CN107317100A - A kind of dual polarization antenna radiation unit and antenna assembly - Google Patents
A kind of dual polarization antenna radiation unit and antenna assembly Download PDFInfo
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- CN107317100A CN107317100A CN201710360876.0A CN201710360876A CN107317100A CN 107317100 A CN107317100 A CN 107317100A CN 201710360876 A CN201710360876 A CN 201710360876A CN 107317100 A CN107317100 A CN 107317100A
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- arm
- resonance
- resonance arm
- coaxial cable
- balun
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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
-
- 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
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/106—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using two or more intersecting plane surfaces, e.g. corner reflector antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of dual polarization antenna radiation unit, it includes：Radiating doublet main body, including a dielectric-slab, the resonance oscillator for two cross polarizations being arranged on the dielectric-slab and two orthogonal coupled oscillators being arranged on the dielectric-slab, the intersection point of described two resonance oscillators is overlapped with the intersection point of described two coupled oscillators, and described two resonance oscillators and described two coupled oscillators are coplanar and are arranged at intervals each other；And the feed Balun below the dielectric-slab, for supporting the radiating doublet main body and being balanced feed to described two resonance oscillators.The invention also discloses a kind of antenna assembly.The present invention can reduce the size of radiating element, therefore the volume of the dual polarization antenna radiation unit can be caused to diminish, so as to install the greater number of dual polarization antenna radiation unit in the antenna assembly, and then the antenna performance of the antenna assembly can be improved.
Description
Technical field
The present invention relates to antenna technical field, more particularly to a kind of dual polarization antenna radiation unit and antenna assembly.
Background technology
With the rise of mobile communication 4G networkings, mobile communication will occur what the second generation coexisted to fourth-generation system
Situation.The sharply increasing of base station number, the diminution of cellular cell radius, antenna resources scarcity, new site addressing difficulty etc. are asked
Topic increasingly shows, in addition, and national policy encourages Private Capital to enter Telecom Service Market, foundes steel tower company and is responsible for telecommunications
The construction and maintenance of infrastructure, this proposes new demand in terms of equipment interoperability, site planning.In order to save base station
Site installation resource, reduce network construction cost, avoid overlapping investment and the soil energy consumed excessively, to mobile communication
Base station system proposes higher requirement, if solution can be while compatible a variety of communication standards, cover a variety of movements and lead to
Believe frequency range, will undoubtedly greatly promote the market competitiveness.Nowadays, small-sized multi-frequency antenna is the main development side of antenna for base station
To.
Dual polarization multifrequency base station array antenna as small-sized multi-frequency antenna antenna technology of the one of which compared with main flow, its
It is widely used.But the radiating element of existing dual polarization multifrequency base station array antenna is generally metal casting knot
Structure, i.e. radiating element is formed by the element combination of multiple metallic monolith structures, such that the volume of radiating element compared with
Greatly；And the quantity of the oscillator of existing radiating element is generally two (i.e. two pairs oscillator arms), in order to ensure the bandwidth of antenna,
The size of oscillator needs larger (generally half of operation wavelength), so can also make it that the volume of radiating element is larger.Due to double
The inner space of polarization multifrequency base station array antenna is limited, when the radiating element for metal casting structure is applied to dual polarization multifrequency
When in base station array antenna, closely the radiance of oscillator is caused to be disliked very much in order to avoid what the oscillator of radiating element was leaned on each other
Change, the quantity of the radiating element set in dual polarization multifrequency base station array antenna will be than relatively limited, so that dual polarization can be restricted
The antenna performance (such as multifrequency performance) of multifrequency base station array antenna.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of dual polarization antenna radiation unit, its small volume.This hair
Bright purpose, which also resides in a kind of application of offer, the antenna assembly of the dual polarization antenna radiation unit, and that is installed in it is described double
The quantity of poliarizing antenna radiating element is more, so as to improve the antenna performance of the antenna assembly.
To achieve these goals, the embodiments of the invention provide a kind of dual polarization antenna radiation unit, it includes：
Radiating doublet main body, including a dielectric-slab, the resonance oscillator for two cross polarizations being arranged on the dielectric-slab
And two orthogonal coupled oscillators on the dielectric-slab are arranged on, the intersection point of described two resonance oscillators is coupled with described two
The intersection point of oscillator is overlapped, and described two resonance oscillators and described two coupled oscillators are coplanar and are arranged at intervals each other；And
Feed Balun below the dielectric-slab, for supporting the radiating doublet main body and to described two resonance
Oscillator is balanced feed.
In embodiments of the present invention, by the way that described two resonance oscillators are arranged on the dielectric-slab with described two,
The volume of oscillator can so be reduced (relative to the oscillator of existing metallic monolith structure)；Simultaneously because described two orthopoles
The resonance oscillator of change and described two orthogonal coupled oscillators are coplanar and are arranged at intervals (i.e. described two resonance oscillators each other
There is gap each other with described two coupled oscillators), so when the feed Balun is carried out to described two resonance oscillators
During feed, described two resonance oscillators can form resonance, and the resonance oscillator can also be by between the coupled oscillator
Gap and to the coupled oscillator carry out coupling excitation so that the coupled oscillator formation one new mode of resonance,
Therefore by the resonance of both resonance oscillator and coupled oscillator, the bandwidth of antenna can be increased, therefore day can met
Reduce the size of oscillator in the case of the bandwidth of line.From upper analysis, because the embodiment of the present invention can reduce the chi of oscillator
It is very little, therefore the volume of the dual polarization antenna radiation unit can be caused to diminish.
