Yagi antenna principle design have good directivity, wave beam is narrow, avoid not needing overlay area to cause electromagnetic radiation, and can improve the signal strength signal intensity of overlay area.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of antenna element of the present invention;
The schematic diagram of the antenna element radiated electromagnetic wave that Fig. 2 a, 2b provide for the embodiment of the present invention;
The antenna element gain reduction equivalent schematic that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is the structural representation with the antenna module of antenna element shown in Fig. 1;
Fig. 5 is the structural representation with many antenna modules of at least two antenna sets;
Fig. 6 is the vertical view of many antenna modules shown in Fig. 5;
Fig. 7 is the size schematic diagram of the antenna element of the first antenna sets of many antenna modules shown in Fig. 5;
Fig. 8 is the size schematic diagram of the antenna element of the second antenna sets of many antenna modules shown in Fig. 5;
Fig. 9 is the low-frequency range voltage standing wave ratio analogous diagram of many antenna modules shown in Fig. 5, Fig. 6;
Figure 10 is the directional diagram of above-mentioned many antenna modules in the time that frequency is 2.45GHz;
Figure 11 is the high band voltage standing wave ratio analogous diagram of many antenna modules shown in Fig. 5, Fig. 6;
Figure 12 is the directional diagram of above-mentioned many antenna modules in the time that frequency is 5.72GHz.
Embodiment
Now in detail with reference to the embodiment describing in accompanying drawing.For complete understanding the present invention, numerous details are mentioned in the following detailed description.But it should be appreciated by those skilled in the art that the present invention can realize without these details.In other embodiments, be not described in detail known method, process, assembly and circuit, in order to avoid unnecessarily make embodiment fuzzy.
As shown in Figure 1, antenna element 4 of the present invention comprises substrate 40 and is attached to oscillator and the director on substrate 40.Substrate 40 adopts the materials such as FR4, F4b, Teflon, polytetrafluoroethylene to make, or the baseplate material that adopts of other existing antennas.
Oscillator is for radiated electromagnetic wave, can be metal wire or sheet metal, be connected with feeder line, comprise two strip conductor lines, be respectively the first conductor lines 48 and the second conductor lines 49, wherein the first conductor lines 48 is electrically connected with the outer conductor of coaxial line feeder line, and the second conductor lines 49 is electrically connected with the heart yearn of coaxial line feeder line.Obviously, the position of the first conductor lines 48, the second conductor lines 49 is interchangeable.
As shown in Figure 1, the first conductor lines 48 and the second conductor lines 49 on same straight line, between the two every at regular intervals.
Director for according to self structure, size and and oscillator between distance make the beamwidth of antenna element 4 radiation in 802.11WLAN standard bands be less than 180 degree, for example adjust the length of director in 0.38-0.4 wave-length coverage, adjust the distance between director and oscillator, make the beamwidth of radiation of antenna element at 40-60 degree, generally, distance between director and oscillator is longer, and beamwidth is narrower.In concrete implementation process, also may need to consider the impact on beamwidth of spacing between number and the director of director.Wherein, wlan standard frequency range can be any one frequency range in 2.484GHz-3.7GHz, 2.4GHz-2.5GHz, 3.65GHz-3.7GHz, 4.9GHz-5.9GHz, 5.15GHz-5.35GHz or 5.725GHz-5.85GHz.Beamwidth scope can be any one scope in 0-180 degree, 130-160 degree, 90-120 degree, 40-60 degree or 10-30 degree, and preferably 40-60 degree can also be the narrow beam of other scopes that are less than 180 degree of arranging as required.
