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1156 results about "Dielectric resonator" patented technology
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A dielectric resonator is a piece of dielectric (nonconductive) material, usually ceramic, that is designed to function as a resonator for radio waves, generally in the microwave and millimeter wave bands. The microwaves are confined inside the resonator material by the abrupt change in permittivity at the surface, and bounce back and forth between the sides. At certain frequencies, the resonant frequencies, the microwaves form standing waves in the resonator, oscillating with large amplitudes. Dielectric resonators generally consist of a "puck" of ceramic that has a large dielectric constant and a low dissipation factor. The resonant frequency is determined by the overall physical dimensions of the resonator and the dielectric constant of the material.
Apparatus and system for transmitting power wirelessly
ActiveUS20090128262A1Improve efficiencyIncrease powerResonatorsLoop antennasElectric power transmissionTransmitted power
An apparatus for transmitting power wirelessly is provided. The apparatus comprises: a dielectric resonator which generates evanescent waves in a predetermined direction in order to transmit power; and a loop antenna which is coupled to a surface of the dielectric resonator and supplies power to the dielectric resonator. The dielectric resonator transmits power by means of evanescent waves generated in directions perpendicular to top and bottom surfaces of the dielectric resonator and by radiation in directions parallel to the top and bottom surfaces of the dielectric resonator. Accordingly, efficient power transmission over short and long distance ranges is possible.
Owner:SAMSUNG ELECTRONICS CO LTD +1
Wideband circularly polarized hybrid dielectric resonator antenna
ActiveUS8928544B2High bandwidthCompact geometryAntenna supports/mountingsAntennas earthing switches associationDielectric resonator antennaPhase difference
The present invention provides a dielectric resonator antenna comprising: a dielectric resonator; a ground plane, operatively coupled with the dielectric resonator, the ground plane having four slots; and a substrate, operatively coupled to the ground plane, having a feeding network consisting of four microstrip lines; wherein the four slots are constructed and geometrically arranged to ensure proper circular polarization and coupling to the dielectric resonator; and wherein the antenna feeding network combines the four microstrip lines with a 90 degree phase difference to generate circular polarization over a wide frequency band.
Owner:HER MAJESTY THE QUEEN AS REPRESENTED BY THE MINIST OF NAT DEFENCE OF HER MAJESTYS CANADIAN GOVERNMENT
Dielectric resonator array antenna
InactiveUS20140043189A1Improve featuresIndividually energised antenna arraysElectrically short antennasTime delaysDielectric resonator antenna
Disclosed herein is a dielectric resonator array antenna including one or more series-feed type array elements installed to be arranged in parallel in a multilayer substrate, wherein first high frequency signals having the same or different phases or time delays are adjusted to be applied to the respective series-feed type array elements and respective radiated 1D array beams are individually used or combined to adjust beamforming of 2D array beams. Also, since the series-feed type array element is configured by connecting a plurality of dielectric resonator antennas in series, it can be easily and simply fed in series through coupling generated by the intervals between the feeding lines of the pertinent feeding unit of the plurality of dielectric resonator antennas connected in series. In addition, the broadband characteristics can be obtained by using the plurality of dielectric resonator antennas, whereby the overall antenna performance can be enhanced.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD +1
Dielectric-resonator array antenna system
InactiveUS20060082516A1Simultaneous aerial operationsAntenna adaptation in movable bodiesDielectric resonator antennaLight beam
A dielectric resonator element array (DRA) antenna system and method for using same is disclosed. The dielectric resonator antenna system includes a ground plain, a feed structure, an array of dielectric resonator elements electrically coupled to the feed structure, each dielectric element having a relatively high permittivity, a radome close to or in contact with the array of dielectric resonator elements, an object mounting apparatus for mounting the antenna system on an object, and a beam shaping and steering controller, the beam shaping and steering controller controlling the feed structure to thereby control excitation phases of the dielectric resonator elements.