Preferably, one of them described resonance oscillator includes the first resonance arm and the second resonance arm, another described resonance
Oscillator include the 3rd resonance arm and the 4th resonance arm, first resonance arm, the 3rd resonance arm, second resonance arm with
4th resonance arm is coplanar and is arranged successively setting around same central point, first resonance arm and second resonance
Arm is symmetrical, and the 3rd resonance arm and the 4th resonance arm are symmetrical.
Preferably, one of them described coupled oscillator includes the first coupling arm and the second coupling arm, another described coupling
Oscillator include the 3rd coupling arm and the 4th coupling arm, first coupling arm, the 3rd coupling arm, second coupling arm with
4th coupling arm is coplanar and is arranged successively setting around the central point, and first coupling arm is coupled with described second
Arm is symmetrical, and the 3rd coupling arm and the 4th coupling arm are symmetrical；
First coupling arm be located between first resonance arm and the 3rd resonance arm, and with first resonance
Arm and the 3rd resonance arm have gap respectively；3rd coupling arm is located at the 3rd resonance arm and second resonance
Between arm, and there is gap respectively with the 3rd resonance arm and second resonance arm；Second coupling arm is located at described
Between 3rd resonance arm and the 4th resonance arm, and between having respectively with the 3rd resonance arm and the 4th resonance arm
Gap；4th coupling arm be located between the 4th resonance arm and first resonance arm, and with the 4th resonance arm and
First resonance arm has gap respectively.
Preferably, first resonance arm, second resonance arm, the 3rd resonance arm and the 4th resonance arm are equal
For U-like shape structure；Or,
First resonance arm, second resonance arm, the 3rd resonance arm and the 4th resonance arm are bulk
Structure；Or,
First resonance arm, second resonance arm, the 3rd resonance arm and the 4th resonance arm are class E shapes
Structure.
Preferably, first coupling arm, second coupling arm, the 3rd coupling arm and the 4th coupling arm are equal
The corner block being connected with long strip block and with the long strip block, the long strip block is close to the central point, and the corner block is remote
From the central point；Or,
First coupling arm, second coupling arm, the 3rd coupling arm and the 4th coupling arm are strip
Block structure.
Preferably, the dielectric-slab is printed circuit board (PCB), and described two resonance oscillators print with described two coupled oscillators
System is on the same face of the printed circuit board (PCB).
Preferably, the feed Balun includes feed base and is located between the dielectric-slab and the feed base
The first coaxial cable, the second coaxial cable, the first balun pipe and the second balun pipe；Wherein,
First coaxial cable is used to shake to the resonance that first resonance arm is constituted with second resonance arm
Son is fed, and first coaxial cable is used to balance first resonance arm and described second with the first balun pipe
The feed current of resonance arm；Second coaxial cable is used for the institute constituted to the 3rd resonance arm and the 4th resonance arm
Resonance oscillator is stated to be fed, and second coaxial cable and the second balun pipe be used to balancing the 3rd resonance arm with
The feed current of 4th resonance arm；
The top of first coaxial cable is fixed with first resonance arm, and the top of the first balun pipe is fixed with
Second resonance arm；The top of second coaxial cable is fixed with the 3rd resonance arm, the top of the second balun pipe
End is fixed with the 4th resonance arm；The bottom of first coaxial cable, the bottom of second coaxial cable, described first
The bottom of balun pipe and the bottom of the second balun pipe are both secured on the feed base.
Preferably, the feed Balun also includes the first feed body and the second feed body, and the feed base includes print
It is formed with the printed circuit board (PCB) of the first feed circuit and the second feed circuit；Wherein,
The inner wire of the top end of first coaxial cable is electrically connected with first resonance arm, the first balun pipe
Top electrically connected with second resonance arm；The bottom of first coaxial cable and the bottom of the first balun pipe are welded
Connect on the printed circuit board, and the bottom end of first coaxial cable outer conductor by first feed circuit with
The first balun pipe feed connection；
The inner wire of the top end of second coaxial cable is electrically connected with the 3rd resonance arm, the second balun pipe
Top electrically connected with the 4th resonance arm；The bottom of second coaxial cable and the bottom of the second balun pipe are welded
Connect on the printed circuit board, and the bottom end of second coaxial cable outer conductor by second feed circuit with
The second balun pipe feed connection；
It is described first feed body one end through first resonance arm and with the top end of first coaxial cable
Inner wire is connected, and the other end of the first feed body connects through second resonance arm and with the top of the first balun pipe
Connect；It is described second feed body one end through the 3rd resonance arm and with the inner wire of the top end of second coaxial cable
Connection, the other end of the second feed body is connected through the 4th resonance arm and with the top of the second balun pipe.