Shown in Fig. 2 a, 2b, the embodiment of the present invention provides the schematic diagram of antenna element radiated electromagnetic wave.One antenna element is at the A point radiated electromagnetic wave towards periphery that is h apart from ground level, antenna element is to formation circle, ellipse or erose overlay area on the ground, as the decline x1dB that gains at G0 point antenna element, gain decline x0dB(as 3dB, 5dB or 10dB at G1 point antenna element), Fig. 2 a shows the situation of x1=x0, and Fig. 2 b shows the situation of x1 ≠ x0.Take Fig. 2 a as example, suppose that G1 point is to be positioned at point corresponding to antenna element overlay area gain decline minimum value that A is ordered, corresponding beamwidth is θ
0, suppose that G2, G3 point is respectively the gain in another common-frequency aerial cell footprint territory minimum, 2 points corresponding to maximum that decline, and this another common-frequency aerial unit decline respectively-x1dB of gain of ordering at G2, G3 and-x2dB.Can calculate according to the distance between height h, A and G2 point that to be positioned at the beamwidth that antenna element that A orders orders at G2 be θ 1; Be R3 according to height h, A point to the distance between G3 point, can calculate that to be positioned at the beamwidth that antenna element that A orders orders at G3 be θ 2.For the antenna element that suppresses to order at A causes co-channel interference between G2, G3 point, the inhibition angle △ θ=θ of the antenna element that needs inhibition is ordered at A between radiation intensity and G2, the G3 point in another common-frequency aerial cell footprint territory
2-θ
1.
Wherein, the coverage of described antenna element and another common-frequency aerial unit is circular, oval or irregularly shaped.The coverage of described antenna element is identical or different from described another common-frequency aerial unit footprint size, coverage shape is identical or different.
Power in using another antenna transmission to this antenna element coverage is processed as noise, selects ydB as signal to noise ratio standard simultaneously, and x0 represents the maximum that described antenna element declines in the gain of earth coverage area territory; Be positioned at antenna element that A orders at G2 point gain decline x1dB<=-(y+x0) dB+20*log10 (R2/R1) dB, can avoid co-channel interference.Be positioned at antenna element that A orders at G3 point gain decline x2dB<=-(y+x0) dB+20*log10 (R3/R1) dB, can avoid co-channel interference.Due to R3>R2,-x2dB<-x1dB,-x2dB belongs to and is less than-x1dB scope, and being therefore positioned at the antenna element that A orders needs to meet in the radiation intensity (i.e. degree of inhibition) in another common-frequency aerial cell footprint territory: x1dB<=-(y+x0) dB+20*log10 (R2/R1) dB.For example, antenna element suspension height is 25 meters, and half-power covering radius is 18 meters, 44.3 meters of another common-frequency aerial unit of centre distance, R1=30.8 rice, R2=50.9 rice; Select 20dB as signal to noise ratio standard, x1dB<=-(y+x0) dB+y*log10 (R2/R1) dB=-(20+3) dB+20*log10 (50.9/30.8) dB=-20.3dB+4.36dB=-18.64dB, at the inhibition degree <=-18.64dB in another common-frequency aerial cell footprint territory.
The height of antenna element is set according to demand, and antenna element is less than 70m apart from the height on ground under normal circumstances, if the height of Beijing Bird's Nest is that 68.5m, minimum altitude are 42m; The height in great Yun gymnasium, Shenzhen is 30.5m, and the height of some building is 25m, and the height of common building is 2.5-3m.Because being positioned at of antenna is highly different, suppressing angle also can be different from inhibition degree.As shown in Figure 3, in the time that antenna element is positioned at highly the A ' point for h ', the position of the gain decline x0dB corresponding ground of antenna element is G point, can calculate antenna element be positioned at the minimum beamwidth θ that A ' puts according to the distance between height h ', A ' point and G point
0', in like manner, can calculate antenna element and be positioned at the inhibition degree of A ' point and suppress angle △ θ ', be under normal circumstances greater than-the 30dB of inhibition degree of antenna element, as be greater than-15dB, be greater than-20dB or be greater than-10dB; Suppress angle △ θ '.
Director can only have one, also can have multiple, be and be attached to the lip-deep conductor of substrate 40, when director has when multiple, the conductor lines of each formation director is parallel to each other, and be all positioned at the same side of oscillator, be used for strengthening the electromagnetic intensity of residing oscillator one side, concrete structure as shown in Figure 1.The 3rd conductor lines 45 in Fig. 1, the 4th conductor lines 46, the 5th conductor lines 47 form respectively three directors, and three directors are arranged in parallel to each other, and parallel with the first conductor lines 48, the second conductor lines 49 that form oscillator.The length of three directors can be identical, also can be different, and for electromagnetic wave is guided better effects if into, preferred length equates.In addition, the quantity of director can be three, can be also two even one, or more than three.Conventionally, director is less more than the impact of electromagnetic field being changed after five, and in order to save space and material, preferably director is three.
