CN103715477A - Microwave frequency band three-frequency-point polarization-independent 90-degree polarized revolver and application thereof - Google Patents
Microwave frequency band three-frequency-point polarization-independent 90-degree polarized revolver and application thereof Download PDFInfo
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Abstract
The invention discloses a microwave frequency band three-frequency-point polarization-independent 90-degree polarized revolver and application thereof. The revolver comprises a medium substrate. The upper surface of the medium substrate is provided with an upper layer metal structure, while the lower surface of the medium substrate is provided with a lower layer metal structure. Each of the upper layer metal structure and the lower layer metal structure is formed by four electric field coupling resonance structures which are identical in shape and are arranged in a 90-degree rotationally symmetric manner. The electric field coupling resonance structures of the upper layer metal structure are turned around by 45 degrees with respect to the electric field coupling resonance structures of the lower layer metal structure. According to the invention, chiral meta-material structures with a 90-degree rotationally symmetric characteristic are employed so that various layers of media and different paster structures are not needed and the structure is simple. At the same time, the electric field coupling resonance structures are adopted so that the 90-degree polarized revolver is enabled to work at three frequency points of a microwave frequency band and the practicality of related devices is substantially improved.
Description
Technical field:
The invention belongs to microwave technical field, particularly a kind of 90 degree polarization rotating joints.
Background technology:
90 degree polarization rotating joints, have the characteristic of the linear polarization ejected wave polarization orientation angle 90-degree rotation entering, and can be applied in the systems such as remote sensing, radio communication.Traditional microwave frequency band 90 degree polarization rotating joints comprise the metal wire structure that U-shaped is structural and Yuqian Ye proposes that Chen Huang proposes.The former realizes double frequency 90 degree polarization rotating joints at the U-shaped metal resonance structures of the different sizes of dielectric surface etching, but the line polarization wave effect that it can only be to particular polarization angle; The latter is in dielectric surface etching rectangle metal wire structure, by metal wire is arranged and is made its line polarization wave to difference polarization angle have response by 90 degree rotational symmetry structures, but this structure can only, in single-frequency point work, cannot meet the needs of multiple frequency band system.
Summary of the invention:
The object of the present invention is to provide frequency polarized irrelevant 90 degree polarization rotating joint and the application thereof of a kind of microwave frequency band three, to solve the problems of the technologies described above; The frequency polarized irrelevant 90 degree polarization rotating joint function admirables of this microwave frequency band three, can be operated in three frequencies at microwave frequency band, and insensitive to incident ray polarized wave polarization angle.
To achieve these goals, the present invention adopts following technical scheme:
The frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three, comprise medium substrate; The upper surface of medium substrate is provided with upper strata metal structure, and lower surface is provided with lower metal structure; Upper strata metal structure is arranged and is formed by 90 degree Rotational Symmetry forms by four identical field coupled resonance structures of shape with lower metal structure; The field coupled resonance structure of upper strata metal structure is spent with the field coupled resonance structure relative torsion 45 of corresponding lower metal structure.
The present invention further improves and is: field coupled resonance structure comprises annulus and is symmetricly set in two T shape metal wires in annulus; T shape metal wire comprises the first metal wire connected vertically and the second metal wire mutually; Two T shape metal wires are symmetricly set in annulus, and two the first metal wire intervals arrange, and second metal wire one end connects the first metal wire, and the other end connects annulus.
The present invention further improves and is: the thickness of medium substrate is h, and width and length are h1; The radius of annulus is r, and the width of annulus is w1; The width of the first metal wire is w2, and the length of the first metal wire is w3, and the width of the second metal wire is w4, and the gap width between two the first metal wires is g; H:h1:r:w1:w2:w3:w4:g=3.18:14:3:0.4:1.3:3.1:0.1:0.1.
The present invention further improves and is: h=3.18mm, h1=14mm, r=3mm, w1=0.4mm, w2=1.3mm, w3=3.1mm, w4=0.1mm, g=0.1mm.
The present invention further improves and is: four field coupled resonance structures of upper strata metal structure and lower metal structure are all arranged by 90 degree Rotational Symmetry forms, forms a kind of to entering the super material of the linear polarization ejected wave polarization insensitive chirality of angle.
The present invention further improves and is: annulus position corresponding in upper strata metal structure and lower metal structure overlaps.
The present invention further improves and is: described medium substrate is Taconic RF-60, and its relative dielectric constant is 6.18.
