CN207690975U - Artificial surface phasmon waveguiding structure - Google Patents
Artificial surface phasmon waveguiding structure Download PDFInfo
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- CN207690975U CN207690975U CN201820106756.8U CN201820106756U CN207690975U CN 207690975 U CN207690975 U CN 207690975U CN 201820106756 U CN201820106756 U CN 201820106756U CN 207690975 U CN207690975 U CN 207690975U
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- artificial surface
- surface phasmon
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- transmission
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Abstract
The utility model belongs to microwave integrated circuit and device arts, disclose a kind of artificial surface phasmon waveguiding structure, the dispersion characteristics of complementary trapezoidal shape slot structure are analyzed using Mode-solving techniques, the artificial surface phasmon of simulated optical frequency range naturally occurring, by the microstrip transition structure for building strange mould excitation, having devised in microwave frequency band there is intense beam to tie up effect and can support the artificial surface phasmon waveguide of strange mould transmission, and full-wave electromagnetic emulation has been carried out, demonstrate its strange mould high efficiency of transmission effect in the artificial surface phasmon of microwave frequency band.The strange mould artificial surface phasmon waveguide of the utility model has the characteristics that thin efficiency of transmission height, thickness, light weight and easy processing, is had broad application prospects in novel microwave integrated circuit and devices field.
Description
Technical field
The utility model belongs to microwave integrated circuit and device arts more particularly to a kind of artificial surface phasmon
Waveguiding structure.
Background technology
Surface phasmon (surface plasmonpolaritons, SPPs) is a kind of surface electromagnetic wave, according to Mike
This Wei equation group derives it is found that it is present on the opposite two media interface of dielectric constant.Due in visible light frequency band, gold
Accessory has negative dielectric constant, and internal free electron is in plasma state, so there is under natural conditions in metal surface
Surface phasmon.But at lower frequencies, such as microwave frequency band, metal shows as perfect electric conductor rather than plasma
Body.In order to which in the following excitating surface phasmon of infrared frequency, the concept of plasma Meta Materials is come into being.Existing one kind
Ultra-thin plasma ripple structure can be supported similar to surface of visible light frequency band etc. in microwave and terahertz wave band from sharp
Member transmission, is referred to as artificial surface phasmon.But it is base mostly based on this theoretical artificial surface phasmon transmission
In even mould, the research for encouraging and transmitting about strange mould artificial surface phasmon is fewer and fewer.For existing technical solution,
There are the big defects of transmission loss, and can only could be encouraged by increasing other structures or changing the method for waveguide type at present
Unusual mould.The present invention can reduce transmission loss, bound stronger, can effectively reduce crosstalk in systems, conformal etc.
Application aspect has huge application prospect.
In conclusion problem of the existing technology is：Artificial surface phasmon transmission at present is based on even mould mostly
, the research for encouraging and transmitting about strange mould artificial surface phasmon is fewer and fewer.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of artificial surface phasmon waveguiding structure.
The utility model is realized in this way a kind of artificial surface phasmon waveguiding structure, described artificial surface etc. from
Excimer waveguiding structure analyzes the dispersion characteristics of complementary trapezoidal shape slot structure using Mode-solving techniques, simulated optical frequency range naturally occurring
Artificial surface phasmon；The microstrip transition structure for building strange mould excitation, obtains in microwave frequency band there is intense beam to tie up effect and energy
Enough support the artificial surface phasmon waveguide of strange mould transmission.
Further, the artificial surface phasmon waveguiding structure is using complementary trapezoid groove structure.
Further, the feed knot that the artificial surface phasmon waveguiding structure is formed using micro-strip-line of rabbet joint coupled mode
Structure.
The another object of the utility model is to provide a kind of labor statement of the artificial surface phasmon waveguiding structure
Face phasmon waveguiding structure, the artificial surface phasmon waveguiding structure are provided with：
Complementary trapezoidal shape slot unit；
The complementary trapezoidal shape slot cellular construction is made of two dovetail grooves of mirror symmetry.
Further, the trapezoidal groove depth is d=5mm, and the spacing of complementary structure is g=1.5mm；The upper bottom of dovetail groove
Respectively a1=0.6mm, a2=3mm；The period of cellular construction is p=5mm.
The another object of the utility model be to provide it is a kind of using the artificial surface phasmon waveguiding structure etc.
Gas ions Meta Materials.