Preferably, 3 of the central points of the 3rd, the 4th, the 5th conductor lines 45,46,47 are on straight line line, and any strip conductor line in the vertical three of this straight line.Meanwhile, the straight line at oscillator place is greater than above-mentioned arbitrary strip conductor line with above-mentioned arbitrary strip conductor line parallel and total length, and preferably the center of oscillator and three central points of above-mentioned first, second, third conductor lines are on same straight line.
The above-mentioned first to the 5th conductor lines all adopts electric conducting material to make, and can be metal wire or sheet metal, preferable alloy line, such as copper, aluminium, silver etc.There is the antenna element of this structure, load onto after reflector at the opposite side of oscillator, can form the structure of similar Yagi antenna.Yagi antenna, claims again yagi-uda, is generally " king " font.Oscillator (claiming again active dipole) occupies in the middle of " king " word, is connected with feeder line.Reflector is positioned at oscillator one side, plays and weakens the electromagnetic effect of this side, and length is slightly longer than oscillator; Director is positioned at oscillator opposite side, is slightly shorter than oscillator, for strengthening the electromagnetic wave of this side at place.
The advantage of Yagi antenna is to have good directivity, and the director providing by the embodiment of the present invention, can realize narrow beam wireless coverage, avoids not needing overlay area to cause electromagnetic radiation, and can improve the signal strength signal intensity of overlay area.
The embodiment of the present invention is also protected a kind of antenna module, as shown in Figure 4, comprises reflecting surface 1 and is contained in the above-mentioned antenna element 4 on reflecting surface 1.When antenna element 4 has multiplely, and the operating frequency of these antenna unit 4 is in the time of same frequency or same frequency range, and they form an antenna sets.
The electromagnetic wave that reflecting surface 1 uses for reflecting arbitrary antenna element 4, the electromagnetic wave of use refers to the electromagnetic wave of each antenna element generation or the electromagnetic wave that each antenna element receives.In certain embodiments, reflecting medium face 1 can adopt copper or other electric conducting material to make, and can a nonplanar surface.Be understandably, reflecting medium face 1 can have discrete point, as be processed into network structure or offer the mode such as porose the dielectric surface of realizing reflection wave function, wherein the size in network structure or hole is less than 1/10th of electromagnetic wavelength that described many antenna modules use.
Director on reflecting surface 1 and each antenna element 4 lays respectively at the oscillator both sides of this antenna element 4, entirety has formed the Yagi antenna of a miniaturization, wherein reflecting surface 1 is above-mentioned reflector, the first conductor lines 48 and second conductor lines 49 of oscillator form above-mentioned active dipole, and the 3rd, the 4th, the 5th conductor lines has formed three directors.And because oscillator of the present invention, director have all adopted conductor lines the form of non-metallic pipe, therefore volume reduces greatly, structure is compacter, and antenna also continues the good directivity of Yagi antenna.Meanwhile, multiple antenna elements 4 share a reflecting surface 1, also can greatly save space, reduce the volume of antenna.
When antenna element 4 has when multiple, preferably arrange according to rule definitely.Antenna element 4 shown in Fig. 4 has three, and three antenna elements 4 are identical, have identical baseplate material and substrate size, and material of oscillator and director, size, position etc. are also identical.The operating frequency of these three antenna elements 4 is also basic identical so, forms an antenna sets, for receiving and dispatching the electromagnetic wave of this operating frequency.
In Fig. 4, have three identical antenna elements 4, the substrate 40 of each antenna element 4 is vertically arranged on institute's matter reflecting surface 1, and three antenna elements are mutually 60 degree, and the substrate 40 of three antenna elements 4 is along intersecting formation equilateral triangle after surface direction prolongation separately.
Three antenna elements 4 can also be arranged according to another kind of mode, the substrate 40 that is each antenna element 4 is equally vertically arranged on reflecting surface 1, and three antenna elements 4 are mutually 120 degree, prolongation intersecting lens take same straight line as any two substrate surfaces, and three antenna elements 4 all equate to the distance of this prolongation intersecting lens.
Certainly, antenna module of the present invention can have three antenna elements, can also only have one, two or more than three.Antenna element also can be arranged according to the mode of above-mentioned decile angle, also can arrange according to array or random fashion.
