CN108767449A - Multi-standard based on AMC structures merges antenna - Google Patents
Multi-standard based on AMC structures merges antenna Download PDFInfo
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- CN108767449A CN108767449A CN201810623517.4A CN201810623517A CN108767449A CN 108767449 A CN108767449 A CN 108767449A CN 201810623517 A CN201810623517 A CN 201810623517A CN 108767449 A CN108767449 A CN 108767449A
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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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The multi-standard based on AMC structures that the invention discloses a kind of merging antenna, including：Medium substrate, the medium substrate includes the first plate face and the second plate face, two AMC structures of the first metallic reflector that medium substrate is set in the first plate face, the second metallic reflector being set in the middle part of the width of the second plate face and the both sides for being arranged at intervals at the second metallic reflector, two AMC structures may be contained in the second plate face；First radiating element, the first radiating element are set on the second metallic reflector；And second radiating element, the second radiating element are set in the second plate face and are staggered with the first radiating element；Wherein, the working frequency of the first radiating element is within the energy gap of AMC structures, and the working frequency of the second radiating element is except the energy gap of AMC structures.The multi-standard based on AMC structures merges antenna, can reduce influence of the surface wave to 5G networks, convenient for integrating the second radiating element and the first radiating element on same antenna for base station.
Description
Technical field
The present invention relates to antenna technical fields, and antenna is merged more particularly to a kind of multi-standard based on AMC structures.
Background technology
In present mobile communication technology, mobile base station is the basic unit of mobile network, and antenna for base station directly affects
The covering of signal and the performance of network.Especially into after 4G/5G, base station deployment is more and more difficult, based on AMC structures
Multi-standard fusion antenna becomes increasingly complex.
When antenna for base station develops to the fusion of 4G and 5G, since frequency range is more, it is related to 690MHz-960MHz, 1.69GHz-
2.69GHz, 3.3GHz-3.8GHz, 4.4GHz-5.2GHz；And after antenna frequencies are more than 3GHz, due to depositing for surface wave
It will appear obvious ripple before antenna to main lobe.Especially main lobe ripple can cause certain directive gains to decline, secondary lobe
Rise, reduces network performance.
Invention content
Based on this, it is necessary to provide a kind of multi-standard fusion antenna based on AMC structures, surface wave can be reduced to 5G nets
It is small to be conducive to antenna for base station convenient for integrating the second radiating element and the first radiating element on same antenna for base station for the influence of network
Typeization develops and arrangement in a limited space.
Its technical solution is as follows：
On the one hand, the application provides a kind of multi-standard fusion antenna based on AMC structures, including：Medium substrate is given an account of
Matter substrate includes the first plate face and second plate face opposite with first plate face, and the medium substrate is set to described
The first metallic reflector in one plate face is set to the second metallic reflector of second plate face and is arranged at intervals at institute
Two AMC structures of the both sides of the second metallic reflector are stated, two AMC structures may be contained in second plate face；Energy
The first antenna array of 5G network formats is worked in, the first antenna array includes being set on second metallic reflector
Multiple first radiating elements；And the second aerial array of 4G network formats can be worked in, second aerial array includes setting
Multiple second radiating elements for being placed in second plate face and being staggered with first radiating element；Wherein, each described
The working frequency of one radiating element is within the scope of the forbidden band of AMC structures, and the working frequency of second radiating element is in AMC
Except the forbidden band range of structure.
When above-mentioned multi-standard fusion Antenna Operation based on AMC structures, the first radiating element will produce positive radiation and
The surface wave propagated along reflected bottom plate, the two are superimposed upon main lobe and nearby generate ripple.By in the both sides of the second metallic reflector
Be arranged AMC structures, using AMC (Artificial Magnetic Conductor, artificial magnetic conductor) structure electromagnetism stopband and
High-impedance behavior inhibits the surface wave propagated along medium substrate surface, reduces overlaying influence of the surface wave to forward radiation wave, drop
Low forward direction main lobe ripple optimizes 5G network performances.Simultaneously for the second radiating element, working frequency is not in the resistance of AMC structures
In band range, 4G network performances are not influenced.The second radiating element and the first radiation can be so integrated on same antenna for base station
Unit is conducive to antenna for base station miniaturization and arrangement in a limited space.