Preferably, the characteristic impedance of first coaxial cable and second coaxial cable is 50 ohm；Described
One coaxial cable, second coaxial cable, the length of the first balun pipe and the second balun pipe are a quarter
Operation wavelength.
The embodiment of the present invention additionally provides a kind of antenna assembly, and it includes reflecting plate and at least one is as described above double
Poliarizing antenna radiating element；At least one described dual polarization antenna radiation unit is on the reflecting plate.
The antenna assembly provided in an embodiment of the present invention, because application has the above-mentioned dual polarization antenna radiation of small volume
Unit, therefore relative to prior art, the greater number of dual polarization antenna radiation can be installed in the antenna assembly
Unit, so as to improve the antenna performance (such as multifrequency performance) of the antenna assembly.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, the required accompanying drawing used in embodiment will be made below
Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of dual polarization antenna radiation unit provided in an embodiment of the present invention；
Fig. 2 is a kind of top view of dual polarization antenna radiation unit provided in an embodiment of the present invention；
Fig. 3 is a kind of side view of dual polarization antenna radiation unit provided in an embodiment of the present invention；
Fig. 4 is the top view of another embodiment of the dual polarization antenna radiation unit that the present invention is provided；
Fig. 5 is the top view of another embodiment of the dual polarization antenna radiation unit that the present invention is provided；
Fig. 6 is that the dual polarization antenna radiation unit that provides of the present invention is operated in the standing-wave ratios of 780MHz-980MHz frequency ranges and imitated
True curve；
Fig. 7 is the isolation S21 songs that the dual polarization antenna radiation unit that the present invention is provided is operated in 780-980MHz frequency ranges
Line；
Fig. 8 is the horizontal plane half-power that the dual polarization antenna radiation unit that the present invention is provided is operated in 780-960MHz frequency ranges
Beam angle simulation curve；
Fig. 9 is the gain emulation song that the dual polarization antenna radiation unit that the present invention is provided is operated in 780-960MHz frequency ranges
Line.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 to Fig. 5 is referred to, the embodiments of the invention provide a kind of dual polarization antenna radiation unit, it includes radiation and shaken
Sub- main body 1 and feed Balun 2；The radiating doublet main body 1 includes a dielectric-slab 10, two be arranged on the dielectric-slab 10
The resonance oscillator 11 of cross polarization and two orthogonal coupled oscillators 12 being arranged on the dielectric-slab 10, described two resonance
The intersection point of oscillator 11 is overlapped with the intersection point of described two coupled oscillators 12, and described two resonance oscillators 11 are shaken with described two couple
Son 12 is coplanar and is arranged at intervals each other；The feed Balun 2 is used located at the lower section of dielectric-slab 10, the feed Balun 2
In supporting the radiating doublet main body 1, and the feed Balun 2 is additionally operable to be balanced feed to described two resonance oscillators 11
(i.e. described feed Balun 2 can be fed to described two resonance oscillators 11 and can balance described two resonance oscillators 11
Feed current), to cause described two resonance oscillators 11 formation resonance.Wherein, when described two resonance oscillators 11 form humorous
When shaking, described two resonance oscillators 11 can also be coupled by the gap between described two coupled oscillators 12 to described two
Oscillator 12 carries out coupling excitation, so that the one new mode of resonance of formation of described two coupled oscillators 12, therefore pass through institute
Resonance oscillator 11 and the combination of the two resonance of the coupled oscillator 12 are stated, the bandwidth of antenna can be increased.Need explanation
It is that mode can even be pasted etc. by printing, human weld and described two resonance oscillators 11 are shaken with described two couple
Son 12 is arranged on the dielectric-slab 10, is not specifically limited herein.
Specifically, Fig. 1, Fig. 2, Fig. 4 and Fig. 5 are referred to, one of them described resonance oscillator 11 includes the first resonance arm 111
And with symmetrical second resonance arm 112 of first resonance arm 111, another described resonance oscillator 11 include the 3rd resonance arm
113 and with symmetrical 4th resonance arm 114 of the 3rd resonance arm 113, in addition, one of them described coupled oscillator 12 includes the
One coupling arm 121 and with symmetrical second coupling arm 122 of first coupling arm 121, another described coupled oscillator 12 includes
3rd coupling arm 123 and with symmetrical 4th coupling arm 124 of the 3rd coupling arm 123；First resonance arm 111,
It is 3rd resonance arm 113, second resonance arm 112, the 4th resonance arm 114, first coupling arm 121, described
This is coplanar for 3rd coupling arm 123, second coupling arm 122 and the 4th coupling arm 124；Wherein, described first is humorous
111, the 3rd resonance arm 113, second resonance arm 112 and the 4th resonance arm 114 raise one's arm around same center
Arrangement sets and (set clockwise around the central point) point successively, first coupling arm 121, the 3rd coupling arm
123rd, second coupling arm 122 arranges setting (i.e. around institute successively with the 4th coupling arm 124 around the central point
State central point to set clockwise)；First coupling arm 121 is located at first resonance arm 111 and the 3rd resonance arm 113
Between, and there is gap respectively with first resonance arm 111 and the 3rd resonance arm 113；3rd coupling arm 123
Between the 3rd resonance arm 113 and second resonance arm 112, and with the 3rd resonance arm 113 and described second humorous
112 are raised one's arm respectively with gap；Second coupling arm 122 is located at the 3rd resonance arm 113 and the 4th resonance arm 114
Between, and there is gap respectively with the 3rd resonance arm 113 and the 4th resonance arm 114；4th coupling arm 124
Between the 4th resonance arm 114 and first resonance arm 111, and with the 4th resonance arm 114 and described first humorous
111 are raised one's arm respectively with gap.In other words, first resonance arm 111, the 3rd resonance arm 113, described second
Resonance arm 112 is formed as decussate texture, first coupling arm 121, the 3rd coupling with the 4th resonance arm 114 4
Close arm 123, second coupling arm 122 and be again formed as decussate texture with the 4th coupling arm 124, and this is formed as
Class M shape structure.
