CN102110904A - Antenna and antenna arranging method - Google Patents
Antenna and antenna arranging method Download PDFInfo
- Publication number
- CN102110904A CN102110904A CN2011100056963A CN201110005696A CN102110904A CN 102110904 A CN102110904 A CN 102110904A CN 2011100056963 A CN2011100056963 A CN 2011100056963A CN 201110005696 A CN201110005696 A CN 201110005696A CN 102110904 A CN102110904 A CN 102110904A
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- antenna
- array
- straight line
- element antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
- H01Q21/10—Collinear arrangements of substantially straight elongated conductive units
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Abstract
The invention provides an antenna and an antenna arranging method. The antenna comprises a plurality of element antennae, and the plurality of element antennae are arranged into a uniform straight line side array. By adopting the antenna and the antenna arranging method provided by the invention, the directional diagram of an antenna array can have a maximum value in a horizontal plane and is omnibearing, the gain of the antenna is improved, and further the performance of the antenna is improved.
Description
Technical field
The present invention relates to field of antenna, in particular to a kind of antenna and antenna alignment method.
Background technology
Along with the development of wireless technology, on notebook computer, use the data card series products to surf the Net whenever and wherever possible and become very popular.And WiMAX (Worldwide Interoperability for Microwave Access, micro-wave access global inter communication) and TD-LTE (Time-Division Long Term Evolution, long-term technology evolution of time-division) in the commercialization in future, will occupy very big market with its higher advantage such as user data rate undoubtedly.But because the profile of present various standard data card products all is tending towards compact, this must make data card antenna that very high gain can not be arranged, thereby weakens the receiving ability of data card, influences its scope of application.
In order under the existing network coverage condition, to enlarge the scope of application of terminal as far as possible, increase network capacity, can be by using the transmitting-receiving performance that this scheme of antenna improves the data card product that zooms out of high-gain.As shown in Figure 1 and Figure 2, be respectively and be furnished with the external data card of antenna and the schematic diagram of antenna-switching device of zooming out, dispose built-in aerial in the data card, antenna is zoomed out by zooming out the antennal interface connection in the data card outside, and antenna-switching device also comprises radio-frequency (RF) switch and radio frequency output unit, its course of work is: CPU detects the user mode zoom out antenna zooming out the antennal interface place, is to zoom out under the situation that antenna is used in testing result, and the control radio-frequency (RF) switch is connected to and zooms out antenna; Testing result is to zoom out under the situation that antenna is not used, and the control radio-frequency (RF) switch is connected to built-in aerial.This shows that zooming out antenna is part indispensable in the whole proposal, and be exactly to want it that high gain be arranged, and all there is the not enough problem of gain in existing antenna in application, make antenna performance relatively poor zooming out the strictest index of antenna requirement.
In application, all exist gain not enough at existing antenna in the correlation technique, make the problem that antenna performance is relatively poor not propose effective solution at present as yet.
Summary of the invention
The present invention aims to provide a kind of antenna and antenna alignment method, and existing antenna all exists gain not enough in application in the correlation technique to solve, and makes the problem that antenna performance is relatively poor.
According to an aspect of the present invention, provide a kind of antenna, comprised a plurality of element antennas, and described a plurality of element antenna is lined up even straight line and penetrated battle array.
More excellent, the feeding classification of employing series feed between described a plurality of element antennas.
More excellent, described antenna is integrated on the printing pcb board with low section characteristic.
More excellent, described a plurality of element antennas are half-wave doublet, and described oscillator is the planographic structure, and two arms of described oscillator lay respectively on the tow sides of described pcb board.
More excellent, described a plurality of element antennas distribute on vertical guide and form uniform straight line array.
More excellent, described a plurality of element antennas are arranged by the equidistant wavelength of each element antenna at vertical guide.
More excellent, the brachium of each element antenna less than self the centre frequency corresponding wavelength 1/4th.
More excellent, when described a plurality of element antennas are lined up N unit evenly straight line are penetrated gust, according to described N unit evenly the straight line array factor of penetrating battle array determine the gain of described antenna, wherein, described array factor formula is as follows:
Ψ (δ)=ξ+kd cos δ wherein, ξ is the initial phase difference between each element antenna, and d is the spacing between each element antenna, and k is a slope coefficient.
More excellent, as Ψ=2m π, when m was arbitrary integer, the array factor of antenna had maximum.
According to an aspect of the present invention, provide another antenna alignment method, having comprised: a plurality of element antennas that antenna is comprised are lined up even straight line and are penetrated battle array.