The present invention further improves and is: the frequency polarized irrelevant 90 degree polarization rotating joints of described microwave frequency band three are all greater than 0.9 at three frequency 9.7GHz, 11.53GHz of microwave frequency band and the cross polarization transmission coefficient of 13.53GHz, same polarization transmission coefficient is all less than 0.15, polarized rotation angle is greater than 85 degree, and ovality is less than 1 degree.
Frequency polarized irrelevant 90 application of degree polarization rotating joint in preparing antenna of a kind of microwave frequency band three.
The present invention further improves and is: described antenna is Variable Polarization Antenna.
Compared with prior art, the present invention has following useful technique effect:
The present invention adopts the chirality metamaterial structure with 90 degree Rotational Symmetry characteristics, do not need multilayer dielectricity and different paster structure, simple in structure, simultaneously, the present invention adopts field coupled resonance structure, can make 90 degree polarization rotating joints be operated in three frequencies of microwave frequency band, greatly increase the practicality of related device.In addition, by field coupled resonance structure is arranged by 90 degree Rotational Symmetry forms, 90 related degree plan circulators are had the insensitive characteristic of incident ray polarized wave polarization angle, practicality is stronger.The frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three of the present invention are simple in structure, can be operated in multiband, insensitive to incident ray polarized wave polarization angle, have a good application prospect.
The frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three of the present invention can be widely used in Antenna Design to realize Variable Polarization Antenna.
Accompanying drawing explanation
Fig. 1 is the superstructure schematic diagram of the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three of the present invention;
Fig. 2 is the understructure schematic diagram of the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three of the present invention;
Fig. 3 is the field coupled resonance structure schematic diagram of the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three of the present invention;
Fig. 4 is the amplitude-frequency characteristic simulation result figure of the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three described in the specific embodiment of the invention;
Fig. 5 is gyrobearing angle and the ovality simulation result figure based on the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three described in the specific embodiment of the invention.
Wherein, 1 is upper strata metal structure; 2 is lower metal structure; 3 is medium substrate; 4 is field coupled resonance structure.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
Referring to Fig. 1 and Fig. 2, the frequency polarized irrelevant 90 degree polarization rotating joints of a kind of microwave frequency band three of the present invention, comprise medium substrate 3, at the upper surface of medium substrate 3, are etched with upper strata metal structure 1, and lower surface is etched with lower metal structure 2.Upper strata metal structure 1 is arranged and is formed by 90 degree Rotational Symmetry forms by four identical field coupled resonance structures of shape with lower metal structure 2; Upper strata metal structure 1 and lower metal structure 2 consistencies from top to bottom, and corresponding field coupled resonance structure relative torsion 45 degree.
The operation principle of the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three provided by the invention is as follows:
According to Jones matrix, calculate and illustrate to have the structure of 90 degree Rotational Symmetry characteristics, its response is irrelevant with the polarization angle of linear polarization incident wave.The present invention has the field coupled resonance structure of 90 degree Rotational Symmetry characteristics in the upper and lower surface etch of medium substrate 3, make 90 related degree polarization rotating joints under the line polarization wave incident of any polarizing angle degree, can be by the polarization angle 90-degree rotation of incident wave.
The frequency polarized irrelevant 90 degree polarization rotating joints of related microwave frequency band three, can produce response at three frequencies of microwave frequency band, and at these three frequencies effectively by the polarization angle 90-degree rotation of linear polarization incident wave.
Through simulation analysis, the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three of the present invention can be at three frequency 9.7GHz, 11.53GHz of microwave frequency band and 13.53GHz by the polarization angle 90-degree rotation of the incident ray polarized wave of the angle that polarizes arbitrarily.
The metal that the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three provided by the invention adopt is copper, and medium substrate 3 is Taconic RF-60, and its relative dielectric constant is 6.18, and dielectric-slab thickness h is 3.18mm, and cell size is 14mm * 14mm; Related field coupled resonance structure 4, comprises annulus 41 and two T shape metal wires 42; T shape metal wire 42 comprises the first metal wire 421 and the second metal wire 422; Two T shape metal wires 42 are symmetricly set in annulus 41, and the spacing between two the first metal wires 421 is g, and the second metal wire 422 connects corresponding the first metal wire 421 and annulus 41; Whole field coupled resonance structure 4 is symmetrical arranged along the center line in space between two the first metal wires 421, and whole field coupled resonance structure 4 is symmetrical along the center line of two the second metal wires 422 simultaneously.Physical dimension parameter is respectively, the radius r=3mm of annulus 41, the width w1=0.4mm of annulus 41, the width w2=1.3mm of the first metal wire 421, the length w3=3.1mm of the first metal wire 421, the width w4=0.1mm of the second metal wire 422, g=0.1mm.Corresponding the upper and lower field coupled resonance structure coincides with the upper and lower, blank medium substrate thickness, and relative torsion 45 degree.
The frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three provided by the invention, its amplitude-frequency characteristic simulation result as shown in Figure 4.This structure is greater than 0.9 at three frequency 9.7GHz, 11.53GHz of microwave frequency band and the cross polarization transmission coefficient of 13.53GHz, shows that its efficiency is greater than 90%; Its same polarization transmission coefficient is all less than 0.15 at 9.7GHz, 11.53GHz and 13.53GHz, shows that it has carried out effective inhibition to same polarization.
The frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three provided by the invention, its polarized rotation angle and ovality are as shown in Figure 5.As can be seen from this figure, frequency 9.7GHz, 11.53GHz and 13.53GHz place, its polarized rotation angle is greater than 85 degree, and ovality is less than 1 degree.This shows, at 9.7GHz, 11.53GHz and tri-frequency places of 13.53GHz, and the frequency polarized irrelevant 90 degree polarization rotating joint excellent working performance of related microwave frequency band three, practical.
In sum, the method for designing of the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three provided by the invention, adopted the field coupled resonance structure of the torsion with 90 degree Rotational Symmetry characteristics, designed a kind of simple in structure, three frequency ranges that can be operated in microwave band, and can be by the polarization angle 90-degree rotation of the linear polarization incident wave of the angle that polarizes arbitrarily.This artificial magnetic conductor can be widely used in Antenna Design to realize Variable Polarization Antenna.
Above content is the further description of the present invention being done in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to claims of being submitted to by the present invention and determine scope of patent protection.
Claims (10)
1. the frequency polarized irrelevant 90 degree polarization rotating joints of microwave frequency band three, is characterized in that, comprise medium substrate (3); The upper surface of medium substrate (3) is provided with upper strata metal structure (1), and lower surface is provided with lower metal structure (2); Upper strata metal structure (1) is arranged and is formed by 90 degree Rotational Symmetry forms by identical four the field coupled resonance structures (4) of shape with lower metal structure (2); The field coupled resonance structure of upper strata metal structure (1) is spent with the field coupled resonance structure relative torsion 45 of corresponding lower metal structure (2).
2. the frequency polarized irrelevant 90 degree polarization rotating joints of a kind of microwave frequency band three according to claim 1, is characterized in that, field coupled resonance structure (4) comprises annulus (41) and is symmetricly set in two the T shape metal wires (42) in annulus (41); T shape metal wire (42) comprises the first metal wire connected vertically (421) and the second metal wire (422) mutually; Two T shape metal wires (42) are symmetricly set in annulus (41), and two the first metal wires (421) interval arranges, and the second metal wire (422) one end connects the first metal wire (421), and the other end connects annulus (41).
3. the frequency polarized irrelevant 90 degree polarization rotating joints of a kind of microwave frequency band three according to claim 2, is characterized in that, the thickness of medium substrate (3) is h, and width and length are h1; The radius of annulus (41) is r, and the width of annulus (41) is w1; The width of the first metal wire (421) is w2, and the length of the first metal wire (421) is w3, and the width of the second metal wire (422) is w4, and the gap width between two the first metal wires (421) is g; H:h1:r:w1:w2:w3:w4:g=3.18:14:3:0.4:1.3:3.1:0.1:0.1.
4. the frequency polarized irrelevant 90 degree polarization rotating joints of a kind of microwave frequency band three according to claim 3, is characterized in that h=3.18mm, h1=14mm, r=3mm, w1=0.4mm, w2=1.3mm, w3=3.1mm, w4=0.1mm, g=0.1mm.
5. a kind of microwave frequency band three according to claim 1 frequency polarized irrelevant 90 is spent polarization rotating joints, it is characterized in that, four field coupled resonance structures (4) of upper strata metal structure (1) and lower metal structure (2) are all arranged by 90 degree Rotational Symmetry forms, form the super material of a kind of chirality.
6. the frequency polarized irrelevant 90 degree polarization rotating joints of a kind of microwave frequency band three according to claim 2, is characterized in that, the upper corresponding annulus position of upper strata metal structure (1) and lower metal structure (2) overlaps.
7. the frequency polarized irrelevant 90 degree polarization rotating joints of a kind of microwave frequency band three according to claim 1, is characterized in that, described medium substrate (3) is Taconic RF-60, and its relative dielectric constant is 6.18.