The artificial surface phasmon transmission line of complementary structure provided by the utility model, cellular construction is by the metal line of rabbet joint
The complementary dovetail groove composition of upper etching two, according to eigen mode simulation analysis dispersion characteristics it is found that its dispersion curve is with frequency
Raising is gradually deviated from light and levels off to specific cutoff frequency.Show that people may be implemented in the structure that the utility model is proposed
Work surface plasmon mode.Compared to traditional rectangular groove structure, stronger field containment effect may be implemented in trapezoid groove structure.
The utility model utilizes the energisation mode that micro-strip is coupled with the line of rabbet joint, its strange mould pattern is encouraged on the line of rabbet joint, by gradually
The trapezoidal groove of change and the line of rabbet joint line width gradually to broaden realize impedance matching and the wave of the line of rabbet joint and artificial surface phasmon structure
Arrow matching.
Compared with prior art, the utility model has following advantage：
The utility model realizes that the strange mould of the artificial surface phasmon of microwave frequency band transmits shape using complementary trapezoidal shape slot structure
Formula, field containment effect is apparent, is conducive to integrated low crosstalk artificial surface phasmon device circuitry；Feed structure is simple, processing
It is convenient, it is at low cost, it is light-weight.Traditional strange mould feed structure needs complicated feeding network to realize impedance matching.In contrast,
The single layer microstrip structure fabrication processes that the utility model uses are relatively easy, not only save cost, but also avoid complicated technology
The mismachining tolerance that step causes.
The utility model has efficient broadband characteristic.In frequency range from low frequency to cutoff frequency, artificial surface phasmon
The transmission coefficient of transmission line is more than -1.5dB and reflectance factor is less than -10dB, shows its efficient broadband characteristic.The utility model
Used dielectric substrate thickness is only 0.813mm, thus entire array have the characteristics that it is frivolous, in the limited item of many weight
It can be widely applied very much in mesh.
The Novel manual electromagnetic material of the utility model refers to a kind of with extraordinary physical not available for natural medium
The artificial composite structure or Composite Media of matter reach control material electromagnetic property by changing cellular construction and its space arrangement
Purpose；By its cellular construction of engineer, the effective dielectric constant of material, magnetic conductivity, refractive index, wave impedance can be controlled
Equal electromagnetic parameters, realize the property that material does not have existing for nature.
Description of the drawings
Fig. 1 is the artificial surface phasmon waveguiding structure flow chart that the utility model embodiment provides.
Fig. 2 is the waveguide of artificial surface phasmon and the tool for the complementary trapezoidal shape ripple struction that the utility model embodiment provides
Body structure size schematic diagram.
Fig. 3 is the corresponding artificial surface phasmon waveguide of different trapezoidal bottom edge lengths that the utility model embodiment provides
Dispersion curve contrast schematic diagram.
Fig. 4 is the changeover portion of conventional microstrip circuit and artificial surface phasmon waveguide that the utility model embodiment provides
Schematic diagram.
Fig. 5 is that the full-wave simulation S parameter for the artificial surface phasmon transition structure that the utility model embodiment provides is shown
It is intended to.
Fig. 6 is the Electric Field Simulation of the artificial surface phasmon waveguide of the utility model embodiment offer at different frequencies
Near field schematic diagram.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain this practicality
It is novel, it is not used to limit the utility model.
The utility model realizes that artificial surface phasmon transmits using complementary trapezoidal shape slot, passes through even mould micro-strip excitation to wave
The transition led realizes the strange mould excitation of artificial surface phasmon, is used for the surface wave transmission of microwave frequency band, belongs to novel artificial
Electromagnetic material field.
The application principle of the utility model is explained in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the artificial surface phasmon waveguiding structure that the utility model embodiment provides includes the following steps：
S101：The dispersion characteristics of complementary trapezoidal shape slot structure, simulated optical frequency range naturally occurring are analyzed using Mode-solving techniques
Artificial surface phasmon；
S102：The microstrip transition structure for building strange mould excitation, obtains in microwave frequency band there is intense beam to tie up effect and can prop up
Hold the artificial surface phasmon waveguide of strange mould transmission.
The application principle of the utility model is further described below in conjunction with the accompanying drawings.
Fig. 2 be the utility model proposes novel artificial surface plasmon waveguide structure size schematic diagram.Complementary trapezoidal shape
The cellular construction of slot is made of two dovetail grooves of mirror symmetry, and the position relationship of structure has groove depth d=5mm, complementary structure
Spacing is g=1.5mm, and the upper bottom of dovetail groove is respectively a1=0.6mm, and the period of a2=3mm. cellular constructions is p=
5mm.The position effect of wherein parameter designing is the cutoff frequency that can be used for adjusting artificial surface phasmon.