Technical solution is illustrated further below：
In a wherein embodiment, first radiating element is chip unit；Second radiating element includes
It is set to described in cross-polarized two electrode couple and the corresponding feed Balun for supporting the dipole, the feed Balun
Between AMC structures so that the dipole is set to the top of the AMC structures and the chip unit.It is arranged such so that
First radiating element and the second radiating element are easier to make for stagger setting, and overall compact are set on medium substrate.
In a wherein embodiment, the AMC structures include multiple metallic reflectors and with the metallic reflector
One-to-one metallization VIA, all metallic reflectors pass through the metallization VIA and first metallic reflection
Layer conducting, and all metallic reflectors are set to above first metallic reflector, all two adjacent gold
There are electromagnetic coupling gaps between category reflecting layer.There are electromagnetic coupling gap is equivalent between two adjacent metallic reflectors
In a capacitance, metallization VIA is equivalent to an inductance, and such capacitor and inductor forms a resonant tank, and the value of the two determines
The energy gap of AMC structures, and then it is conveniently adjusted the energy gap of AMC structures so that the energy gap of AMC structures includes first
The working frequency of radiating element, and the working frequency not comprising the second radiating element.
In a wherein embodiment, the both sides of second metallic reflector are respectively equipped at least six row metals
Reflecting layer.Can obtain preferably improves ripple effect.
In a wherein embodiment, the metallic reflector has a rectangular shape, the dielectric constant of the medium substrate
When being 4.2, it is 0.001 λ -0.003 λ that the length of side W of the metallic reflector, which is 0.08 λ -0.13 λ, the electromagnetic coupling gap g,
The thickness of the medium substrate is 0.01 λ -0.04 λ, and the outer radius R of the metallization VIA is 0.005 λ -0.007 λ.
In a wherein embodiment, the length of side W of the metallic reflector is 0.11 λ, and the electromagnetic coupling gap g is
The thickness of 0.002 λ, the medium substrate are 0.03 λ, and the outer radius R of the metallization VIA is 0.006 λ.
In a wherein embodiment, the medium substrate is moulding, first metallic reflector and described the
Two metallic reflectors are electroplated metal layer.The manufacturing cost of this antenna for base station can so be reduced.
In a wherein embodiment, the second metal layer and two AMC structures are along second plate face
Width direction is arranged.So that the AMC can preferably inhibit the surface wave propagated along medium substrate surface, surface wave is reduced
To the overlaying influence of forward radiation wave, to main lobe ripple before reducing.
In a wherein embodiment, the multi-standard fusion antenna based on AMC structures further includes being arranged at intervals at
Two the first side plates of the both sides of second metallic reflector and it is arranged at intervals at two of both sides of second plate face
Second side plate, first side plate are set between the AMC structures and second metallic reflector, and second side plate is set
It is placed in the outside of the AMC structures.The boundary that antenna is formed using the first side plate and the second side plate, for adjusting directional diagram.
It is anti-it to be equipped with third metal in a wherein embodiment, on the outside of first side plate and second side plate
Penetrate layer.And then metal is collectively formed with the first metallic reflector, play the role of common metal reflecting plate.
Description of the drawings
Fig. 1 is the schematic top plan view of the multi-standard fusion antenna based on AMC structures in an embodiment；
Fig. 2 is the schematic side view of antenna for base station shown in FIG. 1；
Fig. 3 is the close-up schematic view of A shown in Fig. 2；
Fig. 4 is the electric performance test curve synoptic diagram of the multi-standard fusion antenna based on AMC structures of the present embodiment.
Reference sign：
100, medium substrate, the 110, first plate face, the 120, second plate face, the 130, first metallic reflector, the 140, second gold medal
Belong to reflecting layer, 150, AMC structures, 152, metallic reflector, 154, metallization VIA, 156, electromagnetic coupling gap, 200, first
Radiating element, the 300, second radiating element, the 400, first side plate, the 500, second side plate.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing and specific embodiment party
Formula, the present invention is further described in detail.It should be understood that the specific embodiments described herein are only solving
The present invention is released, protection scope of the present invention is not limited.
