CN105958213A - Method of adjusting half-power lobe width of antenna array - Google Patents
Method of adjusting half-power lobe width of antenna array Download PDFInfo
- Publication number
- CN105958213A CN105958213A CN201610301234.9A CN201610301234A CN105958213A CN 105958213 A CN105958213 A CN 105958213A CN 201610301234 A CN201610301234 A CN 201610301234A CN 105958213 A CN105958213 A CN 105958213A
- Authority
- CN
- China
- Prior art keywords
- lobe width
- antenna element
- aerial array
- half power
- power lobe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0087—Apparatus or processes specially adapted for manufacturing antenna arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
Abstract
The invention relates to a method of adjusting the half-power lobe width of an antenna array, specifically comprising the following steps: first, antenna units are distributed into a uniform/non-uniform linear/area array on a substrate; and then, mediums of which the dielectric constant is not equal to 1 are added between the antenna units, wherein the thicknesses of the mediums are respectively b1, b2,...,b(n-1). According to the method of adjusting the half-power lobe width of an antenna array of the invention, mediums are added between antenna units to change the signal receiving phases of the antenna units so as to reduce or increase the half-power lobe width of the antenna array. Moreover, medium adding is simple to implement, and installation is easy.
Description
Technical field
The present invention relates to the aerial array in a kind of radio communication, particularly relate to a kind of regulation aerial array half power lobe
The method of width.
Background technology
The half power lobe width of antenna is a critically important parameter of beam antenna, and it refers to increase most less than antenna
The width of formed angle at benefit 3dB.Half power lobe width is the narrowest, and the directivity of radio wave is the best, and capacity of resisting disturbance is more
By force.It is presently mainly and reduces aerial array half power lobe width by the electric size increasing aerial array, it is common that pass through
Increase the distance between each antenna element and increase the number that aerial array comprises antenna element, increasing the electric chi of aerial array
Very little.For even linear array (even linear array refer to the spacing of adjacent radiation unit excitation amplitude equal, all radiation elements identical,
The excitation phase of adjacent radiation unit is constant), the electric size of lobe width and aerial array is inversely proportional to, and (aerial array comprises n sky
Line unit, the spacing between antenna element is d, then the electricity of aerial array is a size ofTherefore by increasing aerial array
Electric size can reduce the half power lobe width of aerial array.But the antenna element number being to increase electricity dimensional requirement is many,
Spacing between unit is big, thus causes the electric size of aerial array greatly, and cost is high, and along with the increase of size necessarily brings not
The problems such as easy installation, cost increase.
Because above-mentioned defect, the design people, the most in addition research and innovation, to founding a kind of new regulation antenna array
The method of row half power lobe width so that it is have more the value in industry.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide a kind of in the premise not increasing aerial array electricity size
The method of lower regulation aerial array half power lobe width, to reach to be reduced or increased the mesh of aerial array half power lobe width
's.
The method of the regulation aerial array half power lobe width of the present invention, is first scattered in each antenna element on substrate
Uniformly/linear array heterogeneous/face battle array, then adding dielectric constant between each described antenna element is not the medium of 1.
Further, described aerial array half power lobe width is regulated also by the thickness changing each described medium
Degree.
Further, between each described antenna element, add the dielectric constant medium more than 1 and reduce described antenna array
The half power lobe width of row.
Further, between each described antenna element, add the dielectric constant medium less than 1 and increase described antenna array
The half power lobe width of row.
Further, the signal that each described antenna element receives carries out Vector modulation through series/parallel feeding network
After obtain the reception signal of described aerial array.
Further, described series feed network includes the transmission line connected by each described antenna element, and with described
The coupling line that transmission line connects, by power divider by described coupling line and transmission line by power with constant amplitude homophase not constant amplitude
The Tong Xiang constant amplitude not out of phase mode of Tong Xiang not constant amplitude distributes to each described antenna element.
Further, described parallelly feeding network by the power divider of some parallel connections with constant amplitude homophase not constant amplitude homophase
The constant amplitude not out of phase mode of Tong Xiang not constant amplitude distributes power to each described antenna element.
By such scheme, the method for the regulation aerial array half power lobe width of the present invention by antenna element it
Between add medium and change antenna element and receive the phase place of signal, thus the half power lobe width of aerial array is reduced or increased,
And the mode increasing medium implements relatively simple, easily install；It addition, the thickness changing medium can also regulate half merit of antenna
Rate lobe width, simple to operation.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Accompanying drawing explanation
Fig. 1 is that wireless signal is with the schematic diagram incident with the horizontal α angle；
Fig. 2 is the schematic diagram that the present invention adds medium in an antenna array；
Fig. 3 is present invention schematic diagram when being embodied as.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Hereinafter implement
Example is used for illustrating the present invention, but is not limited to the scope of the present invention.