Owner:STRICKLAND PETER C
Apparatus and system for transmitting power wirelessly
ActiveUS7843288B2Improve efficiencyIncrease powerSimultaneous aerial operationsRadiating elements structural formsElectric power transmissionElectric force
An apparatus for transmitting power wirelessly is provided. The apparatus comprises: a dielectric resonator which generates evanescent waves in a predetermined direction in order to transmit power; and a loop antenna which is coupled to a surface of the dielectric resonator and supplies power to the dielectric resonator. The dielectric resonator transmits power by means of evanescent waves generated in directions perpendicular to top and bottom surfaces of the dielectric resonator and by radiation in directions parallel to the top and bottom surfaces of the dielectric resonator. Accordingly, efficient power transmission over short and long distance ranges is possible.
Owner:SAMSUNG ELECTRONICS CO LTD +1
Dielectric resonant antenna using a matching substrate
ActiveUS20110248891A1Low dielectric constantReduce sensitivitySimultaneous aerial operationsRadiating elements structural formsDielectric resonator antennaDielectric resonator
Disclosed herein is a dielectric resonator antenna using a matching substrate in order to improve a bandwidth. The dielectric resonator antenna includes: a dielectric resonator body part that is embedded in a multi-layer substrate and has an opening part on the upper portion thereof; and at least one matching substrate that is stacked on the opening part and includes an an insulating layer having a dielectric constant smaller than that of the multi-layer substrate but larger than that of air, thereby making it possible to improve the bandwidth without adjusting the size of the dielectric resonator body part and to prevent loss and change in the radiation pattern due to the substrate mode.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD +1
Tunable Dielectric Resonator Circuit
A dielectric resonator circuit is provided that is tunable over a broad frequency range and / or a broad bandwidth range. The center frequency is made tunable over a broad range by use of a dielectric tuning plug that is positioned in a through hole within the resonator. The bandwidth is made tunable over a broad range by tilting the resonators relative to the enclosure to increase the effective height of the cavity as seen by the resonator.
Owner:COBHAM DEFENSE ELECTRONICS SYST CORP
Apparatus and methods for packaging dielectric resonator antennas with integrated circuit chips
InactiveUS20070164420A1Improve antenna performanceReduce lossSemiconductor/solid-state device detailsSolid-state devicesCommunications systemDielectric resonator
Apparatus and methods are provided for integrally packaging antenna devices with semiconductor IC (integrated circuit) chips, wherein IC chips are packaged with dielectric resonators antennas that are integrally constructed as part of a package molding (encapsulation) process, for example, to form compact integrated radio / wireless communications systems for millimeter wave applications.
Owner:IBM CORP
Dielectric resonator, dielectric filter, dielectric duplexer, and communication device
InactiveUS6556101B1Reducing losses in dielectric resonatorsReduce conduction lossResonatorsWaveguidesElectrical conductorDielectric resonator
A small-sized low-loss dielectric resonator, dielectric filter, and dielectric duplexer, and a communication device using such an element. Through-holes are formed in a dielectric block. The inner surface of each through-hole is covered with a thin-film multilayer electrode consisting of an outermost conductive layer and a multilayer region including thin-film conductive layers and thin-film dielectric layers. An outer conductor having a similar thin-film multilayer electrode structure is formed on the outer surface of the dielectric block. An outer conductor in the form of a single-layer electrode is formed on a short-circuited end face of the dielectric block thereby connecting together the thin-film conductive layers of the inner and outer conductors.
Owner:MURATA MFG CO LTD
Wideband circularly polarized hybrid dielectric resonator antenna
ActiveUS20120212386A1High bandwidthCompact geometryPolarised antenna unit combinationsAntennas earthing switches associationDielectric resonator antennaPhase difference
The present invention provides a dielectric resonator antenna comprising: a dielectric resonator; a ground plane, operatively coupled with the dielectric resonator, the ground plane having four slots; and a substrate, operatively coupled to the ground plane, having a feeding network consisting of four microstrip lines; wherein the four slots are constructed and geometrically arranged to ensure proper circular polarization and coupling to the dielectric resonator; and wherein the antenna feeding network combines the four microstrip lines with a 90 degree phase difference to generate circular polarization over a wide frequency band.
