CN108767483A - A kind of two-dimensional left-handed material with T font centrosymmetric structures - Google Patents
A kind of two-dimensional left-handed material with T font centrosymmetric structures Download PDFInfo
- Publication number
- CN108767483A CN108767483A CN201810402408.XA CN201810402408A CN108767483A CN 108767483 A CN108767483 A CN 108767483A CN 201810402408 A CN201810402408 A CN 201810402408A CN 108767483 A CN108767483 A CN 108767483A
- Authority
- CN
- China
- Prior art keywords
- font
- structures
- medium substrate
- centrosymmetric
- handed material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a kind of two-dimensional left-handed materials with T font centrosymmetric structures, it include the cellular construction being made of medium substrate, the dielectric constant of medium substrate is 3.48 ± 0.05, loss tangent value is 0.0037, the medium substrate is square, the length of side is 2.0~2.2mm, thickness 0.43mm；The side of medium substrate is coated with the copper facing of centrosymmetric T font structures, the T font structures are intersected vertically to be formed by two rectangle plated copper structures, the cellular construction expands extension along 3 D stereo direction and has been interconnected to form T font structure arrays respectively, the T font structures array 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 two-dimensional left-handed material with T font centrosymmetric structures.
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, provide it is a kind of with excellent performance with T words
The two-dimensional left-handed material of type centrosymmetric structure.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of two-dimensional left-handed material with T font centrosymmetric structures, includes the cellular construction being made of medium substrate,
The dielectric constant of medium substrate is 3.48 ± 0.05, and loss tangent value 0.0037, the medium substrate is square, and the length of side is
2.0~2.2mm, thickness 0.43mm；The side of medium substrate is coated with the copper facing of centrosymmetric T font structures, the T fonts
Structure is intersected vertically to be formed by two rectangle plated copper structures, and the cellular construction is expanded respectively along 3 D stereo direction extends phase
It connects and is formed with T font structure arrays, the T font structures array is set as ideal magnetic boundary condition PHC, Z along X-direction
The direction of axis is set as perfact conductor boundary condition PEC, and electromagnetic wave swashs along Y direction incidence, setting energisation mode for wave impedance
It encourages, there is left hand characteristic on Y and Z axis both direction.
Further, the material for being similar to air between cell array structure by dielectric constant is connected with each other.
Further, the copper-plated width is 0.10mm, thickness 0.045mm.
Further, the medium substrate is Rogers RO4350 plates.
Further, there are four the copper facing of centrosymmetric T font structures for the side plating of medium substrate.
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 21.14GHz~39.26GHz frequency ranges effective dielectric constant,
Equivalent permeability, refractive index are negative, absolute bandwidth 18.12GHz simultaneously, relative bandwidth 60.00%, unit loss down to
0.04dB, unit electric size are 0.07, embody the Optimality of the two-dimensional left-handed material with the T font centrosymmetric structures
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 the symmetrical T fonts of two-dimensional center, includes the unit knot being made of medium substrate
Structure, medium substrate is made by common 4350 materials of Rogers RT/duroid in the present embodiment, and relative dielectric constant is
3.48, loss tangent value 0.0037；Square medium substrate length of side L=2.10mm, thickness 0.43mm, the one of medium substrate
Side is coated with the copper facing of T font structures, symmetrical structure and T font structures are hung down by two rectangle plated copper structures centered on T font structures
" T " font is directly intersected, the rectangle length of " T " font plated copper structure is respectively L1=1.4mm and L2=0.7mm；Copper-plated metal line
Width be 0.10mm, thickness 0.045mm, structure size is as shown in Figure 1.
