CN106299632A - Artificial magnetic conductor construction unit, artificial magnetic conductor structure and corresponding polarization plane antenna - Google Patents
- ️Wed Jan 04 2017
Info
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Publication number
- CN106299632A CN106299632A CN201510241020.2A CN201510241020A CN106299632A CN 106299632 A CN106299632 A CN 106299632A CN 201510241020 A CN201510241020 A CN 201510241020A CN 106299632 A CN106299632 A CN 106299632A Authority
- CN
- China Prior art keywords
- magnetic conductor
- artificial magnetic
- folding line
- construction unit
- polarization plane Prior art date
- 2015-05-13 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a kind of artificial magnetic conductor construction unit, artificial magnetic conductor structure and corresponding polarization plane antenna, wherein artificial magnetic conductor construction unit includes metal ground plate, metallic vias, medium substrate and cycle paster, described cycle paster etches formation on described medium substrate, and described cycle paster is made up of rectangle frame and folding line, the two ends of described folding line electrically connect with described rectangle frame in described rectangle frame, and described folding line is electrically connected with described metal ground plate by described metallic vias, described metallic vias electrically connects with described folding line between the described two ends of described folding line.
Description
Technical field
The present invention relates to the Meta Materials field of electromagnetic field technology, particularly relate to a kind of artificial magnetic conductor construction unit, Artificial magnetic conductor structure and corresponding polarization plane antenna.
Background technology
Soft and hard surfaces, electromagnetic bandgap structure, LHM and artificial magnetic conductor (Artificial Magnetic Conductor, AMC) etc. noun more and more occur in electromagnetic field technology field.These structures or Material is respectively provided with in nature and does not exist but valuable electromagnetic property, therefore these structures or material Also referred to as Meta Materials.And the peculiar electromagnetic property that they are had is realizing novel high-performance antenna Powerful advantage is demonstrated with microwave device field.
Owing to perfect electric conductor surface need to meet the boundary condition that tangential electric field is zero, so when a plane wave enters When being mapped to perfect electric conductor surface, between electric field and the electric field of incidence wave of echo, there is the phase contrast of 180 degree. This make by metal be used as antenna reflecting plate with strengthen half space radiation time, between antenna and reflecting plate Distance is required to be about quarter-wave.Otherwise, the anti-phase electric field of echo can make the radiance of antenna big Width declines.Which increases the size of antenna, bring inconvenience in actual applications.
From the duality principle in Theory of Electromagnetic Field, when plane wave incidence to perfect magnetic conductor surface, Incidence wave is homophase with the electric field of echo.Therefore, if with perfect magnetic conductor (Perfect Electronic Conductor, PEC) make the reflecting plate of antenna, it is possible to realize novel low profile antenna.But, reason Think that magnetic conductor is non-existent in nature.
In order to realize the electromagnetic property of perfect magnetic conductor, there has been proposed artificial magnetic conductor structure.This structure There is the perfect magnetic conductor same phase reflection characteristic to plane wave equally；Currently, with respect to artificial magnetic conductor structure Research a lot, but its broadband character bottleneck that always research artificial magnetic conductor structure cannot be gone beyond.
Summary of the invention
In view of this, the technical problem to be solved is exactly artificial magnetic conductor structure of the prior art Broadband character cannot be provided.
Therefore, it is an object of the present invention to provide a kind of artificial magnetic conductor construction unit, described artificial magnetic Conductor structure unit includes metal ground plate, metallic vias, medium substrate and cycle paster, and the described cycle pastes Sheet etches formation on described medium substrate, and described cycle paster is made up of rectangle frame and folding line, institute The two ends stating folding line electrically connect with described rectangle frame in described rectangle frame, and described folding line passes through institute Stating metallic vias to electrically connect with described metal ground plate, described metallic vias exists with the junction point of described folding line Between the described two ends of described folding line.
It it is air between described metal ground plate and described medium substrate.
The a length of 21mm of described metallic vias, a diameter of 1.5mm.
Further, another object of the present invention is to provide a kind of artificial magnetic conductor structure, on multiple The artificial magnetic conductor construction unit stated, the cycle paster of the plurality of artificial magnetic conductor construction unit is arranged in institute State on medium substrate, and described folding line each in the plurality of artificial magnetic conductor construction unit passes through institute State metallic vias to electrically connect with described metal ground plate.
