CN103996905A - Multifunctional microwave device with controllable polarization - Google Patents
Multifunctional microwave device with controllable polarization Download PDFInfo
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Abstract
The invention relates to a multifunctional microwave device with controllable polarization. The multifunctional microwave device is formed by arraying multiple layers of core substrates by two periods at intervals. The gap between every tow adjacent core substrates (2) is filled with foams (4). The number of the layers of the core substrates (2) can be increased or decreased according to the shape of the section of the microwave device (1), and the length of each core substrate (2) can be determined according to the shape of the section of the microwave device (1). The core substrates (2) are planar dielectric substrates, wherein resonance elementary units (3) are periodically and longitudinally arranged on one plane, each line of the core substrates (1) is composed of three resonance elementary units (3), and the number of the resonance elementary units (3) in each column can be determined according to the length of the core substrates (2). Space band-pass filtering, space all-pass filtering and polarization conversion can be performed on electromagnetic waves which are incident in different linear polarization modes within a certain frequency band.
Description
Technical field
The present invention relates to the controlled multifunction microwave device of a kind of polarization, relate in particular to a kind of controlled multifunction microwave device of polarization of the field such as electromagnetic wave space filtering, polarization conversion that is applied in microwave frequency band.
Background technology
Electromagnetic filtering and polarization conversion are all the emphasis in electromagnetic wave research all the time.At microwave frequency band, electromagnetic wave filtering, polarization conversion are widely used at the aspect such as Circuits System, antenna system.
The filtering of traditional electrical magnetic wave mainly depends on microwave circuit, the filter construction complexity being realized by the structure such as waveguide, microstrip line, and cost performance is not high.Also occurred at present some other electromagnetic wave filter, it is mainly by the photonic crystal of permanent-magnet ferrite composition is placed in the default through hole of base material, and at the upper and lower both sides of base material covering metal cover plate, absorbing material is placed in the left and right sides.Although this microwave band-pass filter is also a kind of electromagnetic wave spatial filter, device needs to arrange suitable border around, so adopt the type device to be greatly limited in practical application.
In the prior art, polarization of ele is changed except utilizing traditional circuit methods to realize, and also can realize by artificial electromagnetic material.Utilize the anisotropy of metal micro structure to regulate and control electromagnetic two quadrature components, realize polarization of electromagnetic wave conversion.Although this super material polarization converter can be realized polarization conversion, adopting the defect of the type device is function singleness, has not also provided the actual efficiency of polarization conversion.
Thus, the present invention proposes a kind of simple in structure, application is convenient and can improve the controlled multifunction microwave device of polarization of polarization conversion efficiency.
Summary of the invention
In view of this, the object of the invention is to provide the controlled multifunction microwave device of a kind of polarization, can realize electromagnetic space bandpass filtering, space all-pass wave filtering and polarization conversion at microwave frequency band.The controlled multifunction microwave device 1 that polarizes is realized by artificial electromagnetic material.The present invention adopts on medium substrate etching metal pattern with effective dielectric constant and the equivalent permeability of regulation and control resonance elementary cell.By the shape and size of metal pattern 5 in design resonance elementary cell 3, effective dielectric constant that can artificial adjustment resonant element 3 and equivalent permeability are with the change curve of frequency; And, make resonant element 3 there is polarization sensitive characteristic, can produce different responses to the electromagnetic wave of different polarization modes.Meanwhile, on central layer 2, the metal structure 5 of printing is also arranged by rule, and the cellular construction number of laterally arranging on central layer 2 is always 3, and the length of the central layer 2 that the cellular construction number of longitudinally arranging can be as required increases and decreases.In central layer 2 parallel arrangements, we can adjust the length of central layer 2 and the position relationship of central layer 2, form the microwave device 1 in difformity cross section.