In embodiments of the present invention, a plurality of element antennas that antenna is comprised are lined up even straight line and are penetrated battle array, can make the directional diagram of antenna array have maximum at horizontal plane, and be omnidirectional, improve the gain of antenna, and then improve antenna performance.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is according to the use built-in aerial of correlation technique and disposes the external structural representation that zooms out the data card of antenna;
Fig. 2 is the antenna-switching device schematic diagram according to correlation technique;
Fig. 3 is the binary battle array schematic diagram according to the embodiment of the invention;
Fig. 4 is the front schematic view according to the WiMAX high-gain aerial structure of the embodiment of the invention;
Fig. 5 is the reverse side schematic diagram according to the WiMAX high-gain aerial structure of the embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Mention in the correlation technique, zooming out antenna is part indispensable in the whole proposal, and is exactly to want it that high gain be arranged to zooming out the strictest index of antenna requirement, and all there is the not enough problem of gain in existing antenna in application, make antenna performance relatively poor.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of antenna, comprises a plurality of element antennas, and a plurality of element antenna is lined up even straight line and penetrated battle array.
In embodiments of the present invention, a plurality of element antennas that antenna is comprised are lined up even straight line and are penetrated battle array, can make the directional diagram of antenna array have maximum at horizontal plane, and be omnidirectional, improve the gain of antenna, and then improve antenna performance.
More excellent, the feeding classification of employing series feed between a plurality of element antennas, feeding network is simple, is convenient to Project Realization.
More excellent, antenna is integrated on printing PCB (Printed Circuit Board, the printed circuit board (PCB)) plate with low section characteristic, reduces cost and makes antenna occupy as far as possible little space.
More excellent, a plurality of element antennas are half-wave doublet, and oscillator is the planographic structure, and two arms of oscillator lay respectively on the tow sides of pcb board, because antenna structure is very symmetrical, so its deviation in roundness is fine, and promptly the omni-directional of antenna is fine.
More excellent, a plurality of element antennas distribute on vertical guide and form uniform straight line array.
More excellent, a plurality of element antennas are arranged by the equidistant wavelength of each element antenna at vertical guide.
More excellent, the brachium of each element antenna less than self the centre frequency corresponding wavelength 1/4th.
More excellent, when a plurality of element antennas are lined up N unit evenly straight line are penetrated gust, according to N unit evenly the straight line array factor of penetrating battle array determine the gain of antenna, wherein, the array factor formula is as follows:
Ψ (δ)=ξ+kd cos δ wherein, ξ is the initial phase difference between each element antenna, and d is the spacing between each element antenna, and k is a slope coefficient.
As Ψ=2m π, when m was arbitrary integer, the array factor of antenna had maximum.
Concrete, the directivity of individual antenna is all very limited, and according to the directional diagram product theorem as can be known: if several element antennas are arranged according to certain particular form, make radiation field mutual superposition on desired location of each element antenna, then can strengthen the directivity of antenna.Because the element antenna when generally organizing battle array all adopts similar unit, so the directivity function of entire antenna battle array just equals the product of element antenna directivity function and array factor.And the element antenna that adopts in the embodiment of the invention has been defined as half-wave doublet, and therefore, the directivity function of antenna array is just only decided by array factor.For N unit uniform straight line array (the element antenna structure is identical, and equidistantly, constant amplitude excitation and phase place be along the battle array axis line array of equivalent increasing or decreasing successively), its array factor is:
Ψ (δ)=ξ+kd cos δ wherein, ξ is the initial phase difference between each element antenna.When Ψ=2m π (m=0, ± 1, ± 2 ...) and the time, the array factor of antenna has maximum.Binary battle array schematic diagram when Figure 3 shows that N=2, formed N unit's battle array and binary battle array are similar when N gets other numerical value, do not do at this and give unnecessary details.
Make array factor realize maximum, a kind of simple method is only to need Ψ=0 is got final product.Owing to require antenna in horizontal plane, to have omni-directional usually in the practical application, element antenna is distributed on vertical guide form uniform straight line array; And make the spacing d=λ between element antenna, will make that the initial phase difference ξ between element antenna is 0 ° just like this.This moment, array factor was when reaching maximum, and δ equals 90 ° just, and promptly the greatest irradiation direction and is an omnidirectional on horizontal plane.As seen, when element antenna was lined up uniform straight line array according to equidistant λ in vertical guide, the directional diagram of antenna array had maximum at horizontal plane, and is omnidirectional.
The antenna that the embodiment of the invention provides has the following advantages: the maximum direction of its E face directional diagram is on horizontal plane, and maximum lobe is not offset; Antenna gain is very high, and because antenna structure is very symmetrical, so its deviation in roundness is fine, and promptly the omni-directional of antenna is fine, and H face directional diagram is very round; Since adopted the form of printing PCB antenna, so cost is very low, high conformity, in light weight; The feeding classification of the series feed that the embodiment of the invention adopted, its circuit structure is very simple.