The present invention regulates the half power lobe width of aerial array by increasing medium between antenna element.
Specific implementation method is:
As in figure 2 it is shown, each antenna element is uniformly distributed in the horizontal direction on substrate linear array, between each antenna element
Away from for d, each antenna element is fed by feeding network, adds medium between antenna element, and the dielectric constant of medium is more than 1, is situated between
Matter thickness is respectively b1、b2…bn-1。
As it is shown in figure 1, when the wireless signal in air is not, during with the horizontal the incidence of α angle, to have between antenna element
During medium, it is assumed that the signal phase that antenna element 1 receives is 0, then antenna element 2,3 ... the phase place of the signal that n receives is divided
It is notEach antenna element receives
Signal obtains the reception signal of aerial array after carrying out Vector modulation by constant amplitude homophase feeding network, from above, when α=
When 0, the reception signal of aerial array is maximum, and along with the increase at α angle, the reception signal of aerial array is gradually reduced, and works as antenna array
When receiving the half that signal drops to maximum of row, is the half power lobe width of aerial array.When between antenna element
When adding the medium that thickness does not waits, received by antenna element again after medium need to being first passed through because of signal, it is assumed that antenna element 1
The signal phase received is 0, then antenna element 2,3 ... the phase place of the signal that n receives is respectively
Wherein εrFor the dielectric constant of medium, λ is air wavelength.The signal that each antenna element receives is through constant amplitude homophase transmission network
Network obtains the reception signal of aerial array after carrying out Vector modulation.As can be seen from Figure 2, when α=0, signal is by antenna list
Unit needs not move through medium before receiving, therefore, the signal that now antenna array receiver arrives with without as in the case of medium, and be sky
The maximum receiving signal of linear array, along with the increase of α, because after adding medium, the signal that each antenna element receives
Phase contrast is not added with during medium changing relatively, thus the signal obtained after causing Vector modulation changes, thus have adjusted
Half power lobe width.
View of the foregoing, it will be seen that after the medium that thickness does not waits is set between each antenna element, the letter that each antenna element receives
Number phase contrast relevant with the dielectric constant of medium.When adding the dielectric constant medium more than 1 between each antenna element, respectively
The phase contrast ratio of the signal that individual antenna element receives is not added with the when of medium big, such that it is able to reduce the half-power of aerial array
Lobe width；When adding the dielectric constant medium less than 1 between each antenna element, the signal that each antenna element receives
Phase contrast ratio be not added with the when of medium little, such that it is able to increase aerial array half power lobe width.
It addition, view of the foregoing, it will be seen that change the thickness i.e. b of medium1、b2…bn-1Value, it is possible to change each antenna element receive
The phase contrast of the signal arrived.Therefore, it can regulate medium to corresponding thickness, to obtain the half power lobe width wanted.
Feeding classification in the present invention can use series feed network, it is possible to uses parallelly feeding network, makes each antenna list
The signal that unit receives obtains the reception signal of aerial array after serial or parallel connection feeding network carries out Vector modulation.Specifically
, series feed i.e. utilizes transmission line to be connected by each antenna element, transmission line and coupling line form impedance transformer, and power divides
Orchestration provides power to each antenna element by impedance transformer；Parallelly feeding network by the power divider of some parallel connections by merit
Rate distributes to each described antenna element.Certainly, either series feed or parallelly feeding, power divider can use constant amplitude same
The Xiang not constant amplitude Tong Xiang constant amplitude not out of phase mode of Tong Xiang not constant amplitude provides power to each antenna element.Feeding classification can root
Determine according to concrete aerial array.
When being embodied as, being illustrated in figure 3 the aerial array of a 1x8, antenna element is patch antenna, each antenna
Unit use constant amplitude homophase feeding classification, antenna element center distance 40mm, start from the left side dielectric thickness be respectively 10mm,
15mm、20mm、25mm、20mm、15mm、10mm.When being not added with medium, the half power lobe width of aerial array is 8.5 °, when
Half power lobe width plus medium aft antenna array is 6.4 degree, reduces nearly 25%.
It addition, above-described embodiment describes with constant amplitude homophase feeding network, for various forms of not constant amplitudes, no
The serial or parallel connection feeding network of homophase is equally applicable；Simultaneously equally applicable to any type of antenna, antenna element is divided
Cloth does not do requirement, and the most each antenna element can be with uneven distribution, it is possible to be scattered in face battle array.