The invention provides the controlled multifunction microwave device of a kind of polarization, it comprises: the central layer 2 of multilayer parallel stack, and described central layer is planar medium substrate; On a surface of every one deck central layer 2, be provided with M*N and be the matrix resonance elementary cell 3 of arranging, wherein, M is natural number, N=3; Described in each, resonance elementary cell 3 is printed with identical metal pattern 5, the upper and lower comb structure that described metal pattern 5 forms for metal wire;
Described upper comb dent comprises that both sides length is all l
1first, the 7th broach, middle part length be all l
3the the 3rd, the 5th broach, described lower broach comprise middle part length be all l
2second, the 6th broach, described the second broach and described first and third broach coupling, described the 6th broach is coupled with described the 5th, seven broach, described upper and lower broach is l by the length on center line
mthe 4th broach connect, the live width of described metal wire is w, the spacing between described broach is g;
Described every one deck central layer 2 arrange described in shake the surface of elementary cell 3 arrays towards identical or contrary;
In the time of the electromagnetic wave incident from the side of different polarization modes, the controlled multifunction microwave device of described polarization can carry out corresponding space bandpass filtering, all-pass wave filtering and polarization conversion to the electromagnetic wave of different linear polarization mode incident.
Preferably, described planar medium substrate can be made by ceramic material, macromolecular material, ferroelectric material, ferrite material, ferromagnetic material epoxy resin or polytetrafluoroethylene.
Preferably, between two adjacent described central layers, be provided with space, described space available air or foam-filled.
Preferably, the space between two adjacent described central layers is 2.5mm.
Preferably, length and the width of described resonance elementary cell are 3mm, and described planar medium substrate thickness is 0.5mm, and described upper and lower comb structure is: l
1=l
2=2.2mm, l
3=1.4mm, l
m=2.4mm, g=0.2mm and w=0.2mm.
Preferably, corresponding perpendicular polarization electromagnetic wave regulating effect is space bandpass filtering, and passband is 9GHz to 11GHz.
Preferably, corresponding horizontal line polarized electromagnetic wave regulating effect is space all-pass wave filtering.
Preferably, corresponding oblique 45 degree polarized electromagnetic wave regulating effects are polarization converter, arrive within the scope of 11GHz at 9GHz, 9GHz is same polarization conversion, it when 11GHz, is cross polarization conversion, when 10GHZ, be that line polarization wave is changed to circularly polarised wave, 9GHz<f<10GHz, 10GHz<f<11GHz is that line polarization wave is changed to elliptically polarised wave.
Preferably, the number of plies of described central layer and length difference is set, can form the described microwave device of different cross section shape, and each is listed as the number of described resonance elementary cell by the length setting of described central layer.
Preferably, rectangle, triangle, circle can be processed in the cross section of the controlled multifunction microwave device of described polarization.
The present invention compared with prior art, has the following advantages:
The present invention utilize resonance elementary cell 3 polarization sensitive characteristics design the controlled multifunction microwave device of a kind of polarization, electromagnetic wave spatial filter, polarization of ele transducer are integrated in one, can realize difference in functionality by different linear polarization incident waves.
2. the present invention, when as electromagnetic wave spatial filter, can realize the logical spatial filter of perpendicular polarization electromagnetism wavestrip and horizontally-polarized electromagnetic wave all-pass spatial filter.The present invention is when as polarization of ele transducer, when can realize 9GHz time, line polarization wave is converted into same polarization ripple, 11GHz, line polarization wave is converted into cross polarization wave, 10GHz linear polarised electromagnetic wave is converted into circularly polarised wave, and other frequency line polarized wave transfers elliptically polarised wave to.
3. the controlled multifunction microwave device 1 of the polarization in the present invention is arranged and foam-filled forming by central layer 2 parallel interval, assembles simple and convenient; Central layer 2 is a kind of printed circuit board (PCB)s, and processing technology maturation, reliability are high.
4. the controlled multifunction microwave device 1 that polarizes in the present invention is tabular, and thin thickness, simultaneously on central layer 2, longitudinally the number of resonance elementary cell 3 can be according to the length increase and decrease of required central layer 2, and rectangle, triangle, circle can be processed in the cross section of the controlled multifunction microwave device 1 that makes to polarize.