Now describe with specific embodiment: the antenna of present embodiment adopts the series feed of balance microstrip line to realize with the integral structure that the element antenna on plane is connected.
In this example, this WiMAX high-gain aerial is operated in 3.4GHz～3.6GHz.As Fig. 4 and shown in Figure 5, antenna comprises the thick PCB dielectric-slab 401 of 1mm, several element antennas 402, microstrip feed line 403 and via hole 404 (wherein, the via hole of antenna face be commonly referred to via hole (on), via hole at the antenna reverse side is commonly referred to via hole (descending)) etc. composition, wherein, Fig. 4 represents antenna face, and Fig. 5 represents the antenna back side.Consider that antenna gain requires and the restriction of bulk, adopted 3 element antennas here.Particularly: element antenna is a half-wave doublet, and different is that oscillator is the planographic structure, and in addition, two arms of oscillator lay respectively on positive and negative two faces of pcb board, are positioned at the upper arm that is called of antenna face, are positioned at the underarm that is called of antenna reverse side.Connect by microstrip feed line between a plurality of element antennas.Feed is to come feed by coaxial line, wherein, the inner core of coaxial line by the via hole (descending) of antenna reverse side pass through to antenna face via hole (on), inner core is welded to the position of the distributing point A of diagram antenna face, with the crust of coaxial line be welded to the distributing point B position of diagram antenna reverse side, will guarantee that like this element antenna upper arm is identical with the sense of current of element antenna underarm.
The length of antenna element antenna is mainly decided by its resonance frequency, but considering that the influence that intercouples between each unit in substrate dielectric constant, thickness and the array, the brachium of element antenna are got is slightly less than 1/4th of centre frequency corresponding wavelength; In addition, can play the effect of the broadening beamwidth of antenna by the width of suitable increase oscillator arms.The width of balance microstrip feed line is the pairing width of 50 ohm microstrip live widths, and length is mainly determined by the space D between element antenna.Space D between element antenna is got proper what a wavelength is in theory satisfied the requirement of array to each unit homophase feed, but actual 0.8 to 0.9 times of generally getting centre frequency institute corresponding wavelength.
During enforcement, in the emulation when 3.5GHz the gain of antenna can reach 6dB, actual measurement gain also can reach 5.7dB.The E ground roll lobe width of antenna is 23 degree, and the greatest irradiation direction is on horizontal plane, lobe does not take place upwarp or have a down dip; Because it is the complementary symmetrical structure at center with the microstrip feed line that the unit of array has adopted, so the H face directional diagram of antenna is very round, its deviation in roundness is less than 2dB, and omni-directional is fine.
The line array of the series feed that the embodiment of the invention adopted is a kind of more common row's battle array mode, though this antenna is operated in the 3.5GHz frequency range of WiMAX, but at terminal installations such as the TD-LTE that wireless access function is provided, TD-SCDMA, WCDMA, its mentality of designing can adopt method of the present invention to realize the design of external high-gain aerial, usage range is wide, and is simple.
Based on same inventive concept, the embodiment of the invention also provides a kind of antenna alignment method, comprising: a plurality of element antennas that antenna is comprised are lined up even straight line and are penetrated battle array.
As can be seen from the above description, the present invention has realized following technique effect:
In embodiments of the present invention, a plurality of element antennas that antenna is comprised are lined up even straight line and are penetrated battle array, can make the directional diagram of antenna array have maximum at horizontal plane, and be omnidirectional, improve the gain of antenna, and then improve antenna performance.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, carry out by calculation element thereby they can be stored in the storage device, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an antenna is characterized in that, comprises a plurality of element antennas, and described a plurality of element antenna is lined up even straight line and penetrated battle array.
2. antenna according to claim 1 is characterized in that, adopts the feeding classification of series feed between described a plurality of element antennas.
3. antenna according to claim 1 is characterized in that, described antenna is integrated on the printing pcb board with low section characteristic.
4. antenna according to claim 3 is characterized in that, described a plurality of element antennas are half-wave doublet, and described oscillator is the planographic structure, and two arms of described oscillator lay respectively on the tow sides of described pcb board.
5. antenna according to claim 1 is characterized in that, described a plurality of element antennas distribute on vertical guide and form uniform straight line array.
6. antenna according to claim 5 is characterized in that, described a plurality of element antennas are arranged by the equidistant wavelength of each element antenna at vertical guide.
7. according to each described antenna of claim 1 to 6, it is characterized in that, the brachium of each element antenna less than self the centre frequency corresponding wavelength 1/4th.
8. antenna according to claim 1 is characterized in that, when described a plurality of element antennas are lined up N unit evenly straight line are penetrated gust, according to described N unit evenly the straight line array factor of penetrating battle array determine the gain of described antenna, wherein, described array factor formula is as follows:
Ψ (δ)=ξ+kd cos δ wherein, ξ are initial between each element antenna
Phase difference, d are the spacing between each element antenna, and k is a slope coefficient.