Fig. 3 is that have different base widths using what the eigen mode solver in business software CST microwave studios acquired
The corresponding dispersion curve of cellular construction of a2.With the comparison of the dispersion curve of light it is found that all its dispersion curves of notching construction
Light is deviated considerably from frequency increase and levels off to respectively different cutoff frequency, shows that trapezoid groove structure has artificial surface
The distinctive field containment effect of phasmon.And compared to general rectangular groove structure, the field containment ability of trapezoid groove structure is more
Add significantly.
Fig. 4 is the feed and transition structure of novel plasma waveguide provided by the utility model.Micro-strip-line of rabbet joint coupling
Feeding classification can encourage apparent strange mould pattern on the line of rabbet joint, by the line of rabbet joint line width of gradual change and the groove of gradient,
Realize the impedance matching between different transmission line structures and pattern conversion.
Novel artificial surface obtained using the full-wave simulation of CST microwave studios etc. is set forth from sharp in Fig. 5, Fig. 6
Corresponding electric field near field distribution figure under the scattering parameter S21 and S11 and 3GHz, 4GHz, 5GHz and 6GHz of first waveguide.By emulating
As a result it is found that transmission coefficient S21 is in passband can reach -1.5dB and reflectance factor S11 is less than -10dB, show it in passband
Interior good transmission characteristic.Near field distribution figure can significantly observe the field containment effect of artificial surface phasmon, and
Electric field fragrance on the waveguiding structure of mirror symmetry is just the opposite, shows the exactly strange mould of its transmission.
The utility model in the metal etch groove for being printed on ultra-thin medium substrate by realizing the artificial of microwave frequency band
The transmission of surface phasmon, and complementary structure can support efficient strange mould transmission.Pass through ladder known to eigen mode emulation
The dispersion characteristics of shape slot structure are fairly obvious, compared to traditional rectangular groove structure, the field containment effect of surface phasmon
It is more obvious, thus it is advantageously implemented the highly integrated of circuit.The changeover portion being made of the groove structure of depth-graded is transmitting
The effect of impedance matching and pattern conversion is served as between the micro-strip and the artificial surface phasmon of the strange mould of transmission of even mould.Micro-strip-
The line of rabbet joint coupling strange mould energisation mode it is simple in structure, broadband and efficiently.Numerical Simulation Results also show the utility model offer
The artificial surface phasmon waveguide based on complementary trapezoidal shape slot structure have higher efficiency of transmission.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (2)
1. a kind of artificial surface phasmon waveguiding structure, which is characterized in that the artificial surface phasmon waveguiding structure is set
It is equipped with：
Complementary trapezoidal shape slot unit；
The complementary trapezoidal shape slot cellular construction is made of two dovetail grooves of mirror symmetry.
2. artificial surface phasmon waveguiding structure as described in claim 1, which is characterized in that the trapezoidal groove depth is d=
The spacing of 5mm, complementary structure are g=1.5mm；The upper bottom of dovetail groove is respectively a1=0.6mm, a2=3mm；Cellular construction
Period be p=5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106756.8U CN207690975U (en) | 2018-01-23 | 2018-01-23 | Artificial surface phasmon waveguiding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106756.8U CN207690975U (en) | 2018-01-23 | 2018-01-23 | Artificial surface phasmon waveguiding structure |
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| Publication Number | Publication Date |
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| CN207690975U true CN207690975U (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820106756.8U Expired - Fee Related CN207690975U (en) | 2018-01-23 | 2018-01-23 | Artificial surface phasmon waveguiding structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188599A (en) * | 2018-10-30 | 2019-01-11 | 西安邮电大学 | A kind of dual-trench type big negative dispersion waveguide in 1530nm to 1580nm wavelength band |
| CN113346211A (en) * | 2021-06-04 | 2021-09-03 | 北京邮电大学 | Electromagnetic wave transmission waveguide |
-
2018
- 2018-01-23 CN CN201820106756.8U patent/CN207690975U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188599A (en) * | 2018-10-30 | 2019-01-11 | 西安邮电大学 | A kind of dual-trench type big negative dispersion waveguide in 1530nm to 1580nm wavelength band |
| CN113346211A (en) * | 2021-06-04 | 2021-09-03 | 北京邮电大学 | Electromagnetic wave transmission waveguide |
| CN113346211B (en) * | 2021-06-04 | 2022-07-19 | 北京邮电大学 | Electromagnetic wave transmission waveguide |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20190123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |