CN108258429A - A kind of two dimension hollow left-handed material - Google Patents
A kind of two dimension hollow left-handed material Download PDFInfo
- Publication number
- CN108258429A CN108258429A CN201711489369.3A CN201711489369A CN108258429A CN 108258429 A CN108258429 A CN 108258429A CN 201711489369 A CN201711489369 A CN 201711489369A CN 108258429 A CN108258429 A CN 108258429A
- Authority
- CN
- China
- Prior art keywords
- hollow
- medium substrate
- handed material
- cellular construction
- hollow structure
- 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-dimentional hollow left-handed material, including the cellular construction being made of medium substrate, medium substrate is made of dielectric constant of 3~3.8, loss tangent value of 0.003 Neltec planks, and the medium substrate is square, the length of side is 1.75mm, thickness 0.5mm；The side of the medium substrate is coated with the copper facing of hollow structure, the wherein side of symmetrical structure and each apex angle of hollow structure is equipped with opening centered on the hollow structure, the cellular construction expands extension along 3 D stereo direction and has been interconnected to form hollow array of structures respectively, the hollow array of structures is set as preferable magnetic boundary condition PHC along X-direction, the direction of Z axis is set as perfact conductor boundary condition PEC, electromagnetic wave is incident along Y direction, energisation mode is set to be encouraged 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 dimension hollow left-handed material.
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 are complicated, narrow bandwidth, damages for existing multidimensional number left-handed material
The problems such as consumption is greatly 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
The purpose of the invention is to overcome deficiency of the prior art, a kind of two-dimentional mouth word with excellent performance is provided
Type left-handed material
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of two dimension hollow left-handed material, including the cellular construction being made of medium substrate, medium substrate is normal by dielectric
Number is made of 3~3.8, loss tangent value of 0.003 Neltec planks, and the medium substrate is square, and the length of side is
1.75mm, thickness 0.5mm；The side of the medium substrate is coated with the copper facing of hollow structure, during the hollow structure is
The wherein side of heart symmetrical structure and each apex angle of hollow structure is equipped with opening, and the cellular construction is along 3 D stereo direction
Expansion extension has been interconnected to form hollow array of structures respectively, and the hollow array of structures edge is set as along X-direction
Preferable magnetic boundary condition PHC, the direction of Z axis are set as perfact conductor boundary condition PEC, and electromagnetic wave is set along Y direction incidence
Energisation mode is encouraged for wave impedance, has left hand characteristic on Y and Z axis both direction.
Further, the hollow structure length of side 1.4mm.
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 0.1mm, 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 13.60GHz~25.95GHz frequency ranges effective dielectric constant,
Equivalent permeability, refractive index real part are negative, absolute bandwidth 12.35GHz simultaneously, and relative bandwidth 62.45%, unit is lost low
To 0.11dB, the excellent performance of the two-dimensional left-handed material with the hollow centrosymmetric structure is embodied.
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 of S parameter and phase simulation result.
Fig. 4 (a), (b), (c) be respectively effective dielectric constant, magnetic conductivity, refractive index electromagnetic parameter analogous diagram.
