CN107046183A - Utilize the array antenna of artificial magnetic conductor - Google Patents
Utilize the array antenna of artificial magnetic conductor Download PDFInfo
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- CN107046183A CN107046183A CN201610651737.9A CN201610651737A CN107046183A CN 107046183 A CN107046183 A CN 107046183A CN 201610651737 A CN201610651737 A CN 201610651737A CN 107046183 A CN107046183 A CN 107046183A
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- 230000009977 dual effect Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 35
- 230000010287 polarization Effects 0.000 description 6
- 101100522110 Oryza sativa subsp. japonica PHT1-10 gene Proteins 0.000 description 5
- 101100522109 Pinus taeda PT10 gene Proteins 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
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- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
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- 230000005855 radiation Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011022 operating instruction Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
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- 238000002834 transmittance Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- 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
- H01Q19/005—Patch antenna using one or more coplanar parasitic elements
-
- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
-
- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The present invention discloses the array antenna using artificial magnetic conductor.Included according to the array antenna of one embodiment of the invention：Dielectric base plate, first layer, the second layer with stacking, third layer；Conductive region, ground plane and feeder line comprising the first layer for being arranged in the dielectric base plate；Paster antenna, is arranged in the third layer of the dielectric base plate, is arranged with multiple unit antennas, and a part for unit antenna is connected by conductor via with the feeder line；And artificial magnetic conductor, it is arranged in the second layer of the dielectric base plate, block the interference between the paster antenna and the conductive region, and, the artificial magnetic conductor has the network that multiple pattern forms are separated by and repeatedly arranged with default interval each other, so that with default frequency formation resonance.
Description
Technical field
The present invention, which can be used, to be utilized the electronic installation of millimeter wave (mmW) frequency band, can improve letter using artificial magnetic conductor
Number interfere and be conducive to miniaturization array antenna.
Background technology
In recent years, the function of the electronic installation such as portable terminal gradually becomes variation, accordingly, in order to be taken to electronic equipment
Various function is carried, it is necessary to which built-in increasing part and circuit, accordingly, due to the limited space of electronic equipment, are needed
Realize the miniaturization of built-in part and circuit.
In addition, in the electronic equipment for performing radio communication, the antenna in the larger area of occupancy or space is also required to more
Small size makes.
In recent years, the radio communication of the millimeter wave frequency band attracted attention for the use possibility realized due to wide bandwidth,
The letter in air transmittance process can be caused using the array antenna that can concentrate signal to tackle the characteristic of millimeter wave frequency band
Number decay it is very big the problem of.
However, the antenna of millimeter wave frequency band is because size is proportional to wavelength and has the antenna for being relatively shorter than other frequency bands
Physics size, but the signal attenuation in transmitting procedure is larger, it is therefore desirable to signal is concentrated, but in order to concentrate signal,
It can utilize by the array antenna arranging multiple single antennas and constitute, thus to be arranged with the knots of multiple single antennas
Array antenna is made in structure, thus there is its size can increased shortcoming.
, it is necessary to be made with small size as far as possible in the structure of array antenna as described above, but if feeder line, connect
The distance between ground, pattern are excessively near, then the problem of may occurring interference and the performance degradation of signal.
Due to it is as described above the problem of presence, the diminution of the size of array antenna will be limited.
It is related to the artificial magnetic of the band separation for will abut against in the patent document 1 described in following prior art literatures
Conductor and antenna, it does not disclose the solution of the solution problem for above-mentioned prior art.
【Prior art literature】
【Patent document】
(patent document 1) KR published patent 2010-0034327 publications
The content of the invention
The present invention is proposed to solve above-mentioned problem of the prior art, and it provides one kind and utilizes artificial magnetic conductor
Array antenna, its prevented by using artificial magnetic conductor paster antenna (patch antenna) as the present invention first
Technology side, the present invention provides a kind of array antenna, including：Dielectric base plate, first layer, the second layer with stacking, the 3rd
Layer；Conductive region, ground plane and feeder line comprising the first layer for being arranged in the dielectric base plate；Paster antenna, is arranged in
The third layer of the dielectric base plate, is arranged with multiple unit antennas, the part of unit antenna by conductor via with institute
State feeder line connection；And artificial magnetic conductor, the second layer of the dielectric base plate is arranged in, the paster antenna is blocked and described
Interference between conductive region, and the artificial magnetic conductor there are multiple pattern forms each other with default interval is separated by and it is anti-
The network arranged again, so that with default frequency formation resonance.
