CN104701610A - Miniature antenna unit capable of controlling wave beam widths and large-scale antenna array capable of controlling wave beam widths - Google Patents
Miniature antenna unit capable of controlling wave beam widths and large-scale antenna array capable of controlling wave beam widths Download PDFInfo
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- CN104701610A CN104701610A CN201410392011.9A CN201410392011A CN104701610A CN 104701610 A CN104701610 A CN 104701610A CN 201410392011 A CN201410392011 A CN 201410392011A CN 104701610 A CN104701610 A CN 104701610A
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- dielectric constant
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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Abstract
The invention discloses a miniature antenna unit capable of controlling wave beam widths and a large-scale antenna array capable of controlling wave beam widths. The miniature antenna unit comprises a radiation plate, a dielectric layer, a micro-strip slot antenna substrate and a reflecting cavity; the dielectric layer is arranged between the radiation plate and the front surface of the micro-strip slot antenna substrate; the dielectric constant of the dielectric layer is greater than that of air; the micro-strip slot antenna substrate is a high-dielectric-constant substrate; and the dielectric constant of the high-dielectric-constant substrate is greater than 3.5; and the reflecting cavity is formed in the reverse surface of the micro-strip slot antenna substrate. The miniature antenna unit and the large-scale antenna array are small in size, and the wave beam widths can be controlled by changing the dielectric constant of the dielectric layer in the antenna unit and the dielectric constant of the high-dielectric-constant substrate.
Description
Technical field
The present invention relates to mobile communication technology field, particularly, relate to a kind of miniature antenna elements and the large-scale antenna array with control wave beam width.
Background technology
Along with the rise of intelligent terminal and the abundant of wireless data application business, data user's number in wireless communication system significantly increases, data content is also no longer limited to traditional word or image, the demand of future customer to the multimedia service such as high definition video, mobile TV gets more and more, and causes wireless network traffic to present the situation of explosive growth.According to market institution prediction, in Future Ten year, wireless data service will increase 500-1000 doubly, and increase 1.6-2 every year on average doubly, this has higher requirement to the network capacity of wireless communication system.The method promoting wireless communication system network capacity has multiple, mainly comprises and promotes spectrum efficiency, raising network density, increase system bandwidth, IN service shunting etc.
As shown in Figure 1, the essential characteristic of large-scale antenna array system is exactly by the aerial array (from tens to several thousand) at base station side configuration One's name is legion, obtain than conventional antenna array system (antenna array columns is no more than 8) more accurately wave number control ability, then space multiplexing technique is passed through, identical running time-frequency resource is served more users to promote the spectrum efficiency of wireless communication system simultaneously, thus meet the transmission demand of magnanimity information in following 4G/5G wireless communication system.Large-scale antenna array system well can also suppress the interference in wireless communication system in addition, brings in huge community and the AF panel gain of minizone, the capacity of whole wireless communication system and coverage are further enhanced.
Large-scale antenna array system can deep exploitation spacing wireless resource, can significantly improve spectrum efficiency and the power efficiency of system in theory, is the important technology building the green system of broadband wireless communication of following high energy efficiency.But the antenna element of existing large-scale antenna array is comparatively large due to Volume design, causes the volume of large-scale antenna array larger further.At present, the area of the aerial array of 128 unit can accomplish 30cm × 120cm.In addition, the beamwidth of ordinary antennas is generally at 65 ° ± about 10 °, and beamwidth is narrower.
Summary of the invention
The present invention is to overcome the defect that in prior art, antenna element volume is larger, according to an aspect of the present invention, proposes a kind of miniature antenna elements with control wave beam width.
A kind of miniature antenna elements with control wave beam width that the embodiment of the present invention provides, comprising: radiation fin, dielectric layer, microstrip slot antenna substrate and reflection cavity; Dielectric layer is arranged between the front of radiation fin and microstrip slot antenna substrate, and the dielectric constant of dielectric layer is greater than the dielectric constant of air; Microstrip slot antenna substrate adopts high dielectric constant substrate, and the dielectric constant of high dielectric constant substrate is greater than 3.5; Reflection cavity is arranged at the reverse side of microstrip slot antenna substrate.
