CN103091340A - Micro-strip surface whispering gallery mode sensor - Google Patents
Micro-strip surface whispering gallery mode sensor Download PDFInfo
- Publication number
- CN103091340A CN103091340A CN2013100558564A CN201310055856A CN103091340A CN 103091340 A CN103091340 A CN 103091340A CN 2013100558564 A CN2013100558564 A CN 2013100558564A CN 201310055856 A CN201310055856 A CN 201310055856A CN 103091340 A CN103091340 A CN 103091340A
- Authority
- CN
- China
- Prior art keywords
- micro
- transmission line
- strip
- little
- echo wall
- 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
Images
Abstract
The invention relates to a micro-strip surface whispering gallery mode sensor. The micro-strip surface whispering gallery mode sensor comprises a wrinkled micro-strip metal paster 1, a medium substrate 2, a micro-strip transmission line 3, a coaxial/micro-strip converter 4 and a triggering and receiving device 5, wherein the wrinkled micro-strip metal paster is of a closed structure, the wrinkle size is much less than a wavelength, the electromagnetic property of the wrinkled micro-strip metal paster is equivalent to that of a material with a negative dielectric constant within a radio frequency range, a microwave frequency range and a terahertz frequency range; the metal paster is attached to the medium substrate; a coupling distance between the micro-strip transmission line and the wrinkled micro-strip metal paster is related to a working frequency range and can be adjusted according to design requirements; the coaxial/micro-strip converter is used for achieving mode conversion between a coaxial cable and the micro-strip transmission line; and the triggering and receiving device is used for triggering and detecting a swept-frequency signal. According to the micro-strip surface whispering gallery mode sensor, an evanescent field at the edge of the micro-strip transmission line can be coupled to the wrinkled micro-strip metal paster so as to form a whispering gallery mode, therefore the mutual function between the microwave and a substance is enhanced, and the detecting sensitivity is increased. Relevant physical parameter information of an environment medium can be obtained according to the excursion of a harmonic peak by measuring a transmission coefficient of the micro-strip transmission line.
Description
Technical field
The present invention relates to a kind of little belt surface echo wall die sensor, can work in radio frequency, microwave and terahertz frequency range, the physical characteristics that is used for moisture in cut tobacco, solid particulate matter and other material detects.
Background technology
Echo wall die (Whispering Gallery Mode) is the mode of resonance that a kind of form relies on, and it can produce in multiple difform closed medium, as disk, annulus, track type and spherical.In these structures, the specific inductive capacity of medium is greater than environment medium specific inductive capacity.When electromagnetic wave is propagated in these closed medium loop, form closed loop through the multiple total reflection of surface generation within it, produce resonance by positive feedback, form Whispering-gallery-mode.Based on the dielectric resonator of echo wall die have that the Q value is high, integrated level is high, insertion loss is little, the advantage such as low of crosstalking,, filtering, wavelength conversion, modulation, laser multiplexing at ripple, light signal is processed and the aspect such as sensing is widely used.
The resonance frequency of echo wall die resonator and its size, material and environment medium parameter are closely related.When as sensor, be adsorbed on its surperficial measured matter, to interact with the evanescent field of resonator outside as peptide class, protein molecule or nano particle, thereby change resonance frequency and the Q value of resonator, by measuring the physical characteristics that resonance frequency or Q value can the inverting measured matters, this is the detection principle of echo wall die sensor.
The research of relevant echo wall die mainly concentrates on the optics frequency range, and Application in Sensing is a main aspect.The evanescent field that is penetrated in the environment medium is stronger, and transducer sensitivity is higher.This is to have strengthened the interaction of ripple and material due to evanescent field, and therefore, strengthening the evanescent field osmotic effect is to improve the effective way of Whispering-gallery-mode transducer sensitivity.
In the Application in Sensing of echo wall die, operation wavelength is longer, and the evanescent field that is penetrated in the environment medium is more, reduces the frequency of operation of Whispering-gallery-mode, and increasing wavelength is the effective way of improving sensitivity.