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 1x2x1
Three directions of parameter are expanded, and array is formed, as shown in Fig. 2, its simulation architecture unit size is 0.475mm*4.20mm*
2.10mm, 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 1.475mm, and perfact conductor boundary condition PEC is set as along Z-direction, between the upper and lower away from being set as
2.10mm, 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 4.20mm.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 20.00GHz, and highest frequency is set as 40.00GHz, frequency interval 0.01GHz；It can from Fig. 3 (a)
Go out, S11 and S21 resonance points are located at 22.22GHz and 36.65GHz, and return loss is -50.61dB；It can from Fig. 3 (b)
Go out, mutation takes place in the phase of S21 at 21.28GHz, indicates the beginning of double negative regions, and in passband S21 amplitude
More than -0.08dB, illustrate that the transmission loss of average each cellular construction is less than 0.04dB.
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 are same in 21.14GHz~39.26GHz
When be negative, common frequency band is the left hand frequency range of T font centrosymmetrical two-dimensional structures.
1 effective electromagnetic parameter of table is with frequency variation tendency
| Effective electromagnetic parameter | Frequency/GHz |
| ε<0 | 21.14-40.00 |
| μ<0 | 21.14-39.26 |
| n<0 | 21.14-39.32 |
As shown in table 1, it can be seen that the new structure in 21.14GHz~39.26GHz frequency ranges effective dielectric constant, etc.
Effect magnetic conductivity, refractive index be simultaneously negative, absolute bandwidth 18.12GHz, relative bandwidth 60.00%, unit be lost down to
0.04dB, unit electric size are 0.07, and it is a kind of single side two dimension left hand material of function admirable to embody the T font centrosymmetric structures
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 (5)
1. a kind of two-dimensional left-handed material with T font centrosymmetric structures, which is characterized in that include being made of medium substrate
The dielectric constant of cellular construction, medium substrate is 3.48 ± 0.05, and loss tangent value 0.0037, the medium substrate is pros
Shape, the length of side are 2.0~2.2mm, thickness 0.43mm；The side of medium substrate is coated with the copper facing of centrosymmetric T font structures,
The T font structures are intersected vertically to be formed by two rectangle plated copper structures, and the cellular construction is distinguished along 3 D stereo direction
Expansion, which extends, has been interconnected to form T font structure arrays, and the T font structures array is set as ideal magnetic side along X-direction
The direction of boundary condition PHC, Z axis are set as perfact conductor boundary condition PEC, and energisation mode is arranged along Y direction incidence in electromagnetic wave
It is encouraged for wave impedance, there is left hand characteristic on Y and Z axis both direction.
2. a kind of two-dimensional left-handed material with T font centrosymmetric structures according to claim 1, which is characterized in that single
The material for being similar to air between element array structure by dielectric constant is connected with each other.
3. a kind of two-dimensional left-handed material with T font centrosymmetric structures according to claim 1, which is characterized in that institute
It is 0.10mm, thickness 0.045mm to state copper-plated width.
4. a kind of two-dimensional left-handed material with T font centrosymmetric structures according to claim 1, which is characterized in that institute
It is Rogers RO4350 plates to state medium substrate.
