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67 results about "Transformation optics" patented technology
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Transformation optics applies metamaterials to produce spatial variations, derived from coordinate transformations, which can direct chosen bandwidths of electromagnetic radiation. This can allow for the construction of new composite artificial devices, which probably could not exist without metamaterials and coordinate transformation. Computing power that became available in the late 1990s enables prescribed quantitative values for the permittivity and permeability, the constitutive parameters, which produce localized spatial variations. The aggregate value of all the constitutive parameters produces an effective value, which yields the intended or desired results.
Luminaire control system and method
ActiveUS20080215279A1Reduce the differenceElectroluminescent light sourcesElectric light circuit arrangementLight equipmentControl system
The present invention provides a system and method for controlling one or more light-emitting elements which are driven by forward currents to generate mixed light for use, for example, through a luminaire. The system has one or more light sensors for acquiring feedback optical sensor data and a user interface for providing reference data representative of a desired mixed light. The system also has a controller for transforming either the sensor data or the reference data into the coordinate space of the other and to determine a difference between the sensor and the reference data in that coordinate space. The controller is configured to adjust the forward currents during operating conditions so that the sensor data matches the setpoint data. The present invention also provides a system and method that can at least partially compensate certain temperature induced effects when transforming the optical sensor or the reference data.
Owner:SIGNIFY HLDG BV
Luminaire control system and method
ActiveUS7868562B2Reduce the differenceElectroluminescent light sourcesElectric light circuit arrangementLight equipmentControl system
The present invention provides a system and method for controlling one or more light-emitting elements which are driven by forward currents to generate mixed light for use, for example, through a luminaire. The system has one or more light sensors for acquiring feedback optical sensor data and a user interface for providing reference data representative of a desired mixed light. The system also has a controller for transforming either the sensor data or the reference data into the coordinate space of the other and to determine a difference between the sensor and the reference data in that coordinate space. The controller is configured to adjust the forward currents during operating conditions so that the sensor data matches the setpoint data. The present invention also provides a system and method that can at least partially compensate certain temperature induced effects when transforming the optical sensor or the reference data.
Owner:SIGNIFY HLDG BV
Apparatus for synthesizing laser beams
InactiveUS20040233964A1Semiconductor laser arrangementsSemiconductor laser structural detailsOptical axisLight beam
Laser beams are synthesized by offsetting in different positions in the direction of the fast axis beam bundles radiated from semiconductor lasers, converging the optical axes of the beam bundles in the fast axis view, and introducing the beam bundles into an optical fiber after converging them in the directions of the fast and slow axes. A convergent angle transforming optical system is disposed further upstream of the upstream-most position in the positions where the optical axes of the beam bundles converged in the fast axis view intersect in the fast axis view. The whole beam bundle formed of the beam bundles converged in the fast axis view is passed through the convergent angle transforming optical system so that the angle of convergence of the whole beam bundle or part of the beam bundles is made smaller in the fast axis view, and introduced into the optical fiber.
Owner:ADTEC ENG +1
Tensor Transmission-Line Metamaterials
ActiveUS20110209110A1Working bandwidthReduce lossLighting support devicesSoftware simulation/interpretation/emulationDistributed circuitEngineering
Tensor transmission-line metamaterial unit cells are formed that allow the creation of any number of optic / electromagnetic devices. A desired electromagnetic distribution of the device is determined, from which effective material parameters capable of creating that desired distribution are obtained, for example, through a transformation optics / electromagnetics process. These effective material parameters are then linked to lumped or distributed circuit networks that achieve the desired distribution.
Owner:RGT UNIV OF MICHIGAN
Optical Probe Using Multimode Optical Waveguide and Proximal Processing
An optical probe includes an optical source that generates an optical beam that propagates from a proximal end to a distal end of an optical fiber that imparts a transformation of a spatial profile of the optical beam. An optical control device imparts a compensating spatial profile on the optical beam that at least partially compensates for the transformation of the spatial profile of the optical beam imparted by the optical fiber in response to a control signal from a signal processor. A distal optical source generates a calibration light that propagates through the one or more optical waveguides from the distal end to the proximal end of the optical fiber. An optical detector detects the calibration light and generates electrical signals in response to the detected calibration light. The signal processor generates the control signal to instruct the optical control device to impart the compensating spatial profile on the optical beam that at least partially compensates for the transformation of the spatial profile of the optical beam imparted by the optical fiber.
Owner:SWANSON ERIC +1
Polarization modulated image conjugate piston sensing and phase retrieval system
A system for detecting piston diversity between mirror segments. The system includes a pupil plane mask, a transform optical element, and an image detector. The pupil plane mask includes two or more open mask areas and two or more polarizers. Each polarizer is disposed within a respective one of the open mask areas. A first one of the two or more polarizers has a first polarization orientation, and a second of the two or more polarizers has a second polarization orientation.
Owner:HARRIS CORP
Integrated design of device with three-dimensional all-medium non-resonant metamaterial structure and manufacturing process
ActiveCN102393865AReduce lossEasy to expand in 3DSpecial data processing applicationsIntegrated designEngineering
The invention discloses an integrated design of a device with a three-dimensional all-medium non-resonant metamaterial structure and a manufacturing process. In the invention, the transform optics and the effective-medium theory are taken as the base, crisscrossed columns and diamond unit cells are used as a structure unit to be designed, and then the three-dimensional full-medium metamaterial structure with super broadband, low loss, easiness in three-dimensional expansion and the like is obtained; a photocuring rapid prototyping process is adopted for realizing the integrated design and themanufacture of the all-medium non-resonant three-dimensional metamaterial structure at a microwave frequency band (GHz); and a set of process method of integrated design and the manufacture of microscopic unit organizations and macroscopic three-dimensional structures for microwave invisible devices is set up.
Owner:XI AN JIAOTONG UNIV
Liquid crystal display backlight and liquid crystal display device using same
InactiveUS20110228195A1Thin structureImprove reliabilityOptical light guidesNon-linear opticsLiquid-crystal displayLight guide
An LCD backlight (10) has a light source (12) that emits a laser light, a lens (21), a mirror (13), a rotary polygon mirror (14), a scanning lens (15) and a return mirror (16) constituting a transforming optical system that transforms the laser light from the light source (12) to a linear light, and a light guiding plate (17) that allows the linear light to enter and emits two-dimensional light in the horizontal direction. An emission end face (19) of the light source (12) is disposed in a rear face side of the light guiding plate (17) so that a surface normal line thereof is in the horizontal direction or is inclined downward from the horizontal direction, and the lens (21), mirror (13) and scanning lens (15) are disposed in the rear face side of the light guiding plate (17), so that surface normal lines of the light transmission surface and light reflection surface thereof are all in the horizontal direction or are inclined downward from the horizontal direction.
Owner:PANASONIC CORP
Beam combining device and beam combining method for Bragg grating external cavity laser module
ActiveCN110323672ASolve the problem of low beam qualitySimple structureSemiconductor laser arrangementsLaser arrangementsExternal cavity laserGrating
Owner:SUZHOU EVERBRIGHT PHOTONICS CO LTD +1
Laser composite wave appts.
InactiveCN1519613AShorten the lengthReliable miniaturizationLaser detailsGirdersOptical axisLight beam
The object of the present invention is to provide a compact and high output laser light coupler device. The solutions includes that each laser light beam La, Lb, Lc is emitted by a plurality of semiconductor laser 11A, 11B, 11C, passes a convergence lens 120, and is converged in the FAST axis. And light axis of each light beam La, Lb, Lc installs a convergence angle varying optical system 30 which is more upstream than the most upstream position Pa which is crossed position, looked in the FAST axis. The convergence angle varying optical system 30 makes convergence angle of the whole light beam which is made of each light beam La, Lb, Lc and which passes through a convergence-divergence optical system 120, become smaller convergence angle in the FAST axis, and makes the whole light beam emit into the core 41 of optical fiber 40.
Owner:ADTEC ENG
Luminaire control system and method
ActiveCN101558686AReduce the differenceReduce the absolute valueElectrical apparatusElectroluminescent light sourcesLight equipmentControl system
The present invention provides a system and method for controlling one or more light-emitting elements which are driven by forward currents to generate mixed light for use, for example, through a luminaire. The system has one or more light sensors for acquiring feedback optical sensor data and a user interface for providing reference data representative of a desired mixed light. The system also has a controller for transforming either the sensor data or the reference data into the coordinate space of the other and to determine a difference between the sensor and the reference data in that coordinate space. The controller is configured to adjust the forward currents during operating conditions so that the sensor data matches the setpoint data. The present invention also provides a system and method that can at least partially compensate certain temperature induced effects when transforming the optical sensor or the reference data.
