Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
42 results about "Dipole mode" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Extended range RFID system
InactiveUS20060028344A1Increase rangeAntenna supports/mountingsMechanical record carriersExtended coverageEngineering
A radio frequency identification (RFID) system for discs such as CDs, DVDs or minidiscs includes a special RFID transponder and antenna configuration. The discs normally include an outer metallized annular zone where information is stored, a central hole, and an inner annular zone between the hole and the outer annular zone. The transponder may be located in the inner annular zone, with antenna elements coupled to the transponder extending in opposite directions part way across the outer annular zone. Multilayer labels with a recess for the transponder chip, and antenna elements formed by conductive material may be employed to apply the RFID assembly to the discs. A monopole or dipole mode of antenna operation, prominently involving the metallized disc layer, results from the antenna configuration, and serves to more than double the range of the system.
Owner:AVERY DENNISON CORP
Dielectric and magnetic particles based metamaterials
InactiveUS20090040131A1High bandwidthEnhanced couplingLiquid surface applicatorsAdditive manufacturing apparatusPhysicsDipole mode
RF-optical metamaterials with (±ε, ±μ) figures-of-merit of interest are constructed from coupled magnetic and dielectric multi-resonant multi-disks (finite-size cylinders) or multi-sphere lattices arranged in a periodic or a random fashion to offer tailored magnetic and electric dipole moments. The present metamaterials include embedded particles arrays that provide coupled magnetic and electronic modes equivalent to L (inductor) and C (capacitor) circuit models. Novel arrangements of these dipole modes (L and C) tailor the transfer function to the physics of interest.
Owner:NORTHEASTERN UNIV
Orthogonal multi-antennas for mobile handsets based on characteristic mode manipulation
InactiveUS20150009075A1Reduce couplingReduce correlationSimultaneous aerial operationsAntenna supports/mountingsEngineeringOrthogonal matrix
A novel multi-antenna design approach is proposed to obtain uncorrelated and energy efficient antennas. By manipulating the chassis, more than one characteristic mode is enabled to resonate at frequency below 1 GHz. With proper excitations for different characteristic modes, which are inherently orthogonal to each other, well performed multiple antennas with low mutual coupling and correlation are achieved. Three examples of chassis manipulation, a bezel structure and two T-shaped structures with metal strips along the chassis, are introduced. With efficient excitations of the fundamental dipole mode and T-strip mode, two antennas with low correlations and high total antenna efficiencies are achieved, with both antennas covering one or more of the low frequency LTE bands 5, 6, 8, 12, 13, 14, 17, 18, 19, and 20 in combination with one or more of high frequency LTE bands 1, 2, 3, 4, 9, 10, 11, 15, 16, 21, 23, 24, and 25.
Owner:SONY MOBILE COMM INC
Dielectric and magnetic particles based metamaterials
InactiveUS7750869B2High bandwidthSmall lossAdditive manufacturing apparatusAntenna detailsInductorFigure of merit
Owner:NORTHEASTERN UNIV
Compact antenna system having folded dipole and/or monopole
ActiveUS20130002503A1Simultaneous aerial operationsAntenna supports/mountingsCapacitanceCapacitive coupling
An antenna and multi-antenna system are provided. Each antenna of the system is a mirror image and comprises first and second conductive elements each having a first end and a second end portion, the second end portions being capacitively coupled to each other. Each antenna can be operated as a lower-frequency folded dipole having a series capacitive gap which facilitates electrical lengthening of the antenna, or as a higher-frequency monopole antenna having a parasitic element which facilitates improved bandwidth. The antennas' feedpoints may be placed at opposite corners of a ground plane, and separated by a distance which is less than one quarter of an operating wavelength of the dipole but greater than one quarter of an operating wavelength of the monopole. Locating the feedpoints at the ground plane corners facilitates orthogonal polarization of the two antennas at least in dipole mode. The antennas thus provided exhibit good isolation.
Owner:NETGEAR INC
Topological bulk laser based on energy band inversion light field limiting effect and method
ActiveCN110932091AImprove stabilityExtended service lifeLaser detailsSemiconductor lasersLine widthParticle physics
Owner:PEKING UNIV
Slotline antenna
ActiveUS20150035707A1Reduce dispersionIncrease signal ratioPolarised antenna unit combinationsAntenna radiation diagramsEngineeringAntenna element
An inventive antenna comprises two antenna elements forming a planar slotline antenna. The antenna furthermore comprises absorber elements surrounding the antenna elements on two layers. The absorber elements are shaped to partially cover the antenna elements and partially not cover the antenna elements. Moreover, they are shaped to dampen at least a dipole-mode of the antenna elements and not to dampen a slotline-mode of the antenna elements.
Owner:ROHDE & SCHWARZ GMBH & CO KG
Antenna mounting printed-circuit board
InactiveUS7034750B2Narrowing band widthLower impedanceSimultaneous aerial operationsPrinted circuit detailsElectrical conductorComputer module
A chip-like printed antenna in which an open end is formed by at least two antenna conductors separated from each other is mounted on a printed-circuit board. A ground required by one or plural other modules is disposed and mounted on the printed-circuit board so as to surround a remaining area of a surrounding area of the printed antenna except a partial area as indicated by oblique line parts. By this, in the printed-circuit board , a radiation electric field does not come to have a dipole mode, but is formed into a balloon shape and is radiated in one direction as indicated by a broken line.
Owner:SONY CORP
While-drilling azimuth acoustic logging device and measurement method
The invention mainly belongs to the technical field of while-drilling logging, and specifically relates to a while-drilling azimuth acoustic logging device and a measurement method. The device is sequentially provided with a centering guide, a transmitting circuit, a transmitting transducer, a sound insulator, a receiving transducer array, a supersonic transducer and a receiving circuit on a drillcollar from a transmitting end to a receiving end. The device can work in a dipole mode or a polarized mode, and employs a fixed time interval measurement mode or an alternating time interval measurement mode according to the relation between the measurement time interval and the rotating speed of the device, so as to cover all fan regions around a well, and achieve the while-drilling azimuth acoustic measurement. The device solves the problems that all fan regions cannot be completely covered under the specific conditions of the fixed time interval measurement mode, rotating speed and measurement time interval, and the azimuth acoustic measurement cannot be achieved.
Owner:INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
Extended range RFID system
InactiveUS7443299B2Increase rangeAntenna supports/mountingsMechanical record carriersCircular discExtended coverage
A radio frequency identification (RFID) system for discs such as CDs, DVDs or minidiscs includes a special RFID transponder and antenna configuration. The discs normally include an outer metallized annular zone where information is stored, a central hole, and an inner annular zone between the hole and the outer annular zone. The transponder may be located in the inner annular zone, with antenna elements coupled to the transponder extending in opposite directions part way across the outer annular zone. Multilayer labels with a recess for the transponder chip, and antenna elements formed by conductive material may be employed to apply the RFID assembly to the discs. A monopole or dipole mode of antenna operation, prominently involving the metallized disc layer, results from the antenna configuration, and serves to more than double the range of the system.
Owner:AVERY DENNISON CORP
Polarizing reflector for multiple beam antennas
ActiveUS20200028273A1Individually energised antenna arraysAntenna earthingsPatch arrayDielectric substrate
A polarizing reflector for broadband antennas includes a flat dielectric substrate, a patch array layer formed by a bi-dimensionally periodic lattice of thin metallic patches along first and second perpendicular directions x, y, and a ground layer. All the patches have a same shape elongated along the second direction y and form electric dipoles when electrically excited along the second direction y. For each row the patches of the said row are interconnected by an elongated metallic strip oriented along the first direction x and having a width c. The geometry of the patch array, the thickness h and the dielectric permittivity εr of the substrate, and the width c of the elongated metallic strips are tuned so that the patch array including the elongated metallic strips induces a fundamental aperture mode and a complementary fundamental dipolar mode along two orthogonal TE and TM polarizations within a single operating frequency band or two separate operating frequency bands, and the differential phase between the two fundamental modes over the single or the first and second frequency bands being equal to ±90° or to an odd integer multiple of ±90°. The polarizing reflector can comprise also a curved substrate and a patch array layer formed by a bi-dimensionally lattice of metallic patches along first curvilinear rows and second curvilinear columns.