Wherein, described cycle paster periodic arrangement on described medium substrate.
Wherein, between described metal ground plate and described medium substrate it is air.
Wherein, a length of 21mm of described metallic vias, a diameter of 1.5mm.
Further, a further object of the present invention is to provide a kind of polarization plane antenna, this polarization plane sky Above-mentioned artificial magnetic conductor structure is used as reflecting plate by line.
Wherein, the distance between antenna oscillator and the described artificial magnetic conductor structure of described polarization plane antenna is 9mm.Wherein, the polarization type of described polarization plane antenna is one below: Circular Polarisation, linear polarization, Dual polarization.
It is capable of following beneficial effect: keeping artificial magnetic conductor by technical scheme provided by the present invention On the premise of the simple structure of structure, provide relatively wide bandwidth of operation for polarization plane antenna, simultaneously Can significantly reduce the height of polarization plane antenna, i.e. there is low section.
Accompanying drawing explanation
The present invention is described in detail, in the accompanying drawings in conjunction with the embodiments and with reference to accompanying drawing:
Fig. 1 is the signal of a construction unit of the artificial magnetic conductor structure according to one embodiment of the present of invention Figure；
Fig. 2 is the schematic diagram of the artificial magnetic conductor structure according to one embodiment of the present of invention；
Fig. 3 is the floor map of the polarization plane antenna using the artificial magnetic conductor structure according to the present invention；
The schematic cross-section of Fig. 4 a polarization plane of the prior art antenna；
Fig. 4 b is the schematic cross-section of the polarization plane antenna using the artificial magnetic conductor structure according to the present invention；
Fig. 5 is the curve of the S parameter of the plan flat plane antenna using the artificial magnetic conductor structure according to the present invention Figure.
Detailed description of the invention
The schematic diagram of one construction unit of artificial magnetic conductor structure disclosed in this invention is as shown in fig. 1. It can be seen that artificial magnetic conductor structure construction unit includes: cycle paster 1, metallic vias 2, gold Belong to earth plate 3, medium substrate 4.Further, cycle paster 1 includes rectangle frame 5 and folding line 6.
Cycle paster 1 is formed on medium substrate 4 with etching mode.The two of the folding line 6 of cycle paster 1 End electrically connects with rectangle frame 5 in rectangle frame 5.Folding line 6 is electrically connected to metal by metallic vias 2 and connects On floor 3, metallic vias 2 electrically connects with folding line 6 between the two ends of folding line 6.More preferably, gold The junction point belonging to via 2 and folding line 6 is positioned at the midpoint of folding line 6.Metallic vias 2 makes cycle paster LC parallel equivalent circuit, wherein, the rectangle frame 5 of cycle paster 1 is formed between 1 and metal ground plate 3 Can be equivalent to capacitor, folding line 6 can be equivalent to inducer, and metallic vias 2 can be equivalent to Inducer.Therefore, on the premise of the length ensureing folding line 6, folding line 6 can use arbitrary shape. Rectangle frame 5 is the Q-RING part of Lycoperdon polymorphum Vitt shown in Fig. 1.
The medium filled between metal ground plate 3 and medium substrate 4 can be air.It addition, metallic ground It can also be vacuum between plate 3 and medium substrate 4.
Frequency and equivalent LC parallel equivalent circuit when the electromagnetic wave incided in artificial magnetic conductor structure Resonant frequency close the most equal time, artificial magnetic conductor structural table reveals high-impedance behavior.Now, incidence wave It is about 0 degree with the phase contrast (namely reflected phase) of its echo.When reflected phase is 0 degree, Artificial magnetic conductor presents the characteristic of perfect magnetic conductor.Therefore, the polarization plane of this artificial magnetic conductor structure is used The relative bandwidth of antenna is inversely proportional to its equivalent capacity, is directly proportional to equivalent inductance.Therefore, at mid frequency In the case of constant, the equivalent capacity using the polarization plane antenna of this artificial magnetic conductor structure is the biggest, relatively Bandwidth is the narrowest；Equivalent inductance is the biggest, and relative bandwidth is the widest.