There is provided one in the multiple concepts illustrated in following embodiments in the solution of this problem.
The purpose for the solution that this problem is provided simultaneously does not lie in the core technology or necessary technology for confirming asked item, only not
It is to describe one in asked item to cross, and the item asked is obtained in following embodiments respectively
Detailed description.
According to the present invention it is possible to prevent the letter between paster antenna and the conductive region of its underpart using artificial magnetic conductor
Number interference, the problem of so as to solve performance degradation, and can realize the making of miniaturization, so as to improve effect accordingly
Rate and interests.
Brief description of the drawings
Fig. 1 is the exemplary plot for the planar alignment structure for showing array antenna according to an embodiment of the invention.
Fig. 2 is the first exemplary plot for showing the structure of unit antenna according to an embodiment of the invention.
Fig. 3 is the second exemplary plot for showing the structure of unit antenna according to an embodiment of the invention.
Fig. 4 is the structure of the primary antenna paster and sub-antenna paster that show unit antenna according to an embodiment of the invention
Exemplary plot.
Fig. 5 is the exemplary plot for showing the structure of artificial magnetic conductor according to an embodiment of the invention.
Fig. 6 (a), (b) is the operating instruction figure for showing artificial magnetic conductor according to an embodiment of the invention.
Fig. 7 is the curve for showing the reflected phase characteristics by frequency of artificial magnetic conductor according to an embodiment of the invention
Figure.
Fig. 8 is the exemplary plot for showing the surface current of artificial magnetic conductor according to an embodiment of the invention.
Symbol description
100：Dielectric base plate 110,120,130：First layer, the second layer, third layer
200：Ground plane 300：Feeder line
400：Paster antenna 400-1~400-8：Multiple unit antennas
500：Artificial magnetic conductor 600：Conductor via
400-1a：Primary antenna paster 400-1b：Sub-antenna paster
Embodiment
Below, it is to be understood that the invention is not limited in embodiment described, and can not depart from the present invention
The present invention is changed in various mode on the premise of purport and scope.
Moreover it will be understood that for each embodiment of the present invention, structure, the shape illustrated as an example
And numerical value is only used for helping understanding the example of the technology item of the present invention, thus the invention is not limited in this, Ke Yi
The present invention is changed in various mode in the case of the purport and scope that do not depart from the present invention.Embodiments of the invention can phase
Mutually combine and constitute a variety of new embodiments.
Moreover, in the accompanying drawing of reference in the present invention, there is substantially the same structure in the overall content of the present invention
Identical label will be used into the inscape with function.
Hereinafter, to enable in the technical field belonging to the present invention easily to implement this hair with the people of ABC
It is bright, embodiments of the invention will be described in detail with reference to appended accompanying drawing.
Fig. 1 is the exemplary plot for the planar array structure for showing array antenna according to an embodiment of the invention.Fig. 2 is to show
First exemplary plot of the structure of unit antenna according to an embodiment of the invention, its Fig. 2 is the section for the A1-A2 lines for showing Fig. 1
The figure of structure.
Reference picture 1, the paster antenna 400 can include multiple unit antenna 400-1~400-8.Here, without limiting
For the number of specific unit antenna.
Reference picture 1 and Fig. 2, according to an embodiment of the invention array antenna can include：Dielectric base plate 100；Lead
Body region (the 200 of Fig. 2), with ground plane (the 210 of Fig. 2) and feeder line (the 220 of Fig. 2)；(Fig. 2 400- of paster antenna 400
1)；And artificial magnetic conductor 500.