Summary of the invention
In order further to improve the sensitivity of echo wall die sensor, the invention provides a kind of little belt surface echo wall die sensor, be characterized in that field distribution concentrates on sensor and environment medium interface.Compare with traditional echo wall die sensor, surperficial echo wall die sensor has more evanescent field to be penetrated in the environment medium, and strong with the interaction of environment medium, detection sensitivity is high.Simultaneously,, compare with light echo wall die sensor at microwave frequency band due to this working sensor, operating wave four orders of magnitude of growing up, the degree of depth that evanescent field is penetrated in the environment medium can reach several millimeters to tens centimetres, and therefore, the present invention is more suitable in using in industrial environment.
Realize the present invention, be characterized in utilizing the fold metal construction in the feature of microwave frequency band equivalence for negative permittivity, utilization forms the principle of surface wave on negative permittivity material and positive dielectric constant material interphase, the fold metal construction is bent to form closed loop, thereby cause the surface wave on dielectric interface to form vibration because of positive feedback, produce surperficial echo wall die, these are different from the principle of traditional echo wall die of introducing in background technology.Be the fold metal surface structure of d rectangle square hole for the cycle of opening on the metal surface, if square hole is of a size of
, in square hole, the specific inductive capacity of material is
, magnetic permeability is
, the effective dielectric constant of this metal construction is
, here,
,
Be the light velocity.Obviously, when
The time, the effective dielectric constant of fold metal surface structure is for negative.
A kind of little belt surface echo wall die sensor, this sensor comprises: the little band metal patch 1 of fold, dielectric substrate 2, microstrip transmission line 3, coaxial/microstrip transitions device 4, excite receiving trap 5.The little band metal patch of described fold is the negative dielectric constant dielectric material in the microwave frequency band equivalence, is used to form resonator cavity, and microstrip transmission line is used for this resonator cavity of excitation, produces surperficial echo wall die; The little band metal patch of fold is attached on dielectric substrate; Coaxial/microstrip transitions device is used for realizing concentric cable transmission mode and little mutual conversion with transmission mode; Excite receiving trap to comprise and excite and receiving trap two parts, excitation apparatus is for generation of the adjustable microwave signal of frequency, and receiving trap is for detection of the output signal of microstrip transmission line, and they complete the detection of environment medium physical parameter jointly.
The invention has the beneficial effects as follows: the fold that the present invention adopts is little is negative dielectric material in the microwave frequency band equivalence for specific inductive capacity with metal patch, this material forms surperficial echo wall die together with the environment medium, because maximum field strength appears on sensor and environment medium interphase, strong with the interaction of environment medium, thereby its sensitivity is higher.Be planar microstrip structure due to what adopt, have the characteristics such as making is simple, easily batch production, cost is low, robustness is good; Light echo wall die working sensor wavelength is short, and the evanescent field that is penetrated in the environment medium only is systems, thereby is mainly used in the detection of biological sample; Little belt surface echo wall die working sensor wavelength is long, and the evanescent field that is penetrated in the environment medium can reach several millimeters even tens centimetres, thereby the detection that is more suitable in industrial environment is used; The frequency of operation of sensor depends on the specific inductive capacity of the little structure with metal patch of fold, size and backing material, can allow as required this working sensor in radio frequency, microwave and terahertz frequency range, thereby its range of application is wider.
Description of drawings:
A kind of little belt surface echo wall die sensor front view of Fig. 1 the present invention.
A kind of little belt surface echo wall die sensor left view of Fig. 2 the present invention.
A kind of little belt surface echo wall die sensor embodiment master TV structure schematic diagram of Fig. 3 the present invention.
The left TV structure schematic diagram of a kind of little belt surface echo wall die sensor embodiment of Fig. 4 the present invention.
The Electric Field Distribution simulation result of a kind of little belt surface echo wall die sensor of Fig. 5 the present invention, pattern count is 11.
The test pattern of a kind of little belt surface echo wall die sensor of Fig. 6 the present invention.
As figure: 1, the little band metal patch of fold, 2, dielectric substrate, 3, microstrip transmission line, 4, coaxial/microstrip transitions device, 5, excite receiving trap, 6, tested material.