Owner:THALES SA
Card type indoor ceiling suction wideband antenna
InactiveCN101388490AReduce volumeReduce weightAntenna supports/mountingsRadiating elements structural formsWide bandDipole mode
The invention discloses a card-type indoor top-absorbing wide band antenna, which comprises a circuit board which is used to receive and transmit the energy of electromagnetic wave, a radio frequency connector which is arranged on the opposite side of the circuit board, is welded with the circuit board, and is used to be the interface for connecting the antenna and other equipment, and a medium nut which is used to fix the circuit board and the radio frequency connector on an indoor ceiling. The card-type indoor top-absorbing wind band antenna is used on an indoor wireless signal network cover, which has the advantages of small volume, light weight, low height and simple and convenient processing. The card-type indoor top-absorbing wind band antenna is printed on the circuit board, which adopts a symmetry dipole mode, does a step impedance conversion optimization for oscillators, and enables the antenna to work on a wide band which is bigger than three frequency doubling. The card-type indoor top-absorbing wind band antenna solves the shortcomings of bad concealment of a traditional indoor top-absorbing antenna which influences indoor decorated environment.
Owner:北京东方信联科技有限公司
Compact antenna system having folded dipole and/or monopole
An antenna and multi-antenna system are provided. Each antenna of the system is a mirror image and comprises first and second conductive elements each having a first end and a second end portion, the second end portions being capacitively coupled to each other. Each antenna can be operated as a lower-frequency folded dipole having a series capacitive gap which facilitates electrical lengthening of the antenna, or as a higher-frequency monopole antenna having a parasitic element which facilitates improved bandwidth. The antennas' feedpoints may be placed at opposite corners of a ground plane, and separated by a distance which is less than one quarter of an operating wavelength of the dipole but greater than one quarter of an operating wavelength of the monopole. Locating the feedpoints at the ground plane corners facilitates orthogonal polarization of the two antennas at least in dipole mode. The antennas thus provided exhibit good isolation.
Owner:NETGEAR INC
Extended range RFID system
InactiveCN1781115AExpand the range of couplingRecord information storageRecording signal processingSoftware engineeringConductive materials
A radio frequency identification (RFID) system for discs such as CDs, DVDs or minidiscs includes a special RFID transponder and antenna configuration. The discs normally include an outer metallized annular zone (20) where information is stored, a central hole (28), and an inner annular zone (26) between the hole and the outer annular zone. The transponder (24) may be located in the inner annular zone, with antenna elements (32, 34) coupled to the transponder extending in opposite directions part way across the outer annular zone. Multilayer labels with a recess for the transponder chip, and antenna elements formed by conductive material may be employed to apply the RFID assembly to the discs. A monopole or dipole mode of antenna operation, prominently involving the metallized disc layer, results from the antenna configuration, and serves to more than double the range of the system.
Owner:AVERY DENNISON CORP
RFID label antenna
InactiveCN103594795AHas anti-metal propertiesRadiating elements structural formsAntenna couplingsAntenna substrateDipole mode
The embodiment of the invention provides an RFID label antenna with a metal-resisting characteristic. The RFID label antenna is characterized by comprising an artificial magnetic conductor structure floor, an antenna substrate and an antenna body, wherein the antenna body is attached above the antenna substrate, the antenna substrate is located above the artificial magnetic conductor structure floor, and a printed dipole mode is adopted for the antenna structure.
Owner:ZTE INTELLIGENT IOT TECH
Dielectric resonator based on equivalent localized surface plasmon polaritons and working method thereof
InactiveCN109755713AAchieving Multipole ResonanceInfinitely smallResonatorsEffective surfaceDielectric resonator antenna
The invention discloses a dielectric resonator based on equivalent local area type surface plasmon polaritons and a working method thereof. The dielectric resonator comprises a dielectric column, a metal patch and metal wires, the metal wires are periodically arranged along the side surface of the dielectric column, the metal patch is attached to the upper and bottom surfaces of the dielectric column and is connected with the metal wires. The main mode of the dielectric resonator is an electric dipole mode of the effective surface plasmon polariton, when the electromagnetic wave is incident onthe resonator at a certain frequency, the effective localized surface plasmon polaritons can be generated on a junction surface of the dielectric column and the external air under the induction of the metal wires, so that effective localized surface plasma resonance is generated. The resonant frequency of the main mode of the dielectric resonator in the invention changes along with the change ofthe height of the resonator and the dielectric constant of the medium, but the resonant frequency of the main mode is not sensitive to the change of the diameter of the resonator. Therefore, the volume of the dielectric resonator in the invention can be multiple times smaller than that of the traditional dielectric resonator.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Ultra-wideband planar antenna array applied to millimeter wave communication system
PendingCN114256614AEasy to integrateCompact structureAntenna arraysRadiating elements structural formsMillimeter wave communication systemsUltra-wideband
The invention provides an ultra-wideband planar antenna array applied to a millimeter wave communication system. The planar antenna array is composed of a plurality of antenna units arranged at equal intervals and a microstrip feed network. The antenna unit sequentially comprises a radiation patch, a first dielectric substrate, a bonding layer, a metal ground, a second dielectric substrate and a microstrip feeder line from top to bottom; the radiation patch is connected with the metal ground through four metal holes penetrating through the first dielectric substrate and the bonding layer; according to the design, the antenna unit can work in a dipole mode besides working in a patch mode. In the array environment, due to the mutual coupling effect between the units, another new medium resonance mode is excited at the same time. Therefore, the antenna unit provided by the invention can work in three resonant modes at the same time, so that the planar antenna array can realize ultra-wide working bandwidth, and the radiation in the working band is stable.
Owner:HANGZHOU DIANZI UNIV
Slotline antenna
ActiveUS9606158B2Improve directivityHigh bandwidthElectromagentic field characteristicsPolarised antenna unit combinationsAntenna elementDipole mode
An inventive antenna comprises two antenna elements forming a planar slotline antenna. The antenna furthermore comprises absorber elements surrounding the antenna elements on two layers. The absorber elements are shaped to partially cover the antenna elements and partially not cover the antenna elements. Moreover, they are shaped to dampen at least a dipole-mode of the antenna elements and not to dampen a slotline-mode of the antenna elements.
Owner:ROHDE & SCHWARZ GMBH & CO KG
Superconducting multi-cell trapped mode deflecting cavity
ActiveUS9786464B2Simple designHigh gradientTubes with resonator modulated electron streamResonatorsCouplingLight beam
A method and system for beam deflection. The method and system for beam deflection comprises a compact superconducting RF cavity further comprising a waveguide comprising an open ended resonator volume configured to operate as a trapped dipole mode; a plurality of cells configured to provide a high operating gradient; at least two pairs of protrusions configured for lowering surface electric and magnetic fields; and a main power coupler positioned to optimize necessary coupling for an operating mode and damping lower dipole modes simultaneously.