Wherein, when 2 pairs of feed Balun, first resonance arm 111 and second resonance arm 112 are balanced feedback
Electricity and when being balanced feed to the 3rd resonance arm 113 and second resonance arm 112, this four resonance arms can be formed
Resonance (be low-frequency resonant), it is now, so, described because this four resonance arms and four coupling arms are each other with gap
Resonance arm can carry out couple feed to adjacent coupling arm by gap and electric current is coupled out on the coupling arm, and described
The coupling effect of resonance arm and both coupling arms can make it that the new mode of resonance of four coupling arm formation one (is harmonic high frequency
Shake).Therefore by the resonance oscillator 11 and the combination of the two resonance of the coupled oscillator 12, the band of antenna can be increased
It is wide.
In foregoing invention embodiment, it is preferred that the dielectric-slab 10 is printed circuit board (PCB), described two resonance oscillators 11
It is printed on the same face of the printed circuit board (PCB) with described two coupled oscillators 12.Wherein, by described two resonance oscillators
11 print with described two coupled oscillators 12 and can cause the volume of the radiating doublet main body 1 on the printed circuit board
It is smaller, so as to reduce the volume of the dual polarization antenna radiation unit.It should be noted that the dielectric-slab 10 can be with
For ceramic circuit board etc., it is not specifically limited herein.
Fig. 1 and Fig. 3 are referred to, in foregoing invention embodiment, it is preferred that the feed Balun 2 includes feed base 20
And the first coaxial cable 21 between the dielectric-slab 10 and the feed base 20, the second coaxial cable 22, the
One balun pipe 23 (being chosen as copper pipe or other metal tubes) and the second balun pipe 24 (being chosen as copper pipe or other metal tubes)；Its
In, first coaxial cable 21 is used for the resonance constituted to first resonance arm 111 and second resonance arm 112
The direct feed of oscillator 11, i.e. one end input of first coaxial cable 21 has a signal source, first coaxial cable 21 it is another
The resonance oscillator 11 that one end is constituted to first resonance arm 111 with second resonance arm 112 is fed, so that
Obtain the resonance oscillator 11 formation resonance, and first coaxial cable 21 and the first balun pipe 23 are used to balancing described the
The feed current of one resonance arm 111 and second resonance arm 112；Second coaxial cable 22 is used for the 3rd resonance
The direct feed of the resonance oscillator 11 that arm 113 is constituted with the 4th resonance arm 114, i.e. second coaxial cable 22
One end input has signal source, and the other end of second coaxial cable 22 is to the 3rd resonance arm 113 and the 4th resonance
The resonance oscillator 11 that arm 114 is constituted is fed, so that the resonance oscillator 11 forms resonance, and described the one the
Two coaxial cables 22 are used to balance the 3rd resonance arm 113 and the 4th resonance arm 114 with the second balun pipe 24
Feed current.In addition, the top of first coaxial cable 21 is fixed with first resonance arm 111, the first balun pipe
23 top is fixed with second resonance arm 112；The top of second coaxial cable 22 is fixed with the 3rd resonance arm
113, the top of the second balun pipe 24 is fixed with the 4th resonance arm 114；The bottom of first coaxial cable 21, institute
The bottom for stating the bottom, the bottom of the first balun pipe 23 and the second balun pipe 24 of the second coaxial cable 22 is both secured to
On the feed base 20, so, first coaxial cable 21, second coaxial cable 22, the first balun pipe 23
And the second balun pipe 24 can support the radiating doublet main body 1.It should be noted that the first balun pipe 23 and institute
Stating the second balun pipe 24 can also be replaced with balun post (i.e. metal column).
