CN103107386B - Metamaterial phase shifter - Google Patents
Metamaterial phase shifter Download PDFInfo
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- CN103107386B CN103107386B CN201110360940.8A CN201110360940A CN103107386B CN 103107386 B CN103107386 B CN 103107386B CN 201110360940 A CN201110360940 A CN 201110360940A CN 103107386 B CN103107386 B CN 103107386B
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Abstract
The present invention relates to metamaterial phase shifter, comprising: rotatable circular waveguide, the Meta Materials post be arranged in described circular waveguide inner chamber; Described Meta Materials post comprises the multiple metamaterial sheet being laminated for one, the base material that described metamaterial sheet comprises sheet and the multiple man-made microstructure be arranged on base material, same metamaterial sheet refractive index is everywhere identical, and the refractive index of each metamaterial sheet reduces to two ends gradually from the center of described Meta Materials post.The present invention by arranging Meta Materials post in circular waveguide inner chamber, and rotational circle waveguide can change the Electric Field Distribution of circular waveguide, thus change the electromagnetic phase difference in circular waveguide two ends.The refractive index of each metamaterial sheet reduces to two ends gradually from the center of described Meta Materials post, the volume of phase shifter is reduced greatly and can Loss reducing, and phase shift range is wide, cost is low, making is simple.
Description
Technical field
The present invention relates to phase shifter, more particularly, relate to a kind of metamaterial phase shifter.
Background technology
Due to the demand of phase array, being of wide application of high power phase shifter.Existing phase shifter mainly contains following 3 kinds: electron tube phase shifter, dielectric phase shifter, ferrite phase shifter.For electron tube phase shifter, because power capacity is low, use not extensive under ultra high power.Due to needs mechanical adjustment, there is the shortcomings such as governing speed is slow, loss is high, equipment dependability is poor in dielectric phase shifter.Ferrite phase shifter uses high power phase shifter more widely at present stage, the magnetic permeability in ferrite is changed by externally-applied magnetic field pulse, control the wavelength of electromagnetic wave in ferrite, and then change electromagnetic phase place, but device structure is complicated, volume is large, cost is high, temperature stability is poor.
Summary of the invention
The technical problem to be solved in the present invention is, the above-mentioned volume for prior art is large, high in cost of production defect, provides a kind of metamaterial phase shifter.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of metamaterial phase shifter, comprising: rotatable circular waveguide, the Meta Materials post be arranged in described circular waveguide inner chamber;
Described Meta Materials post comprises the multiple metamaterial sheet being laminated for one, the base material that described metamaterial sheet comprises sheet and the multiple man-made microstructure be arranged on base material, same metamaterial sheet refractive index is everywhere identical, and the refractive index of each metamaterial sheet reduces to two ends gradually from the center of described Meta Materials post.
In metamaterial phase shifter of the present invention, also comprising the rotary unit be rotatably connected with described circular waveguide, for rotating described circular waveguide to change the Electric Field Distribution of described circular waveguide, thus changing the electromagnetic phase difference in described circular waveguide two ends.
In metamaterial phase shifter of the present invention, described Meta Materials post and described circular waveguide inner chamber fit tightly.
In metamaterial phase shifter of the present invention, described circular waveguide is hollow metal pipe.
In metamaterial phase shifter of the present invention, described circular waveguide is made up of copper alloy.
In metamaterial phase shifter of the present invention, described man-made microstructure is non-90 degree rotational symmetry structure, makes described Meta Materials post be anisotropy.
In metamaterial phase shifter of the present invention, described man-made microstructure is the planar structure or stereochemical structure that are made up of at least one one metal wire.
In metamaterial phase shifter of the present invention, described wire by etching, plating, bore quarters, photoetching, electronics carve or ion quarter method be attached on base material.
In metamaterial phase shifter of the present invention, described man-made microstructure is " work " font, " ten " font or " H " shape.
In metamaterial phase shifter of the present invention, described base material is obtained by ceramic material, epoxy resin, polytetrafluoroethylene, FR-4 composite material or F4B composite material.
Implement technical scheme of the present invention, there is following beneficial effect: by arranging Meta Materials post in circular waveguide inner chamber, rotational circle waveguide can change the Electric Field Distribution of circular waveguide, thus change the electromagnetic phase difference in circular waveguide two ends.Due to the anisotropy of Meta Materials post, different dielectric constants is shown for different Electric Field Distribution, thus show as different refractive indexes, finally result in the change of the electromagnetic phase difference in circular waveguide two ends.The refractive index of each metamaterial sheet reduces to two ends gradually from the center of described Meta Materials post, the volume of phase shifter is reduced greatly and can Loss reducing, and phase shift range is wide, cost is low, making is simple.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the metamaterial phase shifter according to one embodiment of the invention;
Fig. 2 is the structural representation of the Meta Materials post 12 shown in Fig. 1.