Owner:UCHICAGO ARGONNE LLC
Polarizing reflector for multiple beam antennas
ActiveUS10637152B2Radiating elements structural formsIndividually energised antenna arraysPatch arrayDielectric substrate
A polarizing reflector for broadband antennas includes a flat dielectric substrate, a patch array layer formed by a bi-dimensionally periodic lattice of thin metallic patches along first and second perpendicular directions x, y, and a ground layer. All the patches have a same shape elongated along the second direction y and form electric dipoles when electrically excited along the second direction y. For each row the patches of the said row are interconnected by an elongated metallic strip oriented along the first direction x and having a width c. The geometry of the patch array, the thickness h and the dielectric permittivity εr of the substrate, and the width c of the elongated metallic strips are tuned so that the patch array including the elongated metallic strips induces a fundamental aperture mode and a complementary fundamental dipolar mode along two orthogonal TE and TM polarizations within a single operating frequency band or two separate operating frequency bands, and the differential phase between the two fundamental modes over the single or the first and second frequency bands being equal to +90° or to an odd integer multiple of ±90°. The polarizing reflector can comprise also a curved substrate and a patch array layer formed by a bi-dimensionally lattice of metallic patches along first curvilinear rows and second curvilinear columns.
Owner:THALES SA
On-chip antenna and on-chip antenna array
PendingUS20210376482A1Low antenna gainLow costSimultaneous aerial operationsAntenna supports/mountingsSoftware engineeringDielectric resonator
An on-chip antenna comprising an electrically insulating substrate having first and second faces; a metal layer arranged on the second face; and, a dipole antenna structure arranged on the first face, the dipole antenna structure comprising a dipole antenna and a feed structure connected to the dipole antenna; the on-chip antenna being configured such that when the feed structure is fed with an electrical signal it operates simultaneously in (i) at least one dielectric resonator mode to function as a dielectric resonance antenna, and (ii) at least one dipole mode to function as a cavity backed dipole antenna.
Owner:CITY UNIVERSITY OF HONG KONG
Refractive index sensor based on asymmetric nanostructure perfect absorber, sensing test device and method
PendingCN114166799ARealize detectionSolve the limitation that it is difficult to break through the diffraction limitPhase-affecting property measurementsRefractive indexGold film
The invention provides a refractive index sensor based on an asymmetric nanostructure perfect absorber, a sensing test device and a sensing test method. The refractive index sensor comprises a substrate, a gold film, a spacing layer and a nanometer meniscus array, the gold film is evaporated on the substrate and is used for eliminating transmission; the spacing layer is arranged on the gold film and is used for spacing the gold film and the nano meniscus array; the nanometer meniscus array is arranged on the spacing layer, and when light irradiation and the nanometer meniscus array resonate, a local surface plasmon resonance dipole mode or a high-order mode is excited. According to the invention, by controlling and changing the polarization of incident light, different high-order local surface plasmon resonance modes are selectively excited by using the asymmetric nanometer meniscus perfect absorber, and the high-order plasmon resonance modes have relatively small radiation; and due to the perfect absorption property, the refractive index sensor utilizes inevitable loss in daily life, and transmission is reduced, so that the refractive index sensor has relatively high absorption, and the purposes of obtaining a narrow-band spectrum and improving the detection sensitivity of the sensing device are achieved.
Owner:DALIAN MARITIME UNIVERSITY
Method and device for imaging adjoining well by acoustic logging and storage medium
The embodiment of the invention discloses a method and device for imaging an adjoining well by acoustic logging. The method comprises the following steps of collecting dipole longitudinal wave data infour orientations when a dipole sound source is excitated, wherein the dipole sound source is in an orthogonal dipole mode; obtaining dipole longitudinal wave data in a plurality of geographic orientations through vector rotation according to the collected dipole longitudinal wave data in four orientations; carrying out deconvolution filtering processing on the obtained dipole longitudinal wave data in each orientation to obtain filtered sound wave data; carrying out wave field separation on the filtered sound wave data to obtain separated upstream reflective longitudinal wave data and downstream reflective longitudinal wave data; carrying out migration imaging processing on the upstream reflective longitudinal wave data and the downstream reflective longitudinal wave data obtained by separating the wave field in each geographic orientation to obtain imaging data of a borehole of the adjoining well. According to the scheme, the adjoining well can be imaged by means of acoustic logging.