Owner:SIGNIFY HLDG BV
Wide angle scanning ellipsoidal dielectric lens antenna based on phased array feed
InactiveCN109088173ALow profileAvoid the problem that the dielectric constant is too low to be equivalentIndividually energised antenna arraysAs elementCommunications system
The invention discloses a wide angle scanning ellipsoidal dielectric lens antenna based on phased array feed applied to a wide-angle scanning and multi-beam directional communication system. Its basicstructure consists of an elliptical dielectric lens with five layers of dielectric and a 1*9 phased array with a microstrip patch as elements. The lens antenna is compressed in thickness by conversion optics, keeps the focusing performance of the original spherical Luneberg lens; at the same time, the antenna is easy to process because the dielectric constant range is controlled; according to thesuperposition algorithm of element patterns, he element amplitude and phase of the phased array are optimized, so that the accurate wide-angle scanning is realized, and the gain is improved comparedwith the phased array. The application of the phased array fed lens antenna in the lower profile and wide-angle scanning is better solved, and it can play a better role in the multi-beam directional communication and wide-angle scanning system. Based on the basic structure of the invention, other specific embodiments of the invention can be formed by reasonably changing the filling medium type, antenna size, feed unit form and array arrangement mode.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Apparatus for synthesizing laser beams
InactiveUS7339975B2Small sizeIncrease productionSemiconductor laser arrangementsSemiconductor laser structural detailsOptical axisLight beam
(Problem to be solved) To provide a laser beam synthesizing apparatus which is small in size and high in output power.(Means for solving the problem) A convergent angle transforming optical system 30 is disposed further upstream of the upstream-most position Pa in the positions where the optical axes of beam bundles La, Lb, Lc . . . which are radiated from a plurality of semiconductor lasers 11A, 11B, 112C . . . and converged in the fast axis view by a converging / dispersion lens 120 intersect each other in the fast axis view, and the whole beam bundle made up of the beam bundles La, Lb, Lc . . . passed through the converging / dispersion lens 120 is converged in the fast axis view by the convergent angle transforming optical system 30 so that the angle of convergence of the whole beam bundle is made smaller in the fast axis view, and introduced into the core 41 of an optical fiber 40.
Owner:ADTEC ENG +1
Inspection apparatus
InactiveUS20090202138A1High-throughput and high-sensitivity inspectionOptics SimplifiedMaterial analysis by optical meansCharacter and pattern recognitionCatoptricsField of view
The present invention provides an inspection apparatus having a high throughput and high sensitivity with respect to a number of various manufacturing processes and defects of interest in inspection of a specimen such as a semiconductor wafer on which a pattern is formed. The apparatus illuminates with light the specimen having the pattern formed thereon, forms an image of the specimen on an image sensor through a reflective optics, and determines the existence / nonexistence of a defect. The reflective optics has a conjugate pair of Fourier transform optics. An aberration of the reflective optics is corrected off-axis. The reflective optics has a field of view in non-straight-line slit form on the specimen surface. Also, the optics is of a reflection type, includes a conjugate pair of Fourier transform optics and has a field of view in non-straight-line slit form. An optimum wavelength band is selected according to the specimen (FIG. 1).
Owner:HITACHI HIGH-TECH CORP
Method for designing full-planar convex lens based on meta-materials
The invention relates to a method for designing a full-planar convex lens based on meta-materials, comprising the steps as follows: S01, determining space transformation on the basis of the structure of an original convex lens; S02, selecting a function which can realize space transformation of the convex lens, and determining a complete coordinate transformation relation; and S03, calculating the material parameters of meta-materials in all the spaces of a planar convex lens based on the optical principle of transformation. Compared with the prior art, the invention designs a convex lens which has both a full-planar structure and the optical properties of a conventional convex lens, the designed convex lens has a wide range of application, the design method is simple and feasible and is easy to implement, and the designed convex lens is easy to install, debug and integrate.
Owner:SHANGHAI NORMAL UNIVERSITY
Method and system for preparing filter membrane mesh structure by laser interference photoetching technology
ActiveCN101980083AParameters can be adjustedStructural parameters are controllablePhotomechanical exposure apparatusMicrolithography exposure apparatusMicro nanoBeam expander
The invention discloses a method and a system for preparing a filter membrane mesh structure by laser interference photo-etching technology. The system can generate images with different intervals by different exposure methods of the laser interference photo-etching technology. A photoetched image is generated by regulating and controlling light intensity distribution in an interference field by a specified light beam combination method, and ablating the surface of a processed material by using modulated redistributed laser energy. The system consists of a laser, a beam expander, a beam splitter, a reflecting mirror, a polaroid and a mechanism for clamping and regulating the optical elements and devices. By changing the relative arrangement position of the optical devices, an incident angle of a related light beam which is irradiated on the surface of a substrate material is changed so as to regulate parameters of a micro-mesh structure of the surface of the processed material. The system can realize adjustability of photo-etching characteristic sizes from nanometers to hundreds of microns. By optical phase shifting or mechanical shifting of a sample, repeated exposure or repeated exposure interpolation, a high-density micro-nano filter membrane mesh structure can be prepared.