The dielectric base plate 100 can include multiple layers, as one, can include first layer 110, the second layer 120
And third layer 130.
In addition, the first layer 110, the second layer 120 and third layer 130 can be single layer respectively, or it is described
First layer 110, the second layer 120 and third layer 130 can be the layer with the sandwich construction comprising at least two layer respectively.
The ground plane 210 can be disposed at the first layer 110 of the dielectric base plate 100, and the feeder line 220 can be disposed at
The first layer 110 of the dielectric base plate 100, now, the feeder line 220 can be physically separated with the ground plane 210, and
And in order to perform communication, may be electrically connected to the circuit portion of outside.
It is described to connect in the case where the first layer 110 of the dielectric base plate 100 is a single layer as one
Ground 210 and feeder line 220 can be arranged in the first layer 110 of the dielectric base plate 100 in the way of being electrically separated from each other.
It is described in the case where the first layer 110 of the dielectric base plate 100 is multiple stepped constructions as another example
Ground plane 210 and feeder line 220 can be arranged in the mutually different layer in the first layer 110 of the dielectric base plate 100.
With reference to Fig. 1, the paster antenna 400 can be arranged in the third layer 130 of the dielectric base plate 100, it is possible to
Comprising multiple unit antenna 400-1~400-8, the part of the unit antenna by conductor via (the 600 of Fig. 2) with institute
Feeder line 220 is stated to connect.Now, the paster antenna 400 can be microstrip antenna (microstrip antenna).
The multiple unit antenna 400-1~400-8 can realize feeding respectively and (be schemed by shown conductor via
600) 2 be electrically connected to the feeder line 220.
In Fig. 2, the section knot of the first unit antenna 400-1 in the multiple unit antenna 400-1~400-8 is shown
Structure, and this structure can equally be applied to other unit antenna.
The artificial magnetic conductor 500 can be arranged in the second layer 120 of the dielectric base plate, so that in the paster day
Prevented and the interference between the paster antenna 400 and the conductive region 200 between line 400 and the conductive region 200.
Generally, magnetic conductor (magnetic conductor) corresponds to general electric conductor (electric
Conductor), therefore on the surface of electric conductor, the tangential component of electric field is almost 0, but on the surface of magnetic conductor, magnetic
The tangential component of field is almost 0.Therefore, magnetic current will be unable to flow to the surface of electric conductor；On the contrary, electric current will be unable to flow to magnetic conductance
The surface of body.
Due to the property of this magnetic conductor, magnetic conductor in circuitry under specific frequency have at a relatively high resistance,
That is, it act as the composition of the function of open electric circuit.As one, this magnetic conductor can by artificial production method by copper,
The electric conductor such as silver or gold is configured to specific geometry (for example, the arrangement of unit cell repeatedly), so that it has
There is the feature of magnetic conductor, the magnetic conductor so artificially made is now referred to as artificial magnetic conductor (Artificial Magnetic
Conductor：AMC).
Generally, artificial magnetic conductor has does not have the part of back wave phase place change for specific frequency, the one of the present invention
In embodiment, the property of this artificial magnetic conductor is utilized.
As one, multiple pattern forms can be had with pre- according to the artificial magnetic conductor 500 of one embodiment of the invention
If the interval network that is separated by and arranges repeatedly, with default frequency formation resonance.The network can be with
Be formed as the structure for being separated by and being arranged repeatedly with default interval by multiple pattern forms, to form humorous in default frequency
Shake.
Here, the resonant frequency produced by the resonance of the artificial magnetic conductor 500 can be set to and the frequency that communicates
Rate is identical.In the case, in the case where incidence has the signal with the resonant frequency identical frequency, the signal reflected
Phase will be identical with incident signal so that incoming signal and reflected signal will not at least cause destructive interference each other, especially
It, can produce synergy (synergistic effect) by constructive interference to signal radiation.
As one, the artificial magnetic conductor 500 can be arranged in the whole of the 2nd layer 120 of the dielectric base plate 100
Body.