When the antenna element 4 on reflecting surface 1 has multiple (herein multiple, all refer to more than two and two), and the operating frequency of multiple antenna elements 4 is incomplete same, antenna element 4 is incomplete same in other words while making operating frequency separately different, will be divided into different antenna sets according to different operating frequencies.The entirety that has multiple antenna sets on reflecting surface 1 and form, is called many antenna modules.
As shown in Figure 5, Figure 6, many antenna modules in the present embodiment have two antenna sets, each antenna sets comprises three identical antenna elements, hereinafter antenna element large size is called to the antenna sets that 2, three the first identical antenna elements 2 of the first antenna element form and is referred to as the first antenna sets.The antenna element that size is little is referred to as the antenna sets that 3, three the second identical antenna elements 3 of the second antenna element form and is referred to as the second antenna sets.Because the size of the first antenna element 2 is greater than the second antenna element 3, therefore, the antenna that the operating frequency of the antenna that the first antenna element 2 and reflecting surface 1 form will form lower than the second antenna element and reflecting surface 1.Therefore, many antenna modules of the present embodiment belong to dual-band antenna.Certainly, here the principal element that affects operating frequency is the size of oscillator, therefore, even if the size of the substrate of the first antenna element 2 and the second antenna element 3 is all identical, as long as the oscillator size of the first antenna element 2 is greater than the oscillator of the second antenna element 3, the former operating frequency conventionally all can be lower than the latter so.
The substrate of each antenna element is perpendicular to reflecting surface 1, and its installation makes the director of this antenna element and described reflecting surface 1 be positioned at the both sides of this antenna element oscillator.
As shown in Figure 6, three the first antenna elements 2 are mutually 120 degree, and prolongation intersecting lens take same straight line as three substrate surfaces, and three the first antenna elements 2 all equate to the distance of described prolongation intersecting lens.Also can be understood as, with the vertical view shown in Fig. 6, three the first antenna elements 2 are take same point as pivot, and arbitrary the first antenna element 2 overlaps with another first antenna element 2 after spending with this pivot rotation 120.
Three the second antenna elements 3 are arranged by the mode shown in Fig. 4, and the substrate that is mutually between two 60 degree and three the second antenna elements 3 intersects formation equilateral triangle after surface direction extends.And as shown in Figure 6, between every two the first antenna elements 2, be provided with second antenna element 3, and these two the first antenna elements 2 are symmetrically located at this second antenna element 3 both sides, make three the first antenna elements 2 be arranged in successively three adjacent spaces of three the second antenna elements 3.
In order to verify the effect of antenna module of the present invention and many antenna modules, according to the size of the first antenna element 2, the second antenna element 3 as shown in Figure 7, Figure 8, many antenna modules of arranging are as shown in Figure 5, Figure 6 carried out to analogous diagram that emulation obtains as shown in Fig. 9 to Figure 12.
Wherein, Figure 9 shows that low-frequency range standing-wave ratio analogous diagram, known according to simulation result, these many antenna modules, in 2.4000 ~ 2.4800GHz band limits, have very good impedance matching.
Figure 10 is the directional diagram of above-mentioned many antenna modules elect magnetic field that is 2.45GHz in frequency.As seen from the figure, the radiation directivity under this frequency is fine, can realize narrow beam and cover, and can meet the demand of wireless signal transmitting-receiving.
Wherein, Figure 11 shows that high band standing-wave ratio analogous diagram.Known according to simulation result, these many antenna modules, in 5.725 ~ 5.850GHz band limits, have extraordinary impedance matching.
Figure 12 is the directional diagram of above-mentioned many antenna modules elect magnetic field that is 5.725GHz in frequency.As seen from the figure, the radiation directivity under this frequency is fine, can realize narrow beam wireless coverage, avoids not needing overlay area to cause electromagnetic radiation, and can improve the signal strength signal intensity of overlay area, can meet the demand of indoor radio signal transmitting-receiving.
In sum, antenna element, antenna module, many antenna modules that the embodiment of the present invention provides have good directivity, can realize narrow beam wireless coverage, and there is bandwidth, high, easy debugging gains.Obviously, in the time that many antenna modules of the present invention have three or more antenna sets, can obtain multifrequency antenna, also belong to protection scope of the present invention.
