CN108172978A - Dual-polarization radiating unit and antenna assembly - Google Patents
Dual-polarization radiating unit and antenna assembly Download PDFInfo
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- CN108172978A CN108172978A CN201711279475.9A CN201711279475A CN108172978A CN 108172978 A CN108172978 A CN 108172978A CN 201711279475 A CN201711279475 A CN 201711279475A CN 108172978 A CN108172978 A CN 108172978A
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
-
- 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
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to a kind of dual-polarization radiating units, are equipped with loading structure and couplant in the either side of radiating surface, loading structure includes four loading units one-to-one with four dipoles and four loading units are axisymmetricly set；Couplant includes four media units one-to-one with four dipoles and four media units are axisymmetricly set, media units are set between loading unit and dipole, and each loading unit and each media units are fixedly connected on each dipole and with each dipole triads into class microstrip line construction.Dual-polarization radiating unit in the application, by couplant and loading structure that insulation tuning is set on radiation arm, energy deflecting increases the resonance length of radiation arm, so as to effectively reduce the height of entire radiating element and bore, the band bandwidth of radiating element is greatly widened, so as to while compatible multiband, reduce the height and bore of entire radiating element.A kind of antenna assembly is also provided.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of dual-polarization radiating unit and antenna assembly.
Background technology
With the continuous development of the communications industry, the increase of mobile communications network standard, operator not only require existing 2G,
3G and 4G multiple network standards coexist, and in order to optimize allocation of resources, save site and antenna feeder resource, reduce property and coordinate hardly possible
Degree, reduces cost of investment, and the co-located system covolume antenna of co-sited is increasingly becoming the first choice of operator's networking.Therefore, polyphyly is altogether
Body antenna improves performance while minification becomes technical barrier.
According to aerial array principle, when the cell spacing of antenna is more than a wavelength, antenna will appear big secondary lobe, lead to day
Beta radiation hydraulic performance decline, therefore a wavelength is not to be exceeded in antenna spacing during design.In order to compatible 2G, 3G, 4G net simultaneously
The demand of all channel antenna of network frequency range, and meet the requirement for reducing size, it is low-and high-frequency nesting cloth using more technologies
Office.At present, low frequency radiating element on the market can not be met while compatible multiband and minimize, is low due to structure constraint
The design requirement of section.
Invention content
Based on this, it is necessary to can not meet miniaturization while compatible multiband, low cut open for traditional low frequency radiation
The problem of design requirement in face, provides a kind of small, low section dual-polarization radiating unit and antenna assembly.
Dual-polarization radiating unit, includes the dipole of two pairs of cross polarizations, and four dipoles set gradually and formed
One radiating surface is additionally provided with loading structure and couplant in the either side of the radiating surface, and the loading structure includes and four
A one-to-one four loading units of the dipole and four loading units are axisymmetricly set；
The couplant includes and four one-to-one four media units of dipole and four media
Unit is axisymmetricly set, and the media units are set between the loading unit and the dipole, each loading unit
It is fixedly connected on each dipole with each media units and with each dipole triads into class microstrip line construction.
Dual-polarization radiating unit in the application, by the couplant of insulation tuning and loading being set to tie in dipole
Structure, energy deflecting increase the resonance length of radiation arm, so as to effectively reduce the height of entire antenna assembly and bore, greatly open up
The wide band bandwidth of radiating element, so as to while compatible multiband, reduce the height and bore of entire radiating element,
And then meet and minimize, the design requirement of low section.
In a wherein embodiment, each media units are separately provided on each dipole；Each loading is single
Member is separately provided on each media units.
In a wherein embodiment, each dipole includes two unit arms, and the media units include only respectively
The first medium portion and second medium portion being erected on two unit arms, the loading unit include independently being set on institute
State first medium portion and the first loading unit and the second loading unit in the second medium portion.
