CN105552569A - Ultra-thin transmission gradient super-surface-based polarization separator - Google Patents
Ultra-thin transmission gradient super-surface-based polarization separator Download PDFInfo
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- CN105552569A CN105552569A CN201510973707.5A CN201510973707A CN105552569A CN 105552569 A CN105552569 A CN 105552569A CN 201510973707 A CN201510973707 A CN 201510973707A CN 105552569 A CN105552569 A CN 105552569A
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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
- H01Q15/24—Polarising devices; Polarisation filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
-
- 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
- H01Q15/24—Polarising devices; Polarisation filters
- H01Q15/242—Polarisation converters
Abstract
The invention discloses an ultra-thin transmission gradient super-surface-based polarization separator, which comprises a bottom plate, wherein the bottom plate is provided with a plurality of matrix structure-based 6*6 super-surface cell arrays; each super-surface cell is a three-layer patch cascade coupling-based super-surface cell; each super-surface unit comprises a first dielectric plate and a second dielectric plate; a first cascade metal patch is arranged on the upper surface of the first dielectric plate; a second cascade metal patch is arranged between the lower surface of the first dielectric plate and the upper surface of the second dielectric plate; a third cascade metal patch is arranged on the lower surface of the second dielectric plate; the first cascade metal patch, the second cascade metal patch and the third cascade metal patch are the same in size and thickness; and the size of the first cascade metal patch is determined according to realized transmission phase. By the technical scheme disclosed by the invention, the polarization separation degree is improved; and meanwhile, the thickness of the polarization separator is reduced.
Description
Technical field
The invention belongs to microwave technical field, particularly relate to a kind of based on the super surperficial polarization separator of ultra-thin Transmission Gradient.
Background technology
The electromagnetic amplitude of current manipulation, phase place and polarization characteristic have become international advanced subject.Polarization separator, as the important devices that polarization of ele controls, has important application prospect in fields such as Communication Engineering, radar system and front control systems.
Realization for polarization separator mainly contains 5 kinds.On conventional art, the natural birefringece crystal of main employing realizes, and based on the birefringent characteristic of crystal, can form different electromagnetism corresponding for not like-polarized electromagnetic wave; Last century Mo, find along with Meta Materials and be widely used in microwave components design, adopting two-dimensional photon crystal structure to make the design of polarization separator break away from dependence to nature material, thus the design of difference in functionality can be carried out according to the wish of scientist; The introducing of active device, as the use of semiconductor device, photonic integrated circuits, substantially reduces the size of polarization separator; In recent years, along with the development of Meta Materials technology, the especially proposition of graded index Meta Materials, the polarization separator adopting anisotropy Meta Materials, two-dimensional graded index Meta Materials to design achieves the independent operation to different polarized electromagnetic wave.
There is following defect in above polarization separator:
Adopt the polarization separator of birefringece crystal design must rely on natural birefringece crystal to realize, and for electromagnetic wave incident angle and sensitivity thereof; Adopt the polarization separator complex structure of photonic crystal designs, electromagnetic energy loss is comparatively large, simultaneously polarization separation limited angle; The polarization separator of employing semiconductor device, integrated circuit (IC) design introduces active element, expensive, and active element destroys the polarization autonomous behavior of two dimensions simultaneously, and polarization separation degree is decreased; Adopt the polarization separator of anisotropy Meta Materials and the design of two-dimensional graded index Meta Materials, mainly realize wave beam based on optical path difference and control, device is heavier, and polarization separation degree is not high simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is, proposes a kind of confession based on the super surperficial polarization separator of ultra-thin Transmission Gradient, improves polarization separation degree, reduce the thickness of polarization separator simultaneously.
For solving the problem, the present invention adopts following technical scheme:
A kind ofly to comprise based on the super surperficial polarization separator of ultra-thin Transmission Gradient: base plate, described base plate be provided with based on matrix structure multiple 6 × 6 surpass surface cell array, each described super surface cell is the super surface cell based on three laminating sheet cascade coupled, described super surface cell comprises: first medium plate and second medium plate, the first cascade metal patch is provided with at the upper surface of described first medium plate, the second cascade metal patch is provided with between the lower surface and the upper surface of second medium plate of described first medium plate, third level connection metal patch is provided with at the lower surface of second medium plate, described first cascade metal patch, second cascade metal patch, the size of third level connection metal patch is identical with thickness, described first cascade metal patch size is determined according to the transmission phase place realized.