In addition, it should be noted that, the antenna sets of the present embodiment is directly installed on reflecting surface, and therefore reflecting surface is equivalent to mounting base.Obviously, antenna sets is connected with reflecting surface after can first relatively fixing by other mounting structures again, does not even connect.Reflecting surface is only used for the electromagnetic wave that the antenna element of reflecting antenna group sends and receives, and must not play installation effect.Therefore, antenna module of the present invention and many antenna modules, as long as reflecting surface is positioned at a side of antenna element, within belonging to protection scope of the present invention.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (35)
1. a wireless coverage antenna element, is characterized in that, comprises substrate; Be arranged at the oscillator of radiated electromagnetic wave on substrate; And be arranged on substrate, according to self structure, size and and oscillator between distance make the beamwidth of described antenna element radiation in default frequency range be less than 180 degree, and the director that described antenna element is suppressed in the radiation intensity of another common-frequency aerial unit coverage.
2. wireless coverage antenna element according to claim 1, is characterized in that, described antenna element is at inhibition degree corresponding to the radiation intensity of another common-frequency aerial unit coverage≤-(y+x0)+20*log10 (R2/R1) dB;
Wherein: y represents the signal to noise ratio standard using the electromagnetic wave of described another common-frequency aerial unit radiation as noise processed; X0 represents the maximum that described antenna element declines in the gain of earth coverage area territory; R1 represents the distance between described antenna element decorating position and corresponding certain point of gain decline x0; R2 represents the distance between another common-frequency aerial unit coverage gains decline minimum value corresponding points and described antenna element decorating position.
3. wireless coverage antenna element according to claim 2, is characterized in that, the be greater than-15dB of inhibition degree of described antenna element.
4. wireless coverage antenna element according to claim 2, is characterized in that, the be greater than-20dB of inhibition degree of described antenna element.
5. wireless coverage antenna element according to claim 2, is characterized in that, the be greater than-10dB of inhibition degree of described antenna element.
6. wireless coverage antenna element according to claim 1, is characterized in that, inhibition angle △ θ=θ that described antenna element suppresses in the radiation intensity of another common-frequency aerial unit coverage
2-θ
1;
Wherein: θ 1, θ 2 represent respectively the angle that described antenna element antenna gain on the vertical range of preset height and described another edge, common-frequency aerial cell footprint territory declines between minimum, maximum corresponding points.
7. wireless coverage antenna element according to claim 6, is characterized in that, described preset height is less than 70m.
8. wireless coverage antenna element according to claim 6, is characterized in that, described preset height is less than 31m.
9. wireless coverage antenna element according to claim 6, is characterized in that, described preset height is less than 25m.
10. wireless coverage antenna element according to claim 6, is characterized in that, described preset height is less than 5m.
11. wireless coverage antenna elements according to claim 1, is characterized in that, the coverage of described antenna element is circular, oval or irregularly shaped.
12. wireless coverage antenna elements according to claim 1, is characterized in that, the coverage of described another common-frequency aerial unit is circular, oval or irregularly shaped.
13. wireless coverage antenna elements according to claim 1, is characterized in that, the coverage of described antenna element is identical or different from described another common-frequency aerial unit footprint size.
14. wireless coverage antenna elements according to claim 1, is characterized in that, the coverage of described antenna element is identical or different from described another common-frequency aerial unit coverage shape.
15. wireless coverage antenna elements according to claim 1, is characterized in that, described default frequency range is 802.11WLAN standard bands.
16. wireless coverage antenna elements according to claim 15, is characterized in that, described default frequency range is 2.484GHz-3.7GHz.
17. wireless coverage antenna elements according to claim 15, is characterized in that, described default frequency range is 2.4GHz-2.5GHz.
18. wireless coverage antenna elements according to claim 15, is characterized in that, described default frequency range is 3.65GHz-3.7GHz.
19. wireless coverage antenna elements according to claim 15, is characterized in that, described default frequency range is 4.9GHz-5.9GHz.
20. wireless coverage antenna elements according to claim 15, is characterized in that, described default frequency range is 5.15GHz-5.35GHz.
21. wireless coverage antenna elements according to claim 15, is characterized in that, described default frequency range is 5.725GHz-5.85GHz.