In a wherein embodiment, four dipoles are respectively the first dipole, the second dipole, third dipole
With the 4th dipole, first dipole includes two first unit arms, and second dipole includes two second units
Arm, the third dipole include two third unit arms, and the 4th dipole includes two the 4th unit arms；Adjacent institute
State the first unit arm and second unit arm, the adjacent second unit arm and third unit arm, adjacent described
Third unit arm and the 4th unit arm and adjacent the 4th unit arm and the first unit arm are corresponding shared respectively
One loading unit and the media units.
In a wherein embodiment, each loading unit and each media units pass through insulated screw or insulation fastener
It is fixedly connected on each dipole.
In a wherein embodiment, the loading unit includes the horizontal addload unit that is connect with media units and along institute
State the lateral loading unit of the side bending extension of horizontal addload unit.
In a wherein embodiment, the angle between the horizontal addload unit and the lateral loading unit is 60~
180 degree.
In a wherein embodiment, the dielectric constant of the couplant is 1.5~10.
In a wherein embodiment, the dual-polarization radiating unit further includes pedestal and the connection pedestal and the idol
Extremely sub feed Balun, the feed Balun include the first connecting portion set gradually from the bottom to top, transition part and the second connection
Portion, the first connecting portion connect the pedestal, the corresponding dipole of second connecting portion connection, the transition part folding
It is curved to be connected between the first connecting portion and the second connecting portion.
In a wherein embodiment, the angle between plane where the first connecting portion and the pedestal is 35 degree~60
Degree；
Angle between plane where the second connecting portion and the pedestal is 60~90 degree.
Antenna assembly, including reflecting plate and at least one above-mentioned dual-polarization radiating unit.
Description of the drawings
Fig. 1 is the structure diagram of the dual-polarization radiating unit in one embodiment of the prior art；
Fig. 2 is the structure diagram of the dual-polarization radiating unit in another embodiment of the prior art；
Fig. 3 is the structure diagram of the dual-polarization radiating unit in an embodiment of the present invention；
Fig. 4 is the structure diagram at another visual angle of dual-polarization radiating unit shown in FIG. 1；
Fig. 5 is the loading structure of dual-polarization radiating unit shown in FIG. 1 and the exploded pictorial of couplant and other elements
Figure；
Fig. 6 is the structure diagram of the couplant of dual-polarization radiating unit shown in FIG. 1；
Fig. 7 is the structure diagram of the loading structure of dual-polarization radiating unit shown in FIG. 1；
Fig. 8 is the connection block diagram of the antenna assembly in an embodiment of the present invention；
Fig. 9 is the structure diagram of the antenna assembly in an embodiment of the present invention；
Figure 10 is the structure diagram of the antenna assembly in another embodiment of the present invention.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more saturating
It is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " including one or more phases
The arbitrary and all combination of the Listed Items of pass.
Before the dual-polarization radiating unit in the present invention is described in detail, low frequency antenna for base station is said first
It is bright, in order to which the technical solution of the dual-polarization radiating unit in the present invention is better understood.
With the gradually acceleration of forth generation mobile communications network construction, each operator is sought for can be backward compatible
2G the and 3G standards such as GSM800, GSM900, CDM2000, and the ultra wide band day of the 4G standards such as upward-compatible LTE700, LTE2600
Line also increasingly deepens the wideband demand of antenna for base station.
In existing mobile communications network forth generation process of construction, in order to save site, low frequency antenna for base station standard with
High frequency antenna for base station standard generally use Nested design, as shown in Figure 1, in a kind of existing technical solution, low frequency radiation
Unit includes the dipole 1,2,3 and 4 of two pairs of cross polarizations, is correspondingly connected with four baluns, the lower end of four baluns is connected to ring
On shape pedestal.This kind of low frequency radiating element can reduce low frequency radiating element to adjacent to a certain extent using round bore
The influence of high frequency unit, but when the high frequency of nesting expands to 4G or LTE2600 by 3G battle array will be organized to meet property requirement
When spacing reduces, the coupling between low-and high-frequency array is serious, to the electric property especially isolation and water of high frequency radiating element
Collimated beam of sound width causes large effect.