Unlike this, the artificial magnetic conductor 500 can be arranged in the 2nd layer 120 of the dielectric base plate 100 with
The region that the multiple unit antenna 400-1~400-8 is vertically overlapped.
As described above, as the artificial magnetic conductor 500 is arranged in the paster antenna 400 and the conductive region 200
Between, if the resonant frequency by the artificial magnetic conductor 500 to be set as to, the letter of communication frequency identical with communication frequency
Number phase will be identical with the phase of the signal reflected by artificial magnetic conductor 500, therefore, it can perform by the paster
Function that the ground plane 210 of antenna 400 and conductive region 200 is separated and by the paster antenna 400 and conductive region 200
The function that feeder line 220 is separated.
Accordingly, paster antenna 400 can not be included by the conductive region 200 of its underpart ground plane 210 and feeder line
Signal interference caused by 220, can be smoothly performed the operation of antenna.
For example, in array antenna structure, the downside of paster antenna 400 is arranged in the feeder line or transmission line of other antennas
Situation in the case of, if without artificial magnetic conductor, causing the ground connection of paster antenna uneven, so that day may also be caused
The deterioration in characteristics of line, but in the case of using artificial magnetic conductor 500, complicated transmission line and paster antenna will be by institutes
State artificial magnetic conductor and be separated, therefore paster antenna can not interferingly be performed antenna by signal and be operated.
If as described above, were disposed with artificial magnetic conductor between paster antenna and conductive region, even described patch
Interval between chip antenna and conductive region is narrower, can also by artificial magnetic conductor disabling signal interfere, therefore with it is unfavorable
Manually the situation of magnetic conductor is compared, and array antenna can be made in the way of relatively small.
Fig. 3 is the second exemplary plot for showing the structure of unit antenna according to an embodiment of the invention, and its Fig. 3 is to show figure
The figure of 1 A1-A2 line cross-section structures.
If comparing Fig. 3 unit antenna and Fig. 2 unit antenna, there is one with the unit antenna illustrated in Fig. 2
Differently, Fig. 3 unit antenna can include two conductor vias 600-1,600-2 to the situation of conductor via 600.
As one, the multiple respective conductor vias 600 of unit antenna 400-1~400-8 can include electrical connection
In two conductors via 600a, 600b of bipolarity feeder line, to receive and dispatch dual polarized signals.
Here, the advantage of bipolarity feeding is：Transmitting-receiving can be performed both by the signal with horizontal or vertical polarization, because
This can increase data capacity, and cause what polarized wave was deformed in the signal reflected by surrounding environment (especially, metal object)
In the case of also being capable of receiving and transmitting signal.In order to which this signal is applied separately into radiating element of antenna, it is possible to use conductor via and
Directly enter line feed.As one, the bipolarity feed antenna of linear polarization type can use vertical polarization and horizontal polarization to present
Line and constitute, as another example, the dual polarized antenna of circular polarisation type can use left-hand circular polarization (LHCP) and right-handed circular polarization
(RHCP) element and constitute.
Fig. 4 is the structure of the primary antenna paster and sub-antenna paster that show unit antenna according to an embodiment of the invention
Exemplary plot.
Reference picture, the multiple unit antenna 400-1~410-8 can include primary antenna paster 400-1a and sub- day respectively
Line paster 400-1b.
The a part of of the primary antenna paster 400-1a can be connected to institute by shown conductor via 600-1,600-2
State feeder line.
The sub-antenna paster 400-1b is arranged in different layers, and the sub- day from the primary antenna paster 400-1a
Line paster 400-1b can be with the primary antenna paster 400-1a electromagnetic combinations.
The primary antenna paster 400-1a can include first antenna paster PT10 and multiple parasitic patch PT11-
PT14。
As one, first antenna paster PT10 can be connected to described by shown conductor via 600-1,600-2
Feeder line.
As one, the multiple parasitic patch PT11-PT14 can be arranged in phase with the first antenna paster PT10
Same layer, and the multiple parasitic patch PT11-PT14 can be with the first antenna paster PT10 electromagnetic combinations.