More specifically, referring to Fig. 2, Fig. 4 and Fig. 5, the feed Balun 2 also includes the first feed body 25 and second and fed
Body 26, and the feed base 20 includes being printed with the first feed circuit (not shown) and the second feed circuit (not shown)
Printed circuit board (PCB)；Wherein, the inner wire of the top end of first coaxial cable 21 is electrically connected with first resonance arm 111,
The top of the first balun pipe 23 is electrically connected with second resonance arm 112；One end of the first feed body 25 passes through institute
State the first resonance arm 111 and be connected with the inner wire of the top end of first coaxial cable 21, the first feed body 25
The other end is connected through second resonance arm 112 and with the top of the first balun pipe 23；First coaxial cable 21
Bottom and the bottom of the first balun pipe 23 weld on the printed circuit board, and first coaxial cable 21
The outer conductor of bottom end is connected by first feed circuit with the first balun pipe 23 feed；So, first bar
The electric current containment that human relations pipe 23 can be by convection into the outer conductor of first coaxial cable 21 is fallen, therefore, first coaxial cable
21 can balance the feed current of first resonance arm 111 and second resonance arm 112 with the first balun pipe 23.This
Outside, the inner wire of the top end of second coaxial cable 22 is electrically connected with the 3rd resonance arm 113, the second balun pipe
24 top is electrically connected with the 4th resonance arm 114；One end of the second feed body 26 passes through the 3rd resonance arm 113
And be connected with the inner wire of the top end of second coaxial cable 22, the other end of the second feed body 26 is through described the
Four resonance arms 114 are simultaneously connected the bottom of second coaxial cable 22 and second bar with the top of the second balun pipe 24
The bottom of human relations pipe 24 is welded on the printed circuit board, and the outer conductor of the bottom end of second coaxial cable 22 passes through
Second feed circuit is connected with the second balun pipe 24 feed；So, the second balun pipe 24 can be by convection into institute
The electric current containment for stating the outer conductor of the second coaxial cable 22 is fallen, therefore, the one the second coaxial cable 22 and second bar
Human relations pipe 24 can balance the feed current of the 3rd resonance arm 113 and the 4th resonance arm 114.
It should be noted that first coaxial cable 21, second coaxial cable 22, the first balun pipe 23 and
The length of the second balun pipe 24 is a quarter operation wavelength.It is humorous that the first feed body 25 can completely cut off described first
The electric current for 111 and the polarization of second resonance arm 112 between the two of raising one's arm, prevents short circuit；The second feed body 26 can be with
Completely cut off the electric current of first resonance arm 111 and the polarization of second resonance arm 112 between the two, prevent short circuit.It can manage
Solution, the feed base 20 is also provided with electrically connect with first coaxial cable 21 and input has the of signal source
Triaxial cable 40 and electrically connected with second coaxial cable 22 and input and have the 4th coaxial cable 41 of signal source；Its
In, first coaxial cable 21 can pass through the feed base 20 and is integrally formed with the triaxial cable 40, institute
The feed base 20 can be passed through and be integrally formed with the 4th coaxial cable 41 by stating the second coaxial cable 22.
In foregoing invention embodiment, it is preferred that the spy of first coaxial cable 21 and second coaxial cable 22
Property impedance is 50 ohm.It should be noted that described the of other characteristic impedance numerical value can also be selected according to actual needs
One coaxial cable 21 and second coaxial cable 22.
In summary, in foregoing invention embodiment, by the way that described two resonance oscillators 11 are arranged on described two
On the dielectric-slab 10, it can so reduce the volume of oscillator (relative to the oscillator of existing metallic monolith structure)；While by
It is coplanar and interval is set each other in resonance oscillator 11 and the described two orthogonal coupled oscillators 12 of described two cross polarizations
(i.e. described two resonance oscillators 11 have gap each other with described two coupled oscillators 12) is put, so when the feed bar
When human relations 2 are fed to described two resonance oscillators 11, described two resonance oscillators 11 can form resonance, and the resonance shakes
Son 11 can also carry out coupling excitation by the gap between the coupled oscillator 12 to the coupled oscillator 12, so that
One new mode of resonance of the formation of coupled oscillator 12, therefore pass through the humorous of both resonance oscillator 11 and coupled oscillator 12
Shake, the bandwidth of antenna can be increased, therefore the size of oscillator can be reduced in the case where meeting the bandwidth of antenna (relative to existing
The size of some oscillators is 0.5 operation wavelength, and the size of the oscillator of the embodiment of the present invention can be reduced to 0.35 operating wave
Long, i.e., the size of the oscillator of the embodiment of the present invention reduces 30 or so percent compared with prior art).From upper analysis,
Because the embodiment of the present invention can reduce the size of oscillator, therefore the volume of the dual polarization antenna radiation unit can be caused to become
It is small.
For the ease of the understanding of the present invention, some for providing above-mentioned resonance oscillator 11 and coupled oscillator 12 herein are preferred
Embodiment：
Fig. 1 and Fig. 2 are referred to, the first preferred embodiment of the present invention, first resonance arm 111, described the is used as
Two resonance arms 112, the 3rd resonance arm 113 and the 4th resonance arm 114 are U-like shape structure；First coupling arm
121st, second coupling arm 122, the 3rd coupling arm 123 and the 4th coupling arm 124 be respectively provided with long strip block and with
The corner block of the long strip block connection, the long strip block is close to the central point, and the corner block is away from the central point.
Fig. 4 is referred to, second of preferred embodiment of the present invention, first resonance arm 111, second resonance is used as
Arm 112, the 3rd resonance arm 113 and the 4th resonance arm 114 are block structure；It is first coupling arm 121, described
Second coupling arm 122, the 3rd coupling arm 123 and the 4th coupling arm 124 are strip block structure.