Owner:CHINA OILFIELD SERVICES
Super-structured material-based surface-enhanced infrared substrate and molecule detection method thereof
ActiveCN110836860ALight field enhancementEnhanced electric fieldColor/spectral properties measurementsDipole modeThin membrane
The invention discloses a super-structured material-based surface-enhanced infrared substrate and a molecule detection method thereof. The infrared substrate is sequentially provided with a support substrate, a uniform surface plasmon film, and a periodic array. By regulating the period of the periodic array, the uniform surface plasmon film of the infrared substrate and an electric dipole mode are coupled to each other, so that the resonance wavelength of the latter changes, and the near-field electric field strength increases. When a molecule to be measured is absorbed or prepared on the infrared substrate, a surface-enhanced infrared absorption spectrum of the molecule to be measured can be tested through external infrared spectroscopic equipment. The uniform surface plasmon film is made of a metal material or a dielectric material whose real part of the dielectric constant is negative, and the thickness is greater than 200nm. The detection method comprise the following steps of (1)acquisition of an experimental test spectrum; (2) acquisition of a theoretical simulation spectrum; (3) construction of an evaluation function; (4) inversion solution; and (5) result analysis.
Owner:XIAMEN UNIV
Perfect circular polarization separator based on magnetoelectric coupling
PendingCN113777794AAchieve perfect circular polarization separationLow costOptical elementsCircular discRotational axis
The invention provides a perfect circular polarization separator based on magnetoelectric coupling. The separator is composed of a ceramic disc and a central air hole, the rotating axis of the ceramic disc and the rotating axis of the central air hole coincide, and the central air hole cannot penetrate through the ceramic disc, so that magnetoelectric coupling of the structure is realized, incident light is linear polarization planar light, and the propagation direction is perpendicular to the rotating axis of the structure. The polarization direction of the linear polarization plane light is parallel or perpendicular to the rotating axis of the structure. The ceramic material is adopted as a basic material, and the advantage of low cost is achieved; a complicated light source device for realizing perfect circular polarization separation in the past is simplified by plane light incidence; and the magnetoelectric coupling characteristic of the composite structure of the ceramic disc and the central air hole is beneficial to excitation of a longitudinal dipole mode which is difficult to excite by a common structure, so that a transverse spin dipole moment is constructed, and perfect separation of left-handed and right-handed circular polarization can be effectively realized.
Owner:HARBIN ENG UNIV
A compact saber antenna with reconfigurable pattern
ActiveCN110828984BRealize switchingCompact structureRadiating elements structural formsAntenna earthingsDielectric substrateRadiation mode
A compact saber antenna with reconfigurable pattern, including a metal floor, a dielectric substrate, a metal ring and a Π-shaped metal polygon; a thin slot is opened on the metal ring and a switch is located at the thin slot. Since the switch has two states of on and off, it can realize the switching of two radiation modes: monopole mode and dipole mode. When the switch is turned on, the antenna works in the monopole radiation mode, the metal ring is equivalent to a monopole antenna and the Π-shaped metal polygon acts as a reactance load, which can further reduce the resonant frequency and widen the bandwidth; when the switch is turned off, the metal ring is excited by coupling From the dipole mode of the Π-shaped metal polygon, the antenna works in the dipole radiation mode. The invention has the advantages of small size, small vertical sheet structure wind resistance and half-space angle coverage, etc., and is suitable for various compact saber antennas represented by airplanes that need to ensure maximum range angle communication coverage and low wind resistance.