Owner:CHANGCHUN UNIV OF SCI & TECH
Gradient refractive index medium lens and gradient refractive index medium lens antenna
InactiveCN102769208AEasy to implementWorking frequency bandwidthAntennasLensRegular distributionRadar
The invention provides a gradient refractive index medium lens and a gradient refractive index medium lens antenna, wherein a refractive index distribution of a semi-cylindrical gradient refractive index medium lens meets a formula disclosed in the specification, and a refractive index distribution of a hemispheric gradient refractive index medium lens meets a formula disclosed in the specification. According to the principle of optical transformation, the refractive index of the semi-cylindrical or hemispheric gradient refractive index medium lens is obtained by adopting conformal transformation calculation and is greater than 1. The semi-cylindrical or hemispheric gradient refractive index medium lens has the advantages of regular distribution, convenience for realization, and wide working band, can not only be used for imaging singly but also be used in the fields of communication and radar by increasing a reflecting surface, and is cooperated with other devices to form an antenna system. According to the gradient reflective index medium lens antenna provided by the invention, the semi-cylindrical or hemispheric gradient refractive index medium lens is used as a main body, thereby having the advantages of good directionality.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Otdm transmission method and apparatus
InactiveUS20070109957A1Sufficient toleranceSmall dispersionTime-division optical multiplex systemsWavelength-division multiplex systemsFrequency spectrumLow speed
An OTDM transmitting method and transmitter realizing an OTDM distortion-free transmission substantially not relying upon dispersion. A time division multiplexed OTDM signal from an OTDM signal transmitter (1) enters an optical Fourier transform unit (2). Optical Fourier transform can be carried out most accurately so long as the optical pulse is a chirp-free Fourier transform limit pulse. The optical Fourier transform unit (2) converts the time waveform of the pulse into a signal on the frequency axis, and an optical inverse Fourier transform unit (2′) converts a spectral shape on the frequency axis into a time waveform (pulse). An optical fiber transmission line (3) is a transmission line having an arbitrary dispersion and a polarization mode dispersion. These dispersions may involve a time variation. An OTDM signal receiver (4) demultiplexes a transmission signal into low-speed optical signals, in a light region, receives optical pulses for respective channels and converts them into electric signals.
Owner:JAPAN SCI & TECH CORP
5G massive MIMO luneberg lens antenna applied to low frequency band
ActiveCN111244641ASmall amount of calculationReduce energy consumptionRadio transmissionAntennas earthing switches associationData streamSoftware engineering
The invention discloses a 5G massive MIMO luneberg lens antenna applied to a low frequency band. The 5G massive MIMO luneberg lens antenna comprises a spherical or ellipsoidal artificial dielectric lens, N groups of + / -45-degree cross polarization feed sources which are arranged on the back surface of the artificial dielectric lens, and P groups of radio frequency TR components which are placed onthe back surfaces of the reflecting plates of the feed sources for realizing signal transceiving, wherein P is less than or equal to N. The 5G massive MIMO luneberg lens antenna further comprises P groups of switch matrixes which are respectively and correspondingly connected with the radio frequency TR components and are used for realizing beam forming, P groups of channel analog-to-digital components which are correspondingly connected with the switch matrixes, and P groups of data stream encoders which are respectively and correspondingly connected with the channel analog-to-digital components and are used for realizing channel digital precoding. The multi-beam high-gain Luneberg lens antenna is realized in the field of 5G mobile communication in a low-frequency band (698 to 960MHz frequency band) through conversion optics, and the problems of long wavelength, large size, high cost and difficulty in realizing massive MIMO when a traditional plate-shaped antenna is applied to the low-frequency band are solved.