It should be noted that when element is referred to as " being set to " 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.When element is mutually perpendicular to or near normal refers to another element
The perfect condition of the two is vertical, but the influence because manufacturing and assembling, and may exist certain vertical error.It is used herein
Term " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only, be not offered as be
Unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant Listed Items.
" first ", " second " involved in the present invention do not represent specific quantity and sequence, are only used for the area of title
Point.
As shown in Figure 1 to Figure 3, it is somebody's turn to do the multi-standard based on AMC structures and merges antenna, including：Medium substrate 100, medium base
Plate 100 includes the first plate face 110 and second plate face 120 opposite with the first plate face 110, and medium substrate 100 is set to the
The first metallic reflector 130 in one plate face 110, the second metallic reflector 140 for being set to the second plate face 120 and interval
Two AMC structures 150 of the both sides of the second metallic reflector 140 are set to, two AMC structures 150 may be contained within the second plate face
On 120；The first antenna array (not marking) of 5G network formats can be worked in, first antenna array includes being set to the second metal
Multiple first radiating elements 200 on reflecting layer 140；And the second aerial array (not marking) of 4G network formats can be worked in,
Second aerial array includes multiple second spokes for being set in second plate face 120 and being staggered with the first radiating element 200
Penetrate unit 300；Wherein, the working frequency of the first radiating element 200 is within the energy gap of AMC structures 150, and the second radiation
The working frequency of unit 300 is except the energy gap of AMC structures 150.
When the above-mentioned multi-standard based on AMC structures merges Antenna Operation, the first radiating element 200 will produce positive radiation
With the surface wave propagated along reflected bottom plate, the two is superimposed upon main lobe and nearby generates ripple.By in the second metallic reflector 140
AMC structures 150 are arranged in both sides, utilize the electricity of AMC (Artificial Magnetic Conductor, artificial magnetic conductor) structure
Magnetic resistance band and high-impedance behavior inhibit the surface wave propagated along 100 surface of medium substrate, reduce surface wave to forward radiation wave
Overlaying influence optimizes 5G network performances to main lobe ripple before reducing.Simultaneously for the second radiating element 300, working frequency is not
In the stopband range of AMC structures 150,4G network performances are not influenced.The second spoke can be so integrated on same antenna for base station
It penetrates unit 300 and it is small to also help antenna for base station in the case where improving the radiance of antenna for the first radiating element 200
Typeization develops and arrangement in a limited space.
It needs to illustrate, the first radiating element 200 refers to the radiating element that disclosure satisfy that 5G mobile networks and require；The
Two radiating elements 300 refer to the radiating element that disclosure satisfy that 4G mobile networks and require；First metallic reflector 130, the second metal
Reflecting layer 140 and third metallic reflector can be set to using the prior art on corresponding position, such as plating, printing development.
Specifically, the working frequency of first radiating element 200 be 3.3GHz-3.8GHz or 4.4GHz-5.2GHz, second
The working frequency of radiating element 300 is 690MHz-960MHz or 1.69GHz-2.69GHz；The energy gap of the AMC structures 150
More than 3GHz.It of courses, the first radiating element 200 and the second radiating element 300 can also have other working frequencies, including but not
It is only limitted to above range.
Specific in the present embodiment, the second metallic reflector 140 is set in the middle part of the width of the second plate face 120.
First radiating element 200 can be common symmetrical dipole or chip unit, be placed in the middle part of reflected bottom plate, and
Including connecting their power division network；Second radiating element 300 is common symmetrical dipole, can be placed in the first radiating element 200
Between or both sides, or be placed on 150 layers of the AMC structures of both sides.
Specifically, as shown in Figures 1 and 2, the first radiating element 200 is chip unit (not marking)；Second radiating element
300 in cross-polarized two electrode couple (not marking) and the corresponding feed Balun (not marking) for supporting dipole, feed Balun
(not marking) is set between AMC structures 150 so that dipole is set to the upper of AMC structures 150 and chip unit.So set
It sets so that the first radiating element 200 is easier to make for being staggered with the second radiating element 300, and longitudinally spaced in medium substrate 100
Stagger setting so that the first radiating element 200 and the second radiating element 300 is overall compact is set on medium substrate 100 has
Conducive to antenna for base station miniaturization.