Fig. 5 is effective electromagnetic parameter comparison diagram.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of two-dimentional hollow left-handed material of present invention protection, including the cellular construction being made of medium substrate, this implementation
Medium substrate is made by Neltec NH9348 materials in example, relative dielectric constant 3.48, loss tangent value 0.003.It is square
Shape medium substrate length of side a=1.75mm, thickness 0.5mm, the side of medium substrate is coated with the copper facing of hollow structure, hollow
The wherein side of symmetrical structure and each apex angle of hollow structure is equipped with opening, hollow structure length l=centered on structure
1.4mm, the width of all copper-plated metal lines is 0.1mm, and plating copper thickness is 0.07mm, and 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 according to 1x4x1 to three-dimensional
Three directions expansion of parameter, forms array, as shown in Fig. 2, its simulation architecture unit size is 0.57mm*7.00mm*
7.00mm, 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 the setting of boundary condition and energisation mode：Preferable magnetic boundary condition is set as 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
1.75mm, electromagnetic wave is incident along Y direction, and hollow inside configuration is incident on from Port1 ports, is emitted from Port2 ports, this
When setting energisation mode for wave impedance encourage, left and right spacing be 7.00mm.The centrosymmetric structure is that a kind of New Two Dimensional is left
Hand 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.During emulation
Low-limit frequency is set as 12.00GHz, and highest frequency is set as 27.00GHz, frequency interval 0.01GHz.It can from Fig. 3 (a)
Go out, S11 and S21 resonance points are located at 13.31GHz and 25.37GHz, and return loss is -64.74dB；It can from Fig. 3 (b)
Go out, mutation takes place in the phase of S21 at 13.58GHz, indicates the beginning of double negative regions, and in passband S21 amplitude
More than -0.44dB, illustrate that the transmission loss of average each cellular construction is less than 0.11dB.
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 13.60GHz~25.95GHz
When be negative, common frequency band is the left hand frequency range of hollow two-dimensional structure.
1 effective electromagnetic parameter of table is with frequency variation tendency
| Effective electromagnetic parameter | Frequency/GHz |
| ε<0 | 13.60-26.47 |
| μ<0 | 13.60-25.95 |
| n<0 | 13.60-26.00 |
As shown in table 1, it can be seen that the new structure in 13.60GHz~25.95GHz frequency ranges effective dielectric constant, etc.
Effect magnetic conductivity, refractive index real part be simultaneously negative, absolute bandwidth 12.35GHz, relative bandwidth 62.45%, unit be lost down to
0.11dB embodies the single side two-dimensional left-handed material that hollow centrosymmetric structure is a kind of function admirable.
The present invention is not limited to embodiments described above.The description of specific embodiment is intended to describe and be said above
Bright technical scheme of the present invention, above-mentioned specific embodiment is only schematical, is not restricted.This is not being departed from
In the case of invention objective and scope of the claimed protection, those of ordinary skill in the art may be used also under the enlightenment 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 (4)
1. a kind of two dimension hollow left-handed material, which is characterized in that including the cellular construction being made of medium substrate, medium substrate
It is made of dielectric constant of 3~3.8, loss tangent value of 0.003 Neltec planks, the medium substrate is square, side
A length of 1.75mm, thickness 0.5mm；The side of the medium substrate is coated with the copper facing of hollow structure, the hollow structure
Centered on the wherein side of symmetrical structure and each apex angle of hollow structure be equipped with opening, the cellular construction is along 3 D stereo
Direction expands extension and has been interconnected to form hollow array of structures respectively, and the hollow array of structures edge is set along X-direction
Preferable magnetic boundary condition PHC is set to, the direction of Z axis is set as perfact conductor boundary condition PEC, and electromagnetic wave is incident along Y direction,
Energisation mode is set to be encouraged for wave impedance, there is left hand characteristic on Y and Z axis both direction.
A kind of 2. two-dimentional hollow left-handed material according to claim 1, which is characterized in that the hollow structure length of side
1.4mm。
3. a kind of two-dimentional hollow left-handed material according to claim 1, which is characterized in that pass through dielectric between cellular construction
The material that constant is similar to air is connected with each other.