8. a kind of microwave frequency band three according to claim 1 frequency polarized irrelevant 90 is spent polarization rotating joints, it is characterized in that, the frequency polarized irrelevant 90 degree polarization rotating joints of described microwave frequency band three are all greater than 0.9 at three frequency 9.7GHz, 11.53GHz of microwave frequency band and the cross polarization transmission coefficient of 13.53GHz, same polarization transmission coefficient is all less than 0.15, polarized rotation angle is greater than 85 degree, and ovality is less than 1 degree.
9. frequency polarized irrelevant 90 application of degree polarization rotating joint in preparing antenna of a kind of microwave frequency band three described in any one in claim 1 to 8.
10. application according to claim 9, is characterized in that, described antenna is Variable Polarization Antenna.
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Cited By (9)
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| CN104638321A (en) * | 2015-01-24 | 2015-05-20 | 西安电子科技大学 | Polarization transformer based on multilayer frequency selection surface |
| CN106299572A (en) * | 2016-08-24 | 2017-01-04 | 中国工程物理研究院电子工程研究所 | A kind of novel waveguide polarization mode conversion diaphragm structure being applied to Terahertz frequency range |
| CN108054516A (en) * | 2017-05-17 | 2018-05-18 | 南京康沙科技有限公司 | The frequency-selective surfaces that a kind of frequency response is stablized |
| CN108511918A (en) * | 2018-03-13 | 2018-09-07 | 东北石油大学 | Electromagnetic wave asymmetric transmission controller based on Meta Materials |
| CN109256621A (en) * | 2018-11-28 | 2019-01-22 | 东南大学 | A kind of tunable chiral unit, Meta Materials and the application method of PIN-based diode |
| CN109687161A (en) * | 2018-12-29 | 2019-04-26 | 电子科技大学 | A kind of rotary-type broadband ultra wide band transmissive arrays antenna of low RCS polarization |
| CN110690578A (en) * | 2018-07-06 | 2020-01-14 | 中国航空工业集团公司济南特种结构研究所 | Wave absorbing structure for solving problem that wave transmittance of antenna housing test for electronic warfare exceeds hundred |
| CN113451720A (en) * | 2021-05-24 | 2021-09-28 | 上海理工大学 | Reflection-type terahertz comb filter |
| CN115020988A (en) * | 2022-08-05 | 2022-09-06 | 盛纬伦(深圳)通信技术有限公司 | Tunable multi-polarization-conversion chiral metamaterial unit and array |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638321A (en) * | 2015-01-24 | 2015-05-20 | 西安电子科技大学 | Polarization transformer based on multilayer frequency selection surface |
| CN104638321B (en) * | 2015-01-24 | 2017-10-24 | 西安电子科技大学 | Polarization converter based on Multilayer Frequency-Selective Surfaces |
| CN106299572A (en) * | 2016-08-24 | 2017-01-04 | 中国工程物理研究院电子工程研究所 | A kind of novel waveguide polarization mode conversion diaphragm structure being applied to Terahertz frequency range |
| CN108054516A (en) * | 2017-05-17 | 2018-05-18 | 南京康沙科技有限公司 | The frequency-selective surfaces that a kind of frequency response is stablized |
| CN108511918A (en) * | 2018-03-13 | 2018-09-07 | 东北石油大学 | Electromagnetic wave asymmetric transmission controller based on Meta Materials |
| CN110690578A (en) * | 2018-07-06 | 2020-01-14 | 中国航空工业集团公司济南特种结构研究所 | Wave absorbing structure for solving problem that wave transmittance of antenna housing test for electronic warfare exceeds hundred |
| CN109256621A (en) * | 2018-11-28 | 2019-01-22 | 东南大学 | A kind of tunable chiral unit, Meta Materials and the application method of PIN-based diode |
| CN109687161A (en) * | 2018-12-29 | 2019-04-26 | 电子科技大学 | A kind of rotary-type broadband ultra wide band transmissive arrays antenna of low RCS polarization |
| CN113451720A (en) * | 2021-05-24 | 2021-09-28 | 上海理工大学 | Reflection-type terahertz comb filter |
| CN115020988A (en) * | 2022-08-05 | 2022-09-06 | 盛纬伦(深圳)通信技术有限公司 | Tunable multi-polarization-conversion chiral metamaterial unit and array |
| CN115020988B (en) * | 2022-08-05 | 2022-10-25 | 盛纬伦(深圳)通信技术有限公司 | Tunable multi-polarization-conversion chiral metamaterial unit and array |
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Application publication date: 20140409 |