Embodiment:
By Fig. 1, shown in Figure 2, in the present embodiment, a kind of little belt surface echo wall die sensor, this sensor comprises: the little band metal patch 1 of fold, dielectric substrate 2, microstrip transmission line 3, coaxial/microstrip transitions device 4, excite receiving trap 5, tested material 6; The common resonance structure that forms of the little band metal patch 1 of described fold and dielectric substrate 2, microstrip transmission line 3 is used for this resonance structure of excitation, the resonance frequency of this structure is relevant with specific inductive capacity and the loss of tested material 6 with amplitude, the higher resonance frequency of the specific inductive capacity of tested material 6 is lower, the larger resonance amplitude of the loss of tested material 6 is lower, and these two parameters have comprised specific inductive capacity and the loss information of tested material 6; Described coaxial/microstrip transitions device 4 is used for connecting and excites receiving trap 5 and microstrip transmission line, coaxial/microstrip transitions device 4 is sub-miniature A connectors, excite receiving trap 5 for generation of with detect swept-frequency signal.
By Fig. 3, shown in Figure 4, in the present embodiment, the little band metal patch 1 external radius R=15.9mm of fold, inside radius r=10.9mm, fold is counted N=60, and fold cycle d=5mm stitches wide a=2mm, depth of folding h=3.5mm, conducting ring thickness u=1.5mm, microstrip transmission line 3 length L=40mm, microstrip transmission line 3 width w=1mm, microstrip transmission line 3 baseplate width v=2.1mm, fold is little is s=1mm with the coupling distance between metal patch 1 and microstrip transmission line 3; Dielectric substrate 2 materials are FR4, and its specific inductive capacity is 4.3.
By shown in Figure 5, in the present embodiment, provided the surperficial echo wall die distribution map of the electric field that utilizes software CST emulation to obtain, the position of dotted line mark is the little band metal patch of fold 1 external radius present position; On dotted line, the circle of 22 black shows that pattern count is 11, the more black field intensity of circle is stronger, as seen from the figure, maximum field appears on the little interface with metal patch and environment medium of fold, this has clearly illustrated the different of the present invention and other echo wall die sensor patent, be that surperficial echo wall die sensor has more evanescent field to be penetrated in the environment medium, strong with the interaction of environment medium.
Adopting the present invention to be respectively 7%, 8%, 9% pipe tobacco with moisture measures as tested material 6.During measurement, pipe tobacco is positioned over dielectric substrate 2 tops uniformly,, produces the frequency sweep microwave signal, and detect its amplitude versus frequency characte, as shown in Figure 6 as exciting receiving trap 5 with network analyzer (HP E8362B).As seen from the figure, be respectively 7%, 8%, 9% pipe tobacco tested material 6 for moisture, absorption peak is at 8.294GHz, 8.185GHz, 8.065GHz amplitude is-22.75dB ,-23.26dB,-27.20dB, therefore, moisture is higher, and specific inductive capacity and the loss of tested material are larger, resonance frequency is lower, and resonance amplitude is lower.
The above is described enforcement of the present invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, can also make many forms, within this all belongs to protection of the present invention.
Claims (8)
1. a little belt surface echo wall die sensor, is characterized in that, this sensor comprises: the little band metal patch of fold, dielectric substrate, microstrip transmission line, coaxial/microstrip transitions device, excite receiving trap.
2. after exciting frequency sweep microwave signal that receiving trap produces by coaxial/microstrip transitions device, encouraged transmission wave in microstrip transmission line, the evanescent field at microstrip transmission line edge is coupled to the little band metal patch of fold, and formation resonance produces surperficial echo wall die; Excite receiving trap to detect the transmission coefficient of microstrip transmission line, the variation of environment medium physical parameter is embodied in the variation of transmission coefficient harmonic peak position and amplitude.
3. little belt surface echo wall die sensor as claimed in claim 1, it is characterized in that: the little fold size with metal patch of described fold is much smaller than wavelength, be negative permittivity material in radio frequency, microwave and the equivalence of terahertz frequency range, when its environment medium with positive specific inductive capacity forms interface, to produce surface wave, when interface forms closed loop, produce positive feedback and form surperficial echo wall die.
4. little belt surface echo wall die sensor as claimed in claim 1, it is characterized in that: the little band metal patch of described fold is closing structure, is shaped as circle, ellipse, polygon, and its girth is the integral multiple of electromagnetic wavelength.
5. little belt surface echo wall die sensor as claimed in claim 1, it is characterized in that: described microstrip transmission line is little relevant with the coupling distance between metal patch and operation wavelength with fold, and is adjustable according to designing requirement.