In technique scheme, microstrip slot antenna substrate comprises high dielectric constant substrate, microflute gap and microstrip line; Microflute gap is arranged at the front of high dielectric constant substrate, and microstrip line is arranged at the reverse side of high dielectric constant substrate; The front of microstrip slot antenna substrate and the front of high dielectric constant substrate are the same face, and the reverse side of microstrip slot antenna substrate and the reverse side of high dielectric constant substrate are the same face.
In technique scheme, the span of the dielectric constant of dielectric layer and high dielectric constant substrate is:
3.5＜N＜10,1＜M＜10；
Wherein, N is the dielectric constant of high dielectric constant substrate, and M is the dielectric constant of dielectric layer.
The miniature antenna elements that the embodiment of the present invention provides, by improving the dielectric constant of substrate, the frequency signal wavelength encouraging out is in the substrate shortened, like this in order to reach resonance radiation, microflute gap just needs to shorten accordingly, thus can substantially reduce the size of antenna substrate.In addition, the signal gone out when aerial radiation passes through the dielectric layer with more high-k, reduces the wavelength of signal, to the size also corresponding reduction of the radiation fin of its generation resonance; Meanwhile, because the dielectric constant of dielectric layer uprises, its loss strains greatly mutually, the signal gone out when aerial radiation passes through the dielectric layer with more high-k, the radiation efficiency of antenna just can reduce, and namely antenna gain reduces, thus the beamwidth of antenna is broadened.So the dielectric constant of dielectric layer is higher, and beamwidth is wider, namely the miniature antenna elements that provides of the embodiment of the present invention is by changing the material (namely changing the dielectric constant of dielectric layer) of dielectric layer, can the beamwidth of control antenna.
The present invention is to overcome the defect that in prior art, large-scale antenna array volume is larger, according to an aspect of the present invention, proposes a kind of miniaturized large-scale antenna array with control wave beam width.
A kind of miniaturized large-scale antenna array with control wave beam width that the embodiment of the present invention provides, is made up of the above-mentioned miniature antenna elements with control wave beam width.
In technique scheme, the miniaturized large-scale antenna array with control wave beam width is two-dimentional large-scale antenna array.
The miniaturized large-scale antenna array of control wave beam width that what the embodiment of the present invention provided have, adopt miniature antenna elements, volume is little, therefore have miniaturization, frivolous compact, wind area is little, lightweight, be convenient to the advantages such as installation.Meanwhile, by changing the dielectric constant of antenna element dielectric layer and high dielectric constant substrate, control wave beam width can be realized.This miniature antenna array can also realize green stealth, is arranged at by aerial array in the buildings such as road sign, realizes efficient signal and covers.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is large-scale antenna array system layout of the prior art;
Fig. 2 is the structure chart of embodiment of the present invention miniaturization antenna element;
Fig. 3 is the vertical view of 4 × 4 miniaturized large-scale antenna array in the embodiment of the present invention;
Fig. 4 is the end view of 4 × 4 miniaturized large-scale antenna array in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
According to the embodiment of the present invention, provide a kind of miniature antenna elements with control wave beam width, Fig. 2 is the structure chart of this miniature antenna elements, comprising: radiation fin 10, dielectric layer 20, microstrip slot antenna substrate 30 and reflection cavity 40.
Wherein, as shown in Figure 2, dielectric layer 20 is arranged between the front of radiation fin 10 and microstrip slot antenna substrate 30, and the dielectric constant of dielectric layer 20 is greater than the dielectric constant of air; Microstrip slot antenna substrate 30 adopts high dielectric constant substrate 301, and the dielectric constant of high dielectric constant substrate 301 is greater than 3.5; Meanwhile, reflection cavity 40 is arranged at the reverse side of microstrip slot antenna substrate 30.The reflecting surface 401 of reflection cavity 40, for reflecting the signal of microstrip slot antenna transmitting, ensures that antenna element only transmits in one direction.
Concrete, microstrip slot antenna substrate 30 comprises high dielectric constant substrate 301, microflute gap 302 and microstrip line 303.Wherein, microflute gap 302 is arranged at the front of high dielectric constant substrate 301, and microstrip line 303 is arranged at the reverse side of high dielectric constant substrate 301; The front of microstrip slot antenna substrate 30 and the front of high dielectric constant substrate 301 are the same face, and the reverse side of microstrip slot antenna substrate 30 and the reverse side of high dielectric constant substrate 301 are the same face.