Embodiment
Fig. 1 is the structural representation of the metamaterial phase shifter according to one embodiment of the invention.As shown in Figure 1, metamaterial phase shifter 10 comprises: rotatable circular waveguide 11, the Meta Materials post 12 be arranged in circular waveguide 11 inner chamber.About Meta Materials post 12 structure as shown in Figure 2.
Meta Materials post 12 comprises the multiple metamaterial sheet 121 being laminated for one, and the base material 121a that metamaterial sheet 121 comprises sheet and the multiple man-made microstructure 121b be arranged on base material 121a, man-made microstructure 121 is uniformly distributed.Same metamaterial sheet 121 refractive index n is everywhere identical, and the refractive index n of each metamaterial sheet 121 reduces to two ends gradually from the center of Meta Materials post 12.Such as, the refractive index of Meta Materials post 12 center is 6, and the refractive index at two ends is 1, is increased to 6 from two ends gradually to refractive index of the centre from 1, and the change gradually of refractive index n is conducive to Loss reducing.Largest refractive index differs larger with minimum refractive index, and the size of the phase shifter so made will be less.The quantity of the metamaterial sheet shown in Fig. 2 is only signal, not as limitation of the present invention, can arrange according to the size of circular waveguide.
Circular waveguide 11 in Fig. 1 is rotatable, in order to realize rotating, except the component shown in Fig. 1, also comprise the rotary unit (not shown) be rotatably connected with circular waveguide 11, for rotational circle waveguide 11 to change the Electric Field Distribution of circular waveguide 11, thus change the electromagnetic phase difference in circular waveguide 11 two ends, reach the object of phase shift.About how to arrange rotary unit and by which kind of mode realize rotating, the present invention does not limit this, can adopt the technology of existing maturation, such as rotating shaft etc.
For circular waveguide 11, can adopt the circular waveguide of any kind used at present, can be such as hollow metal pipe etc., circular waveguide 11 can be made up of any metal materials such as copper, copper alloy, aluminium, aluminium alloys.As seen from Figure 1, Meta Materials post 12 fits tightly with the inner chamber of circular waveguide 11.Can certainly arrange as required, concrete the two how to assemble or the two whether Integral design, the present invention does not limit.
Man-made microstructure 121b is non-90 degree rotational symmetry structure, makes Meta Materials post 12 in anisotropy.Such as, man-made microstructure is the planar structure or stereochemical structure that are made up of at least one one metal wire, can be " work " font, " ten " font or " H " shape wire by etching, plating, bore quarters, photoetching, electronics carve or the method at ion quarter is attached on base material.Shown in Fig. 2 is " work " font man-made microstructure, is only signal here, not as limitation of the present invention.Base material 121a can be obtained by ceramic material, epoxy resin, polytetrafluoroethylene, FR-4 composite material or F4B composite material.
By arranging Meta Materials post in circular waveguide inner chamber, rotational circle waveguide can change the Electric Field Distribution of circular waveguide, thus changes the electromagnetic phase difference in circular waveguide two ends.Due to the anisotropy of Meta Materials post, different dielectric constants is shown for different Electric Field Distribution, thus show as different refractive indexes, finally result in the change of the electromagnetic phase difference in circular waveguide two ends.The refractive index of each metamaterial sheet reduces to two ends gradually from the center of described Meta Materials post, the volume of phase shifter is reduced greatly and can Loss reducing, and phase shift range is wide, cost is low, making is simple.
Phase shifter of the present invention is widely used, and can be applied in antenna for base station or radar antenna.By technical scheme of the present invention, the change of phase place can be realized easily, thus Change Example is as base station phase array, causes the change in aerial radiation direction, make antenna for base station or Radar Antenna Directionality better.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (10)
1. a metamaterial phase shifter, is characterized in that, comprising: rotatable circular waveguide, the Meta Materials post be arranged in described circular waveguide inner chamber;
Described Meta Materials post comprises the multiple metamaterial sheet being laminated for one, the base material that described metamaterial sheet comprises sheet and the multiple man-made microstructure be arranged on base material, same metamaterial sheet refractive index is everywhere identical, and the refractive index of each metamaterial sheet reduces to two ends gradually from the center of described Meta Materials post.