5. controlled multifunction microwave device 1 conversion efficiency of the polarization in the present invention is high, can easily be installed at before all kinds of lens antennas, to adjust polarization of electromagnetic wave state.
Brief description of the drawings
Fig. 1 is the structural representation of controlled multifunction microwave device of polarizing in one embodiment of the invention;
Fig. 2 is the structural representation of a resonance elementary cell in Fig. 1 of the present invention;
Fig. 3 is the core plate structure schematic diagram in Fig. 1 of the present invention;
Fig. 4 (a) is that leg-of-mutton structural representation is processed in microwave device of the present invention cross section;
Fig. 4 (b) is that microwave device of the present invention cross section processes conglobate structural representation;
Fig. 5 is the equivalent electric magnetic parameter curve of the corresponding resonance elementary cell of Fig. 2 of the present invention;
Fig. 6 is the example structure schematic diagram of further embodiment of this invention microwave device as band pass filter;
Fig. 7 is the example structure schematic diagram of another embodiment of the present invention microwave device as all-pass filter;
Fig. 8 is the example structure schematic diagram of yet another embodiment of the invention microwave device as polarization converter;
Fig. 9 be Fig. 6 of the present invention, Fig. 7, Fig. 8 corresponding transformation parameter test curve.
Description of reference numerals:
1, microwave device; 2, central layer; 3, resonance elementary cell; 4, foam; 5, metal pattern.
Embodiment
Fig. 1 is the structural representation of controlled multifunction microwave device of polarizing in one embodiment of the invention.As shown in Figure 1, the invention provides the controlled multifunction microwave device 1 of a kind of polarization, it can carry out the regulation and control of corresponding space to the electromagnetic wave of different polarization modes, this microwave device 1 comprises: the central layer 2 of the parallel stack of polylith, on a surface of each piece central layer 2, be provided with M*N (wherein, M, N is natural number) be the matrix resonance elementary cell 3 of arranging, preferably, N=3, the number of plies of central layer 2 can increase and decrease according to microwave device 1 cross sectional shape, the length of every central layer 2 can determine according to microwave device 1 cross sectional shape, the number of the resonance elementary cell 3 of each row can determine according to the length of required central layer 2.In the time of the electromagnetic wave incident from the side of different polarization modes, the controlled multifunction microwave device that polarizes just can carry out corresponding space regulation and control to electromagnetic wave.
In concrete implementation, microwave device 1 is by central layer 2 parallel being formed by stacking at a certain distance, and the central layer 2 of stack is 3 layers, central layer 2 is printed with the plane of metal pattern 5 towards identical or contrary, between adjacent central layer 2, leave a fixed gap, for example, described space is preferably 2.5 millimeters.In order to make central layer assembling more simple and reliable, the space that adjacent central layer is 2 can be filled with foam 4.The dielectric constant of foam 4 approaches the dielectric constant of air.In addition, can also between two adjacent sheet central layers, fill other medium that air or dielectric constant and magnetic permeability and air approach.
Fig. 2 is the structural representation of resonance elementary cell 3 in Fig. 1 of the present invention.As shown in Figure 2, resonance elementary cell 3 is at planar medium plate surface etch metal pattern 5, and this resonance elementary cell 3 has different responses to the electromagnetic wave of different polarization modes.Preferably, length and the width of resonance elementary cell 3 are 3mm, and planar medium substrate thickness is 0.5mm, metal pattern 5 sizes: l
1=l
2=2.2mm, l
3=1.4mm, l
m=2.4mm, g=0.2mm and w=0.2mm.