As preferably, first medium plate and second medium plate all adopt thickness to be 1.5mm, and dielectric constant is the F4B dielectric-slab of 2.65.
As preferably, each super surface cell cycle is Px × Py=11mm × 11mm.
As preferably, the thickness of described first cascade metal patch is 0.018mm.
Beneficial effect of the present invention is as follows:
1. adopt two-dimensional ultrathin gradient to surpass surface cell, achieve transmission phase 0 ~ 360 ° of consecutive variations, compared with adopting optical path difference control phase with tradition, reduce the thickness of super surface cell greatly, and the unit of same thickness can realize different PHASE DISTRIBUTION;
2. utilize the polarization autonomous behavior of super surface cell, under different polarity electromagnetic wave excitation, achieve the independent operation of electromagnetic property;
3. based on the polarization separator that super surface cell designs, achieve the independent operation of electromagnetic beam, when adopting parallel polarization wave excitation, wave beam is the wave beam deviation of 27 ° at xoz Planar realization, when adopting perpendicular polarization wave excitation, wave beam is the wave beam deviation of-27 ° at yoz Planar realization;
4. due to the polarization autonomous behavior of super surface cell, achieve good wave beam stalling characteristic, when adopting 45 ° of polarized wave excitations, the separation degree of two kinds of polarized waves reaches 18dB;
5., because super surface cell adopts disresonance meta structure, the transmission phase of different size unit has consistency at certain bandwidth range, and the polarization separator bandwidth of development is relatively wide, reaches 600MHz.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the unusual Diffraction dispersion of two-dimentional TPGMs based on the incidence of mixed polarization ripple, wherein, Fig. 1 (a) is the incident TPGM1 of mixed polarization ripple, Fig. 1 (b) is the incident TPGM2 of mixed polarization ripple, Fig. 1 (c) for mixed polarization ripple incident TPGM3, Fig. 1 (d) be the incident TPGM4 of mixed polarization ripple;
Fig. 2 is the topological mechanism of super surface cell and the schematic diagram of emulation setting, wherein, Fig. 2 (a) is the vertical view of super surface cell and the schematic diagram of geometric parameter, Fig. 2 (b) is that Fig. 2 (c) is the structural representation of super surface cell for the // schematic diagram that arranges with the emulation of ⊥ polarized wave;
Fig. 3 is the transmission coefficient of the super surface cell of simulation calculation and the schematic diagram of transmission phase place, and wherein, Fig. 3 (a) is d
x=d
yduring=8.28mm, the transmission coefficient of super surface cell and the schematic diagram of phase place, Fig. 3 (b) is for surpassing the transmission amplitude of surface cell and the schematic diagram of phase place when x direction exists 60 ° of phase gradients and y direction existence-60 ° of phase gradients;
Fig. 4 is the schematic diagram of the transmission phase response surpassing surface cell based on not same polarization field wave, and wherein, Fig. 4 (a) is the phase response schematic diagram for // polarized wave, and Fig. 4 (b) is the phase response schematic diagram for ⊥ polarized wave;
Fig. 5 is the two-dimentional TPGM structural representation of design and the electromagnetic response schematic diagram under not same polarization excitation, and wherein, Fig. 5 (a) is two-dimentional TPGM structural representation; Fig. 5 (b), Fig. 5 (c) are respectively the electromagnetic response schematic diagram of x, y direction TPGM under not same polarization excitation;
Fig. 6 is the structural representation of polarization separator of the present invention and the processed sample schematic diagram of polarization separator, and wherein, Fig. 6 (a) is the vertical view surpassing surface cell based on TPGM, and Fig. 6 (b) is the end view surpassing surface cell based on TPGM; The schematic diagram of the processed sample that Fig. 6 (c) is polarization separator;
Fig. 7 is polarization separator schematic diagram and the matching test schematic diagram of assembling, wherein, Fig. 7 (a) is matching test schematic diagram, Fig. 7 (b) be based on // polarized wave excitation time emulation and the schematic diagram of reflection coefficient of test, the schematic diagram of the reflection coefficient of emulation and test when Fig. 7 (c) is the polarized wave excitation based on ⊥, Fig. 7 (d) is the schematic diagram of the reflection coefficient of emulation and test during mixed polarization wave excitation;
Fig. 8 is the three-dimensional far field radiation pattern of 10GHz of emulation, and wherein, Fig. 8 (a) is loudspeaker radiation directional diagram; Fig. 8 (b) is the far-field pattern based on polarization separator during the excitation of // polarized wave, the far-field pattern of polarization separator when Fig. 8 (c) encourages based on ⊥ polarized wave, Fig. 8 (d) is the far-field pattern of polarization separator during mixed polarization wave excitation;
Fig. 9 is the 10GHz two-dimensional radiation directional diagram of emulation and test, wherein, Fig. 9 (a) is the two-dimentional far field radiation pattern based on the excitation of // polarized wave, Fig. 9 (b) is the two-dimentional far field radiation pattern based on the excitation of ⊥ polarized wave, the two-dimentional far field radiation pattern that Fig. 9 (c) and Fig. 9 (d) is mixed polarization wave excitation;
Far field radiation pattern when Figure 10 is 9.6 to 10.2GHz of test, wherein, Figure 10 (a) be // schematic diagram that encourages of polarized wave, the schematic diagram that Figure 10 (b) encourages for ⊥ polarized wave;
The schematic diagram of polarization separation ratio when Figure 11 is the 10GHz of emulation and test.