2. metamaterial phase shifter according to claim 1, it is characterized in that, also comprising the rotary unit be rotatably connected with described circular waveguide, for rotating described circular waveguide to change the Electric Field Distribution of described circular waveguide, thus changing the electromagnetic phase difference in described circular waveguide two ends.
3. metamaterial phase shifter according to claim 1, is characterized in that, described Meta Materials post and described circular waveguide inner chamber fit tightly.
4. metamaterial phase shifter according to claim 1, is characterized in that, described circular waveguide is hollow metal pipe.
5. metamaterial phase shifter according to claim 1, is characterized in that, described circular waveguide is made up of copper alloy.
6. metamaterial phase shifter according to claim 1, is characterized in that, described man-made microstructure is non-90 degree rotational symmetry structure, makes described Meta Materials post be anisotropy.
7. metamaterial phase shifter according to claim 6, is characterized in that, described man-made microstructure is the planar structure be made up of at least one one metal wire.
8. metamaterial phase shifter according to claim 7, is characterized in that, described wire by etching, plating, bore quarters, photoetching, electronics carve or ion quarter method be attached on base material.
9. metamaterial phase shifter according to claim 7, is characterized in that, described man-made microstructure is " work " font, " ten " font or " H " shape.
10. metamaterial phase shifter according to claim 1, is characterized in that, described base material is obtained by ceramic material, epoxy resin, polytetrafluoroethylene, FR-4 composite material or F4B composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110360940.8A CN103107386B (en) | 2011-09-29 | 2011-09-29 | Metamaterial phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110360940.8A CN103107386B (en) | 2011-09-29 | 2011-09-29 | Metamaterial phase shifter |
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| Publication Number | Publication Date |
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| CN103107386A CN103107386A (en) | 2013-05-15 |
| CN103107386B true CN103107386B (en) | 2016-01-13 |
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| CN201110360940.8A Active CN103107386B (en) | 2011-09-29 | 2011-09-29 | Metamaterial phase shifter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016112582A1 (en) * | 2016-07-08 | 2018-01-11 | Lisa Dräxlmaier GmbH | Phased array antenna element |
| DE102016112581A1 (en) | 2016-07-08 | 2018-01-11 | Lisa Dräxlmaier GmbH | Phased array antenna |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524316A (en) * | 2001-06-14 | 2004-08-25 | M/A-Com | Compact high power analog electrically controlled phase shifter |
| CN101030665A (en) * | 2007-03-20 | 2007-09-05 | 浙江大学 | Differential phase shifter based on artificial electromagnetic composite transmission line |
| CN101473489A (en) * | 2006-06-26 | 2009-07-01 | Kmw株式会社 | Variable phase shifter |
| US7719477B1 (en) * | 2007-10-31 | 2010-05-18 | Hrl Laboratories, Llc | Free-space phase shifter having one or more columns of phase shift devices |
| FR2949609A1 (en) * | 2009-08-25 | 2011-03-04 | Thales Sa | Active reflectarray antenna, has radiation cells sending signal with phase shift, and piston formed by head that is positioned such that length between input of waveguide and head defines value of phase shift of sent signal |
| WO2011036243A1 (en) * | 2009-09-25 | 2011-03-31 | Technische Universität Darmstadt | Phase shifter for high-frequency signals |
-
2011
- 2011-09-29 CN CN201110360940.8A patent/CN103107386B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524316A (en) * | 2001-06-14 | 2004-08-25 | M/A-Com | Compact high power analog electrically controlled phase shifter |
| CN101473489A (en) * | 2006-06-26 | 2009-07-01 | Kmw株式会社 | Variable phase shifter |
| CN101030665A (en) * | 2007-03-20 | 2007-09-05 | 浙江大学 | Differential phase shifter based on artificial electromagnetic composite transmission line |
| US7719477B1 (en) * | 2007-10-31 | 2010-05-18 | Hrl Laboratories, Llc | Free-space phase shifter having one or more columns of phase shift devices |
| FR2949609A1 (en) * | 2009-08-25 | 2011-03-04 | Thales Sa | Active reflectarray antenna, has radiation cells sending signal with phase shift, and piston formed by head that is positioned such that length between input of waveguide and head defines value of phase shift of sent signal |
| WO2011036243A1 (en) * | 2009-09-25 | 2011-03-31 | Technische Universität Darmstadt | Phase shifter for high-frequency signals |
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| CN103107386A (en) | 2013-05-15 |
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