Owner:HER MAJESTY THE QUEEN AS REPRESENTED BY THE MINIST OF NAT DEFENCE OF HER MAJESTYS CANADIAN GOVERNMENT
Adjusted directivity dielectric resonator antenna
InactiveUS6344833B1Simultaneous aerial operationsRadiating elements structural formsDielectric resonator antennaDual band antenna
A dielectric resonator antenna having a resonator formed from a dielectric material mounted on a ground plane with a conductive skirt. The ground plane is formed from a conductive material. First and second probes are electrically coupled to the resonator for providing first and second signals, respectively, to or receiving from the resonator. The first and second probes are spaced apart from each other. The first and second probes are formed of conductive strips that are electrically connected to the perimeter of the resonator and are substantially orthogonal with respect to the ground plane. A dual band antenna can be constructed by positioning and connecting two dielectric resonator antennas together. Each resonator in the dual band configuration resonates at a particular frequency, thereby providing dual band operation. The resonators can be positioned either side by side or vertically. Further advantage is obtained by mounting the dual antenna stack within a radome.
Owner:QUALCOMM INC
Dielectric resonator antenna embedded in multilayer substrate for enhancing bandwidth
ActiveUS20110248890A1Easy to manufactureMinimize changesSimultaneous aerial operationsRadiating elements structural formsDielectric resonator antennaDielectric resonator
Disclosed herein is a dielectric resonator antenna embedded in a multilayer substrate for enhancing bandwidth. The dielectric resonator antenna includes a multilayer substrate, a first conductive plate, a second conductive plate, a plurality of first metal via holes, a feeding part configured to feed a dielectric resonator, and a conductive pattern part inserted into the dielectric resonator so that a vertical metal interface is formed in the dielectric resonator. Accordingly, the dielectric resonator antenna has low sensitivity to fabrication errors and an external environment, and can enhance the radiation characteristics of the antenna when multiple resonances occur.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD
Electronic part, dielectric resonator, dielectric filter, duplexer, and communication device comprised of high TC superconductor
InactiveUS6470198B1Superconductors/hyperconductorsSuperconductor devicesElectrical conductorSilver electrode
In a dielectric resonator, a superconductor is formed on two neighboring surfaces of a cubic dielectric body, and the superconductors formed on each two neighboring surfaces are connected by a silver electrode formed in the vicinity of the edge where the neighboring two surfaces join.
Owner:MURATA MFG CO LTD
Low noise figure radiofrequency device
InactiveUS7738853B2Small sizeMinimizing volume of cavityResonant long antennasSubstation equipmentLow noiseCoaxial resonators
A RF device such as a tower mounted amplifier (TMA), mast-head amplifier (MHA), or Tower Mounted Boosters (TMB) includes a housing having a plurality of cavities and an input and an output, the input being coupled to the antenna and the output being coupled to a base station. The housing includes a transmission path holding multiple coaxial resonators. The housing further includes multiple receive paths including at least one path having a plurality of cavities, each cavity containing a dielectric resonator. The metallic transmit resonator nearest the antenna input is coupled to the first dielectric resonator via a common resonant wire. The last dielectric resonator in the receive path is coupled to a first metallic resonator of a downstream clean-up filter via another common resonant wire.