In existing another technical solution, as shown in Fig. 2, balun and cup dolly in this kind of low frequency radiating element
It is connected in arcuation, the inner space of radiating element can be occupied less to a certain extent, but due to height of the balun from radiating surface
Degree is still 0.3~0.5 operation wavelength, moreover, in order to reach effectively resonance length, radiation arm can only carry out bending part
Reason, increases the influence to being nested in the high frequency radiating element inside the low frequency radiating element in this way.Particularly it is easy to cause water
Collimated beam of sound width is distorted, and this kind of antenna for base station size is bigger than normal, is unfavorable for miniaturization, the requirement of low section.
Accordingly, it is desirable to provide a kind of dual-polarization radiating unit, to reduce the influence between radiating element to the greatest extent, can be compatible with
While 2G, 3G and 4G multiband, satisfaction minimizes, the design requirement of low section.
As shown in Figures 3 and 4, the dual-polarization radiating unit 10 in one embodiment of the invention, for forming mobile communication
Antenna for base station, the dual-polarization radiating unit 10 include the dipole 12 of two pairs of cross polarizations, and four dipoles 12 are set gradually simultaneously
Form a radiating surface.
The dual-polarization radiating unit 10 further includes pedestal 14 and feed Balun 16, and a dipole 12 is an oscillator,
Two oscillators are a pair, and two pairs of a period of time are symmetrically oppositely arranged, and are arranged in the form of cross polarization.Feed Balun 16 is radially
Pedestal 14 is axisymmetrically connected to, each dipole 12 is connected with a pair of of feed Balun 16, to feed and provide for dipole 12
Support, pedestal 14 with reflecting plate for being fixedly connected, so as to fulfill the assembling of antenna for base station, to emit or receive signal of communication.
Loading structure (figure is not marked) and couplant (figure is not marked) are additionally provided in the either side of radiating surface, loading structure includes
It is axisymmetricly set with four dipoles, 12 one-to-one four loading units 18 and four loading units 18.Couplant packet
It includes and is axisymmetricly set with four dipoles, 12 one-to-one four media units 19 and four media units 19, media units
19 are set between loading unit 18 and dipole 12, and each loading unit 18 and each media units 19 are fixedly connected on each dipole 12
Above and with each dipole 12 form class microstrip line construction.
In this way, compared with prior art, the dual-polarization radiating unit 10 in the application is insulated by being set on dipole 12
The loading structure and couplant of tuning, energy deflecting increases the resonance length of dipole 12, so as to effectively reduce entire radiation
The height and bore of unit, have greatly widened the band bandwidth of dipole 12.In addition, each loading unit 18 and each media units
19 with each dipole triads into class microstrip line construction, the radiance of flexibly optimization antenna is easy to implement, to eliminate radiation boundary not
The effect of symmetry is adversely affected caused by antenna complete machine electrical performance indexes and radiance index.
Specific in embodiment, which works with respect to the height of 14 place plane of pedestal at 0.1~0.3
Wavelength, then the height of the 14 place plane of opposite pedestal of the dual-polarization radiating unit 10 is orthogonal in 0.1~0.3 operation wavelength
Spacing in polarized two electrode couples 12 between two opposite dipoles 12 is 0.2~0.5 wavelength.It in this way, can basis
The shape and size of high frequency radiating element and residing radiation boundary condition flexibly optimize the radiating element size and structure of the present invention
To realize the requirement of the miniaturization low section of antenna.Radiating element compared to the same type low frequency radiating element invention can accomplish size
Smaller, compact-sized, circuitry specifications and radiance index can flexibly be optimized to optimal.
Further, each media units 19 are separately provided on each dipole 12；Each loading unit 18 is in each media units
It is separately provided on 19.Specifically, dipole 12 includes two unit arms that one end is connected to corresponding feed Balun 16
122, media units 19 may include the first medium portion (not shown) and second medium that are independently set on two unit arms 122
Portion's (not shown), loading unit 18 include the first loading unit (figure being independently set in first medium portion and second medium portion
Do not show) and the second loading unit (not shown).
It is understood that the structure of dipole 12 includes but not limited to above-mentioned embodiment, therefore loading unit 18
It can be changed with the arrangement form of media units 19 according to the variation of dipole 12, can reach and be separately provided, axisymmetric purpose
.