Owner:CHENGDU XINGUANG MICROWAVE ENG
Method and apparatus for high-throughput inspection of large flat patterned media using dynamically programmable optical spatial filtering
InactiveUS20060186361A1Reduce resolutionAutomatic control devicesBeam/ray focussing/reflecting arrangementsSpatial light modulatorSpatial fourier transform
Owner:PHOTON DYNAMICS
Optical head device and optical disk unit capable of stable signal reproduction
The present invention relates to an optical head unit and an optical disk unit using the optical head unit. The head unit includes a wavefront transforming optical element control unit to controls a wavefront transforming optical element so as not to transform wavefront of a light beam focused on a recording layer by a focusing unit due to the thickness error of a light transmission layer positioned between the recording layer and the focusing unit based on an electrical signal outputted from a first light detector, and an output control unit that controls light amount of a light beam radiated by a light emitting unit based on the magnitude of the electrical signal outputted from the light detector.
Owner:KK TOSHIBA
Detector for spectrometry system
ActiveUS20180031468A1Small sizeReduce weightRadiation pyrometrySpectrum investigationElectricityElectrical connection
A compact spectrometer system comprising an improved detector is provided herein. The spectrometer system herein disclosed can comprises a filter, a Fourier transform optical element, and a detector. The detector can comprise a custom detector having a shape that corresponds to the pattern of light incident on the detector. The custom detector may comprise a plurality of separate detection areas, each area configured to detect a portion of the light pattern incident on the detector. The custom detector may comprise a material capable of detecting wavelengths in the short-wavelength infrared (SWIR) range. The custom detector may be configured to require a relatively low number of electrical connections such that it may be implemented using standard, low-cost electronic packaging techniques. An improved, custom detector as described herein can provide the functionality of a two-dimensional pixel array detector while being relatively simple and inexpensive to manufacture.
Owner:VERIFOOD
Liquid crystal display backlight and liquid crystal display device using same
InactiveUS8456588B2Show reliableThin structureOptical light guidesNon-linear opticsLiquid-crystal displayLight guide
An LCD backlight has a light source that emits a laser light, a lens, a mirror, a rotary polygon mirror, a scanning lens and a return mirror constituting a transforming optical system that transforms the laser light from the light source to a linear light. A light guiding plate allows the linear light to enter and emits two-dimensional light in the horizontal direction. An emission end face of the light source is disposed in a rear face side of the light guiding plate so that a surface normal line thereof is in the horizontal direction or is inclined downward from the horizontal direction. The lens, mirror and scanning lens are disposed in the rear face side of the light guiding plate, so that surface normal lines of the light transmission surface and light reflection surface thereof are all in the horizontal direction or are inclined downward from the horizontal direction.
Owner:PANASONIC CORP
Multi-beam antenna based on transformation optics
The invention relates to an antenna, in particular to a multi-beam antenna based on transformation optics. The multi-beam antenna is light in structure, easy to structure and small in size, and any N beams are generally suitable for the multi-beam antenna. Taking a four-beam antenna design as an example, each fixing plate is of a rectangular frame structure, a rectangular insertion groove is formed in the middle of each frame, and the two fixing plates are oppositely arranged. The two fixing plates are fixed into a whole through four fixing pillars. One ends of the four fixing pillars are located at the four corners of one fixing plate. The other ends of the four fixing pillars are located at the four corners of the other fixing plate. A rectangular lens installation window is formed between every two adjacent fixing pillars. Four lenses are fixedly embedded into the four lens installation windows respectively. N metal band strips are etched in each lens. A dipole antenna is located in the center of the area formed by the four lenses in a defined mode. The multi-beam antenna is suitable for occasions where multi-beam antennas are applied.
Owner:HARBIN INST OF TECH
Method for preparing borate-based crystal and laser oscillation apparatus
This invention provides a boric acid crystals that is useful to make wavelength conversion optical element and the like, which is made by dissolving water-soluble original material in water to make solution, evaporating water from the solution, either through sintering or not, to make culture material, and then fusing such culture material to make boric acid crystals. As a result, the boric acid crystals can be obtained simply in short time with low cost and further with excellent homogeneity and reliability. Also, this invention provides a laser oscillation apparatus with high reliability by using such crystals as wavelength conversion optical element.
