CN116565570B - Novel polarization insensitive metamaterial resonator with mirror symmetry configuration - Google Patents
Novel polarization insensitive metamaterial resonator with mirror symmetry configuration Download PDFInfo
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- 230000010287 polarization Effects 0.000 title claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011889 copper foil Substances 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
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- 238000006880 cross-coupling reaction Methods 0.000 description 1
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Classifications
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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
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention belongs to the technical field of artificial electromagnetic materials, in particular to a novel polarization insensitive metamaterial resonator with mirror symmetry configuration, which consists of a substrate and a quadruple coupling split resonant ring, wherein the quadruple coupling split resonant ring is formed by connecting four coupling split resonant ring units which are mirror symmetry through an X-shaped copper foil strip, and the coupling split resonant ring is formed by nesting and interconnecting two circular split resonant rings and a square split resonant ring. The novel polarization insensitive metamaterial resonator with mirror symmetry configuration provided by the invention has six resonance points by covering S, C and X wave bands with the transmission coefficient (S21), realizes tunable resonance frequency by adjusting the coverage area of the resonance region, and has wide application prospects in the fields of microwaves and communication.
Description
Technical Field
The invention relates to the technical field of artificial electromagnetic materials, in particular to a novel polarization insensitive metamaterial resonator with mirror symmetry configuration. The metamaterial is a special structure different from a natural material, and can realize accurate regulation and control of electromagnetic waves under a macroscopic scale. The resonator is a circuit element capable of achieving a resonance phenomenon at a specific frequency. Metamaterial resonators integrate the technologies of the two fields, so that the metamaterial resonators are widely applied to the fields of microwaves, communication and the like.
Background
Metamaterials are novel composite materials which are manufactured manually and are formed by periodically or aperiodically arranging basic units with specific geometric shapes and specific materials in space, and the specific functions of the metamaterials depend on the structures of the basic units. The metamaterial has extraordinary electromagnetic characteristics such as negative dielectric constant, negative magnetic permeability, negative refractive index and the like, and thus, the metamaterial is widely focused in the fields of radio frequency and near infrared spectrums.
Because of the periodic arrangement of sub-wavelength meta-atoms, metamaterial-based artificial structures have the ability to control and manipulate electromagnetic wave amplitude, phase and polarization; however, at certain resonant frequencies, it is still difficult to achieve a single or double negative design of the metamaterial structure.
Furthermore, once the structure is fixedly manufactured, the lack of adjustability limits the frequency at which it can operate, thereby limiting its flexibility in use.
Thus, research into various metamaterial structures and frequency tuning techniques are necessary conditions for achieving multi-band wireless communications.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a novel polarization insensitive metamaterial resonator with mirror symmetry configuration, and double negative dielectric constants and magnetic permeability are realized at six resonance points of the resonator, so that the resonance effect is achieved; in addition, the sandwich structure of the resonator can realize the adjustability of the resonance point by adjusting the coverage area of the substrate above, thereby solving the problems in the prior art.
(II) technical scheme
The invention adopts the following technical scheme for realizing the purposes:
A novel polarization insensitive metamaterial resonator with mirror symmetry configuration is composed of a substrate and a quadruple coupling split resonant ring, wherein the quadruple coupling split resonant ring is formed by connecting four coupling split resonant ring units which are mirror symmetry through an X-shaped copper foil strip, and the coupling split resonant ring is formed by nesting and interconnecting two circular split resonant rings and a square split resonant ring.
Further, the grooves of the two circular opening resonant rings are in a complementary state, and the grooves of the square resonant rings are all over;
Further, the substrate is comprised of 10 x 1.575mm Rogers 5880;
Further, the quadruple coupling split resonant ring is composed of copper foil with the thickness of 0.035 mm.
Further, the circular split ring resonator and square split ring resonator gap is 0.4mm.
Further, the novel polarization insensitive metamaterial resonator with mirror symmetry configuration generates six resonance points at S, C and X-band.
Further, the novel polarization insensitive metamaterial resonator with mirror symmetry configuration is equivalent to an actual LC circuit diagram.
Furthermore, the novel polarization insensitive metamaterial resonator with mirror symmetry is in a sandwich structure, and the resonance point is adjustable by adjusting the coverage area above the novel polarization insensitive metamaterial resonator.
(III) beneficial effects
Compared with the prior art, the invention provides the novel polarization insensitive metamaterial resonator with mirror symmetry configuration, which has the following beneficial effects:
The resonance unit in the electromagnetic absorption metamaterial is made of a metal material and has the following advantages: the preparation is easy, the metal is a common material, the acquisition, the treatment and the processing are easy, and the complexity and the cost of the preparation process are reduced; high conductivity: the metal has good conductivity, can effectively absorb incident electromagnetic waves and convert the incident electromagnetic waves into current and heat energy.