Fig. 3 is the structural representation of central layer 2 in Fig. 1 of the present invention.As shown in Figure 3, central layer 2 was arranged and is formed by 3 cycles of resonance elementary cell.The width of central layer 2 etching metal pattern surfaces is three times of resonance elementary cell 3 length of sides, i.e. 9mm; Length is the integral multiple of resonance elementary cell 3 length of sides; Thickness is 0.5mm.The substrate of central layer 2 is planar medium plate, and it can be made by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material, can also be made by epoxy resin or polytetrafluoroethylene.
For different application demand, the vertical cross-section of microwave device 1 need to be processed into difformity, for example rectangle, triangle, circle.The length of central layer 2 need to be determined according to microwave device 1 sectional dimension.Fig. 4 (a) is that cross section is leg-of-mutton microwave device 1, and Fig. 4 (b) is that cross section is the sectional view of circular microwave device 1.Central layer 2 length definite according to cross sectional shape are Lmm, and the resonance elementary cell length of side is 3mm, and on known actual central layer 2, the metal pattern 5 number N of printing get the maximum integer that is not more than L/3, and the physical length of central layer 2 is 3*Nmm, and wherein N is natural number.
In concrete realization, can also encapsulate microwave device 1, make to can't see artificial micro-structural from outside, the material of encapsulation is identical with the material of central layer.
Resonance elementary cell 3 is of a size of 1/10th of working band centre frequency wavelength, so resonance elementary cell can be considered effective medium.Shown in Fig. 5 (a), when electromagnetic wave is pressed perpendicular polarization (P1), horizontal polarization (P2) incident, the equivalent electric magnetic parameter of resonance elementary cell 3 correspondences is as shown in Fig. 5 (c)-(d), its electromagnetic parameter Changing Pattern is as follows: the effective dielectric constant that perpendicular polarization (P1) is corresponding and the imaginary part of equivalent permeability are zero, and real part all increases with frequency; The effective dielectric constant that horizontal polarization (P2) is corresponding and the imaginary part of equivalent permeability are zero, and real part is always 1 and does not change with frequency.Effective medium equals equivalent permeability in the square root of effective dielectric constant ratio with respect to the wave impedance of air.Effective medium equals the square root of effective dielectric constant and equivalent permeability product with respect to the refractive index of air.According to Fig. 5 (c) and (d), calculating can obtain equivalent wave impedance and the equivalent refractive index with respect to air of effective medium.As shown in Fig. 5 (e), for perpendicular polarization (P1), in 8.5GHz to 9GHz and 11GHz to 11.7GHz frequency range, equivalent wave impedance is much larger than 1, and between effective medium and air, impedance mismatching is serious; In 9GHz to 11GHz scope, equivalent wave impedance is 1, between effective medium language air, mates completely.As shown in Fig. 5 (e), for horizontal polarization (P2), in 7GHz to 13GHz frequency range, equivalent wave impedance is always 1, and the impedance having realized between effective medium and air is mated completely.
Controlled multifunction microwave device 1 provided by the invention, can carry out corresponding space bandpass filtering, all-pass wave filtering and polarization conversion to the electromagnetic wave of different linear polarization mode incident.Fig. 6, Fig. 7, Fig. 8 embodiment of corresponding bandpass filtering, all-pass wave filtering and three kinds of functions of polarization conversion respectively.Microwave device cross section is rectangle in this embodiment, is made up of foam-filled by thickness 2.5mm between adjacent central layer the parallel stack of central layer of 11 block length 33mm, wide 9mm, thickness 0.5mm.Every central layer transverse resonance elementary cell number is 3, and longitudinally resonance elementary cell number is 11.On central layer, the metal pattern size of etching is identical with the metal pattern of etching in resonance elementary cell in Fig. 5, is specially l
1=l
2=2.2mm, l
3=1.4mm,
m=2.4mm, g=0.2mm and w=0.2mm.