5. a kind of two-dimensional left-handed material with T font centrosymmetric structures according to claim 1, which is characterized in that institute
State medium substrate side plating there are four centrosymmetric T font structures copper facing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402408.XA CN108767483A (en) | 2018-04-28 | 2018-04-28 | A kind of two-dimensional left-handed material with T font centrosymmetric structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402408.XA CN108767483A (en) | 2018-04-28 | 2018-04-28 | A kind of two-dimensional left-handed material with T font centrosymmetric structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108767483A true CN108767483A (en) | 2018-11-06 |
Family
ID=64008691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810402408.XA Pending CN108767483A (en) | 2018-04-28 | 2018-04-28 | A kind of two-dimensional left-handed material with T font centrosymmetric structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108767483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084863A (en) * | 2022-08-16 | 2022-09-20 | 国网山西省电力公司电力科学研究院 | Frequency selective surface structure with dual-passband characteristic |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090111103A (en) * | 2008-04-21 | 2009-10-26 | 한국전자통신연구원 | Uni-Planar Antenna using CRLH structure |
| CN102694267A (en) * | 2011-03-25 | 2012-09-26 | 深圳光启高等理工研究院 | Isotropous meta-material |
| CN106450795A (en) * | 2016-10-21 | 2017-02-22 | 西北工业大学 | Wave-absorbing structure of double-frequency polarized insensitive monolayer metamaterial |
-
2018
- 2018-04-28 CN CN201810402408.XA patent/CN108767483A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090111103A (en) * | 2008-04-21 | 2009-10-26 | 한국전자통신연구원 | Uni-Planar Antenna using CRLH structure |
| CN102694267A (en) * | 2011-03-25 | 2012-09-26 | 深圳光启高等理工研究院 | Isotropous meta-material |
| CN106450795A (en) * | 2016-10-21 | 2017-02-22 | 西北工业大学 | Wave-absorbing structure of double-frequency polarized insensitive monolayer metamaterial |
Non-Patent Citations (2)
| Title |
|---|
| XIANG WAN ETC.: "Horn Antenna With Reconfigurable Beam- Refraction and Polarization Based on Anisotropic Huygens Metasurface", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
| 金大琳: "左手材料及其在天线的应用研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084863A (en) * | 2022-08-16 | 2022-09-20 | 国网山西省电力公司电力科学研究院 | Frequency selective surface structure with dual-passband characteristic |
| CN115084863B (en) * | 2022-08-16 | 2022-11-11 | 国网山西省电力公司电力科学研究院 | Frequency selective surface structure with dual-passband characteristic |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101656352B (en) | Double-frequency imaging fractal dipole antenna | |
| CN101399396B (en) | Photonic forbidden band ceramic Sierpinski split antenna used for RFID system | |
| CN103618138B (en) | Miniaturized differential microstrip antenna | |
| CN205752461U (en) | A kind of monolayer Double-frequency band elimination frequency-selective surfaces | |
| CN207732097U (en) | A kind of array antenna structure and a kind of communication terminal | |
| CN110600870A (en) | 5G large-frequency-ratio antenna with high harmonic suppression | |
| CN202275943U (en) | Horizontal polarization orientation planar filtering antenna | |
| CN108767483A (en) | A kind of two-dimensional left-handed material with T font centrosymmetric structures | |
| CN208284629U (en) | A kind of low-loss mimo antenna structure | |
| CN102842758A (en) | Radome material and radome and antenna system adopting same | |
| CN202121040U (en) | High defect coplanar waveguide double-frequency filter | |
| CN203553353U (en) | A radio frequency identification fractal antenna | |
| CN101304115B (en) | Photon band-gap double-folding dipole dual frequency band antenna | |
| CN108199149A (en) | A kind of double-T shaped left-handed material of single side | |
| CN108281798A (en) | A kind of cross two-dimensional left-handed material combined with hollow | |
| CN104767009A (en) | Filter synthesizing artificial surface plasmon device waveguide and substrate integrated waveguide | |
| CN113140914B (en) | 5G-oriented metamaterial structure broadband antipodal Vivaldi antenna and measuring method thereof | |
| CN108281799A (en) | A kind of left-handed material of two dimension matrix pattern | |
| CN106207479B (en) | Left-handed material made of a kind of structural unit of left-handed material and its arrangement | |
| CN108258431A (en) | It is a kind of equipped with the I-shaped left-handed material cracked | |
| CN108258432A (en) | A kind of two-dimensional left-handed material of matrix pattern | |
| CN102395245B (en) | U-shaped electromagnetic band gap circuit board with low-frequency simultaneous switching noise inhibiting function | |
| CN108258429A (en) | A kind of two dimension hollow left-handed material | |
| CN210607604U (en) | 5G large-frequency-ratio antenna with high harmonic suppression | |
| CN203351754U (en) | Dielectric resonance antenna array based on electromagnetic band gap material technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181106 |
|
| WD01 | Invention patent application deemed withdrawn after publication |