Particularly, each couplant has a preset dielectric constant, can be directed to different frequency range and different performance requirement
Antenna for base station when, by couplant of the setting with differing dielectric constant, and adjust the shape of couplant, size, just
The radiance of antenna can flexibly be optimized, to eliminate radiation boundary asymmetry to antenna complete machine electrical performance indexes and radiance
Adverse effect caused by index, especially in terms of the horizontal plane beam angle and voltage standing wave ratio of antenna for base station.Specifically, should
The dielectric constant range of couplant is 1.5~10.While so, it is possible compatible 2G, 3G and 4G multiband, meet small-sized
Change, the design requirement of low section.
In one embodiment, referring to Fig. 4, four dipoles 12 are respectively the first dipole 12a, the second dipole
12b, third dipole 12c and the 4th dipole 12d, the first dipole 12a include two first unit arm 122a, the second dipole
Sub- 12b includes two second unit arm 122b, and third dipole 12c includes two third unit arms 122c, the 4th dipole 12d
Including two the 4th unit arm 122d.Adjacent first unit arm 122a and second unit arm 122b, adjacent second unit arm
122b and third unit arm 122c, adjacent third unit arm 122c and the 4th unit arm 122d and the 4th adjacent unit arm
122d and first unit arm 122a is corresponding respectively to share a loading unit 18 and a media units 19.
Fig. 5, Fig. 6 and Fig. 7 are please referred to, further, pedestal 14 is annular in shape, and each dipole 12 is mutually parallel including a pair
Feed Balun 16 and the plane parallel with 14 place plane of pedestal in angled extension a pair of of unit arm 122, four pairs feed
16 lower end of balun is connected to ring-shaped base 14, and is radially extended to cross polarization on the basis of the center of ring-shaped base 14.
One end of four pairs of unit arms 122 is connected to the upper end of corresponding feed Balun 16, and is put down in opposite 14 place plane of ring-shaped base
Extend in capable same plane, so as to construct the structure to form an encirclement shape, carry out forming radiating surface.
The media units 19 are set to the upper surface of the adjacent two unit arm 122 in two adjacent dipoles 12,
Side i.e. far from ring-shaped base 14, loading unit 18 are set to the upper surface of media units 19, i.e. one far from unit arm 122
Side.In this way, forming class microstrip line construction, the radiance of flexibly optimization antenna is further easy to implement, to eliminate radiating side
The effect of boundary's asymmetry is adversely affected caused by antenna complete machine electrical performance indexes and radiance index.
It should be understood that in the unit arm 122 for needing equal length originally come when carrying out signal radiation, as a result of
Couplant and loading structure, then the physical length of unit arm 122 can shorten to a certain extent, so as to reduce entire dipole
The height and bore of son 12, and then meet and minimize, the design requirement of low section.
It is to be further understood that the bandwidth of antenna is related with impedance, in order to reach enough bandwidth, generally reactance is required to get over
It is small better in addition for the ease of matching, it is desirable to the reactance of dipole 12 is zero.It will be adjacent using couplant and loading structure
Two unit arms 122 connect, and the imaginary part (reactance) that can make impedance simultaneously is slack-off with the growth of frequency, so as to ensure that idol
Extremely son 12 has wider bandwidth.
Further, the angle between two unit arms 122 of each dipole 12 is 90~180 degree.Specifically, the list
First 122 one end of arm is connected to the upper end of corresponding feed Balun 16, and in parallel same of opposite 14 place plane of ring-shaped base
Extend in plane, enclose and set to form a centrosymmetric quadrangle.Accordingly, media units 19 are flat where opposite ring-shaped base 14
Extend in the same plane in face, also enclose and set to form a centrosymmetric quadrangle.That is, in two adjacent dipoles 12
One end is opposite each other for two adjacent unit arms 122, and 19 lengthwise of media units is connected to the upper table of two aforementioned unit arms 122
Face.