Fig. 6 is the structural representation of further embodiment of this invention microwave device as band pass filter.As shown in Figure 6, linear polarised electromagnetic wave is from the side incident of microwave device, and electromagnetic vector is parallel to the plane that is printed with metal pattern, and magnetic vector is perpendicular to the plane that is printed with metal pattern.Electromagnetic wave is the line polarization wave of perpendicular polarization, the perpendicular polarization in corresponding diagram 5, and microwave device is operated in band pass filter state.In passband, the equivalent wave impedance of microwave device equals 1 mates completely with air, realizes electromagnetic high percent of pass transmission; In stopband, the equivalent wave impedance of microwave device is much larger than 1, and microwave device and air mismatch are serious, have hindered electromagnetic transmission.In the time that microwave device works in band pass filter state, incident electromagnetic wave is necessary for the line polarization wave of above-mentioned perpendicular polarization.
Fig. 7 is the example structure schematic diagram of another embodiment of the present invention microwave device as all-pass filter.As shown in Figure 7, linear polarised electromagnetic wave is from the side incident of microwave device, and electromagnetic vector is perpendicular to the plane that is printed with metal pattern, and magnetic vector is parallel to the plane that is printed with metal pattern.Electromagnetic wave is the line polarization wave of horizontal polarization, the horizontal polarization in corresponding diagram 5, and microwave device is operated in all-pass filter state.In whole frequency band range, the equivalent wave impedance of microwave device is always 1 mates completely with air, has realized electromagnetic high permeability transmission.In the time that microwave device works in all-pass filter state, incident electromagnetic wave is necessary for the line polarization wave of above-mentioned horizontal polarization.
Fig. 8 is the example structure schematic diagram of yet another embodiment of the invention microwave device as polarization converter.As shown in Figure 8, linear polarised electromagnetic wave is from the side incident of microwave device, and electric field intensity becomes 45 degree with horizontal plane, also become 45 degree with central layer, and magnetic vector is perpendicular to electric field intensity.Electric field component is decomposed and is parallel to central layer direction and perpendicular to central layer direction, microwave device is identical to the response amplitude of both direction electric field component, and phase difference is along with frequency change.In the time of 9GHz, the outgoing electric field amplitude of microwave device is identical with incident electric field, and both phase differences are 0 degree, realizes incident wave same polarization conversion.In the time of 10GHz, microwave device is corresponding identical to the amplitude of horizontal direction and vertical direction, and phase difference is 90 degree, and incident wave changes into circularly polarised wave from line polarization wave.In the time of 11GHz, the outgoing electric field amplitude of microwave device is identical with incident electric field, and both phase differences are 180 degree, realizes incident wave cross polarization conversion.Except 9GHz, 10GHz, 11GHz, in 9GHz to 11GHz frequency range, incident wave changes into elliptically polarised wave from line polarization wave.
Fig. 9 be Fig. 6 of the present invention, Fig. 7, Fig. 8 corresponding transformation parameter test curve, with reference to controlled multifunction microwave device simulation and the test result of polarizing shown in figure 9, transmission coefficient (S when Fig. 9 (a) is perpendicular polarization and horizontally-polarized electromagnetic wave incident
21), can see electromagnetic wave by perpendicular polarization (P1) incident time, in from 9GHz to 11GHz frequency band, efficiency of transmission approaches 0dB, there is good pass-band performance, and below 9GHz and more than 11GHz, transmission coefficient-below 25dB, show as good stopband characteristic, therefore the lower controlled multifunction microwave device of this polarization of perpendicular polarization (P1) is band pass filter; Electromagnetic wave during by horizontal polarization (P2) incident in the whole frequency band of 7GHz to 13GHz efficiency of transmission approach 0dB, all-pass characteristic is good, therefore the lower controlled multifunction microwave device of this polarization of horizontal polarization (P2) is band pass filter.
In addition, shown in Fig. 9 (b), in the time of 10GHz, the transmission coefficient phase difference of perpendicular polarization and horizontal polarization is 90 degree, and in the time that incident wave line polarization wave electric field intensity becomes 45 to spend with horizontal plane, outgoing wave is circularly polarised wave.