Fig. 5 is referred to, the third preferred embodiment of the present invention, first resonance arm 111, second resonance is used as
Arm 112, the 3rd resonance arm 113 and the 4th resonance arm 114 be class E shapes structure (i.e. described first resonance arm 111 with
The resonance oscillator 11 and the 3rd resonance arm 113 that second resonance arm 112 is constituted are constituted with the 4th resonance arm 114
Resonance oscillator 11 be printing sleeve oscillator structure)；First coupling arm 121, second coupling arm 122, described
The corner block that three coupling arms 123 and the 4th coupling arm 124 are respectively provided with long strip block and be connected with the long strip block, the length
Stick is close to the central point, and the corner block is away from the central point.
It is first resonance arm 111, second resonance arm 112, described as the 4th kind of preferred embodiment of the present invention
3rd resonance arm 113 and the 4th resonance arm 114 are U-like shape structure；First coupling arm 121, second coupling
Arm 122, the 3rd coupling arm 123 and the 4th coupling arm 124 are strip block structure.
It is first resonance arm 111, second resonance arm 112, described as the 5th kind of preferred embodiment of the present invention
3rd resonance arm 113 and the 4th resonance arm 114 are block structure；First coupling arm 121, second coupling arm
122nd, the 3rd coupling arm 123 and the 4th coupling arm 124 be respectively provided with long strip block and be connected with the long strip block three
Hornblock, the long strip block is close to the central point, and the corner block is away from the central point.
It is first resonance arm 111, second resonance arm 112, described as the 6th kind of preferred embodiment of the present invention
3rd resonance arm 113 and the 4th resonance arm 114 are class E shapes structure (i.e. described first resonance arm 111 and described second humorous
The resonance oscillator that the resonance oscillator 11 and the 3rd resonance arm 113 of 112 compositions of raising one's arm are constituted with the 4th resonance arm 114
11 be printing sleeve oscillator structure)；First coupling arm 121, second coupling arm 122, the 3rd coupling arm 123
And the 4th coupling arm 124 is strip block structure.
It is pointed out that first resonance arm 111, second resonance arm 112, the 3rd resonance arm 113 and
4th resonance arm 114 can also be other structures, similarly, first coupling arm 121, second coupling arm 122,
3rd coupling arm 123 and the 4th coupling arm 124 also can also be other structures, be not specifically limited herein.This
Outside, it is to be understood that the U-like shape representation in foregoing invention embodiment is structure U-shaped like, certainly, structure is U-shaped
In the category of U-like shape structure；Class E shape structures in foregoing invention embodiment are expressed as the similar E shapes of structure, certainly, structure
It is E shapes also in the category of class E shape structures.
In addition, in order to which preferably present invention is described, the phase of the first preferred embodiment of the present invention is provided herein
The emulation data of performance parameter are closed, wherein, the emulation data of correlation performance parameters refer to Fig. 6, Fig. 7, Fig. 8 and Fig. 9.Specifically
Ground, during Fig. 6 is the standing-wave ratio SWR simulation curves that the dual polarization antenna radiation unit is operated in 780MHz-980MHz frequency ranges, figure
Solid line represents the emulation standing-wave ratio of+45 ° of ports and -45 ° of ports with dotted line respectively, as seen from the figure the dual polarization antenna radiation list
Member occurs in that two modes of resonance in 780MHz-980MHz frequency ranges：Wherein low frequency resonant modes are produced by resonance oscillator 11,
And high-frequency resonant mode is introduced by coupled oscillator 12, it is seen that the dual polarization antenna radiation unit has good impedance
Matching effect, meets SWR<1.5 relative impedances band a width of 23.7%；Fig. 7 is the isolation for being operated in 780MHz-980MHz frequency ranges
S21 curves are spent, S21 is represented between the port 1 (+45 ° of ports) and port 2 (- 45 ° of ports) of the dual polarization antenna radiation unit
Isolation, it is seen that the isolation of the dual polarization antenna radiation unit is very good, and S21 is met in whole working band<-
35dB；Fig. 8 is half-power beam width 3dB of the dual polarization antenna radiation unit in 780MHz-980MHz frequency ranges
Beamwidth simulation curve, it is seen that the dual polarization antenna radiation unit has half stable work(in whole working band
Rate beam angle, meetsAntenna for base station index request；Fig. 9 is that the dual polarization antenna radiation unit exists
The gain G ain simulation curves of 780MHz-980MHz frequency ranges, the gain of antenna is all in more than 8.5dBi.
