CN103985924A - Reflection-type polarization separator - Google Patents
Reflection-type polarization separator Download PDFInfo
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- CN103985924A CN103985924A CN201410220465.8A CN201410220465A CN103985924A CN 103985924 A CN103985924 A CN 103985924A CN 201410220465 A CN201410220465 A CN 201410220465A CN 103985924 A CN103985924 A CN 103985924A
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Abstract
The invention discloses a reflection-type polarization separator. The reflection-type polarization separator comprises a medium substrate, wherein the upper surface of the medium substrate is provided with a metal patch unit structure, the lower surface of the medium substrate is provided with a metal back plate, the metal patch unit structure is of an integrated structure formed by arranging two I-shaped elements in a mutually vertical mode, and middle long arms of the two I-shaped elements are crossed vertically. The reflection-type polarization separator has the following advantages that the polarization separator is easy to manufacture and convenient to manufacture in a large scale and is formed in the mode that artificial electromagnetic material basic units are arranged according to a certain rule, and the adopted process is a printed circuit board process; the polarization separator has the advantages of being flexible in design, structure parameters of the basic units are adjusted and accordingly phase delay of waves at different positions can be changed and deflection of different wave directions is achieved.
Description
Technical field
The present invention relates to a kind of reflective polarization separator, two mutually perpendicular polarized waves are separated, can be applied to microwave device field.
Background technology
In microwave and optical field, it is a very important technology that the wavelength-division of different polarization modes is not controlled.Wherein one is applied as two mutually perpendicular polarized waves is carried out to separation (PBSs).Up to now, PBSs realizes by the artificial anisotropic material of natural birefringece crystal or multilayer, thicker in order to obtain the flat board that enough splitting angle needs in this case, is unfavorable for processing and fabricating.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of reflective polarization separator, there is low-loss and be easy to processing, can increase the reliability of polarization separation device product.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of reflective polarization separator, comprise medium substrate, upper surface at medium substrate is furnished with metal patch cellular construction, lower surface at medium substrate is provided with metal backing, described metal patch cellular construction is the integrative-structure that two I shapes are arranged vertically formation mutually, long-armed the intersecting vertically in the middle of two I shapes.
Preferably, described metal patch cellular construction, two I shapes intersect vertically in long-armed separately midpoint.
Preferably, described metal patch cellular construction, two I shapes have structural parameters adjustability, can simultaneously independently to two I shapes, carry out structural parameters adjusting, when regulating the structural parameters of one of them I shape, the electromagnetic field direction of another vertical with it I shape is not exerted an influence.
Preferably, at the upper surface definition XOY of medium substrate coordinate system, all metal patch cellular constructions, I shape long-armed all parallel/perpendicular to X-axis/Y-axis.
Preferably, this reflective polarization separator is encouraged by plane wave, plane wave for any polarization, by being broken down into after reflective polarization separator, be parallel to two directions that I shape is long-armed, by changing the structural parameters of I shape, realize two orthogonal polarization are carried out to deviation to different directions.
Reflective polarization separator provided by the invention, has good anisotropic ability of regulation and control, can to perpendicular polarization and horizontal polarization, regulate and control respectively; Can be so that different polarization be carried out deviation to different directions by changing the distribution of the structural parameters of metal patch cellular construction; Therefore, the plane wave of polarization, by being broken down into the ripple of two mutually perpendicular polarization after reflective polarization separator, reflects to different directions arbitrarily, thereby has reached the object of polarization separation.
Beneficial effect: reflective polarization separator provided by the invention, for polarization separation, by changing the structural parameters of the I shape of metal patch cellular construction, can different polarization be regulated and controled, there is following beneficial effect: 1,, with separated the comparing of wave beam of traditional polarization, the present invention is tabular, makes simple, be convenient to extensive manufacture: the present invention is arranged according to certain rules by artificial electromagnetic material elementary cell, the technique of employing is printed circuit board technology; 2, polarization separator of the present invention has advantages of flexible design: by adjusting the distribution of the structural parameters of elementary cell, can change ripple in the phase delay of diverse location, thereby realize the deviation of wave direction different directions.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structural representation;
Fig. 2 is the structural representation of metal patch cellular construction in Fig. 1;
Fig. 3 is when different polarization, change structure parameter l y, the variation of reflected phase will;
Fig. 4 is the PHASE DISTRIBUTION of the cellular construction of the present embodiment selection, can be so that 30 ° of direction deviations of wave direction;
Fig. 5 is the sample drawing of the present embodiment;
Fig. 6 is near field of the present invention and far field simulation result: (a) during 10.5GHz, and the near field simulation result of horizontal polarization (electric field is in the x-direction); (b) during 10.5GHz, the near field simulation result (c) of perpendicular polarization (electric field is in the y-direction); During 10.5GHz, the simulation result in far field;
Fig. 7 is that the present invention is at the far field of 10.5GHz test resolution chart, the far-field pattern while representing respectively horizontal polarization and perpendicular polarization.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 a kind of reflective polarization separator, be printed on very thin medium substrate 1, wherein upper surface is resonant element (metal patch cellular construction 3), and lower surface is metal backing 2; Metal backing 2 can reduce electromagnetic transmission, and its reflection efficiency is improved.
As shown in Figure 2, resonant element is the integrative-structure that two I shapes are arranged vertically formation mutually, and the long-armed midpoint in the middle of two I shapes intersects vertically; At the upper surface definition XOY of medium substrate 1 coordinate system, all resonant elements, I shape long-armed all parallel/perpendicular to X-axis/Y-axis; Two long-armed llx in the middle of two I shapes and ly are elected to be to variable structural parameters, within the specific limits the phase place of accommodation reflex.