When Fig. 9 (c) becomes 45 to spend for electric field intensity with horizontal plane with (d), the amplitude of Electromgnetically-transparent coefficient and phase place.Suppose that electric field intensity E is according to the incident of V polarization mode, wherein H polarization is vertical with V polarization, wherein transmission coefficient t
vVand T
hVchange with frequency change, and V polarization and H poor 90 degree that are constantly equal to during to 11GHz at 9GHz of transmission phase that polarize.Can find out from test result, in the time of 9GHz, T
vVapproach 0dB, and T
hVbe less than-below 10dB, now transmitted wave is still V polarization, is same polarization conversion; At 10GHz, T
vV=T
hV=-3dB, now transmitted wave is circular polarization, realizes linear polarization and changes to circular polarization; In the time of 11GHz, T
hVapproach 0dB, and T
vVbe less than-below 10dB, now transmitted wave is H polarization, is cross polarization conversion; And at 9GHz to the (9GHz<f<10GHz of other frequency between 11GHz, 10GHz<f<11GHz), the amplitude of V polarization and H polarization transmission coefficient is unequal, but phase difference between the two differs 90 degree, it is now elliptical polarization.In the time of other frequency (9GHz<f<10GHz, 10GHz<f<11GHz).
The controlled multifunction microwave device of polarization in the present invention is to realize by a kind of resonance elementary cell 3 to polarization of ele sensitivity.Inventor obtains needed equivalent electric magnetic parameter by the shape and size of design metal pattern 5.
As an embodiment, metal pattern can be attached on central layer 2 by etching, plating, brill quarter, photoetching, electronics is carved or particle is carved method.
As another embodiment, select polytetrafluoroethylene to make plate shape substrates.The electrical insulating property of polytetrafluoroethylene is very good, and therefore can electromagnetic electric field not produced and be disturbed, and there is good chemical stability, corrosion resistance, long service life, the base material adhering to as metal micro structure is good selection.
As an embodiment again, metal wire is copper cash or silver-colored line, and copper conducts electricity very well with silver, and to the response of electric field, more power mouth is sensitive.
As another embodiment, the central layer 2 of the controlled multifunction microwave device 1 that polarizes can be processed into difformity, as rectangle or circle or triangle, can so that be packaged into different shape, meet the need of market.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned execution mode, within the scope of technical conceive of the present invention; can carry out multiple equivalents to technical scheme of the present invention, these equivalents all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.
Claims (10)
1. the controlled multifunction microwave device of polarization, it comprises:
The central layer 2 of multilayer parallel stack, described central layer is planar medium substrate;
On a surface of every one deck central layer 2, be provided with M*N and be the matrix resonance elementary cell 3 of arranging, wherein, M is natural number, N=3;
Described in each, resonance elementary cell 3 is printed with identical metal pattern 5, the upper and lower comb structure that described metal pattern 5 forms for metal wire;
Described upper comb dent comprises that both sides length is all l
1first, the 7th broach, middle part length be all l
3the the 3rd, the 5th broach, described lower broach comprise middle part length be all l
2second, the 6th broach, described the second broach and described first and third broach coupling, described the 6th broach is coupled with described the 5th, seven broach, described upper and lower broach is l by the length on center line
mthe 4th broach connect, the live width of described metal wire is w, the spacing between described broach is g;
Described every one deck central layer 2 arrange described in shake the surface of elementary cell 3 arrays towards identical or contrary;
In the time of the electromagnetic wave incident from the side of different polarization modes, the controlled multifunction microwave device of described polarization can carry out corresponding space bandpass filtering, all-pass wave filtering and polarization conversion to the electromagnetic wave of different linear polarization mode incident.
2. according to the controlled multifunction microwave device of polarization claimed in claim 1, it is characterized in that, described planar medium substrate can be made by ceramic material, macromolecular material, ferroelectric material, ferrite material, ferromagnetic material epoxy resin or polytetrafluoroethylene.