The sub-antenna paster 400-1b can include the second antenna patch PT20 and multiple parasitic patch PT21-PT24.
The second antenna patch PT20 can be overlapped and electromagnetic combination with the first antenna paster PT10.
The multiple parasitic patch PT21-PT24 and the second antenna patch PT20 can be arranged in identical layer, and
And the multiple parasitic patch PT21-PT24 can be with the second antenna patch PT20 electromagnetic combinations.
In addition, the primary antenna paster 400-1a and the sub-antenna paster 400-1b can be separated by with default height h,
And height h can be determined that the primary antenna paster 400-1a and the sub-antenna paster 400-1b can be made to pass through that
This electromagnetic combination and the function of performing array antenna.
Fig. 5 is the exemplary plot for showing the structure of artificial magnetic conductor according to an embodiment of the invention.
Reference picture 5, the artificial magnetic conductor 500 can be isolated by the multiple pattern form 510 with default interval d
Formed by network, in default frequency formation resonance, and can also equivalently show as the humorous of inductance and electric capacity
Shake circuit.
The interval d can be determined as follows：The multiple pattern form 510 can be by electromagnetic combination each other
Resonance is carried out in default frequency.
In addition, described in being through with the second layer 120 for the dielectric base plate 100 for forming the artificial magnetic conductor 500
Conductor via 600a, 600b, now, artificial magnetic conductor 500 are not formed in the conductor via.
As one, the resonant frequency as caused by the resonance of the artificial magnetic conductor 500 can be set to and the frequency that communicates
Rate is identical.As one, in the case where communication frequency is 60GHz, the resonant frequency can be set to 60GHz.
As described above, to with for the signal of the resonant frequency identical frequency, by the artificial magnetic conductor
500 back wave is identical with the phase of incidence wave, so that the destructive interference for the signal that incident signal can not be reflected.
That is, described artificial magnetic conductor 500 can block the phase between the paster antenna 400 and the conductive region 200
Disappear interference.
As one, as shown in figure 5, the pattern form of the artificial magnetic conductor 500 can be quadrangle form, Ke Yiwei
Triangular shaped, or round-shaped, it is not necessarily limited to specific shape.
If here, by periodically repeatedly in the way of arrange multiple pattern forms, and utilize PEC (perfect electric conductors：
Perfect Electric Conductor) and PMC (perfect magnetic conductors：Perfect Magnetic Conductor) border
(boundary) set, then can form the network as described above in specific frequency formation resonance.It is right as one
For the pattern of the artificial magnetic conductor 500, by periodically, suitably arranging the grid short more than the wavelength of the frequency
Specific structure of the interval (below 1/10 wavelength), can obtain the characteristic of uniform dielectric in the viewpoint of macroscopic view.
Fig. 6 (a), (b) is the operating instruction figure for showing artificial magnetic conductor according to an embodiment of the invention.
Fig. 6 (a) is haveed the shortcomings that as above in the case where array antenna does not include artificial magnetic conductor：In incidence
When the phase of signal and the signal of reflection is unsatisfactory for constructive interference condition, due to the phase offset in incident and reflection process
(Phase shift), as one, the phase of pi/2 (90 degree) occurs when inciding conductive region 200 from paster antenna 400
Skew, and occur the phase offset of pi/2 (90 degree) when reflexing to paster antenna 400 from conductive region 200, so as to will have
There is the difference of overall 180 degree, as a result, will form the phase difference of 180 degree between incident signal and the signal of reflection, therefore by
Interference between incoming signal and reflected signal and occur the cancellation decay of signal.
As described above, in the case of not comprising artificial magnetic conductor, to meet constructive interference condition, paster antenna and conductor
Interval between region need to maintain the interval of λ/4, and therefore, it is difficult to be fabricated to compact structure.