Embodiment
Current proposition broad sense refraction/reflection law, and verify based on phase gradient super surperficial (PhaseGradientMetasurface, PGM).Super surperficial for anisotropy, based on not same polarization field wave, its electromagnetism is corresponding can carry out independent operation.Therefore, the broad sense law of refraction can be written as:
Wherein, θ
iand θ
tbe respectively incidence angle and refraction angle, n
iand n
trepresent the refractive index at incident interface and outgoing interface respectively, λ
0for Excitation Electromagnetic Wave is at the wavelength of free space.Subscript // and ⊥ represent horizontal polarized wave and vertically polarized wave respectively, and the mixed polarization ripple hereafter mentioned is the mixing of these two kinds of ripples, φ
xand φ
yrepresent the transmission phase place in x and y direction respectively, d φ
x/ dx and d φ
y/ dy represents the phase gradient in x and y direction respectively.When electromagnetic wave is incident along the z-axis direction, as shown in Figure 1, i.e. θ
i=0 °, for not like-polarized field wave, its deflection angle may be calculated:
That is, when adopting mixed polarization wave excitation two-dimensional transmission gradient super surperficial (TransmissivePhaseGradientMetasurface, TPGM), its outgoing wave will be decomposed into the different polarized wave of two bundles, realizes the function of polarization separation.For TGMS, its transmitted wave deviation angle may be calculated
Wherein, L
xfor // direction hyperelement size, P
xfor // the direction unit cycle, L
yfor ⊥ direction hyperelement size, P
yfor the ⊥ direction unit cycle.
Carry out design and the development of polarization separator, just must realize different phase gradients at different directions, the PHASE DISTRIBUTION that therefore TGMS need meet is
Wherein, φ
x(x, y) is the phase place in edge // direction, (x, y) place, φ
y(x, y) is the phase place of (x, y) place along ⊥ direction.
Fig. 1 gives the electromagnetic response during TPGMs adopting mixed polarization wave excitation 4 kinds different.As can be seen from Fig. 1 (a), for TPGM1, all there is not phase gradient in itself x and y direction, i.e. d φ
x/ dx=d φ
y/ dy=0, in this situation, mixed polarization ripple still transmits in the z-direction, and // polarized wave and ⊥ polarized wave can not realize wave beam and be separated.When x direction exists phase gradient, i.e. d φ
x/ dx ≠ 0 and d φ
yduring/dy=0, // polarized wave is at xoz plane generation wave beam deviation, and wave beam deviation does not occur ⊥ polarized wave.When y direction exists phase gradient, i.e. d φ
x/ dx=0 and d φ
yduring/dy ≠ 0, ⊥ polarized wave is at yoz plane generation wave beam deviation, and wave beam deviation does not occur // polarized wave.For when there is phase gradient respectively in x and y direction, i.e. d φ
x/ dx ≠ 0 and d φ
yduring/dy ≠ 0, // and the ⊥ polarized wave θ at xoz and yoz Planar realization respectively
1and θ
2deflection angle, in this kind of situation, can realize good wave beam stalling characteristic, for the preparation of high polarization purity wave beam in engineering, clutter reduction interference etc. has important application prospect.
Not only to realize the phase place coverage of 0 ~ 360 ° compared to reflected P GM, TPGM, and will ensure that sufficiently high transmission coefficient just can guarantee super surperficial high efficiency of transmission.Multilayer electromagnetic coupled can broadening phase place coverage, improves electromagnetic transmission amplitude simultaneously.