The novel polarization insensitive metamaterial resonator with mirror symmetry configuration provided by the invention is characterized in that three different defect ring resonators are selected and nested together, and the transmission coefficient (S21) of the novel polarization insensitive metamaterial resonator is covered with S, C and X wave bands by utilizing local surface plasmon resonance of metal, so that the novel polarization insensitive metamaterial resonator has six resonance points. The resonator utilizes the resonance point to enable a certain or a certain section of frequency signals to pass through, and blocks other frequency signals so as to achieve the purpose of selection, when the frequency of the signals is equal to the natural frequency of the resonator, the signals pass through smoothly, when the frequency of the signals is too far different from the frequency of the resonator, the signals are blocked, the resonance point is in different wave bands, the application scenes are different, and the resonance point can be used for relay, satellite communication and radar in the S wave band; the resonance point is in the C wave band and is used for transmitting signals in the downlink of the communication satellite; the resonance point is in the X band, and can be applied to space research, broadcast satellites, earth detection satellites, meteorological satellites and the like.
The coverage area of the resonance area is adjusted to realize tunable resonance frequency, the application requirements of different frequencies can be met by the resonance, the performance requirements of quality factors, low loss and the like can be improved, and in addition, the frequency is adjustable, so that the metamaterial resonator can improve the performance and reliability of devices such as a filter, an antenna, a power amplifier, an oscillator and the like.
Drawings
FIG. 1 is a 3D diagram of a metamaterial resonator in accordance with the present invention;
FIG. 2 is a front view of a super surface resonator patch of the present invention;
FIG. 3 is a graph of S21 parameters of a metamaterial resonator in accordance with the present invention;
FIG. 4 is an ADS equivalent circuit diagram of a metamaterial resonator in accordance with the present invention;
FIG. 5 is a diagram showing a comparison of circuit simulation and CST three-dimensional structure simulation in S21 parameter ADS of the present invention;
FIG. 6 is a sandwich structure of the present invention;
FIG. 7 is a simulation diagram of S21 parameters of a sandwich structure with different coverage areas according to the present invention;
Fig. 8 is a graph comparing actual measurements of the present invention with the transmission coefficient (S21) parameters of the CST simulation.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1, a novel polarization insensitive metamaterial resonator with mirror symmetry configuration provided by an embodiment of the present invention is composed of a substrate and a quadruple coupling split resonant ring, wherein the quadruple coupling split resonant ring is formed by connecting four coupling split resonant ring units which are mirror symmetry through an X-shaped copper foil strip, and due to a mirror symmetry structure, the cross coupling effect between the coupling split resonant units is eliminated, so that the resonance deviation between the resonant units and the quadruple coupling split resonant ring is minimized, the coupling split resonant ring is nested and interconnected by two circular split resonant rings and a square split resonant ring, and the split resonant ring can form a resonant loop at a specific frequency, so that microwave signals can be transmitted or amplified; the use of a circular split resonator ring has the following advantages: the circular geometry has symmetry, thus more uniform electric and magnetic field distribution can be achieved; secondly, the resonant frequency of the circular open resonant ring is related to the diameter of the ring, the resonant frequency can be adjusted by controlling the size of the ring, and the square open resonant ring has the advantages that: the square geometric shape has simpler structure and symmetry, the square split resonant ring is easier to carry out numerical simulation and optimal design than a round shape, the round split resonant ring and the square split resonant ring are nested together, the multilayer structure can have resonance of a plurality of frequency points, the more the resonant points are, the wider the coverage wave Duan Yue is, and the more the application range and the scene are.
As shown in fig. 1, in some embodiments, the slots of two circular open resonator rings are complementary, and the square resonator rings are all slotted to the inside; when the circular open resonator ring slots are complementary and the square resonator ring slots are both inward, the transmission channel narrows, the energy is highly concentrated and stored, the quality factor is improved, and the loss and leakage blocking effect are improved.
As shown in fig. 1, in some embodiments, the substrate is formed by Rogers5880 with 10×10×1.575mm, the material has uniform electrical performance in a wide frequency range, low hygroscopicity, and can be suitable for a high humidity environment, and in addition, since the working frequency band of the invention is 2-12GHz, rogers5880 with good performance in a high frequency region is used as the substrate, and the size of the substrate is 1010mm2, so that the wavelength of the quadruple coupling opening resonant ring relative to the target frequency range is small enough.
As shown in fig. 2, in some embodiments, the quadruple-coupled split ring resonator is comprised of copper foil having a thickness of 0.035 mm; firstly, because the frequency of the resonator is related to the geometric dimension and the dielectric constant of the resonator, the equivalent capacitance of the resonator can be reduced by adopting a thinner copper sheet, so that the resonant frequency is improved, and secondly, the metal resistance loss of the resonator can be reduced by adopting a thinner copper foil, the quality factor of the resonator is improved, and the attenuation of signals is reduced.