Fig. 6 (b) is in the case where array antenna includes artificial magnetic conductor, as described above, by artificial magnetic conductor
In the case of resonant frequency and communication frequency identical, not for the special bar at the interval between paster antenna and conductive region
Part, even and if making side of the interval less than λ/4 between the artificial magnetic conductor 500 on conductive region 400 and paster antenna 400
In the case that formula makes, also will not occur phase offset when inciding conductive region 200 from paster antenna 400, from conductor
When reflexing to paster antenna 400 phase offset will not also occur for region 200, as a result, incident signal and the phase of the signal of reflection
Position becomes identical, therefore in the absence of the phase difference between two signals, therefore will not occur the phase of the signal caused by phase difference
Disappear interference, accordingly, the decay of signal caused by destructive interference can be blocked possible.
As described above, in the case where including artificial magnetic conductor according to the array antenna of one embodiment of the invention, without
To realize that constructive interference makes the interval of distance maintaining λ/4 between paster antenna and conductive region, can by paster antenna and
Interval between conductive region be made as compared to λ/4 closer to, therefore can realize miniaturization make.
Fig. 7 is the curve for showing the reflected phase characteristics by frequency of artificial magnetic conductor according to an embodiment of the invention
Figure.
As one, Fig. 7 is shown for resonant frequency caused by the resonance as artificial magnetic conductor 500 to be set as and lead to
Believe the simulation curve figure of the situation of frequency identical frequency.
With reference to curve map as shown in Figure 7, it represents the reflected phase characteristics based on frequency of artificial magnetic conductor, and reference should
Curve map is understood, under 60GHz, and the phase difference between incoming signal and reflected signal is 0 degree.
Fig. 8 is the exemplary plot for showing the surface current of artificial magnetic conductor according to an embodiment of the invention.
Electric current in reference picture 8, the paster antenna 400 on the top in dielectric base plate 100 and by the artificial of bottom
In the case of the directional spreding that the electric current of magnetic conductor 500 is risen with size mutually, not only without destructive interference, phase is also caused mutually
Long interference effect, therefore the wave radiation of paster antenna 400 will not be hindered, and can occur the effect of radiation efficiency rising.
In the case, if utilizing artificial magnetic conductor (AMC：Artificial Magnetic Conductor) 500 and
Paster antenna 400 is arranged in the way of the conductive region with the feeder line comprising its underpart or transmission line is separated by, even if then
The transmission line of complicated structure is located at the bottom of paster antenna, and the performance of paster antenna will not also be deteriorated.
In addition, as shown in figure 1, for the array according to one embodiment of the invention using artificial magnetic conductor (AMC) 500
8 unit antenna 400-1~respective gains of 400-8 of antenna 400 and efficiency (present invention) do not use artificial magnetic conductance with being directed to
The gain of the existing array antenna of body (AMC) 500 and efficiency (existing) are contrasted into as shown in table 1 below.
Here, 8 unit antenna 400-1~400-8 are referred to as into paster 1, paster 2, paster 3, paster in order
4th, paster 5, paster 6, paster 7 and paster 8.
[table 1]
With reference to the table 1, it can confirm that：The array antenna of artificial magnetic conductor is utilized according to one embodiment of the invention
Situation compares the situation of existing array antenna, improves about 0.5~2.5dBI gain, and its efficiency is also increased about
More than 10%.
Therefore, for the situation using the array antenna of artificial magnetic conductor, it is possible to achieve the making more minimized, because
This can improve its gain and efficiency.
According to embodiments of the invention as described above, it is possible to use the reflected phase of artificial magnetic conductor and incident phase phase
With characteristic and make paster antenna and feeder line each other without influence power, so as to improve performance, and can prevent can be existing
The performance degradation that small array antenna is likely to occur, and then may insure of a relatively high gain and efficiency, especially with can
To realize the advantage of miniaturization, and if this is used into portable electric appts, then it can expect to realize highly efficient
The advantage of wireless communication system.