9. antenna according to claim 8 is characterized in that, when=2m π, when m was arbitrary integer, the array factor of antenna had maximum.
10. an antenna alignment method is characterized in that, comprising: a plurality of element antennas that antenna is comprised are lined up even straight line and are penetrated battle array.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100056963A CN102110904A (en) | 2011-01-12 | 2011-01-12 | Antenna and antenna arranging method |
| PCT/CN2011/076479 WO2012094876A1 (en) | 2011-01-12 | 2011-06-28 | Antenna and antenna arrangement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100056963A CN102110904A (en) | 2011-01-12 | 2011-01-12 | Antenna and antenna arranging method |
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| CN102110904A true CN102110904A (en) | 2011-06-29 |
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| CN2011100056963A Pending CN102110904A (en) | 2011-01-12 | 2011-01-12 | Antenna and antenna arranging method |
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| CN (1) | CN102110904A (en) |
| WO (1) | WO2012094876A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522628A (en) * | 2011-12-09 | 2012-06-27 | 清华大学 | High gain bidirectional end-fire antenna array applied to mine and tunnel |
| CN104617397A (en) * | 2015-01-15 | 2015-05-13 | 哈尔滨工业大学 | Universal microstrip array antenna applicable to WLAN (Wireless Local Area Network) |
| CN104795630A (en) * | 2015-04-24 | 2015-07-22 | 普联技术有限公司 | Dual-band omnidirectional WIFI (wireless fidelity) antenna |
| CN105932415A (en) * | 2016-06-06 | 2016-09-07 | 佛山澳信科技有限公司 | Omnidirectional microstrip antenna |
| CN106058489A (en) * | 2016-06-24 | 2016-10-26 | 重庆大学 | Method for designing power tool and appliance management RFID (Radio Frequency Identification Device) ceramic antenna uniform linear array |
| CN106941210A (en) * | 2017-02-23 | 2017-07-11 | 广东通宇通讯股份有限公司 | Super-wide band high-gain omnidirectional antenna and its ultra wide band oscillator unit |
| WO2020133496A1 (en) * | 2018-12-29 | 2020-07-02 | 瑞声科技（南京）有限公司 | Packaged antenna module and electronic device |
| JP7098023B1 (en) | 2020-12-30 | 2022-07-08 | 耀登科技股▲ふん▼有限公司 | Tandem connection type antenna structure |
| US11394123B2 (en) * | 2020-01-10 | 2022-07-19 | Accton Technology Corporation | Microstrip collinear array |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522628A (en) * | 2011-12-09 | 2012-06-27 | 清华大学 | High gain bidirectional end-fire antenna array applied to mine and tunnel |
| CN102522628B (en) * | 2011-12-09 | 2014-05-14 | 清华大学 | High gain bidirectional end-fire antenna array applied to mine and tunnel |
| CN104617397A (en) * | 2015-01-15 | 2015-05-13 | 哈尔滨工业大学 | Universal microstrip array antenna applicable to WLAN (Wireless Local Area Network) |
| CN104617397B (en) * | 2015-01-15 | 2017-06-20 | 哈尔滨工业大学 | A kind of omnidirectional's micro-strip array antenna for being applied to WLAN |
| CN104795630A (en) * | 2015-04-24 | 2015-07-22 | 普联技术有限公司 | Dual-band omnidirectional WIFI (wireless fidelity) antenna |
| CN105932415A (en) * | 2016-06-06 | 2016-09-07 | 佛山澳信科技有限公司 | Omnidirectional microstrip antenna |
| CN106058489A (en) * | 2016-06-24 | 2016-10-26 | 重庆大学 | Method for designing power tool and appliance management RFID (Radio Frequency Identification Device) ceramic antenna uniform linear array |
| CN106941210A (en) * | 2017-02-23 | 2017-07-11 | 广东通宇通讯股份有限公司 | Super-wide band high-gain omnidirectional antenna and its ultra wide band oscillator unit |
| WO2020133496A1 (en) * | 2018-12-29 | 2020-07-02 | 瑞声科技（南京）有限公司 | Packaged antenna module and electronic device |
| US11394123B2 (en) * | 2020-01-10 | 2022-07-19 | Accton Technology Corporation | Microstrip collinear array |
| JP7098023B1 (en) | 2020-12-30 | 2022-07-08 | 耀登科技股▲ふん▼有限公司 | Tandem connection type antenna structure |
| JP2022106263A (en) * | 2020-12-30 | 2022-07-19 | 耀登科技股▲ふん▼有限公司 | Tandem connection type antenna structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012094876A1 (en) | 2012-07-19 |
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Application publication date: 20110629 |