Owner:JAPAN SCI & TECH CORP
Method for constructing constitutive parameters of metamaterial based on transformation optics
The invention provides a method for constructing constitutive parameters of a metamaterial based on the transformation optics. The metamaterial is used for preparing an OAM (Orbital Angular Momentum)beam generator. The constitutive parameters of the metamaterial comprise constitutive parameters of a transformation cylinder. The transformation cylinder is used for transforming a plane beam into avortex beam with a topological charge. The method for constructing the constitutive parameters of the metamaterial based on the transformation optics comprises the steps of obtaining a proportionalitycoefficient of the topological charge according to the vortex beam with the specific topological charge; determining a first functional relation between a plane wavefront and a target vortex wavefront by using a method of the transformation optics based on the proportionality coefficient; and substituting the first functional relation into a first formula, and substituting an obtained result intoa second formula to obtain the constitutive parameters of the transformation cylinder. According to the method, the transformation cylinder constitutive parameters of the metamaterial used for preparing the transformation cylinder can be accurately constructed according to the topological charge of the vortex beam to be formed based on the principle of the transformation optics.
Owner:X TRIP INFORMATION TECH CO LTD
Transformation-optical design of reconfigurable optical devices
ActiveUS20090147342A1Increase freedomHigh degree of designProgramme controlAnalogue computers for chemical processesTransformation opticsEngineering
The design method for complex electromagnetic materials is expanded from form-invariant coordinate transformations of Maxwell's equations to finite embedded coordinate transformations. Embedded transformations allow the transfer of electromagnetic field manipulations from the transformation-optical medium to another medium, thereby allowing the design of structures that are not exclusively invisible. A topological criterion for the reflectionless design of complex media is also disclosed and is illustrated in conjunction with the topological criterion to design a parallel beam shifter and a beam splitter with unconventional electromagnetic behavior.
Owner:DUKE UNIV
Illumination Source for an Inspection Apparatus, Inspection Apparatus and Inspection Method
ActiveUS20190346776A1Increase output powerReduce dependenceLaser detailsScattering properties measurementsLight beamMechanical engineering
An illumination source apparatus (500), suitable for use in a metrology apparatus for the characterization of a structure on a substrate, the illumination source apparatus comprising: a high harmonic generation, HHG, medium (502); a pump radiation source (506) operable to emit a beam of pump radiation (508); and adjustable transformation optics (510) configured to adjustably transform the transverse spatial profile of the beam of pump radiation to produce a transformed beam (518) such that relative to the centre axis of the transformed beam, a central region of the transformed beam has substantially zero intensity and an outer region which is radially outwards from the centre axis of the transformed beam has a non-zero intensity, wherein the transformed beam is arranged to excite the HHG medium so as to generate high harmonic radiation (540), wherein the location of said outer region is dependent on an adjustment setting of the adjustable transformation optics.
Owner:ASML NETHERLANDS BV
All-metal multi-beam lens antenna based on quasi-conformal transformation optics
The invention discloses an all-metal multi-beam lens antenna based on quasi-conformal transformation optics. The all-metal multi-beam lens antenna is applied to multi-beam directional communication and beam scanning. A basic structure of the antenna comprises a linear feed source array composed of a plurality of open ridge waveguide antennas, and upper and lower metal plates which are parallel toeach other. The lens antenna is filled with air, a metal cylinder is loaded on the inner side of a metal plate or different equal-height surfaces are etched, equivalent dielectric constant distribution required after the shape of the lens is changed is realized, a series of design and engineering application problems encountered in the process of designing the dielectric luneberg lens antenna working in the 5G millimeter wave frequency band are solved, and the lens antenna can be better applied to use scenes of multi-beam directional communication and beam scanning and corresponding market requirements. Based on the basic structure of the antenna, other specific embodiments of the invention can be formed by reasonably changing the antenna shape, the antenna size and the feed source form.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
A design method of conformal antenna based on transform optics
InactiveCN109101727ADifficulty of SimplificationAvoid dielectric constantDesign optimisation/simulationSpecial data processing applicationsAntenna designDirectional antenna
A conformal antenna design method based on transform optics relates to a conformal antenna. After angularly segmenting the regions before and after the transformation respectively, the conformal stretching transformation is applied to the corresponding sub-regions before and after the transformation. According to the segmented conformal transformation method, a first group of four-directional antennas is designed, wherein the region before transformation is a circle, the region after transformation is a square, and the partition mode adopts equal-interval partition, and the simulation result includes the simulation under different background materials, different directional antenna sizes, different partition angles and different material losses; in order to further prove that the segmentedconformal transformation method has good applicability to flexible regions, a second group of six-directional irregular directional antennas is designed according to the segmented conformal transformation method, wherein the region before the transformation is a circle, the region after the transformation is an irregular hexagon, and the parameters required for the rest of the design are consistent with those in the first group, and the directional performance of the antenna under different background materials is simulated.
Owner:XIAMEN UNIV
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