Owner:ANTONE WIRELESS CORP
Dielectric-patch resonator antenna
InactiveUS6292141B1Simultaneous aerial operationsRadiating elements structural formsDielectric resonator antennaConductive materials
A dielectric-patch resonator antenna having a resonator formed from a dielectric material mounted on a ground plane with a conductive skirt, and a patch element disposed inbetween. The ground plane and patch are formed from conductive materials. First and second probes are electrically coupled to the resonator for providing first and second signals, respectively, to or receiving from the resonator. The first and second probes are spaced apart from each other. The first and second probes are formed of conductive strips that are electrically connected to the perimeter of the resonator and are substantially orthogonal with respect to the ground plane. A dual band antenna can be constructed by positioning and connecting two dielectric resonator antennas together. Each resonator in the dual band configuration resonates at a particular frequency, thereby providing dual band operation. The resonators can be positioned either side by side or vertically.
Owner:QUALCOMM INC
Meta-material resonator antennas
ActiveUS20150380824A1Effective electrical permittivityPhotomechanical apparatusSemiconductor/solid-state device manufacturingPermittivityDielectric resonator
Antennas suitable for use in compact radio frequency (RF) applications and devices, and methods of fabrication thereof. Described are resonator antennas, for example dielectric resonator antennas fabricated using polymer-based materials, such as those commonly used in lithographic fabrication of integrated circuits and microsystems. Accordingly, lithographic fabrication techniques can be employed in fabrication. The antennas have metal inclusions embedded in the resonator body which can be configured to control electromagnetic field patterns, which serves to enhance the effective permittivity of the resonator body, while creating an anisotropic material with different effective permittivity and polarizations in different orientations.
Owner:UNIVERSITY OF SASKATCHEWAN
Dielectric resonator antenna embedded in multilayer substrate
InactiveUS20110133991A1Easy to makeLittle changeSimultaneous aerial operationsRadiating elements structural formsDielectric resonator antennaDielectric resonator
Disclosed is a dielectric resonator antenna embedded in a multilayer substrate, which includes a multilayer substrate, a first conductor plate having an opening, a second conductor plate formed on the bottom of a lowermost insulating layer resulting from stacking at least two insulating layers downward from the first conductor plate, a plurality of metal via holes passing through around the opening at a predetermined interval, and a feeder for transmitting a frequency signal to the dielectric resonator embedded by the metal boundaries defined by the first conductor plate, the second conductor plate and the plurality of metal via holes, thus exhibiting low sensitivity to fabrication error and the external environment.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD
Dielectric-patch resonator antenna
InactiveUS20020196190A1Simultaneous aerial operationsRadiating elements structural formsDielectric resonator antennaGround plane
Owner:QUALCOMM INC
Polymer-based resonator antennas
ActiveUS20140327597A1Improve the effective dielectric constantPhotosensitive material processingAntennas earthing switches associationDielectric resonator antennaDielectric resonator
Dielectric resonator antennas suitable for use in compact radiofrequency (RF) antennas and devices, and methods of fabrication thereof. Described are dielectric resonator antennas fabricated using polymer-based materials, such as those commonly used in lithographic fabrication of integrated circuits and microsystems. Accordingly, lithographic fabrication techniques can be employed in fabrication. The polymer-based dielectric resonator antennas can be excited using tall metal vertical structures, which are also fabricated using techniques adapted from integrated circuit and microsystems fabrication.
Owner:UNIVERSITY OF SASKATCHEWAN +1
Method and device for measuring dielectric constant
InactiveUS6496018B1Dielectric property measurementsMaterial analysis using microwave meansSample MeasureResonance
The sample measuring face of a dielectric resonator (20) is placed near a standard sample having a known dielectric constant at a fixed interval D. While appropriately varying the dielectric constant and thickness of the standard sample under the above condition, the variation of the resonance frequency of the dielectric resonator (20) is measured for each varied dielectric constant and thickness to draw a calibration curve of the varied resonance frequency depending on the dielectric constant and thickness. Under the same condition where calibration curve is drawn, the variation of the resonance frequency of the dielectric resonator (20) for a sample having a known thickness is measured. The dielectric constant of the sample is found from the measurement value and the calibration curve. The dielectric constant of not only a sheetlike sample but also a three-dimensional molded article or a liquid sample can be measured easily.