Fig. 2 shows artificial magnetic conductor structure according to an embodiment of the invention.Can from Fig. 2 Find out, in the artificial magnetic conductor structure of the present invention, on the premise of suppression cross polarization, artificial magnetic conductor The cycle paster 1 of structure can use any arrangement mode, and more preferably arranges in periodic regular mode. In fig. 2, the surface of this artificial magnetic conductor structure being disposed with the cycle paster 1 of 9 row 9 row, the cycle pastes The arragement direction of the folding line 6 of sheet 1 can be obtained by simulation result.And it can be seen that cycle paster 1 might not fill up medium substrate 4, but vacates the center of medium substrate 4.Blank parts therein is permissible It is easy to be fed through to antenna oscillator by coaxial line, and does not interferes with the overall performance of polarization plane antenna.
Fig. 3 shows the polarization plane antenna using the artificial magnetic conductor structure according to the present invention.Can see Arriving, polarization plane antenna includes antenna oscillator and is positioned at the artificial magnetic conductor structure below antenna oscillator.My god Linear oscillator includes antenna medium substrates 7, lower surface metal paster 8 and upper surface metal patch 9.Lower surface gold Belong to the type of the polarization plane antenna that paster 8 and upper surface metal patch 9 are determined can be Circular Polarisation, Linear polarization or dual polarization etc..It is positioned at the artificial magnetic conductor structure below antenna oscillator and is used as reflecting plate.
It is recognised that use the opposite band of the polarization plane antenna of artificial magnetic conductor structure of the present invention from Fig. 1 Width is inversely proportional to its equivalent capacity, is directly proportional to equivalent inductance.
Because form plate condenser between rectangle frame 5 and metal ground plate 3, so the area of rectangle frame 5 Change can cause the change of relative bandwidth of artificial magnetic conductor structure.The area of rectangle frame 5 is the biggest, then Its equivalent capacity is the biggest, thus the relative bandwidth of artificial magnetic conductor structure is the narrowest.
Relative Jie of the medium (or vacuum) between medium substrate 4, metal ground plate 3 and medium substrate 4 The change of electric constant can cause the change of the relative bandwidth of artificial magnetic conductor structure.Medium substrate 4 and/or gold The relative dielectric constant of the medium between genus earth plate 3 and medium substrate 4 is the biggest, then the equivalence of rectangle frame 5 The equivalent capacity of capacitor is the biggest, so that the relative bandwidth of artificial magnetic conductor structure is the narrowest.In addition, The increase of the relative dielectric constant of the medium between medium substrate 4 and/or metal ground plate 3 and medium substrate 4, The mid frequency also resulting in antenna is the lowest, and relative bandwidth is the narrowest, the gain reduction of polarization plane antenna.
Because folding line 6 can be equivalent to inducer, so the change of the length of folding line 6 and/or width can To cause the change of the relative bandwidth of artificial magnetic conductor structure.The length of folding line 6 is the biggest, width is the least, Then its equivalent inductance is the biggest, thus the relative bandwidth of artificial magnetic conductor structure is the widest.
Because metallic vias 2 can be equivalent to inducer, so the changing of the length of metallic vias 2 and/or width Change can cause the change of the relative bandwidth of artificial magnetic conductor structure.The length of metallic vias 2 is the biggest, diameter The least, then its equivalent inductance is the biggest, thus the relative bandwidth of artificial magnetic conductor structure is the widest.But should note Meaning, the length of metallic vias 2 determines the height of artificial magnetic conductor structure, i.e. metal to a certain extent and connects Distance between floor 3 and medium substrate 4, thus have influence on the artificial magnetic conductor structure of the use present invention The height of polarization plane antenna.In addition, the too small manufacture difficulty that also results in of the diameter of metallic vias 2 increases Greatly, and antenna cross polarization phenomenon strengthen.Accordingly, it would be desirable to length and diameter to metallic vias 2 are entered Row rationally selects, and specifically chosen can be obtained by emulation.
The size of medium substrate 4 is relevant with the size of cycle paster 1 and periodicity.The size of cycle paster 1 The biggest, then the mid frequency of polarization plane antenna is the lowest, and relative bandwidth is the narrowest；The periodicity of cycle paster 1 The biggest, then the directivity of polarization plane antenna is the best, but the overall dimensions of polarization plane antenna can be made to increase. In the file of the application, cycle paster 1 uses 90 degree of rotational symmetric modes to arrange, but can also be Adopt on the premise of suppression cross polarization and arrange in other ways.But it is noted that using some other During arrangement, the cross-polarization performance of polarization plane antenna is likely deteriorated.