As shown in Figure 2, the embodiment of the present invention provides a kind of and comprises based on the super surperficial polarization separator of ultra-thin Transmission Gradient: base plate, described base plate be provided with based on matrix structure multiple 6 × 6 surpass surface cell array, each described super surface cell is the super surface cell based on three laminating sheet cascade coupled, described super surface cell comprises: first medium plate 1 and second medium plate 2, the first cascade metal patch 3 is provided with at the upper surface of described first medium plate 1, the second cascade metal patch 4 is provided with between the lower surface and the upper surface of second medium plate 2 of described first medium plate 1, third level connection metal patch 5 is provided with at the lower surface of second medium plate 2, described first cascade metal patch 3, second cascade metal patch 4, the size of third level connection metal patch 5 is identical with thickness, described first cascade metal patch 3 is of a size of dx × dy, dx and dy determines according to the transmission phase place realized, carry out Electromagnetic Simulation by FDTD software (tieing up Max dimension equation solution software based on vector 3) to determine, the thickness of described first cascade metal patch 3 is 0.018mm.
As preferably, first medium plate 1 and second medium plate 2 all adopt thickness to be 1.5mm, and dielectric constant is the F4B dielectric-slab of 2.65.
As preferred further, each super surface cell cycle is Px × Py=11mm × 11mm, and its outer layer metal structure is identical, for guaranteeing the boundary environment that unit is identical, ensures the accuracy of unit periodic boundary condition.
Super surface cell Electromagnetic Simulation is arranged as shown in Fig. 2 (b), for // polarized wave, unit by electric field in the x-direction, is encouraged to the electromagnetic wave of incidence by z, and for ⊥ polarized wave, unit by electric field in the y-direction, is encouraged to the electromagnetic wave of incidence by z.
Fig. 3 (a) gives transmission coefficient and the transmission phase place of three laminating sheet concatenation unit, can find out that this unit achieves wideband transmission within the scope of 5.4 ~ 10.35GHz, transmit phase place simultaneously and change to-623 ° from-131 °.In order to realize polarization separation, TPGM must meet different phase gradients in x and y direction, and the phase gradient in x direction is 60 ° here, and y direction is-60 °, and Fig. 3 (b) gives the electromagnetic response of x and y direction unit.Unit is all greater than 0.8 in the transmission amplitude in x and y direction as seen from the figure, transmits phase place simultaneously and meets gradient requirement.In order to the polarization autonomous behavior of authentication unit, CST software is adopted to carry out parameter scanning to unit, when dx is increased to 8mm from 3mm, when adopting // polarize excitation, transmission phase place changes to-543 ° from-275 °, and when adopting ⊥ polarized wave to encourage, the transmission phase place change of unit is less than 20 °, that is, constant for ⊥ polarized wave electromagnetic response when unit changes with dx, namely unit has polarization autonomous behavior.
In order to verify polarization Independence Principle and provide guidance for the design of polarization separator, proposed here the 4 step design criterions of TPGM: the first, calculate the phase gradient of two dimensions first according to demand; The second, the PHASE DISTRIBUTION at foundation equation (4) and phase gradient calculation level (x, y) place; 3rd, emulation obtains the phase response of unit for not same polarization field wave, then selects suitable unit according to (x, y) place PHASE DISTRIBUTION calculated; 4th, the unit combination selected become corresponding hyperelement to go forward side by side line period continuation, design two-dimentional TPGM.As shown in Figure 5, x and y direction meets d φ respectively
x/ dx=-60 ° and d φ
y/ dy=60 °, by calculating diverse location unit PHASE DISTRIBUTION, well-chosen 36 corresponding units form a hyperelement, and 4 × 4 hyperelements constitute the TPGM of response subsequently.When adopting mixed polarization wave excitation, wave beam achieves θ respectively in xoz and yoz plane
1=-27 ° and θ
2the wave beam deviation of=27 °, it is fine that this and foundation equation (2) result of calculation are coincide.
In order to carry out independent operation from experiment level to different polarized wave, we optimize further to the TPGM of design, devise the polar separator working in X-band.From Fig. 6 (a), hyperelement is made up of 6 × 6 elementary cells, is of a size of 66 × 66mm
2, be equivalent to 2.2 λ
0× 2.2 λ
0.The processed sample of polarization separator is as shown in Fig. 6 (c), and adopt traditional PCB technology to process, thickness is 0.1 λ
0, because employing phase gradient realizes the manipulation to phase place and polarization, therefore there is minimum thickness of sample.