22. wireless coverage antenna elements according to claim 1, is characterized in that, described oscillator and director are conductor.
23. wireless coverage antenna elements according to claim 22, is characterized in that, described conductor is metal wire or sheet metal.
24. wireless coverage antenna elements according to claim 22, is characterized in that, described director has at least 2 and be parallel to each other.
25. wireless coverage antenna element according to claim 24, is characterized in that, the center of at least 2 described directors on same straight line and described straight line perpendicular to described director.
26. wireless coverage antenna elements according to claim 1, is characterized in that, also comprise the feeder line being connected with oscillator.
27. wireless coverage antenna element according to claim 1, is characterized in that, described oscillator comprises two strip conductor lines of conllinear, and parallel with the conductor lines of described director respectively.
28. wireless coverage antenna elements according to claim 1, is characterized in that, the total length of described oscillator is greater than the length of each described director.
29. 1 kinds of wireless coverage antenna modules, it is characterized in that, comprise reflecting surface and the antenna sets that is positioned at described reflecting surface one side for reflection electromagnetic wave, described antenna sets comprises at least one wireless coverage antenna element as described in claim 1 to 28, and the director of described reflecting surface, each described antenna element lays respectively at the oscillator both sides of corresponding antenna element.
30. wireless coverage antenna modules according to claim 29, it is characterized in that, described antenna sets comprises three identical antenna elements, the substrate of each described antenna element is perpendicular to described reflecting surface, and three described antenna elements are mutually 120 degree, all equally arrange take same straight line as prolongation intersecting lens and to the distance of described prolongation intersecting lens.
31. wireless coverage antenna modules according to claim 29, it is characterized in that, described antenna sets comprises three identical antenna elements, the substrate of each described antenna element is perpendicular to described reflecting surface, and three antenna elements are mutually the substrate edge rear formation equilateral triangle that intersects of surface direction prolongation separately of 60 degree and three antenna elements.
32. 1 kinds of many antenna modules of wireless coverage, it is characterized in that, comprise reflecting surface and at least two antenna sets that are positioned at described reflecting surface one side for reflection electromagnetic wave, the wave frequency difference that different antennae group is used, each antenna sets comprises at least one wireless coverage antenna element as described in claim 1 to 28, and the director of described reflecting surface, each described antenna element lays respectively at the oscillator both sides of corresponding antenna element.
The many antenna modules of 33. wireless coverage according to claim 32, it is characterized in that, described many antenna modules comprise the first antenna sets and the second antenna sets, and the oscillator size of the antenna element of the first antenna sets is greater than the oscillator size of the antenna element of the second antenna sets.
The many antenna modules of 34. wireless coverage according to claim 33, it is characterized in that, described the first antenna sets and the second antenna sets comprise respectively three identical antenna elements, the substrate of each described antenna element is perpendicular to described reflecting surface, and three antenna elements of described the first antenna sets are mutually 120 degree, take same straight line as extending intersecting lens and all equating to the distance of described prolongation intersecting lens, the substrate that three antenna elements of described the second antenna sets are mutually 60 degree and three antenna elements forms equilateral triangle along intersecting after surface direction extends.
The many antenna modules of 35. wireless coverage according to claim 34, is characterized in that, three antenna elements of described the second antenna sets are arranged in three adjacent spaces of three antenna elements of described the first antenna sets successively.
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| CN201210554922.8A CN103887600B (en) | 2012-12-19 | 2012-12-19 | Wireless coverage antenna element, antenna module and multi-antenna component |
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| CN201210554922.8A CN103887600B (en) | 2012-12-19 | 2012-12-19 | Wireless coverage antenna element, antenna module and multi-antenna component |
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| CN106953166A (en) * | 2017-04-28 | 2017-07-14 | 深圳前海科蓝通信有限公司 | A kind of intelligent mimo antenna of narrow beam scanning |
| WO2020048042A1 (en) * | 2018-09-05 | 2020-03-12 | 武汉虹信通信技术有限责任公司 | Decoupling device and mimo antenna |
| CN114094351A (en) * | 2021-11-11 | 2022-02-25 | 佛山市粤海信通讯有限公司 | 4TR antenna |
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|---|---|
| CN103887600B (en) | 2017-12-01 |
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