It should be noted that " feed Balun (not marking) is set between AMC structures 150 " refers to that feed Balun is directly solid
It is scheduled on medium substrate without being directly anchored in AMC structures, then AMC structures enclose the outer edge set on feed Balun again.AMC
Structure can be contacted with feed Balun, can not also be contacted with feed Balun, be not limited herein.
Based on any of the above embodiments, as shown in Figures 1 and 3, AMC structures 150 include multiple metallic reflectors
152 and with 152 one-to-one metallization VIA 154 of metallic reflector, all metallic reflectors 152 pass through metallization VIA
154 and first metallic reflector 130 be connected, and all metallic reflectors 152 are set to the top of the first metallic reflector 130, institute
Have between two adjacent metallic reflectors 152 that there are electromagnetic coupling gaps 156.Between two adjacent metallic reflectors 152
There are electromagnetic coupling gaps 156 to be equivalent to a capacitance, and metallization VIA 154 is equivalent to an inductance, such capacitor and inductor group
At a resonant tank, the value of the two determines the energy gap of AMC structures 150, and then is conveniently adjusted the forbidden band of AMC structures 150
Width so that the energy gap of AMC structures 150 includes the working frequency of the first radiating element 200, and single not comprising the second radiation
The working frequency of member 300.
Further, the both sides of the second metallic reflector 140 are respectively equipped at least six row metallic reflectors 152.Such energy
Enough obtain preferably improves ripple effect.
Further, when the dielectric constant of medium substrate 100 is 4.2, the length of side W of metallic reflector 152 is 0.08 λ-
0.13 λ, electromagnetic coupling gap 156g are 0.001 λ -0.003 λ, and the thickness of medium substrate 100 is 0.01 λ -0.04 λ, is metallized
The outer radius R in hole 154 is 0.005 λ -0.007 λ.In this range, acquisition improvement ripple effect is preferably also most stable, and the base
The overall performance of station antenna is also optimal.In specific embodiment, the length of side W of metallic reflector 152 is 0.11 λ, electromagnetic coupling gap
156g is 0.002 λ, and the thickness of medium substrate 100 is 0.03 λ, and the outer radius R of metallization VIA 154 is 0.006 λ, effect,
As shown in Figure 4.Abscissa in Fig. 4 indicates that angle in the horizontal plane, ordinate indicate that main polarization parameter, dotted line indicate tradition
4G and 5G antenna for base station performance curve, solid line indicates the performance curve of the application antenna for base station.Wherein, λ is the first radiation
The corresponding wavelength of centre frequency of cell operation frequency range.
Based on any of the above embodiments, medium substrate 100 is moulding, the first metallic reflector 130 and second
Metallic reflector 140 is electroplated metal layer.So that the medium substrate 100 can be fabricated by integral molding techniques, have
More preferable intensity is convenient for post-production, can reduce the manufacturing cost of this antenna for base station.
Specifically, second metal layer and two AMC structures 150 are arranged along the width direction of the second plate face 120.So that
The AMC can preferably inhibit the surface wave propagated along 100 surface of medium substrate, reduce superposition of the surface wave to forward radiation wave
It influences, to main lobe ripple before reducing.
Based on any of the above embodiments, multi-standard fusion antenna that should be based on AMC structures further includes interval setting
In the both sides of the second metallic reflector 140 two the first side plates 400 and be arranged at intervals at the both sides of the second plate face 120
Two the second side plates 500, the first side plate 400 are set between AMC structures 150 and the second metallic reflector 140, the second side plate
500 are set to the outside of AMC structures 150.The boundary that antenna is formed using the first side plate 400 and the second side plate 500, for adjusting
Directional diagram.
Further, the outside of the first side plate 400 and the second side plate 500 is equipped with third metallic reflector (not shown).
And then metal is collectively formed with the first metallic reflector 130, play the role of common metal reflecting plate.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep 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.