The miniature antenna elements that the embodiment of the present invention provides, by improving the dielectric constant of substrate, the frequency signal wavelength encouraging out is in the substrate shortened, like this in order to reach resonance radiation, microflute gap just needs to shorten accordingly, thus can substantially reduce the size of antenna substrate.In addition, the signal gone out when aerial radiation passes through the dielectric layer with more high-k, reduces the wavelength of signal, to the size also corresponding reduction of the radiation fin of its generation resonance; Meanwhile, because the dielectric constant of dielectric layer uprises, its loss strains greatly mutually, the signal gone out when aerial radiation passes through the dielectric layer with more high-k, the radiation efficiency of antenna just can reduce, and namely antenna gain reduces, thus the beamwidth of antenna is broadened.So the dielectric constant of dielectric layer is higher, and beamwidth is wider, namely the miniature antenna elements that provides of the embodiment of the present invention is by changing the material (namely changing the dielectric constant of dielectric layer) of dielectric layer, can the beamwidth of control antenna.
The miniature antenna elements that the embodiment of the present invention provides, the element antenna structure of employing has the feature of high-gain: when dielectric layer is air, and the gain of miniature antenna elements can reach 8.3dB, and the gain of traditional antenna unit is generally at about 6dB.After improving dielectric layer dielectric constant, although element antenna gain drops to the same situation of traditional antenna unit, volume is much less than traditional antenna unit.
Below for LTE antenna, adopt the test result when substrate of differing dielectric constant and dielectric layer as shown in table 1 below:
Table 1
Can be drawn by table 1.The dielectric constant of antenna substrate is generally from 3.5 ~ 10, and when the dielectric constant of dielectric layer reaches about 10, antenna element is cisco unity malfunction.Therefore, the span of the dielectric constant of dielectric layer and high dielectric constant substrate is:
3.5＜N＜10；1＜M＜10；
Wherein, N is the dielectric constant of high dielectric constant substrate, and M is the dielectric constant of dielectric layer.Accordingly, antenna beamwidth approximately can be controlled between 60 ° to 110 °.
The embodiment of the present invention also provides a kind of miniaturized large-scale antenna array with control wave beam width, and this miniaturized large-scale antenna array is made up of the above-mentioned miniature antenna elements with control wave beam width.And this miniaturized large-scale antenna array is two-dimentional large-scale antenna array, specifically can adopt square array or circular array.The embodiment of the present invention is for square array, and the structure chart of this miniaturized large-scale antenna array specifically can see shown in Fig. 3-Fig. 4.It should be noted that, Fig. 3-Fig. 4 is for 4 × 4, and this array also can adopt other arrangement, and the arrays such as such as 4 × 8,4 × 16,8 × 8,8 × 16,8 × 32, do not illustrate herein.
In addition, because the antenna element adopted in the embodiment of the present invention has less volume, for 49 × 49 × 35 (unit mm), the aerial array of 4 × 16 comprises 128 unit, and (because each antenna element has two paths of signals circuit, therefore each antenna element can be regarded as two unit; The aerial array of 4 × 16 comprises 64 antenna elements as above, totally 128 unit), its area can accomplish 20cm × 80cm.Meanwhile, by changing the dielectric constant of antenna element dielectric layer and high dielectric constant substrate, control wave beam width can be realized.
The miniaturized large-scale antenna array of control wave beam width that what the embodiment of the present invention provided have, adopt miniature antenna elements, volume is little, therefore have miniaturization, frivolous compact, wind area is little, lightweight, be convenient to the advantages such as installation.Meanwhile, by changing the dielectric constant of antenna element dielectric layer and high dielectric constant substrate, control wave beam width can be realized.This miniature antenna array can also realize green stealth, is arranged at by aerial array in the buildings such as road sign, realizes efficient signal and covers.
The present invention can have multiple multi-form embodiment; above for Fig. 2-Fig. 4 by reference to the accompanying drawings to technical scheme of the present invention explanation for example; this does not also mean that the instantiation that the present invention applies can only be confined in specific flow process or example structure; those of ordinary skill in the art should understand; specific embodiments provided above is some examples in multiple its preferred usage, and the execution mode of any embodiment the claims in the present invention all should within technical solution of the present invention scope required for protection.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. there is a miniature antenna elements for control wave beam width, it is characterized in that, comprising: radiation fin, dielectric layer, microstrip slot antenna substrate and reflection cavity;
Described dielectric layer is arranged between the front of described radiation fin and described microstrip slot antenna substrate, and the dielectric constant of described dielectric layer is greater than the dielectric constant of air;
Described microstrip slot antenna substrate adopts high dielectric constant substrate, and the dielectric constant of described high dielectric constant substrate is greater than 3.5;
Described reflection cavity is arranged at the reverse side of described microstrip slot antenna substrate.