It is appreciated that the shape of the unit arm 122, size and the shape that is enclosed can determines according to actual conditions,
This is not construed as limiting, accordingly, the shape of the media units 19, the shape of size and loading unit 18, size also adaptability
Adjustment can realize the radiance of flexibly optimization antenna, to eliminate radiation boundary asymmetry to antenna complete machine electrical performance indexes
With the purpose adversely affected caused by radiance index.
It should be noted that since pedestal 14 is fixed on metallic reflection plate, 14 place plane of pedestal refers to metallic reflection plate
Surface.
In one embodiment, each loading unit 18 and each media units 19 are fixed and are connected by insulated screw 11 or insulation fastener
It is connected on each dipole 12.Further, referring to Fig. 5, media units 19 be set to it is adjacent in two adjacent dipoles 12
Two sides of the unit arm 122 far from pedestal 14, loading unit 18 is set to one of media units 19 far from unit arm 122
Side.Insulated screw 11 is arranged in loading unit 18, media units 19 and corresponding unit arm 122, so that loading unit 18, medium
19 confrontation unit arm 122 of unit is fixed.Specifically, several peaces are offered on unit arm 122, loading unit 18 and media units 19
Hole is filled, which is integrated unit arm 122, loading unit 18 and 19 riveted of media units by the mounting hole.
In this way, unit arm 122, couplant and loading structure form class microstrip line construction, it is further easy to implement spirit
The optimization electrical performance indexes of antenna living and radiance index.
In one embodiment, also referring to Fig. 7, loading unit 18 includes the horizontal addload list being connect with media units 19
Member 182 and and along horizontal addload unit 182 side bending extension lateral loading unit 184.Further, which adds
Carrier unit 182 and the upper surface of horizontally disposed media units 19 fit, and lateral loading unit 184 is approximately towards 14 institute of pedestal
Extend in plane.
In this way, by setting horizontal addload unit 182 and lateral loading unit 184, can effectively widen humorous on dipole
Shake current path, effectively improves the frequency bandwidth of dual-polarization radiating unit 10, while reduces dual-polarization radiating unit 10
Bore.
It is appreciated that in the present embodiment, the lateral loading unit 184 is perpendicular to the horizontal addload unit 182, certainly,
In some other embodiment, which can also be not orthogonal to horizontal addload unit 182, be not limited thereto.
Although present applicant is not intended to be bound by theory, present applicant it has been investigated that, as preferable reality
Mode is applied, the angle between the horizontal addload unit 182 and lateral loading unit 184 can make double in the range of 60~180 degree
Ultra-wideband antenna 10 has preferable performance.
It should be understood that current low frequency radiating element electrode couple by the way of couple feed is fed, hold
The current imbalance on 122 both sides of unit arm of single dipole is easily led to, so as to influence the side of entire dual-polarization radiating unit 10
Xiang Tu, and had an impact to being embedded at high frequency radiating element 60 therein.Using horizontal addload unit 182 and lateral loading unit
184 setting is effectively widening resonance current path on dipole, under the premise of improving frequency bandwidth, is also reducing electricity
The uneven influence to high frequency radiating element 60 of stream improves the overall performance of antenna.
In one embodiment, referring to Fig. 5, feed Balun 16 includes the first connecting portion set gradually from the bottom to top
162nd, transition part 164 and second connecting portion 166, first connecting portion 162 are connected to pedestal 14, and second connecting portion 166 is connected to phase
The dipole 12 answered, 164 bending of transition part are connected between first connecting portion 162 and second connecting portion 166.Further, should
Feed Balun 16 is in strip, and the first connecting portion 162, transition part 164 and second connecting portion 166 are integrally formed, first connecting portion
162 opposed annular pedestal, 14 place plane tilts extension at an angle, is put down where 166 opposed annular pedestal of second connecting portion 14
Face tilts extension, is connected between first connecting portion 162 and second connecting portion 166 to 164 gentle transition of transition part.Specifically,
The cross section contour of the plane along longitudinal direction of transition part 164 is arc-shaped.
