CN108281799A - A kind of left-handed material of two dimension matrix pattern - Google Patents
A kind of left-handed material of two dimension matrix pattern Download PDFInfo
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- CN108281799A CN108281799A CN201711492675.2A CN201711492675A CN108281799A CN 108281799 A CN108281799 A CN 108281799A CN 201711492675 A CN201711492675 A CN 201711492675A CN 108281799 A CN108281799 A CN 108281799A
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- matrix pattern
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- cellular construction
- handed material
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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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Abstract
The invention discloses a kind of left-handed material of two-dimentional matrix pattern, it is characterized in that, it include the cellular construction being made of medium substrate, medium substrate is made of 2~2.4, loss tangent value of 0.0009 Rogers planks of dielectric constant, the medium substrate is square, the length of side is 3.2~3.5mm, thickness 0.8mm；The side of medium substrate is coated with the copper facing of matrix pattern structure, centered on the matrix pattern structure opening is equipped in the middle part of symmetrical structure and the four edges of matrix pattern structure, cross in matrix pattern structure is crossed to form by two rectangle plated copper structures, the cellular construction expands extension along 3 D stereo direction and has been interconnected to form matrix pattern array of structures respectively, the matrix pattern array of structures edge is set as ideal magnetic boundary condition PHC along X-direction, the direction of Z axis is set as perfact conductor boundary condition PEC, electromagnetic wave is along Y direction incidence, energisation mode is arranged to encourage for wave impedance, there is left hand characteristic on Y and Z axis both direction.
Description
Technical field
The present invention relates to Meta Materials fields, and in particular to a kind of left-handed material of two dimension matrix pattern.
Background technology
Veselago proposes the concept of left-handed material in nineteen sixty-eight, and points out its dielectric constant and magnetic conductivity in certain electricity
It is simultaneously negative in magnetic wave frequency range, and many unusual with negative refraction, perfect lens effect, inverse Doppler effects etc.
Electromagnetic property.Just because of these special electromagnetic properties, just so that left-handed material is in optical imagery, antenna system, microwave
The fields such as device and electromagnetism stealth have extensive and important application.However this theoretical ability after 30 years is by Smith
It is realized for the first time by the form of plain conductor and split ring resonator combination.Henceforth, the research of left-handed material, which has been gone on, flies
Speed develops to obtain fast traffic lane.
In recent years, the research direction of left-handed material mainly has：On the one hand be multidimensional number, multiband left-handed material novel knot
The design and realization of structure, such as double Z-shaped metal strip structures, cross ring type structure are open twin nuclei in the same direction；On the other hand it is left hand
Application of the material in microwave, field of antenna.But often there is complicated, narrow bandwidth, damage in existing multidimensional number left-handed material
The problems such as consumption is big and circuit board bilateral prints, so function admirable, novel multi-vitamin left-handed material knot simple in structure, easy to process
It is configured to an important research direction.
Invention content
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of two-dimentional field word with excellent performance
The left-handed material of type.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of left-handed material of two dimension matrix pattern, which is characterized in that include the cellular construction being made of medium substrate, medium
Substrate is made of 2~2.4, loss tangent value of 0.0009 Rogers planks of dielectric constant, and the medium substrate is pros
Shape, the length of side are 3.2~3.5mm, thickness 0.8mm；The side of medium substrate is coated with the copper facing of matrix pattern structure, the matrix pattern
Be equipped with opening in the middle part of symmetrical structure and the four edges of matrix pattern structure centered on structure, the cross in matrix pattern structure by
Two rectangle plated copper structures are crossed to form, and the cellular construction is expanded extension along 3 D stereo direction and has been interconnected to form respectively
Matrix pattern array of structures, the matrix pattern array of structures edge are set as ideal magnetic boundary condition PHC, the direction of Z axis along X-direction
It is set as perfact conductor boundary condition PEC, electromagnetic wave is along Y direction incidence, and setting energisation mode encourages for wave impedance, in Y and Z
There is left hand characteristic in axis both direction.
Further, the material for being similar to air between cellular construction by dielectric constant is connected with each other.
Further, the copper-plated width is 0.12mm, thickness 0.07mm.