Owner:常州安塔歌电子科技有限公司
Graphene-based light operation-control system and light operation-control method
The invention discloses a graphene-based light operation-control system. The system comprises a target particle at a target position and a wave beam generating apparatus; the target particle is a core-shell structure, and comprises core-layer graphene and shell-layer graphene; and the wave beam generating apparatus is used for generating a first-order Bessel wave beam to illuminate the target particle, so that respective electric dipole modes of the core-layer graphene and the shell-layer graphene are coupled with respective electric quadrupole modes to form Fano resonances, a light pulling force directed to the wave beam generating apparatus is applied to the target particle, and the target particle is moved to the wave beam generating apparatus. By illumination of the first-order Besselwave beam, forward scattering can be promoted while backward scattering can be suppressed, so that a relatively large negative optical force is obtained, movement of the target particle by pulling thetarget particle along a direction of the wave beam generating apparatus is realized, a distance between the target particle and the wave beam generating apparatus is shortened, and thereby movement of the target particle is realized. The invention also provides a light operation-control method which has the above beneficial effects.
Owner:SUZHOU UNIV
A graphene-based light manipulation system and light manipulation method
The invention discloses a graphene-based light operation-control system. The system comprises a target particle at a target position and a wave beam generating apparatus; the target particle is a core-shell structure, and comprises core-layer graphene and shell-layer graphene; and the wave beam generating apparatus is used for generating a first-order Bessel wave beam to illuminate the target particle, so that respective electric dipole modes of the core-layer graphene and the shell-layer graphene are coupled with respective electric quadrupole modes to form Fano resonances, a light pulling force directed to the wave beam generating apparatus is applied to the target particle, and the target particle is moved to the wave beam generating apparatus. By illumination of the first-order Besselwave beam, forward scattering can be promoted while backward scattering can be suppressed, so that a relatively large negative optical force is obtained, movement of the target particle by pulling thetarget particle along a direction of the wave beam generating apparatus is realized, a distance between the target particle and the wave beam generating apparatus is shortened, and thereby movement of the target particle is realized. The invention also provides a light operation-control method which has the above beneficial effects.
Owner:SUZHOU UNIV
A metamaterial-based surface-enhanced infrared substrate and its molecular detection method
ActiveCN110836860BLight field enhancementEnhanced electric fieldColor/spectral properties measurementsElectrical field strengthResonance wavelength
The invention discloses a surface-enhanced infrared substrate based on a metamaterial and a molecular detection method thereof. The infrared substrate is sequentially provided with a supporting substrate, a uniform surface plasmon thin film and a periodic array; by regulating the period of the periodic array, the infrared The uniform surface plasmon thin film of the substrate is coupled with the electric dipole mode, so that the resonance wavelength of the latter changes, and the near-field electric field strength is enhanced; when the molecules to be measured are adsorbed or prepared on the infrared substrate, through the external infrared The spectroscopic equipment can be used to obtain the surface-enhanced infrared absorption spectrum of the molecule to be tested. The uniform surface plasmon thin film is made of a metal material or a dielectric material with a negative real part of the dielectric constant, and its thickness is greater than 200 nm. The detection methods are: (1) experimental test spectrum acquisition; (2) theoretical simulation spectrum acquisition; (3) evaluation function construction; (4) inversion solution; (5) result analysis.
Owner:XIAMEN UNIV
Compact 5G dual-band millimeter wave linear array antenna based on SIW feed
ActiveCN113690634ATake advantage ofImprove selection flexibilityAntenna arraysRadiating elements structural formsSoftware engineeringMiniaturization
The invention discloses a compact 5G dual-band millimeter wave linear array antenna based on SIW feed, which is applied to 5G millimeter wave communication and comprises a multi-layer SIW power divider and a dipole slot combined dual-band antenna. In the power division network, a transverse seam is formed in a metal layer of the SIW and used for cutting surface current, so that electromagnetic wave energy conducted internally can be coupled to the upper layer through the seam. The basic structure of the power division network is similar to that of a T-shaped power divider, and the eight antenna units are fed in a three-stage cascade mode. A low-frequency dipole mode and high-frequency slot mode composite dual-frequency antenna is designed as an antenna unit by comprehensively considering loss and matching. Miniaturization and compactness of the linear array antenna structure are realized.
Owner:SOUTHWEST JIAOTONG UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com