As shown in fig. 2, in some embodiments, the circular split ring and square split ring gap is 0.4mm; in the simulation, the metamaterial resonator is optimized by adjusting and changing the sizes and the split gaps of the circular ring and the square, and the resonator can reach the optimal response when the gap of the resonant ring is 0.4 mm.
As shown in fig. 3, in some embodiments, the novel polarization insensitive metamaterial resonator with a mirror symmetrical configuration produces six resonance points at S, C and X-band; as shown in FIG. 3, S21 simulation parameter results in CST simulation show that resonance occurs at 2.457GHz, 4.267GHz,6.874GHz,8.986GHz,10.702GHz and 11.640 GHz respectively, the purpose of the metamaterial resonator is to achieve efficient electromagnetic wave transmission or energy conversion in a specific frequency range, more resonance points are generated, the frequency bandwidth and the sensitivity of the resonator can be increased, the performance and the application range of the resonator are improved, in addition, selective filtering and amplification of different frequencies can be achieved by properly designing the positions and the intensities of the resonance points, and six resonance points can be generated by optimizing and adjusting an open resonance ring. The metamaterial resonator has wide application in the fields of microwaves and communication by utilizing the resonance point, and is used in the fields of microwaves: the metamaterial resonator can be used for designing a tunable filter, and frequency adjustability is achieved by changing parameters of a capacitive or inductive element; the microstrip antenna can be used as a basic unit of the microstrip antenna, and the design and adjustment of the resonator can enable the microstrip antenna to have various excellent characteristics; can be used for microwave sensors, such as humidity, temperature or pressure sensors, which can be used for medical treatment, safety and control. In the communication field: metamaterial resonators can be used to design high performance filters that can effectively filter unwanted frequency components, thereby improving the bandwidth and noise immunity of the communication system.
As shown in fig. 4, in some embodiments, the novel polarization insensitive metamaterial resonator with a mirror symmetric configuration is equivalent to a practical LC circuit diagram; the circuit diagram can simplify a complex physical structure into a circuit model containing few elements, analysis and design are convenient, and the performances of frequency, broadband, response and the like of the resonator can be controlled and regulated more accurately by calculating, simulating and optimizing parameters and characteristics of the equivalent circuit.
As shown in fig. 5, in some embodiments, the novel polarization insensitive metamaterial resonator with mirror symmetry configuration is in a sandwich structure, and the resonance point is adjustable by adjusting the coverage area above; the lack of adjustability limits the flexibility of practical application, in practical application, once errors are manufactured, the working frequency is fixed, and the sandwich metamaterial resonator provided by the inventor has the advantages of bandwidth expansion, signal enhancement and frequency modulation by adjusting the coverage area of the upper substrate to realize translation of the resonance point; when electromagnetic waves are emitted, the incident field interacts with the substrate on the metamaterial resonator, and the substrate on the resonator affects the effective dielectric constant of the whole structure, so that the resonant frequency changes, and the effective dielectric constant of the whole structure also changes along with the change of the coverage area of the medium, thereby realizing the adjustability of the resonant point.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A novel polarization insensitive metamaterial resonator with mirror symmetry configuration, characterized in that: the substrate is composed of Rogers5880 with the thickness of 10X 1.575 mm, the quadruple coupling split resonant ring is composed of copper foil with the thickness of 0.035mm, the quadruple coupling split resonant ring is formed by connecting four coupling split resonant ring units which are in mirror symmetry through an X-shaped copper foil strip, the coupling split resonant ring is formed by nesting and interconnecting two circular split resonant rings and one square split resonant ring, grooves of the two circular split resonant rings are in a complementary state, grooves of the square resonant rings are all over, and a gap between the circular split resonant ring and the square split resonant ring is 0.4mm; the arrangement sequence of the two circular split-ring resonators and the square split-ring resonator from outside to inside of the coupling split-ring resonator unit is a circular split-ring resonator-circular split-square split-ring resonator; the novel polarization insensitive metamaterial resonator with mirror symmetry is arranged on a sandwich structure, a substrate is placed on the metamaterial resonator structure, and the adjustable resonance point is realized by adjusting the coverage area of the substrate.
2. A novel polarization insensitive metamaterial resonator with mirror-symmetrical arrangement as claimed in claim 1, wherein: the novel polarization insensitive metamaterial resonator with mirror symmetry configuration generates six resonance points in S, C and X wave bands.
3. A novel polarization insensitive metamaterial resonator with mirror-symmetrical arrangement as claimed in claim 1, wherein: the novel polarization insensitive metamaterial resonator with mirror symmetry configuration is equivalent to a practical LC circuit diagram.
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