Compared with prior art, advantageous effect caused by technical scheme of the present invention is：
By simulation analysis obtain left-handed material of the present invention in 8.06GHz~14.53GHz frequency ranges effective dielectric constant,
Equivalent permeability, refractive index are negative, absolute bandwidth 6.47GHz simultaneously, relative bandwidth 57.28%, unit loss down to
0.06dB, unit electric size are 0.06, embody the Optimality of the two-dimensional left-handed material with the matrix pattern centrosymmetric structure
Energy.
Description of the drawings
Fig. 1 is left-handed material cellular construction of the present invention and dimensional structure schematic diagram.
Fig. 2 is cellular construction figure of the left-handed material for emulation.
Fig. 3 (a) and Fig. 3 (b) is respectively the amplitude simulation result and phase simulation result of S parameter.
Fig. 4 (a), (b), (c) are respectively the electromagnetic parameter analogous diagram of effective dielectric constant, magnetic conductivity, refractive index.
Fig. 5 is effective electromagnetic parameter comparison diagram.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
The present invention protects a kind of left-handed material of two-dimentional matrix pattern, includes the cellular construction being made of medium substrate, this reality
It applies medium substrate in example to be made by common 5880 materials of Rogers RT/duroid, relative dielectric constant 2.2, loss is just
It is 0.0009 to cut value；The side of square medium substrate length of side a=3.36mm, thickness 0.80mm, medium substrate are coated with field word
The copper facing of type structure is equipped with opening, field centered on matrix pattern structure in the middle part of symmetrical structure and the four edges of matrix pattern structure
Cross in font structure is crossed to form by two rectangle plated copper structures, the length of rectangle plated copper structure and wide respectively 3.3mm
And 0.12mm；The width of copper-plated metal line is 0.12mm, and thickness 0.07mm, structure size is as shown in Figure 1, in addition there are length
L=1.35mm, matrix pattern structure height h=3.30mm.
Two-dimensional left-handed material cellular construction is printed on medium substrate unilateral side in the present embodiment, is sat to three-dimensional according to 1x3x1
Three directions of parameter are expanded, and array is formed, as shown in Fig. 2, its simulation architecture unit size is 0.87mm*10.08mm*
3.36mm, the material for being similar to air between cellular construction by dielectric constant is connected with each other, such as foam, two-sided sponge；To Fig. 2
In simulation unit structure carry out boundary condition and energisation mode setting：It is set as ideal magnetic boundary condition along X-direction
PHC, fore-and-aft clearance are set as 1.524mm, and perfact conductor boundary condition PEC is set as along Z-direction, between the upper and lower away from being set as
3.36mm, electromagnetic wave are incident on I-shaped inside of cracking along Y direction, from the ports Port1, are emitted from the ports Port2, set at this time
It sets energisation mode to encourage for wave impedance, the spacing of left and right is 10.08mm.The centrosymmetric structure is a kind of New Two Dimensional left hand knot
Structure has left hand characteristic on Y and Z axis both direction.
Shown in the S parameter amplitude curve and phase curve such as Fig. 3 (a) and Fig. 3 (b) obtained by HFSS softwares.When emulation
Low-limit frequency is set as 6.00GHz, and highest frequency is set as 15.00GHz, frequency interval 0.01GHz；It can from Fig. 3 (a)
Go out, S11 and S21 resonance points are located at 6.86GHz and 14.10GHz, and return loss is -63.45dB；It can be seen that from Fig. 3 (b)
Mutation takes place in the phase of S21 at 7.83GHz, indicates the beginning of double negative regions, and the amplitude of S21 is big in passband
In -0.19dB, illustrate that the transmission loss of average each cellular construction is less than 0.06dB.
Smith proposes S parameter method within 2005, it can accurately and rapidly be extracted by the phase and amplitude of S parameter
The out effective electromagnetic parameter of left-handed material has been commonly utilized in left-handed material field now.By one section of MATLAB code,
Effective electromagnetic parameter can be extracted from S parameter：Effective dielectric constant, equivalent permeability, refractive index.By finding out three's reality
Portion is simultaneously negative ghz area, to determine the range of left hand frequency range.
As shown in Fig. 4 (a) to Fig. 5, effective dielectric constant, magnetic conductivity, refractive index in 8.06GHz~14.53GHz simultaneously
It is negative, common frequency band is the left hand frequency range of novel matrix pattern two-dimensional structure.