Fig. 4 a and Fig. 4 b is respectively polarization plane antenna of the prior art and uses the people according to the present invention The polarization plane antenna of work magnetic conductor structure.By the contrast of Fig. 4 a and Fig. 4 b it will be seen that use this The polarization plane antenna of bright artificial magnetic conductor structure and the polarization plane of use metallic reflection plate in prior art Antenna is compared, and antenna height significantly reduces.Medium between antenna oscillator and artificial magnetic conductor structure can be Air.Antenna oscillator can be supported by the column 10 of four Angle Position being positioned at antenna oscillator.
Can be obtained by emulation, in a preferred embodiment of the invention, metallic vias 2 a length of 21mm, a diameter of 1.5mm.Further, medium substrate 4 is Rogers R04003 substrate, its size For 360mm × 360mm × 0.76mm, and relative dielectric constant is 3.48, and Dielectric loss tangent value is 0.0027.Further, the size of cycle paster 1 is 38mm × 38mm, Cycle Length (the most same to a line Or with the distance between the center of two cycle pasters 1 adjacent in string) it is 40mm.Further, The a length of 20mm of inner edge of rectangle frame 5, a length of about 108mm of folding line 6, width is 0.6mm, It is 1.5mm with the width of 2 chain parts of metallic vias.
From figure 5 it can be seen that the people of the parameter in the use above preferred embodiment that will be obtained by emulation The S of the polarization plane antenna of the S parameter of the polarization plane antenna of work magnetic conductor structure and use perfect magnetic conductor Parameter contrasts.Generally, metal flat can be regarded as perfect magnetic conductor.In Fig. 5, │ S11 │ Curve be whether one of the performance indications of antenna of mobile communication base station below the straight line of-15dB.
From fig. 5, it is seen that the joint of │ S11 │ curve and-15dB straight line in frequency is respectively At 0.69GHz and 0.96GHz, and it is positioned between 0.69GHz and 0.96GHz under-15dB straight line Side.Such that it is able to learn, for mid frequency in intended application (such as, GSM 800 of about 825MHz Or in CDMA850), use-the 15dB of the polarization plane antenna of the artificial magnetic conductor structure of the present invention Carry a width of 690MHz-960MHz.Such that it is able to obtain ,-15dB the relative bandwidth of above polarization plane antenna It is about 33%.In the prior art, use metal as the-15dB phase of the polarization plane antenna of reflecting plate Bandwidth is difficult to more than 30%.
Understand through emulation, the theoretical value of the distance between the upper surface of antenna oscillator and artificial magnetic conductor structure It is zero.But when distance between the two is the least, mutual coupling phenomenon between the two is the most serious.So After optimizing, it is recognised that distance between the two is more preferably 9mm, the height of artificial magnetic conductor structure Degree is more preferably 21mm, and therefore the height of polarization plane antenna is of about 30mm.
And for prior art uses the polarization plane antenna of metallic reflection plate, due to antenna oscillator and reflection Distance between plate should be 1/4th of mid frequency corresponding wavelength, so for the center of 820MHz For frequency, the distance between antenna oscillator and reflecting plate should be about 95mm.
It can be seen that when using identical mid frequency, use the pole of the artificial magnetic conductor structure of the present invention The whole height of change flat plane antenna is far smaller than in prior art the polarization plane antenna of use metallic reflection plate Highly.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the protection model of the present invention Enclose.
Claims (10)
1. an artificial magnetic conductor construction unit, it is characterised in that described artificial magnetic conductor construction unit includes Metal ground plate, metallic vias, medium substrate and cycle paster, described cycle paster is at described medium substrate Upper etching is formed, and described cycle paster is made up of rectangle frame and folding line, and the two ends of described folding line exist Electrically connects with described rectangle frame in described rectangle frame, and described folding line by described metallic vias with described Metal ground plate electrically connects, and the junction point of described metallic vias and described folding line is described in described folding line Between two ends.
Artificial magnetic conductor construction unit the most according to claim 1, it is characterised in that described metal connects It it is air between floor and described medium substrate.
Artificial magnetic conductor construction unit the most according to claim 1 and 2, it is characterised in that described gold Belong to a length of 21mm, a diameter of 1.5mm of via.