3. according to the controlled multifunction microwave device of polarization claimed in claim 1, it is characterized in that, between two adjacent described central layers, be provided with space, described space available air or foam-filled.
4. according to the controlled multifunction microwave device of polarization claimed in claim 2, it is characterized in that, the space between two adjacent described central layers is 2.5mm.
5. according to the controlled multifunction microwave device of polarization claimed in claim 1, it is characterized in that, length and the width of described resonance elementary cell are 3mm, and described planar medium substrate thickness is 0.5mm, and described upper and lower comb structure is: l
1=l
2=2.2mm, l
3=1.4mm, l
m=2.4mm, g=0.2mm and w=0.2mm.
6. according to the controlled multifunction microwave device of polarization claimed in claim 1, it is characterized in that, corresponding perpendicular polarization electromagnetic wave regulating effect is space bandpass filtering, and passband is 9GHz to 11GHz.
7. according to the controlled multifunction microwave device of polarization claimed in claim 1, it is characterized in that, corresponding horizontal line polarized electromagnetic wave regulating effect is space all-pass wave filtering.
8. according to the controlled multifunction microwave device of polarization claimed in claim 1, it is characterized in that, corresponding oblique 45 degree polarized electromagnetic wave regulating effects are polarization converter, arrive within the scope of 11GHz at 9GHz, 9GHz is same polarization conversion, is cross polarization conversion when 11GHz, is that line polarization wave is changed to circularly polarised wave when 10GHZ, 9GHz<f<10GHz, 10GHz<f<11GHz is that line polarization wave is changed to elliptically polarised wave.
9. according to the controlled multifunction microwave device of polarization claimed in claim 1, it is characterized in that, the number of plies of described central layer and length difference is set, can form the described microwave device of different cross section shape, and each is listed as the number of described resonance elementary cell by the length setting of described central layer.
10. according to the controlled multifunction microwave device of polarization claimed in claim 9, it is characterized in that, rectangle, triangle, circle can be processed in the cross section of the controlled multifunction microwave device of described polarization.
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| CN104852156A (en) * | 2015-04-02 | 2015-08-19 | 电子科技大学 | Novel broadband electromagnetic wave polarization regulation electromagnetic structure |
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| CN106450793A (en) * | 2016-09-12 | 2017-02-22 | 电子科技大学 | Broadband selectivity wave-transparent polarization regulation electromagnetic structure |
| CN106450793B (en) * | 2016-09-12 | 2019-08-13 | 电子科技大学 | A kind of broadband selective wave transparent polarization regulation electromagnetic structure |
| CN106953169A (en) * | 2017-04-27 | 2017-07-14 | 南京信息工程大学 | A kind of planar structure electromagnetic wave vertical polarization is to horizontal polarization converter |
| CN106911004A (en) * | 2017-04-27 | 2017-06-30 | 南京信息工程大学 | A kind of planar structure polarization of ele converter |
| CN107528128A (en) * | 2017-08-15 | 2017-12-29 | 南京信息工程大学 | A kind of polarization converter based on frequency selection plane |
| CN108134211A (en) * | 2017-12-23 | 2018-06-08 | 中国人民解放军战略支援部队信息工程大学 | For the arbitrary line-linear polarization converter and conversion method of plane satellite antenna |
| CN110707431A (en) * | 2019-10-21 | 2020-01-17 | 苏州大学 | Artificial dielectric surface based on coplanar bidirectional interdigital patch structure |
| CN110707431B (en) * | 2019-10-21 | 2021-04-06 | 苏州大学 | Artificial dielectric surface based on coplanar bidirectional interdigital patch structure |
| CN111541031A (en) * | 2020-04-16 | 2020-08-14 | 华南理工大学 | Broadband low-profile transmission array antenna and wireless communication equipment |
| CN111541031B (en) * | 2020-04-16 | 2021-08-10 | 华南理工大学 | Broadband low-profile transmission array antenna and wireless communication equipment |
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