Owner:OJI PAPER CO LTD
Flow measurements
ActiveUS20100145636A1Resistance/reactance/impedenceVolume/mass flow by dynamic fluid flow effectResonanceMeasuring instrument
This invention relates to a measuring instrument for measurement of a flow (1) comprising—a dielectric resonator sensor (3) arranged in a pipeline (2), said resonator (3) having a surface (4) facing a flow volume,—a sensor drive unit (12) being coupled to said sensor (3) and which is adapted to provide a driving or excitation signal to said sensor (3) resulting in the excitation of an electromagnetic resonance in said sensor causing a fringing electromagnetic field (5) adjacent to said surface (4) facing said wet gas flow (1),—a recording unit (10) coupled to said sensor (3) and which is adapted to measure a resonance property of said sensor (3) while said wet gas flow (1) moves past said sensor surface (4), and—a processing unit (11) which is adapted to estimate a property of at least a part of said wet gas flow (1).
Owner:ROXAR FLOW MEASUREMENT
Multi-mode filter
A multi-mode cavity filter, comprising: a dielectric resonator body incorporating a piece of dielectric material, the piece of dielectric material having a shape such that it can support at least a first resonant mode and a second substantially degenerate resonant mode; a conductive layer substantially covering the dielectric resonator body but having one or more apertures therein allowing access to the dielectric resonator body; and a coupling structure arranged in an aperture of the one or more apertures, comprising at least one coupling path for at least one of coupling an input signal to the first and second resonant modes and coupling an output signal from the first and second resonant modes, the coupling path having an open-circuit end located adjacent to an edge of the aperture for controlling a strength of electric field generated by the coupling structure.
Owner:MESAPLEXX
Dielectric resonator antenna
InactiveUS20150207233A1Reduce processing costsReduce manufacturing costAntenna earthingsAntennas earthing switches associationCouplingDielectric resonator antenna
Disclosed is a dielectric resonator antenna. The dielectric resonator antenna includes: a dielectric resonator; an antenna layer formed inside the dielectric resonator, and including a plurality of vias positioned at a surrounding area of the dielectric resonator; a metal pattern forming an opened surface in an upper portion of the antenna layer; a dielectric layer configured to cover the metal pattern on the dielectric resonator; an internal ground pattern including a coupling aperture for inputting a signal into the dielectric resonator under the dielectric resonator; and a feeding layer including a strip transmission line for transmitting a signal to the dielectric resonator, and positioned under the antenna layer.
Owner:ELECTRONICS & TELECOMM RES INST
Radio-frequency radiation source, radio frequency radiation source array, antenna module, and radio equipment
InactiveUS6188360B1Simultaneous aerial operationsRadiating elements structural formsRadio equipmentDielectric plate
A radio-frequency radiation source comprises electrodes containing opposing electrodeless parts formed on both sides of a dielectric plate in which the electrodeless parts are made to function as a dielectric resonator, a slit formed in the electrodeless part, and a switching element mounted over the slit. Further, a transmission line coupled to the dielectric resonator is provided. As constructed this way, the resonance frequency of the resonator is switched by turn-on and turn-off of the switching element. When the resonator resonates with the frequency of a signal propagated through the transmission line, the energy of the electromagnetic field is radiated to the outside through a slot.
Owner:MURATA MFG CO LTD
High power superconductive circuits and method of construction thereof
InactiveUS6041245AReduce current densityHigh Power Handling CapabilitySuperconductors/hyperconductorsSuperconductor devicesMicrowaveHigh-temperature superconductivity
A high power high temperature superconductive circuit for use in various microwave devices including filters, dielectric resonator filters, multiplexers, transmission lines, delay lines, hybrids and beam-forming networks has thin gold films deposited either on a substrate or on top of the high temperature superconductive film. Alternatively, other metal films can be used or a plurality of dielectric films can be used or a dielectric constant gradient substrate can be used. The use of these materials in a part or parts of a microwave circuit reduces the current density in those parts compared to the level of current density if only high temperature superconductive film is used. This increases the power handling capability of the circuit.