Specific in embodiment, the angle between 14 place plane of first connecting portion 162 and pedestal is 35 degree~60 degree,
Angle between 14 place plane of second connecting portion 166 and pedestal is 60~90 degree.That is, feed Balun 16 oneself and unit
The junction of arm 122 to the central axes of the nested region formed to dual-polarization radiating unit 10 with the junction of annular base 14
Segmented convergence is drawn close.
In this way, it is compact-sized, it is easy to process, the space in radiating element is saved, it is right convenient for high frequency radiating element nesting
It reduces the height of radiating element, meet small-bore, low section design requirement with preferable effect.
It may also be noted that feed Balun 16 uses three stage structure, and transition part 164 is set in arcuation, is being realized
Reduce radiating element height, convenient for high frequency radiating element nesting under the premise of, also it is opposite zoomed out low frequency dipole 12 with it is adjacent
The distance between high frequency radiating element 60, reduce influence of the low frequency dipole 12 to high frequency radiating element 60, so as to further
Ground improves the performance of antenna.
In one embodiment, the side of feed Balun 16 opposite in opposite dipole 12 away from one another is formed wired
Slot, in order to 13 cabling of coaxial cable.Further, the outer conductor of the coaxial cable 13 is welded in two phases in dipole 12
Mutually parallel one of feed Balun 16, inner wire are welded in other in which feed Balun 16.In this way, convenient for cabling, letter
Structure is changed.
As shown in figure 8, based on above-mentioned dual-polarization radiating unit 10, the present invention also provides a kind of antenna assemblies 100.
The antenna assembly 100 include any of the above-described embodiment in dual-polarization radiating unit 10, feeding network 30, for
The signal input port 40 of base station connection.The feeding network 30 is connected by signal input port 40 with dual-polarization radiating unit 10
It connects, receives the signal from base station 50, and dual-polarization radiating unit 10 is fed for passing through signal input port 40, this is bipolar
Change radiating element 10 for aforementioned signal radiation to be gone out.
In a specific embodiment, referring to Fig. 9, the antenna assembly 100 includes reflecting plate 20 and at least one
Above-mentioned dual-polarization radiating unit 10, at least one dual-polarization radiating unit 10 are installed in reflecting plate 20.It is at least one bipolar
Change 10 linear array of radiating element and carry out parallelly feeding on the reflecting plate 20 of metal, which is single-frequency wideband battle array
Array antenna.
In another embodiment, referring to Fig. 10, the antenna assembly 100 further includes high frequency radiating element 60,
The dual-polarization radiating unit 10 forms a nested region, multiple high frequencies of arranging on the arrangement axis of the dual-polarization radiating unit 10
Radiating element 60.Wherein, which uses as low frequency radiating element, and the dual-polarization radiating unit 10 is embedded
Cover at least one high frequency radiating element 60.
It is appreciated that the arrangement mode of the high frequency radiating element 60 is not limited to structure type as shown in Figure 10.
It is appreciated that the application of the dual-polarization radiating unit 10 is not limited to array antenna, therefore the dual polarization in the present invention
Radiating element 10 can be applied in the well-known antenna of the other application dual-polarization radiating unit 10 outside array antenna.
Based on above-mentioned antenna assembly 100, the present invention also provides a kind of base station system, which includes above-mentioned day
Line apparatus 100.
Dual-polarization radiating unit 10 and antenna assembly 100 in the application, have the following advantages compared with prior art：
1) by setting the loading unit 18 and media units 19 of insulation tuning on unit arm 122, energy deflecting increases even
The extremely resonance length of son 12, so as to effectively reduce the height of entire radiating element and bore, has greatly widened dipole 12
Band bandwidth；
2) when can be directed to the antenna for base station that different frequency range and different performance require, by setting with differing dielectric constant
Media units 19, and the shape of media units 19, size are adjusted, it can flexibly optimize the radiance of antenna, to eliminate radiation
Boundary asymmetry is adversely affected caused by antenna complete machine electrical performance indexes and radiance index；
3) unit arm 122, loading unit 18 and media units 19 form class microstrip line construction, are easy to implement flexibly optimization day
The electrical performance indexes of line and radiance index；
4) by setting horizontal addload unit 182 and lateral loading unit 184, resonance electricity on dipole can effectively be widened
Flow path, effectively improves the frequency bandwidth of dual-polarization radiating unit 10, while reduces the bore of dual-polarization radiating unit 10.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (11)
1. dual-polarization radiating unit, include the dipole of two pairs of cross polarizations, four dipoles set gradually and form one
A radiating surface, which is characterized in that be additionally provided with loading structure and couplant, the loading structure in the either side of the radiating surface
Including axisymmetricly being set with four one-to-one four loading units of dipole and four loading units；
The couplant includes and four one-to-one four media units of dipole and four media units
It axisymmetricly sets, the media units are set between the loading unit and the dipole, each loading unit and each
The media units are fixedly connected on each dipole and with each dipole triads into class microstrip line construction.