Claims (14)
1. a kind of array antenna, including：
Dielectric base plate, first layer, the second layer with stacking, third layer；
Conductive region, ground plane and feeder line comprising the first layer for being arranged in the dielectric base plate；
Paster antenna, is arranged in the third layer of the dielectric base plate, is arranged with multiple unit antennas, a part for unit antenna
It is connected by conductor via with the feeder line；And
Artificial magnetic conductor, is arranged in the second layer of the dielectric base plate, block the paster antenna and the conductive region it
Between interference,
Moreover, the artificial magnetic conductor has the grid that multiple pattern forms are separated by and repeatedly arranged with default interval each other
Structure, with default frequency formation resonance.
2. array antenna as claimed in claim 1, wherein,
The resonant frequency formed in the artificial magnetic conductor by the artificial magnetic conductor is identical with communication frequency.
3. array antenna as claimed in claim 1, wherein,
The artificial magnetic conductor be arranged in it is in the second layer of the dielectric base plate, overlapped respectively with the multiple unit antenna
Region.
4. array antenna as claimed in claim 1, wherein,
The multiple respective conductor via of unit antenna includes two conductor vias for being arranged in mutually different position, to receive
Send out dual polarized signals.
5. array antenna as claimed in claim 1, wherein,
The multiple unit antenna includes respectively：
Primary antenna paster a, part is connected to the feeder line by the conductor via；And
Sub-antenna paster, is arranged in the layers different from the primary antenna paster, and with the primary antenna paster electromagnetic combination.
6. array antenna as claimed in claim 5, wherein,
The primary antenna paster includes：
First antenna paster, the feeder line is connected to by shown conductor via；
Multiple parasitic patch, be arranged in the first antenna paster identical layer, and with the first antenna paster electromagnetism knot
Close.
7. array antenna as claimed in claim 6, wherein,
The sub-antenna paster includes：
Second antenna patch, is overlapped and electromagnetic combination with the first antenna paster；
Multiple parasitic patch, be arranged in the second antenna patch identical layer, and with the second antenna patch electromagnetic combination.
8. a kind of array antenna, including：
Dielectric base plate, first layer, the second layer with stacking, third layer；
Conductive region, ground plane and feeder line comprising the first layer for being arranged in the dielectric base plate；
Paster antenna, is arranged in the third layer of the dielectric base plate, is arranged with multiple unit antennas, a part for unit antenna
It is connected by conductor via with the feeder line；And
Artificial magnetic conductor, in the second layer of the dielectric base plate, is arranged between the ground plane and the paster antenna,
Moreover, the artificial magnetic conductor has the network that multiple pattern forms are separated by and arranged with default interval each other,
Artificial magnetic conductor with the network has and the resonance as caused by the resonance in default frequency formation resonance
The incidence wave of frequency identical frequency is identical with the phase of back wave.
9. array antenna as claimed in claim 8, wherein,
The artificial magnetic conductor setting and resonant frequency described in communication frequency identical.
10. array antenna as claimed in claim 8, wherein,
The artificial magnetic conductor be arranged in it is in the second layer of the dielectric base plate, overlapped respectively with the multiple unit antenna
Region.
11. array antenna as claimed in claim 8, wherein,
The multiple respective conductor via of unit antenna includes two conductor vias for being arranged in mutually different position, to receive
Send out dual polarized signals.
12. array antenna as claimed in claim 8, wherein,
The multiple unit antenna includes respectively：Primary antenna paster a, part is connected to the feedback by the conductor via
Line；And
Sub-antenna paster, is arranged in the layers different from the primary antenna paster, with the primary antenna paster electromagnetic combination.
13. array antenna as claimed in claim 12, wherein,
The primary antenna paster includes：
First antenna paster, the feeder line is connected to by shown conductor via；
Multiple parasitic patch, be arranged in the first antenna paster identical layer, and with the first antenna paster electromagnetism knot
Close.
14. array antenna as claimed in claim 13, wherein,
The sub-antenna paster includes：
Second antenna patch, is overlapped and electromagnetic combination with the first antenna paster；
Multiple parasitic patch, be arranged in the second antenna patch identical layer, and with the second antenna patch electromagnetic combination.
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| CN112201965A (en) | 2021-01-08 |
| CN107046183B (en) | 2020-10-30 |
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