We machined the sample of polarization separator and assemble.As shown in Fig. 7 (a), horn antenna as driving source, for providing different polarized electromagnetic wave.The froth bed of 20mm is added between horn antenna and sample, for playing a fixation, simultaneously not influential system performance.By ME7808A type, reflection coefficient vows that net is tested, result as shown in Figure 7.Can find out, it is fine that emulation and test result are coincide, and all demonstrate good matching properties lower than-25dB reflection paddy.For // polarization field wave, the 10dB impedance bandwidth of polarization separator emulation is 8.76 ~ 10.33GHz, and relative bandwidth is 16.45%, and it is 8.62 ~ 10.39GHz that test result shows its 10dB impedance bandwidth, and relative bandwidth is 18.62%.For ⊥ polarization field wave, the 10dB impedance bandwidth of emulation (test) is respectively 1.6 (8.62-10.22) GHz and 1.62 (8.6-10.22) GHz, is equivalent to 16.99% and 17.20%.During mixed polarization wave excitation, its 10dB emulates and the relative bandwidth of test is respectively 18.81% (8.62-10.41GHz) and 18.66% (8.65-10.43GHz).In a word, the polarization separator matching properties of design is good, and does not rely on the polarized state of field wave.
To be familiar with intuitively to have the function of polarization separator, emulate to horn antenna and based on the polarization separator that different polarized wave encourages respectively, its three-dimensional far field radiation pattern as shown in Figure 8.As can be seen from Fig. 8 (a), horn antenna is radiation in the z-direction, and wave beam deviation does not occur.When employing // polarized wave exciting electrode separator, far-field pattern is as shown in Fig. 8 (b), and wave beam is θ at xoz Planar realization
1=-26.7 °, this and theoretical prediction are completely the same.To polarize field wave for ⊥, wave beam is θ at yoz Planar realization
2the wave beam deviation of=27 °.For mixed polarization wave excitation, wave beam achieves good polarization separation characteristic, as shown in Fig. 8 (d).
Emulate the far-field characteristic of polarization separator in microwave dark room, its normalized radiation pattern as shown in Figure 9, coincide good by emulation and test result.Can find out, //, ⊥ and mixed polarization wave excitation time, polarization separator all has good wave beam deviation characteristic.Adopt in emulation, minor level is 12dB, and in test, minor level is about 10dB, and the deterioration of minor level is mainly caused by test environment.In test, the front and back of wave beam are than being 13dB, and cross polarization level is better than 15dB.
In order to study the radiation bandwidth characteristic of polarization separator, test its directional diagram at 9.6 ~ 10.2GHz, result as shown in Figure 10.As seen from the figure, the half beam width of polarization separator is about 16 °.During the excitation of employing // polarized wave ,-28 ° when deviation angle changes to 10.2GHz by-26.5 ° during 9.6GHz, this is mainly caused by the operation wavelength difference of different frequency.Similar, to polarize field wave for ⊥, wave beam deviation angle changes to 29 ° of 10.2GHz by 27 ° of 9.6GHz.Therefore, the bandwidth of operation of polarization separator is due to 600MHz, and relative bandwidth is better than 6%.
For polarization separator, the polarization separation degree between different polarized wave is an important indicator of evaluation system performance.So-called polarization separation ratio, namely when adopting mixed polarization ripple to encourage, choose the plane at two beam peak places, calculate and test the radiation characteristic in this plane, the trench value between two peak values is polarization separation ratio.Here emulate polarization separation ratio and test, result as shown in figure 11.Can find out, two wave beams achieve good wave beam and are separated, and the polarization separation ratio of emulation (test) is respectively 30 (18) dB.
The present invention proposes to adopt the polarization autonomous behavior of two-dimentional TPGM to realize polarization separator first; Polarization separator has ultra-slim features: employing TPGM realizes phase control, but not optical path difference realizes phase accumulation, greatly reduces the thickness of polarization separator, and its thickness is 0.1 λ only
0.
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection range, and make various amendment or equivalent replacement to the present invention, this amendment or equivalent replacement also should be considered as dropping in protection scope of the present invention.