2. dual-polarization radiating unit as described in claim 1, which is characterized in that each media units are in each dipole
On be separately provided；Each loading unit is separately provided on each media units.
3. dual-polarization radiating unit as claimed in claim 2, which is characterized in that each dipole includes two units
Arm, the media units include independently being set on first medium portion and second medium portion on two unit arms, described
Loading unit includes independently being set on the first medium portion and the first loading unit and second in the second medium portion adds
Load portion.
4. dual-polarization radiating unit as described in claim 1, which is characterized in that four dipoles are respectively the first dipole
Son, the second dipole, third dipole and the 4th dipole, first dipole include two first unit arms, and described the
Two dipoles include two second unit arms, and the third dipole includes two third unit arms, the 4th dipole attached bag
Include two the 4th unit arms；The adjacent first unit arm and the second unit arm, the adjacent second unit arm and
The third unit arm, the adjacent third unit arm and the 4th unit arm and adjacent the 4th unit arm and institute
State first unit arm a corresponding shared loading unit and the media units respectively.
5. dual-polarization radiating unit as described in claim 1, which is characterized in that each loading unit and each medium list
Member is fixedly connected on by insulated screw or insulation fastener on each dipole.
6. dual-polarization radiating unit as described in claim 1, which is characterized in that the loading unit includes connecting with media units
The horizontal addload unit connect and the lateral loading unit of the side bending extension along the horizontal addload unit.
7. dual-polarization radiating unit according to claim 6, which is characterized in that the horizontal addload unit with it is described lateral
Angle between loading unit is 60~180 degree.
8. dual-polarization radiating unit as described in claim 1, which is characterized in that the dielectric constant of the couplant is 1.5
~10.
9. according to claim 1~8 any one of them dual-polarization radiating unit, which is characterized in that the dual polarised radiation list
Member further includes the feed Balun of pedestal and the connection pedestal and the dipole, the feed Balun include from the bottom to top according to
First connecting portion, transition part and the second connecting portion of secondary setting, the first connecting portion connect the pedestal, second connection
The corresponding dipole of portion's connection, the transition part bending be connected to the first connecting portion and the second connecting portion it
Between.
10. dual-polarization radiating unit according to claim 9, which is characterized in that the first connecting portion and the pedestal
Angle between the plane of place is 35 degree~60 degree；
Angle between plane where the second connecting portion and the pedestal is 60~90 degree.
11. antenna assembly, which is characterized in that double including reflecting plate and at least one such as claim 1~10 any one of them
Ultra-wideband antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711279475.9A CN108172978A (en) | 2017-12-06 | 2017-12-06 | Dual-polarization radiating unit and antenna assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279475.9A CN108172978A (en) | 2017-12-06 | 2017-12-06 | Dual-polarization radiating unit and antenna assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108172978A true CN108172978A (en) | 2018-06-15 |
Family
ID=62525361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711279475.9A Pending CN108172978A (en) | 2017-12-06 | 2017-12-06 | Dual-polarization radiating unit and antenna assembly |
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| CN112582774A (en) * | 2019-09-30 | 2021-03-30 | 京信通信技术(广州)有限公司 | Antenna, radiating element thereof, balun structure of radiating element and manufacturing method |
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