4. a kind of two-dimentional hollow left-handed material according to claim 1, which is characterized in that the copper-plated width is
0.1mm, thickness 0.07mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489369.3A CN108258429A (en) | 2017-12-30 | 2017-12-30 | A kind of two dimension hollow left-handed material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489369.3A CN108258429A (en) | 2017-12-30 | 2017-12-30 | A kind of two dimension hollow left-handed material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108258429A true CN108258429A (en) | 2018-07-06 |
Family
ID=62724494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711489369.3A Pending CN108258429A (en) | 2017-12-30 | 2017-12-30 | A kind of two dimension hollow left-handed material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108258429A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100223798A1 (en) * | 2008-11-13 | 2010-09-09 | Darlene Zimmerman | Unique numbering system for rulers, squares and tools for both right and left handed users |
| FR2973586A1 (en) * | 2011-03-31 | 2012-10-05 | Ecole Superieure Electronique De L Ouest Eseo | ANTENNA STRUCTURES COMBINING OPTIMIZED METAMATERIALS FOR THE UHF-RFID BAND |
| CN105140652A (en) * | 2015-09-17 | 2015-12-09 | 上海大学 | Chiral metamaterial micro unit structure with 90-degree polarization deflection characteristic |
| CN106877003A (en) * | 2017-03-22 | 2017-06-20 | 桂林电子科技大学 | A kind of reflection-type ultra wide band Terahertz polarization restructural circular polarizer |
-
2017
- 2017-12-30 CN CN201711489369.3A patent/CN108258429A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100223798A1 (en) * | 2008-11-13 | 2010-09-09 | Darlene Zimmerman | Unique numbering system for rulers, squares and tools for both right and left handed users |
| FR2973586A1 (en) * | 2011-03-31 | 2012-10-05 | Ecole Superieure Electronique De L Ouest Eseo | ANTENNA STRUCTURES COMBINING OPTIMIZED METAMATERIALS FOR THE UHF-RFID BAND |
| CN105140652A (en) * | 2015-09-17 | 2015-12-09 | 上海大学 | Chiral metamaterial micro unit structure with 90-degree polarization deflection characteristic |
| CN106877003A (en) * | 2017-03-22 | 2017-06-20 | 桂林电子科技大学 | A kind of reflection-type ultra wide band Terahertz polarization restructural circular polarizer |
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》 * |
| 王宝 等: "一种新型宽频低损左手材料设计", 《激光与光电子学进展》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202150533U (en) | Resonant cavity | |
| CN103490169B (en) | Individual layer broadband random surface | |
| CN101656352B (en) | Double-frequency imaging fractal dipole antenna | |
| CN103618138B (en) | Miniaturized differential microstrip antenna | |
| CN205752461U (en) | A kind of monolayer Double-frequency band elimination frequency-selective surfaces | |
| CN107181066A (en) | A kind of double wideband polarization converters based on the super surface of anisotropy | |
| CN102157797A (en) | Broadband high-gain flat-plate Vivaldi antenna | |
| CN107978853B (en) | End-fire circularly polarized millimeter wave antenna | |
| CN103531898A (en) | Supermaterial-based radio frequency identification fractal antenna | |
| CN108281797A (en) | High angle stability frequency-selective surfaces based on 2.5D braiding structures | |
| CN109546348A (en) | A kind of novel miniaturization broadband SW-SIW electromagnetic horn and its design method | |
| Babu et al. | Flared V-shape slotted monopole multiband antenna with metamaterial loading | |
| Purnamirza et al. | A novel technique in simplifying the fabrication process and improving the reflection coefficient of the linear polarized radial line slot array (LP-RLSA) antennas | |
| CN206098624U (en) | Little modular construction of double -deck rotatory complementary super material of class Y type | |
| CN203553353U (en) | A radio frequency identification fractal antenna | |
| CN108199149A (en) | A kind of double-T shaped left-handed material of single side | |
| CN204011735U (en) | Individual layer broadband random surface | |
| CN108281798A (en) | A kind of cross two-dimensional left-handed material combined with hollow | |
| CN108258429A (en) | A kind of two dimension hollow left-handed material | |
| CN108400429A (en) | A kind of ultra wideband dual polarization antenna | |
| CN108767483A (en) | A kind of two-dimensional left-handed material with T font centrosymmetric structures | |
| CN106252855B (en) | A kind of the fluting broadband UC-EBG structure and its design method of right-angled intersection broken line type | |
| 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 | |
| CN108199148A (en) | A kind of two-dimensional left-handed material of hollow |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180706 |