Fig. 1 and Fig. 3 are referred to, the embodiment of the present invention additionally provides a kind of antenna assembly, it (is metal that it, which includes reflecting plate 30,
Material) and at least one dual polarization antenna radiation unit as described above；At least one described dual polarization antenna radiation unit
On the reflecting plate 30.Wherein, the directed radiation that the reflecting plate 30 can allow the antenna assembly to be stablized is special
Property, increase the gain of antenna, improve the radiation characteristics such as the cross polarization ratio of the antenna assembly.In specific use, it is preferable that
The dual polarization antenna radiation unit is arranged on the same face of the reflecting plate 30, certain dual polarization antenna radiation list
Member can also be arranged in the different faces of the reflecting plate 30.Additionally it is preferred that being fixed in the dual polarization antenna radiation unit
When on the reflecting plate 30, the balun is integrally fixed on the top surface of the reflecting plate 30, and the radiating doublet main body 1
Positioned at the top of the top surface of the reflecting plate 30.Exemplarily, if there is the balun above-mentioned feed base 20 (preferably to print
Printed circuit board), the first coaxial cable 21, the second coaxial cable 22, the first balun pipe 23 and during the second balun pipe 24, the then feedback
Electric base 20 is fixed on the top surface of the reflecting plate 30, and the radiating doublet main body 1 is located at the top surface of the reflecting plate 30
Top.Certainly, the feed base 20 can also be fixed on the bottom surface of the expelling plate, and first coaxial cable 21,
Second coaxial cable 22, the first balun pipe 23 and the second balun pipe 24 are fixed on through the through hole that the reflecting plate 30 is offered
On the feed base 20.It is preferred that each side of the reflecting plate 30 can also be correspondingly provided with a reflection side plate, this
Sample can strengthen the radiation orienting reflex performance of the reflecting plate 30, so that the antenna assembly obtains more stable
Directional radiation properties, further increase the antenna gain of the antenna assembly.
In embodiments of the present invention, because application has the above-mentioned dual polarization antenna radiation unit of small volume, therefore relatively
In prior art, the greater number of dual polarization antenna radiation unit can be installed in the antenna assembly, so as to
Improve the antenna performance (such as multifrequency performance) of the antenna assembly.
Above disclosed is only some preferred embodiments of the invention, can not limit the power of the present invention with this certainly
Sharp scope, one of ordinary skill in the art will appreciate that all or part of flow of above-described embodiment is realized, and according to present invention power
Profit requires made equivalent variations, still falls within and invents covered scope.
Claims (10)
1. a kind of dual polarization antenna radiation unit, it is characterised in that including：
Radiating doublet main body, including a dielectric-slab, the resonance oscillator for two cross polarizations being arranged on the dielectric-slab and set
Put two orthogonal coupled oscillators on the dielectric-slab, the intersection point of described two resonance oscillators and described two coupled oscillators
Intersection point overlap, described two resonance oscillators and described two coupled oscillators are coplanar and are arranged at intervals each other；And,
Feed Balun below the dielectric-slab, for supporting the radiating doublet main body and to described two resonance oscillators
It is balanced feed.
2. dual polarization antenna radiation unit according to claim 1, it is characterised in that one of them described resonance oscillator bag
The first resonance arm and the second resonance arm are included, another described resonance oscillator includes the 3rd resonance arm and the 4th resonance arm, described the
One resonance arm, the 3rd resonance arm, second resonance arm and the 4th resonance arm are coplanar and around same central point
Arrangement is set successively, and first resonance arm is symmetrical with second resonance arm, the 3rd resonance arm and the 4th resonance
Arm is symmetrical.
3. dual polarization antenna radiation unit according to claim 2, it is characterised in that one of them described coupled oscillator bag
The first coupling arm and the second coupling arm are included, another described coupled oscillator includes the 3rd coupling arm and the 4th coupling arm, described the
One coupling arm, the 3rd coupling arm, second coupling arm and the 4th coupling arm are coplanar and around the central point
Arrangement is set successively, and first coupling arm is symmetrical with second coupling arm, and the 3rd coupling arm is coupled with the described 4th
Arm is symmetrical；
First coupling arm be located between first resonance arm and the 3rd resonance arm, and with first resonance arm and
3rd resonance arm has gap respectively；3rd coupling arm be located at the 3rd resonance arm and second resonance arm it
Between, and there is gap respectively with the 3rd resonance arm and second resonance arm；Second coupling arm is located at the described 3rd
Between resonance arm and the 4th resonance arm, and there is gap respectively with the 3rd resonance arm and the 4th resonance arm；Institute
The 4th coupling arm is stated to be located between the 4th resonance arm and first resonance arm, and with the 4th resonance arm and described the
One resonance arm has gap respectively.
4. dual polarization antenna radiation unit according to claim 3, it is characterised in that first resonance arm, described
Two resonance arms, the 3rd resonance arm and the 4th resonance arm are U-like shape structure；Or,
First resonance arm, second resonance arm, the 3rd resonance arm and the 4th resonance arm are block structure；
Or,
First resonance arm, second resonance arm, the 3rd resonance arm and the 4th resonance arm are class E shape knots
Structure.
5. dual polarization antenna radiation unit according to claim 4, it is characterised in that first coupling arm, described
The triangle that two coupling arms, the 3rd coupling arm and the 4th coupling arm are respectively provided with long strip block and be connected with the long strip block
Block, the long strip block is close to the central point, and the corner block is away from the central point；Or,
First coupling arm, second coupling arm, the 3rd coupling arm and the 4th coupling arm are that strip is block
Structure.
6. the dual polarization antenna radiation unit according to claim 1 to 5 any one, it is characterised in that the dielectric-slab
For printed circuit board (PCB), described two resonance oscillators are printed on the same face of the printed circuit board (PCB) with described two coupled oscillators
On.