4. an artificial magnetic conductor structure, it is characterised in that described artificial magnetic conductor structure includes multiple basis Artificial magnetic conductor construction unit described in claim 1, the week of the plurality of artificial magnetic conductor construction unit Phase paster is arranged on described medium substrate, and institute each in the plurality of artificial magnetic conductor construction unit State folding line to be electrically connected with described metal ground plate by described metallic vias.
Artificial magnetic conductor structure the most according to claim 4, it is characterised in that described cycle paster exists Periodic arrangement on described medium substrate.
6. according to the artificial magnetic conductor structure described in claim 4 or 5, it is characterised in that described metal connects It it is air between floor and described medium substrate.
Artificial magnetic conductor structure the most according to claim 6, it is characterised in that described metallic vias A length of 21mm, a diameter of 1.5mm.
8. a polarization plane antenna, it is characterised in that described polarization plane antenna uses according to claim 4 to 7 arbitrary described artificial magnetic conductor structures are as reflecting plate.
Polarization plane antenna the most according to claim 8, it is characterised in that described polarization plane antenna Antenna oscillator and described artificial magnetic conductor structure between distance be 9mm.
Polarization plane antenna the most according to claim 8 or claim 9, it is characterised in that described polarization is put down The polarization type of surface antenna is one below: Circular Polarisation, linear polarization, dual polarization.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510241020.2A CN106299632A (en) | 2015-05-13 | 2015-05-13 | Artificial magnetic conductor construction unit, artificial magnetic conductor structure and corresponding polarization plane antenna |
| PCT/CN2016/071539 WO2016180052A1 (en) | 2015-05-13 | 2016-01-20 | Artificial magnetic conductor structural unit, artificial magnetic conductor structure and corresponding polarized planar antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510241020.2A CN106299632A (en) | 2015-05-13 | 2015-05-13 | Artificial magnetic conductor construction unit, artificial magnetic conductor structure and corresponding polarization plane antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106299632A true CN106299632A (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510241020.2A Withdrawn CN106299632A (en) | 2015-05-13 | 2015-05-13 | Artificial magnetic conductor construction unit, artificial magnetic conductor structure and corresponding polarization plane antenna |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106299632A (en) |
| WO (1) | WO2016180052A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310617A (en) * | 2019-07-24 | 2021-02-02 | 台达电子工业股份有限公司 | Dual-polarized antenna |
| CN113488776A (en) * | 2021-05-07 | 2021-10-08 | 维沃移动通信有限公司 | Super surface structure |
| CN114843725A (en) * | 2022-05-16 | 2022-08-02 | 江苏电子信息职业学院 | Ultra-wideband large-angle band-stop type frequency selection surface |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953171B (en) * | 2017-05-02 | 2023-05-30 | 深圳鲲鹏无限科技有限公司 | Antenna and wireless router |
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- 2015-05-13 CN CN201510241020.2A patent/CN106299632A/en not_active Withdrawn
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- 2016-01-20 WO PCT/CN2016/071539 patent/WO2016180052A1/en active Application Filing
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| US8451189B1 (en) * | 2009-04-15 | 2013-05-28 | Herbert U. Fluhler | Ultra-wide band (UWB) artificial magnetic conductor (AMC) metamaterials for electrically thin antennas and arrays |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310617A (en) * | 2019-07-24 | 2021-02-02 | 台达电子工业股份有限公司 | Dual-polarized antenna |
| CN112310617B (en) * | 2019-07-24 | 2024-02-23 | 台达电子工业股份有限公司 | Dual polarized antenna |
| CN113488776A (en) * | 2021-05-07 | 2021-10-08 | 维沃移动通信有限公司 | Super surface structure |
| CN114843725A (en) * | 2022-05-16 | 2022-08-02 | 江苏电子信息职业学院 | Ultra-wideband large-angle band-stop type frequency selection surface |
| CN114843725B (en) * | 2022-05-16 | 2023-11-03 | 江苏电子信息职业学院 | Ultra-wideband wide-angle band-stop type frequency selective surface |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016180052A1 (en) | 2016-11-17 |
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| Date | Code | Title | Description |
|---|---|---|---|
| 2017-01-04 | C06 | Publication | |
| 2017-01-04 | PB01 | Publication | |
| 2017-12-19 | SE01 | Entry into force of request for substantive examination | |
| 2017-12-19 | SE01 | Entry into force of request for substantive examination | |
| 2019-04-19 | WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170104 |
| 2019-04-19 | WW01 | Invention patent application withdrawn after publication |