The above is only the preferred embodiment of the present invention, is not limited to the present invention, it is noted that for this skill
For the those of ordinary skill in art field, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and
Modification, these improve and modification also should be regarded as protection scope of the present invention.
Claims (7)
1. the method regulating aerial array half power lobe width, it is characterised in that: first by each antenna element on substrate
Being scattered in uniformly/linear array heterogeneous/face battle array, then adding dielectric constant between each described antenna element is not the medium of 1.
The method of regulation aerial array half power lobe width the most according to claim 1, it is characterised in that: also by
Change the thickness of each described medium to regulate described aerial array half power lobe width.
The method of regulation aerial array half power lobe width the most according to claim 1, it is characterised in that: each described
Add the dielectric constant medium more than 1 between antenna element and reduce the half power lobe width of described aerial array.
The method of regulation aerial array half power lobe width the most according to claim 1, it is characterised in that: each described
Add the dielectric constant medium less than 1 between antenna element and increase the half power lobe width of described aerial array.
5. according to the method for the regulation aerial array half power lobe width described in any one of claim 1-4, it is characterised in that:
The signal that each described antenna element receives obtains described aerial array after series/parallel feeding network carries out Vector modulation
Reception signal.
The method of regulation aerial array half power lobe width the most according to claim 5, it is characterised in that: described series connection
Feeding network includes the transmission line connected by each described antenna element, and the coupling line being connected with described transmission line, by power
Allotter is different with constant amplitude Tong Xiang not constant amplitude Tong Xiang constant amplitude not Tong Xiang not constant amplitude by power from transmission line by described coupling line
The mode of phase distributes to each described antenna element.
The method of regulation aerial array half power lobe width the most according to claim 5, it is characterised in that: described parallel connection
Feeding network is out of phase with constant amplitude Tong Xiang not constant amplitude Tong Xiang constant amplitude not Tong Xiang not constant amplitude by the power divider of some parallel connections
Mode distributes power to each described antenna element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610301234.9A CN105958213A (en) | 2016-05-09 | 2016-05-09 | Method of adjusting half-power lobe width of antenna array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610301234.9A CN105958213A (en) | 2016-05-09 | 2016-05-09 | Method of adjusting half-power lobe width of antenna array |
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| CN105958213A true CN105958213A (en) | 2016-09-21 |
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| CN201610301234.9A Pending CN105958213A (en) | 2016-05-09 | 2016-05-09 | Method of adjusting half-power lobe width of antenna array |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555031A (en) * | 2020-06-02 | 2020-08-18 | 江苏泰科微通讯科技有限公司 | Compact two-low four-high ultra-wideband multi-port base station antenna |
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| US20020101388A1 (en) * | 2000-11-17 | 2002-08-01 | Ems Technologies | Radio frequency isolation card |
| CN1768448A (en) * | 2003-02-01 | 2006-05-03 | 秦内蒂克有限公司 | Phased array antenna and inter-element mutual coupling control method |
| CN101252227A (en) * | 2007-11-21 | 2008-08-27 | 北京理工大学 | Millimeter wave integration multichannel active transmitting antenna and phase compensation method thereof |
-
2016
- 2016-05-09 CN CN201610301234.9A patent/CN105958213A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020101388A1 (en) * | 2000-11-17 | 2002-08-01 | Ems Technologies | Radio frequency isolation card |
| CN1768448A (en) * | 2003-02-01 | 2006-05-03 | 秦内蒂克有限公司 | Phased array antenna and inter-element mutual coupling control method |
| CN101252227A (en) * | 2007-11-21 | 2008-08-27 | 北京理工大学 | Millimeter wave integration multichannel active transmitting antenna and phase compensation method thereof |
Non-Patent Citations (2)
| Title |
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| （美）南泽: "《微波毫米波安防遥感技术》", 30 June 2015 * |
| 韩庆文: "《微波电路设计》", 31 January 2012 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555031A (en) * | 2020-06-02 | 2020-08-18 | 江苏泰科微通讯科技有限公司 | Compact two-low four-high ultra-wideband multi-port base station antenna |
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Effective date of registration: 20170512 Address after: Jinxi road Binhu District 214100 Jiangsu city of Wuxi province No. 100 Park 6 Building 5 layer Applicant after: Wuxi Feishetaige Technology Co. Ltd. Address before: 215000, Suzhou Industrial Park, Jiangsu Province, if No. 388, National University Science Park, No. 388, E building, room 803 Applicant before: SUZHOU JITAI INFORMATION TECHNOLOGY CO., LTD. |
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Application publication date: 20160921 |