6. little belt surface echo wall die sensor as claimed in claim 1, it is characterized in that: described microstrip transmission line has broadband character, and backing material is the low dielectric loss material, as teflon, aluminium oxide.
7. little belt surface echo wall die sensor as claimed in claim 1 is characterized in that: described coaxial/the microstrip transitions device carries out the pattern conversion between concentric cable-microstrip transmission line-concentric cable.
8. little belt surface echo wall die sensor as claimed in claim 1, is characterized in that: described receiving trap generation frequency sweep microwave signal, the transmission coefficient of detection microstrip transmission line of exciting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100558564A CN103091340A (en) | 2013-02-22 | 2013-02-22 | Micro-strip surface whispering gallery mode sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100558564A CN103091340A (en) | 2013-02-22 | 2013-02-22 | Micro-strip surface whispering gallery mode sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103091340A true CN103091340A (en) | 2013-05-08 |
Family
ID=48204172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100558564A Pending CN103091340A (en) | 2013-02-22 | 2013-02-22 | Micro-strip surface whispering gallery mode sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103091340A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401050A (en) * | 2013-06-19 | 2013-11-20 | 云南大学 | Electromagnetic wave focuser based on whispering gallery (WG) mode |
| CN105044046A (en) * | 2015-06-01 | 2015-11-11 | 上海理工大学 | Terahertz wave organic matter detection device and method based on disk periodic structure |
| RU2585255C2 (en) * | 2013-05-22 | 2016-05-27 | Олег Креонидович Сизиков | Moisture meter-dielcometer (versions) |
| RU2665692C1 (en) * | 2017-11-21 | 2018-09-04 | Общество с ограниченной ответственностью "Конструкторское бюро "Физэлектронприбор" | Method and device for measuring physical parameters of material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005116615A1 (en) * | 2004-05-26 | 2005-12-08 | Genera Biosystems Pty Ltd | Biosensor using whispering gallery modes in microspheres |
| US20070147732A1 (en) * | 2005-12-28 | 2007-06-28 | Honeywell International, Inc. | Sensor using ultra thin waveguides and optical fibers |
| US7283707B1 (en) * | 2001-07-25 | 2007-10-16 | Oewaves, Inc. | Evanescently coupling light between waveguides and whispering-gallery mode optical resonators |
| CN101750280A (en) * | 2008-12-08 | 2010-06-23 | 吴群林 | Whispering-gallery-mode fiber optic biosensor |
| CN102326108A (en) * | 2008-12-30 | 2012-01-18 | 3M创新有限公司 | Optical microresonator system |
| CN102520062A (en) * | 2011-12-29 | 2012-06-27 | 中国科学院长春光学精密机械与物理研究所 | Echo wall sensor based on sound evanescent field coupling |
| US8331008B1 (en) * | 2008-10-14 | 2012-12-11 | Oewaves, Inc. | Photonic microwave and RF receivers based on electro-optic whispering-gallery-mode resonators |
-
2013
- 2013-02-22 CN CN2013100558564A patent/CN103091340A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7283707B1 (en) * | 2001-07-25 | 2007-10-16 | Oewaves, Inc. | Evanescently coupling light between waveguides and whispering-gallery mode optical resonators |
| WO2005116615A1 (en) * | 2004-05-26 | 2005-12-08 | Genera Biosystems Pty Ltd | Biosensor using whispering gallery modes in microspheres |
| US20070147732A1 (en) * | 2005-12-28 | 2007-06-28 | Honeywell International, Inc. | Sensor using ultra thin waveguides and optical fibers |
| US8331008B1 (en) * | 2008-10-14 | 2012-12-11 | Oewaves, Inc. | Photonic microwave and RF receivers based on electro-optic whispering-gallery-mode resonators |
| CN101750280A (en) * | 2008-12-08 | 2010-06-23 | 吴群林 | Whispering-gallery-mode fiber optic biosensor |
| CN102326108A (en) * | 2008-12-30 | 2012-01-18 | 3M创新有限公司 | Optical microresonator system |
| CN102520062A (en) * | 2011-12-29 | 2012-06-27 | 中国科学院长春光学精密机械与物理研究所 | Echo wall sensor based on sound evanescent field coupling |
Non-Patent Citations (4)
| Title |
|---|