1 effective electromagnetic parameter of table is with frequency variation tendency
| Effective electromagnetic parameter | Frequency/GHz |
| ε<0 | 8.06-14.53 |
| μ<0 | 8.06-14.53 |
| n<0 | 8.06-14.55 |
As shown in table 1, it can be seen that the new structure in 8.06GHz~14.53GHz frequency ranges effective dielectric constant, etc.
Effect magnetic conductivity, refractive index be simultaneously negative, absolute bandwidth 6.47GHz, relative bandwidth 57.28%, unit be lost down to
0.06dB, unit electric size are 0.06, and it is a kind of single side two dimension left hand of function admirable to embody the matrix pattern centrosymmetric structure
Material.
The present invention is not limited to embodiments described above.Above the description of specific implementation mode is intended to describe and say
Bright technical scheme of the present invention, the above mentioned embodiment is only schematical, is not restrictive.This is not being departed from
In the case of invention objective and scope of the claimed protection, those skilled in the art may be used also under the inspiration of the present invention
The specific transformation of many forms is made, within these are all belonged to the scope of protection of the present invention.
Claims (3)
1. a kind of left-handed material of two dimension matrix pattern, which is characterized in that include the cellular construction being made of medium substrate, medium base
Plate is made of 2~2.4, loss tangent value of 0.0009 Rogers planks of dielectric constant, and the medium substrate is square,
The length of side is 3.2~3.5mm, thickness 0.8mm；The side of medium substrate is coated with the copper facing of matrix pattern structure, the matrix pattern knot
It is equipped with opening in the middle part of symmetrical structure and the four edges of matrix pattern structure centered on structure, the cross in matrix pattern structure is by two
A rectangle plated copper structure is crossed to form, and the cellular construction expands extension along 3 D stereo direction and has been interconnected to form field respectively
Font structure array, along ideal magnetic boundary condition PHC is set as along X-direction, the direction of Z axis is set the matrix pattern array of structures
It is set to perfact conductor boundary condition PEC, electromagnetic wave is along Y direction incidence, and setting energisation mode encourages for wave impedance, in Y and Z axis
There is left hand characteristic in both direction.
2. a kind of left-handed material of two-dimentional matrix pattern according to claim 1, which is characterized in that pass through Jie between cellular construction
The material that electric constant is similar to air is connected with each other.
3. a kind of left-handed material of two-dimentional matrix pattern according to claim 1, which is characterized in that the copper-plated width is
0.12mm, thickness 0.07mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711492675.2A CN108281799A (en) | 2017-12-30 | 2017-12-30 | A kind of left-handed material of two dimension matrix pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711492675.2A CN108281799A (en) | 2017-12-30 | 2017-12-30 | A kind of left-handed material of two dimension matrix pattern |
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| Publication Number | Publication Date |
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| CN108281799A true CN108281799A (en) | 2018-07-13 |
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| CN201711492675.2A Pending CN108281799A (en) | 2017-12-30 | 2017-12-30 | A kind of left-handed material of two dimension matrix pattern |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010038325A1 (en) * | 2000-03-17 | 2001-11-08 | The Regents Of The Uinversity Of California | Left handed composite media |
| CN105633588A (en) * | 2015-12-29 | 2016-06-01 | 中国计量学院 | Polarization-insensitive meta-material resonance apparatus with adjustable guided-mode resonance quality factor |
-
2017
- 2017-12-30 CN CN201711492675.2A patent/CN108281799A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010038325A1 (en) * | 2000-03-17 | 2001-11-08 | The Regents Of The Uinversity Of California | Left handed composite media |
| CN105633588A (en) * | 2015-12-29 | 2016-06-01 | 中国计量学院 | Polarization-insensitive meta-material resonance apparatus with adjustable guided-mode resonance quality factor |
Non-Patent Citations (2)
| Title |
|---|
| XIANG WAN ET AL.: "Horn Antenna With Reconfigurable Beam- Refraction and Polarization Based on Anisotropic Huygens Metasurface", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
| 吴良威 等: "基于多开口田字形宽频带低损耗左手材料", 《物理学报》 * |
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Application publication date: 20180713 |