Several embodiments of the invention above described embodiment only expresses, the description thereof 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 coming for those of ordinary skill in the art
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 (10)
1. a kind of multi-standard based on AMC structures merges antenna, which is characterized in that including：
Medium substrate, the medium substrate include the first plate face and second plate face opposite with first plate face, the medium
The first metallic reflector that substrate is set in first plate face, the second metallic reflection for being set to second plate face
Layer and be arranged at intervals at second metallic reflector both sides two AMC structures, two AMC structures are respectively provided with
In in second plate face；
The first antenna array of 5G network formats can be worked in, the first antenna array is anti-including being set to second metal
Penetrate multiple first radiating elements on layer；And
The second aerial array of 4G network formats can be worked in, second aerial array includes being set to second plate face
Multiple second radiating elements that are upper and being staggered with first radiating element；
Wherein, the working frequency of each first radiating element is within the scope of the forbidden band of AMC structures, and second radiation is single
The working frequency of member is except the forbidden band range of AMC structures.
2. the multi-standard according to claim 1 based on AMC structures merges antenna, which is characterized in that first radiation
Unit is chip unit；Second radiating element includes in cross-polarized two electrode couple and the corresponding bearing dipole
Feed Balun, the feed Balun is set between the AMC structures so that the dipole is set to the AMC structures
And the top of the chip unit.
3. the multi-standard according to claim 1 based on AMC structures merges antenna, which is characterized in that the AMC structures packet
Include multiple metallic reflectors and with the one-to-one metallization VIA of the metallic reflector, all metallic reflectors are logical
It crosses the metallization VIA to be connected with first metallic reflector, and all metallic reflectors are set to first gold medal
Belong to above reflecting layer, there are electromagnetic coupling gaps between all two adjacent metallic reflectors.
4. the multi-standard according to claim 3 based on AMC structures merges antenna, which is characterized in that second metal
The both sides in reflecting layer are respectively equipped at least six row metallic reflectors.
5. the multi-standard according to claim 3 based on AMC structures merges antenna, which is characterized in that the metallic reflection
Layer has a rectangular shape, and when the dielectric constant of the medium substrate is 4.2, the length of side W of the metallic reflector is 0.08 λ -0.13
λ, the electromagnetic coupling gap g are 0.001 λ -0.003 λ, and the thickness of the medium substrate is 0.01 λ -0.04 λ, the metallization
The outer radius R of via is 0.005 λ -0.007 λ；Wherein, λ is the corresponding wave of centre frequency of the first radiating element working frequency range
It is long.
6. the multi-standard according to claim 5 based on AMC structures merges antenna, which is characterized in that the metallic reflection
The length of side W of layer is 0.11 λ, and the electromagnetic coupling gap g is 0.002 λ, and the thickness of the medium substrate is 0.03 λ, the metal
The outer radius R for changing via is 0.006 λ.
7. the multi-standard according to claim 1 based on AMC structures merges antenna, which is characterized in that the medium substrate
For moulding, first metallic reflector and second metallic reflector are electroplated metal layer.
8. the multi-standard according to any one of claims 1 to 7 based on AMC structures merges antenna, which is characterized in that described
Second metal layer and two AMC structures are arranged along the width direction of second plate face.
9. the multi-standard according to claim 8 based on AMC structures merges antenna, which is characterized in that further include that interval is set
It is placed in two the first side plates of the both sides of second metallic reflector and is arranged at intervals at the both sides of second plate face
Two the second side plates, first side plate are set between the AMC structures and second metallic reflector, the second side
Plate is set to the outside of the AMC structures.
10. the multi-standard according to claim 9 based on AMC structures merges antenna, which is characterized in that first side plate
And it is equipped with third metallic reflector on the outside of second side plate.
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| CN201810623517.4A CN108767449B (en) | 2018-06-15 | 2018-06-15 | Multi-system fusion antenna based on AMC structure |
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| CN201810623517.4A CN108767449B (en) | 2018-06-15 | 2018-06-15 | Multi-system fusion antenna based on AMC structure |
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| CN108767449B (en) | 2020-12-15 |
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