| J. J. YANG ET AL: "Surface whispering-gallery mode", 《EUROPHYSICS LETTERS》 * |
| J.J. WOOD ET AL: "spoof plasmon polriton in slanted geometries", 《PHYSICS REVIEW》 * |
| MING HUANG ET AL.: "Simulation and Analysis of a Metamaterial Sensor Based on a", 《SENSORS》 * |
| 张婧等: "生物传感器环形微腔的谐振特性研究＊?", 《云南大学学报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2585255C2 (en) * | 2013-05-22 | 2016-05-27 | Олег Креонидович Сизиков | Moisture meter-dielcometer (versions) |
| CN103401050A (en) * | 2013-06-19 | 2013-11-20 | 云南大学 | Electromagnetic wave focuser based on whispering gallery (WG) mode |
| CN103401050B (en) * | 2013-06-19 | 2015-10-21 | 云南大学 | A kind of electromagnetic wave focalizer based on echo wall die |
| CN105044046A (en) * | 2015-06-01 | 2015-11-11 | 上海理工大学 | Terahertz wave organic matter detection device and method based on disk periodic structure |
| CN105044046B (en) * | 2015-06-01 | 2018-04-20 | 上海理工大学 | A kind of THz wave organic matter detection device and method based on disk periodic structure |
| RU2665692C1 (en) * | 2017-11-21 | 2018-09-04 | Общество с ограниченной ответственностью "Конструкторское бюро "Физэлектронприбор" | Method and device for measuring physical parameters of material |
| WO2019103655A3 (en) * | 2017-11-21 | 2019-07-25 | Олег Креонидович СИЗИКОВ | Method and device for measuring the physical parameters of a material |
| US11249033B2 (en) | 2017-11-21 | 2022-02-15 | Oleg Kreonidovich Sizikov | Method and device for measuring the physical parameters of a material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107490727B (en) | A kind of dielectric constant measurement method of composite microwave sensor and measured object | |
| CN110531164B (en) | Microwave sensor for measuring dielectric constant based on SIW-CSRR | |
| CN103091340A (en) | Micro-strip surface whispering gallery mode sensor | |
| CN102798624A (en) | Near-field Raman biosensor based on echo wall mode | |
| KR20100063353A (en) | Probe and antenna | |
| CN105006616B (en) | A kind of THz wave time-domain spectral system based on ultra-wideband chip | |
| CN106486729A (en) | Compact closed-loop resonator based on artificial surface phasmon | |
| CN107462774B (en) | A kind of dielectric property test device and measurement method | |
| CN205720052U (en) | A kind of coupling Ω type complementary resonance microwave remote sensor | |
| US9551655B2 (en) | Metamaterial sensor platforms for terahertz DNA sensing | |
| CN105371790B (en) | Cavity resonant type micro-wave low coverage measurement sensor with cut-off waveguide radiation port | |
| CN105547337A (en) | MIM annular notch groove structure sensor | |
| CN204832482U (en) | At piece S parameter co -planar waveguide TRL calibration piece | |
| CN103777121A (en) | Multi-band ultrahigh frequency narrow band sensor for transformer substation local discharge detecting and positioning | |
| CN112198388A (en) | Method for testing anti-interference sensitivity of artificial surface plasmon transmission line | |
| CN205404447U (en) | Asymmetric couple of opening resonant transducer of complementary type based on microstrip | |
| CN205175928U (en) | Humorous mode of vibration sensor of annular fold structures microstrip | |
| CN209526205U (en) | A kind of radio frequency sensor and Metal Crack detection system that communication is isolated with sensing | |
| CN113267672B (en) | 6G communication microwave power detection system based on radio frequency diode | |
| La Spada et al. | Metamaterial resonator arrays for organic and inorganic compound sensing | |
| Boccard et al. | Near-field interrogation of SAW resonators on rotating machinery | |
| Fu et al. | A Differential Active SLSP-Based Microwave Sensor for Liquid Characterization | |
| Yasin et al. | Fiber‐optic displacement sensor using a multimode bundle fiber | |
| Xu et al. | Miniaturized microwave microfluidic sensor based on spoof localized surface plasmons | |
| CN206095988U (en) | Microwave sensor based on dull and stereotyped waveguide structure in fold surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130508 |