Owner:COM DEV LTD
Multimode dielectric resonator device, dielectric filter, composite dielectric filter and communication device
Two TE modes whose electric-field rotating planes have a perpendicular relationship are coupled independently of the coupling between two TM modes whose electric-field directions have the same respective perpendicular relationships. In a multimode dielectric resonator device producing four modes: TM01δ_x mode, TM01δ_y mode, TE01δ_x mode, and TE01δ_y mode, protrusions (Pe1), (Pe2) are disposed on an upper-layer (La) and a lower-layer of a dielectric core (1) to cause a difference in effective dielectric constants of individual parts through which even-mode and odd-mode electric flux of the TE coupling modes passes. A protrusion (Pc) is formed on a middle-layer Lb of the dielectric core (1) such that the effective dielectric constants of the parts through which even-mode and odd-mode electric flux of the TM coupling modes pass become substantially equal. Thereby, the TE01δ_x mode and TE01δ_y mode are coupled while restraining the coupling of the TM01δ_x mode and the TM01δ_y mode.
Owner:MURATA MFG CO LTD
Dielectric resonator antenna
InactiveUS7253789B2Efficiently slot feedingHigh gainIndividually energised antenna arraysSlot antennasCouplingResonance
Owner:ANTENOVA LTD +1
Dielectric-resonator array antenna system
InactiveUS20050264449A1High gainInterference minimizationSimultaneous aerial operationsAntenna adaptation in movable bodiesLight beamArray element
A dielectric resonator element array (DRA) antenna system that is small, compact, has high gain in the direction of intended communication, minimized interference in unintended directions of communication and a wide bandwidth. The antenna system comprises a ground plane, a feed structure, a beam shaping and steering controller, a mounting apparatus, an array of dielectric resonator elements and a radome that is close to or in contact with the array. The mounting apparatus preferably is configured so as not to appreciably increase the size of the system when mounted. The controller receives and processes information relating to one or more of object latitude, longitude, attitude, direction of travel, intended direction of communication and unintended directions of communication. The controller processes this information and determines excitation phase for the array elements.
Owner:EMS TECH CANADA
Duplexer and communication apparatus with first and second filters, the second filter having plural switch selectable saw filters
InactiveUS6483399B1Reduce the amount requiredSatisfactory characteristicMultiple-port networksPiezoelectric/electrostrictive/magnetostrictive devicesCommunications systemFrequency filtering
A duplexer and a communication apparatus incorporating the same which are suitable for use in communication systems with wide frequency bands and narrow separations, and which can be miniaturized while having satisfactory characteristics. The duplexer has a transmission filter constituted of a variable frequency filter in which PIN diodes are connected to dielectric resonators and a reception filter constituted of two surface acoustic wave filters and a switching circuit. In the transmission filter, one of the higher and lower sides of a transmission frequency band can be selected according to a voltage applied to a first voltage control terminal. In addition, in the reception filter, one of the two surface acoustic wave filters can be selected according to a voltage applied to a second voltage control terminal.
Owner:MURATA MFG CO LTD
Dielectric resonator antenna with a caved well
InactiveUS7292204B1Small sizeSimple structureAntenna earthingsElectrically short antennasDielectric resonator antennaDielectric substrate
A dielectric resonator antenna is a dielectric resonator mounted on a feed-in / feed-out component. The dielectric resonator is a rectangular parallelepiped made of a dielectric, and has a caved well passing through from the top surface to the bottom surface thereof. The feed-in / feed-out component includes a dielectric substrate, a ground metal layer and a strip metal layer coated on the top surface and the bottom surface, respectively, of the dielectric substrate. An etched part is provided on the ground metal layer. Wherein, the dielectric resonator with the caved well is mounted on the ground metal layer of the feed-in / feed-out component.
Owner:NAT TAIWAN UNIV
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