2. miniature antenna elements according to claim 1, is characterized in that, described microstrip slot antenna substrate comprises high dielectric constant substrate, microflute gap and microstrip line;
Described microflute gap is arranged at the front of described high dielectric constant substrate, and described microstrip line is arranged at the reverse side of described high dielectric constant substrate; The front of described microstrip slot antenna substrate and the front of described high dielectric constant substrate are the same face, and the reverse side of described microstrip slot antenna substrate and the reverse side of described high dielectric constant substrate are the same face.
3. miniature antenna elements according to claim 1 and 2, is characterized in that, the span of the dielectric constant of described dielectric layer and described high dielectric constant substrate is:
3.5＜N＜10；1＜M＜10；
Wherein, N is the dielectric constant of high dielectric constant substrate, and M is the dielectric constant of dielectric layer.
4. there is a miniaturized large-scale antenna array for control wave beam width, it is characterized in that, described in there is control wave beam width miniaturized large-scale antenna array be made up of the arbitrary described miniature antenna elements with control wave beam width of claim 1-3.
5. miniaturized large-scale antenna array according to claim 4, is characterized in that, described in there is control wave beam width miniaturized large-scale antenna array be two-dimentional large-scale antenna array.
6. miniaturized large-scale antenna array according to claim 5, is characterized in that, described in there is control wave beam width miniaturized large-scale antenna array be the large-scale antenna array of 4 × 4,4 × 16,8 × 8,8 × 16 or 8 × 32 arrays.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392011.9A CN104701610A (en) | 2014-08-11 | 2014-08-11 | Miniature antenna unit capable of controlling wave beam widths and large-scale antenna array capable of controlling wave beam widths |
| PCT/CN2015/085917 WO2016023427A1 (en) | 2014-08-11 | 2015-08-03 | Miniaturized antenna unit capable of controlling beam width and large-scale antenna array |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410392011.9A CN104701610A (en) | 2014-08-11 | 2014-08-11 | Miniature antenna unit capable of controlling wave beam widths and large-scale antenna array capable of controlling wave beam widths |
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| CN104701610A true CN104701610A (en) | 2015-06-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016023427A1 (en) * | 2014-08-11 | 2016-02-18 | 庄昆杰 | Miniaturized antenna unit capable of controlling beam width and large-scale antenna array |
| CN111725607A (en) * | 2019-03-20 | 2020-09-29 | Oppo广东移动通信有限公司 | Millimeter wave antenna module and electronic equipment |
| WO2020192531A1 (en) * | 2019-03-28 | 2020-10-01 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Antenna module and electronic device |
| CN112751172A (en) * | 2020-12-25 | 2021-05-04 | 电子科技大学 | High-gain directional radiation double-frequency receiving antenna for collecting radio frequency energy |
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| CN104701610A (en) * | 2014-08-11 | 2015-06-10 | 庄昆杰 | Miniature antenna unit capable of controlling wave beam widths and large-scale antenna array capable of controlling wave beam widths |
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- 2014-08-11 CN CN201410392011.9A patent/CN104701610A/en active Pending
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|---|---|---|---|---|
| WO2016023427A1 (en) * | 2014-08-11 | 2016-02-18 | 庄昆杰 | Miniaturized antenna unit capable of controlling beam width and large-scale antenna array |
| CN111725607A (en) * | 2019-03-20 | 2020-09-29 | Oppo广东移动通信有限公司 | Millimeter wave antenna module and electronic equipment |
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| WO2020192531A1 (en) * | 2019-03-28 | 2020-10-01 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Antenna module and electronic device |
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| CN112751172A (en) * | 2020-12-25 | 2021-05-04 | 电子科技大学 | High-gain directional radiation double-frequency receiving antenna for collecting radio frequency energy |
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| Publication number | Publication date |
|---|---|
| WO2016023427A1 (en) | 2016-02-18 |
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Application publication date: 20150610 |