Claims (4)
1. one kind based on the super surperficial polarization separator of ultra-thin Transmission Gradient, it is characterized in that, comprise: base plate, described base plate be provided with based on matrix structure multiple 6 × 6 surpass surface cell array, each described super surface cell is the super surface cell based on three laminating sheet cascade coupled, described super surface cell comprises: first medium plate (1) and second medium plate (2), the first cascade metal patch (3) is provided with at the upper surface of described first medium plate (1), the second cascade metal patch (4) is provided with between the lower surface and the upper surface of second medium plate (2) of described first medium plate (1), third level connection metal patch (5) is provided with at the lower surface of second medium plate (2), described first cascade metal patch (3), second cascade metal patch (4), the size of third level connection metal patch (5) is identical with thickness, described first cascade metal patch size is determined according to the transmission phase place realized.
2. as claimed in claim 1 based on the super surperficial polarization separator of ultra-thin Transmission Gradient, it is characterized in that, first medium plate (1) and second medium plate (2) all adopt thickness to be 1.5mm, and dielectric constant is the F4B dielectric-slab of 2.65.
3. as claimed in claim 1 based on the super surperficial polarization separator of ultra-thin Transmission Gradient, it is characterized in that, each super surface cell cycle is Px × Py=11mm × 11mm.
4. as claimed in claim 1 based on the super surperficial polarization separator of ultra-thin Transmission Gradient, it is characterized in that, the thickness of described first cascade metal patch (3) is 0.018mm.
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| CN105932425A (en) * | 2016-05-14 | 2016-09-07 | 中国人民解放军空军工程大学 | Dual-polarization multifunctional device based on anisotropic super-surface, and design method |
| CN106229694A (en) * | 2016-08-04 | 2016-12-14 | 中国人民解放军空军工程大学 | A kind of Transflective gradient surpasses method for designing and the application of surface cell |
| CN107799905A (en) * | 2017-08-31 | 2018-03-13 | 电子科技大学 | Terahertz polarization separator based on reflected beam skew |
| CN108063317A (en) * | 2016-10-28 | 2018-05-22 | 电子科技大学 | Surface Terahertz polarizer is surpassed based on parallel lines dipole structure chiral |
| CN109004369A (en) * | 2018-06-28 | 2018-12-14 | 中国人民解放军空军工程大学 | Reflection-type polarization based on frequency-selective surfaces backboard rotates super surface |
| CN112736481A (en) * | 2020-12-25 | 2021-04-30 | 南京航空航天大学 | Three-screen double-passband high-selectivity frequency selection surface and design method thereof |
| WO2021089137A1 (en) * | 2019-11-06 | 2021-05-14 | Huawei Technologies Co., Ltd. | Dual-polarization antenna module and electronic device comprising said antenna module |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932425A (en) * | 2016-05-14 | 2016-09-07 | 中国人民解放军空军工程大学 | Dual-polarization multifunctional device based on anisotropic super-surface, and design method |
| CN105932425B (en) * | 2016-05-14 | 2018-06-12 | 中国人民解放军空军工程大学 | Surpass the dual polarization multifunction device and design method on surface based on anisotropy |
| CN106229694A (en) * | 2016-08-04 | 2016-12-14 | 中国人民解放军空军工程大学 | A kind of Transflective gradient surpasses method for designing and the application of surface cell |
| CN106229694B (en) * | 2016-08-04 | 2019-07-12 | 中国人民解放军空军工程大学 | A kind of design method and application of the super surface cell of trans-reflective gradient |
| CN108063317A (en) * | 2016-10-28 | 2018-05-22 | 电子科技大学 | Surface Terahertz polarizer is surpassed based on parallel lines dipole structure chiral |
| CN107799905A (en) * | 2017-08-31 | 2018-03-13 | 电子科技大学 | Terahertz polarization separator based on reflected beam skew |
| CN107799905B (en) * | 2017-08-31 | 2020-07-31 | 电子科技大学 | Terahertz polarization separator based on reflected beam offset |
| CN109004369A (en) * | 2018-06-28 | 2018-12-14 | 中国人民解放军空军工程大学 | Reflection-type polarization based on frequency-selective surfaces backboard rotates super surface |
| WO2021089137A1 (en) * | 2019-11-06 | 2021-05-14 | Huawei Technologies Co., Ltd. | Dual-polarization antenna module and electronic device comprising said antenna module |
| CN114600315A (en) * | 2019-11-06 | 2022-06-07 | 华为技术有限公司 | Dual-polarized antenna module and electronic device comprising same |
| CN112736481A (en) * | 2020-12-25 | 2021-04-30 | 南京航空航天大学 | Three-screen double-passband high-selectivity frequency selection surface and design method thereof |
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Application publication date: 20160504 |