As shown in Figure 3, under different polarised direction excitations, change structure parameter l y, can see that phase change on reflection has huge difference.In the situation that direction of an electric field is parallel with long-armed ly direction, change the size of long-armed ly, reflected phase will can change in the scope of 330 °.And when direction of an electric field is vertical with ly, can see that changing ly does not have impact substantially on reflected phase will.As can be seen here, this cellular construction has good anisotropy, can in two mutually perpendicular directions, to electric field, divide other regulation and control.
As shown in Figure 4, by the ly of selected cell structure, make the reflected phase will of perpendicular polarization meet this distribution.By phase compensation principle, can be by the wave reflection of perpendicular polarization the direction to 30 °.Accordingly, select wave reflection that llx makes horizontal polarization to the direction of-30 °.
As shown in Figure 5, be the microwave sample figure of the present embodiment.
As shown in Figure 6, be near field and the far field simulation result of example of the present invention, wherein: (a) during 10.5GHz, the near field simulation result of horizontal polarization (electric field in the x-direction), can see horizontal polarized wave z axle-30 ° direction deviation relatively on xz face; (b) during 10.5GHz, perpendicular polarization (electric field in the y-direction) ripple on xz face relatively 30 ° of directions of z axle carry out deviation; (c) during 10.5GHz, the simulation result in far field, its middle plateform is encouraged by the plane wave of polarised direction and cellular construction direction at 45 °, in the case, polarised direction is decomposed into perpendicular polarization and horizontal polarization, by the effect of polarization separator of the present invention, obtain far-field pattern as shown in the figure.Can see, plane wave has carried out polarization separation, has obtained two peak values.
As shown in Figure 7, experimental result and simulation result have had well identical.The present invention has obtained checking, has good application.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a reflective polarization separator, it is characterized in that: comprise medium substrate (1), upper surface at medium substrate (1) is furnished with metal patch cellular construction (3), lower surface at medium substrate (1) is provided with metal backing (2), described metal patch cellular construction (3) is the integrative-structure that two I shapes are arranged vertically formation mutually, long-armed the intersecting vertically in the middle of two I shapes.
2. reflective polarization separator according to claim 1, is characterized in that: described metal patch cellular construction (3), two I shapes intersect vertically in long-armed separately midpoint.
3. reflective polarization separator according to claim 1, it is characterized in that: described metal patch cellular construction (3), two I shapes have structural parameters adjustability, can simultaneously independently to two I shapes, carry out structural parameters adjusting, when regulating the structural parameters of one of them I shape, the electromagnetic field direction of another vertical with it I shape is not exerted an influence.
4. reflective polarization separator according to claim 1, is characterized in that: at the upper surface definition XOY of medium substrate (1) coordinate system, all metal patch cellular constructions (3), I shape long-armed all parallel/perpendicular to X-axis/Y-axis.
5. reflective polarization separator according to claim 1, it is characterized in that: this reflective polarization separator is encouraged by plane wave, plane wave for any polarization, by being broken down into after reflective polarization separator, be parallel to two directions that I shape is long-armed, by changing the structural parameters of I shape, realize two orthogonal polarization are carried out to deviation to different directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220465.8A CN103985924A (en) | 2014-05-22 | 2014-05-22 | Reflection-type polarization separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220465.8A CN103985924A (en) | 2014-05-22 | 2014-05-22 | Reflection-type polarization separator |
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| CN103985924A true CN103985924A (en) | 2014-08-13 |
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| CN201410220465.8A Pending CN103985924A (en) | 2014-05-22 | 2014-05-22 | Reflection-type polarization separator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868252A (en) * | 2015-06-05 | 2015-08-26 | 东南大学 | 1-bit microwave anisotropic electromagnetic coding meta-material |
| CN104993247A (en) * | 2015-06-01 | 2015-10-21 | 东南大学 | Anisotropy dual-polarization illusion and stealthy artificial electromagnetic surface |
| CN105390819A (en) * | 2015-12-14 | 2016-03-09 | 桂林电子科技大学 | Ultra-wideband electromagnetic super-surface circular polarizer |
| RU2670216C1 (en) * | 2017-12-15 | 2018-10-19 | Общество С Ограниченной Ответственностью "Инфинет" | Planar polarization selector |
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| CN203521603U (en) * | 2013-11-07 | 2014-04-02 | 深圳光启创新技术有限公司 | Multilayer nested microstructure unit and meta-material plate |
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| US20040070829A1 (en) * | 2002-10-15 | 2004-04-15 | Kurtz Andrew F. | Wire grid polarizer |
| CN101218761A (en) * | 2005-07-04 | 2008-07-09 | 艾利森电话股份有限公司 | Passive relay antenna |
| KR20090116349A (en) * | 2008-05-07 | 2009-11-11 | 연세대학교 산학협력단 | Reflection type polarization converter and polarization generation apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993247A (en) * | 2015-06-01 | 2015-10-21 | 东南大学 | Anisotropy dual-polarization illusion and stealthy artificial electromagnetic surface |
| CN104868252A (en) * | 2015-06-05 | 2015-08-26 | 东南大学 | 1-bit microwave anisotropic electromagnetic coding meta-material |
| CN105390819A (en) * | 2015-12-14 | 2016-03-09 | 桂林电子科技大学 | Ultra-wideband electromagnetic super-surface circular polarizer |
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| RU2670216C1 (en) * | 2017-12-15 | 2018-10-19 | Общество С Ограниченной Ответственностью "Инфинет" | Planar polarization selector |
| US10651524B2 (en) | 2017-12-15 | 2020-05-12 | Infinet LLC | Planar orthomode transducer |
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Application publication date: 20140813 |