7. the dual polarization antenna radiation unit according to claim 2 to 5 any one, it is characterised in that the feed bar
Human relations include feed base and located at the first coaxial cable between the dielectric-slab and the feed base, the second coaxial electrical
Cable, the first balun pipe and the second balun pipe；Wherein,
First coaxial cable is used to enter the resonance oscillator that first resonance arm is constituted with second resonance arm
Row feed, and first coaxial cable and the first balun pipe are for balancing first resonance arm and second resonance
The feed current of arm；Second coaxial cable is described humorous for what is constituted to the 3rd resonance arm and the 4th resonance arm
Oscillator is fed, and second coaxial cable and the second balun pipe be used to balancing the 3rd resonance arm with it is described
The feed current of 4th resonance arm；
The top of first coaxial cable is fixed with first resonance arm, and the top of the first balun pipe is fixed with described
Second resonance arm；The top of second coaxial cable is fixed with the 3rd resonance arm, and the top of the second balun pipe is consolidated
Surely there is the 4th resonance arm；The bottom of first coaxial cable, the bottom of second coaxial cable, first balun
The bottom of pipe and the bottom of the second balun pipe are both secured on the feed base.
8. dual polarization antenna radiation unit according to claim 7, it is characterised in that the feed Balun also includes first
Body and the second feed body are fed, and the feed base includes being printed with the printing of the first feed circuit and the second feed circuit
Circuit board；Wherein,
The inner wire of the top end of first coaxial cable is electrically connected with first resonance arm, the top of the first balun pipe
End is electrically connected with second resonance arm；The bottom of first coaxial cable and the bottom of the first balun pipe are welded on
On the printed circuit board (PCB), and the bottom end of first coaxial cable outer conductor by first feed circuit with it is described
The feed connection of first balun pipe；
The inner wire of the top end of second coaxial cable is electrically connected with the 3rd resonance arm, the top of the second balun pipe
End is electrically connected with the 4th resonance arm；The bottom of second coaxial cable and the bottom of the second balun pipe are welded on
On the printed circuit board (PCB), and the bottom end of second coaxial cable outer conductor by second feed circuit with it is described
The feed connection of second balun pipe；
One end of the first feed body is through first resonance arm and with being led in the top end of first coaxial cable
Body is connected, and the other end of the first feed body is connected through second resonance arm and with the top of the first balun pipe；
One end of the second feed body connects through the 3rd resonance arm and with the inner wire of the top end of second coaxial cable
Connect, the other end of the second feed body is connected through the 4th resonance arm and with the top of the second balun pipe.
9. dual polarization antenna radiation unit according to claim 7, it is characterised in that first coaxial cable with it is described
The characteristic impedance of second coaxial cable is 50 ohm；First coaxial cable, second coaxial cable, first bar
The length of human relations pipe and the second balun pipe is a quarter operation wavelength.
10. a kind of antenna assembly, it is characterised in that including reflecting plate and at least one such as claim 1 to 9 any one institute
The dual polarization antenna radiation unit stated；At least one described dual polarization antenna radiation unit is on the reflecting plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710360876.0A CN107317100A (en) | 2017-05-18 | 2017-05-18 | A kind of dual polarization antenna radiation unit and antenna assembly |
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| CN201710360876.0A CN107317100A (en) | 2017-05-18 | 2017-05-18 | A kind of dual polarization antenna radiation unit and antenna assembly |
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| CN110034371A (en) * | 2019-04-01 | 2019-07-19 | 深圳市信维通信股份有限公司 | Wideband base station element antenna and antenna for base station |
| CN111106439A (en) * | 2019-05-31 | 2020-05-05 | 京信通信技术(广州)有限公司 | Base station antenna and dual-polarized antenna oscillator thereof |
| CN111525234A (en) * | 2020-06-02 | 2020-08-11 | Oppo广东移动通信有限公司 | Dual-polarized antenna and customer front-end equipment |
| CN112886232A (en) * | 2019-11-30 | 2021-06-01 | 华为技术有限公司 | Electronic device |
| CN113131193A (en) * | 2019-12-30 | 2021-07-16 | 华为技术有限公司 | Dual-polarized antenna, router and base station |
| CN114914680A (en) * | 2022-06-16 | 2022-08-16 | 太仓市同维电子有限公司 | Ultra-wideband miniaturized dual-polarized antenna radiation unit |
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| CN110034371A (en) * | 2019-04-01 | 2019-07-19 | 深圳市信维通信股份有限公司 | Wideband base station element antenna and antenna for base station |
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| CN113131193A (en) * | 2019-12-30 | 2021-07-16 | 华为技术有限公司 | Dual-polarized antenna, router and base station |
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| CN111525234A (en) * | 2020-06-02 | 2020-08-11 | Oppo广东移动通信有限公司 | Dual-polarized antenna and customer front-end equipment |
| WO2021244158A1 (en) * | 2020-06-02 | 2021-12-09 | Oppo广东移动通信有限公司 | Dual-polarized antenna and customer premise equipment |
| CN114914680A (en) * | 2022-06-16 | 2022-08-16 | 太仓市同维电子有限公司 | Ultra-wideband miniaturized dual-polarized antenna radiation unit |
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Application publication date: 20171103 |