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130 results about "Dielectric waveguides" patented technology
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A dielectric slab waveguide consists of three dielectric layers with different refractive indices. Practical rectangular-geometry optical waveguides are most easily understood as variants of a theoretical dielectric slab waveguide, also called a planar waveguide.
High frequency interconnect structures, electronic assemblies that utilize high frequency interconnect structures, and methods of operating the same
ActiveUS20120306587A1Lower potentialMultiple-port networksFrequency measurement arrangementEngineeringElectronic assemblies
High frequency interconnect structures, electronic assemblies that utilize high frequency interconnect structures, and methods of operating the same. The high frequency interconnect structures include a plurality of dielectric waveguides and are configured to communicatively connect a plurality of transmitters with a plurality of receivers and to convey a plurality of signals therebetween. The plurality of signals may include a plurality of electromagnetic waves and may have a frequency of at least 200 GHz. The high frequency interconnect structures further may be configured to decrease a potential for crosstalk between a first signal that is conveyed by a first dielectric waveguide of the plurality of dielectric waveguides and a second signal that is conveyed by a second dielectric waveguide of the plurality of dielectric waveguides, such as through control of a passband of the first dielectric waveguide relative to the second dielectric waveguide and / or the use of a crosstalk mitigation structure.
Owner:FORMFACTOR INC
Coax core insulator waveguide
InactiveUS7915980B2Fixed station waveguides transmission systemsWaveguidesElectricityElectrical conductor
A communication device consistent with certain implementations has a coaxial cable having length and first and second ends. The coaxial cable further has a central conductor, a dielectric insulator surrounding the central conductor, and an electric shield conductor surrounding the dielectric insulator. The dielectric insulator serves as a dielectric waveguide having a characteristic impedance Z at an operating frequency range. A termination for electrical energy coupled into or out of the dielectric insulator at approximately the characteristic impedance Z at the operating frequency range to utilize the dielectric insulator as a waveguide for transmission of signals along the length of the coaxial cable, and wherein the center conductor is further used to communicate an electrical signal between the first and second ends. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
Owner:SONY CORP +1
Apparatus for transitioning millimeter wave between dielectric waveguide and transmission line
InactiveUS20100253450A1Easy to provideLess timeOne-port networksResonatorsDielectric substrateMillimetre wave
Provided is an apparatus for transitioning a millimeter wave between dielectric waveguide and transmission line using a millimeter wave transition structure formed by the dielectric waveguide, the transmission line, and a slot to transition a signal with lower losses. The apparatus includes: transmission lines disposed respectively at input and output terminals on an uppermost dielectric substrate in a signal transition direction and adapted to transition a signal; a dielectric waveguide formed by a via array disposed between top and bottom ground surfaces of a lowermost dielectric substrate in the signal transition direction as a signal transition path; and slots disposed at a signal transition path of an upper ground surface of each dielectric substrate to connect the transmission lines to the dielectric waveguide so as to transition a signal from the transmission line of the input terminal to the transmission line of the output terminal through the dielectric waveguide.
Owner:ELECTRONICS & TELECOMM RES INST
Input/output coupling structure for dielectric waveguide having conductive coupling patterns separated by a spacer
ActiveUS7132905B2Less influenceReduce leakage and less of electromagnetic energyOne-port networksResonatorsCouplingConductive materials
Owner:MURATA MFG CO LTD
Low profile active electronically scanned antenna (AESA) for ka-band radar systems
InactiveUS20050146479A1Space is requiredPrevent RF leakageRadiating element housingsAntenna arrays manufactureTransceiverRadar systems
A vertically integrated Ka-band active electronically scanned antenna including, among other things, a transitioning RF waveguide relocator panel located behind a radiator faceplate and an array of beam control tiles respectively coupled to one of a plurality of transceiver modules via an RF manifold. Each of the beam control tiles includes a respective plurality of high power transmit / receive (T / R) cells as well as dielectric waveguides, RF stripline and coaxial transmission line elements. The waveguide relocator panel is preferably fabricated by a diffusion bonded copper laminate stack up with dielectric filling. The beam control tiles are preferably fabricated by the use of multiple layers of low temperature co-fired ceramic (LTCC) material laminated together. The waveguide relocator panel and the beam control tiles are designed to route RF signals to and from a respective transceiver module of four transceiver modules and a quadrature array of antenna radiators matched to free space formed in the faceplate. Planar type metal spring gaskets are provided between the interfacing layers so as to provide and ensure interconnection between mutually facing waveguide ports and to prevent RF leakage from around the perimeter of the waveguide ports. Cooling of the various components is achieved by a pair of planar forced air heat sink members which are located on either side of the array of beam control tiles. DC power and control of the T / R cells is provided by a printed circuit wiring board assembly located adjacent to the array of beam controlled tiles with solderless DC connections being provided by an arrangement of “fuzz button” electrical connector elements.
Owner:NORTHROP GRUMMAN SYST CORP
Input/output coupling structure for dielectric waveguide
ActiveUS20050099242A1Reduce leakageReduce lessOne-port networksResonatorsCouplingConductive materials
Disclosed is an input / output coupling structure for coupling a printed circuit board with a dielectric waveguide having a dielectric body and a conductive film covering the dielectric body. The coupling structure comprises a first conductive pattern formed on the bottom surface of the dielectric waveguide to serve as an input / output electrode, in such a manner as to be surrounded directly by an exposed portion of the dielectric body and further by the conductive film formed around the outer periphery of the exposed portion, a spacer having a surface made substantially entirely of a conductive material and a portion for defining a given space, and a second conductive pattern formed on a principal surface of the printed circuit board and electrically connected to the microstrip line. The bottom surface of the dielectric waveguide is joined to the principal surface of the printed circuit board through the spacer, to allow the first and second conductive patterns to be located in opposed relation to one another and define the space therebetween in cooperation with the spacer. The present invention can provide a simplified structure for mounting a dielectric waveguide on a printed circuit-wiring board to couple the dielectric waveguide with a microstrip line of the dielectric waveguide, and achieve a mode conversion mechanism operable in a wide frequency band and less subject to the influence of the possible displacement between the microstrip line and the dielectric waveguide.
Owner:MURATA MFG CO LTD
Silicon nanotaper couplers and mode-matching devices
ActiveUS7013067B2Improve efficiencyReduce horizontal sizeNanotechnologyCoupling light guidesOptical couplingFree space propagation
An arrangement for coupling between a free-space propagating optical signal and an ultrathin silicon waveguide formed in an upper silicon layer (SOI layer) of a silicon-an-insulator (SOI) structure includes a silicon nanotaper structure formed in the (SOI layer) and coupled to the ultrathin silicon waveguide. A dielectric waveguide coupling layer is disposed so as to overly a portion of a dielectric insulating layer in a region where an associated portion of the SOI layer has been removed. An end portion of the dielectric waveguide coupling layer is disposed to overlap an end section of the silicon nanotaper to form a mode conversion region between the free-space signal and the ultrathin silicon waveguide. A free-space optical coupling arrangement is disposed over the dielectric waveguide coupling layer and used to couple between free space and the dielectric waveguide coupling layer and thereafter into the ultrathin silicon waveguide.
Owner:CISCO TECH INC
Low profile active electronically scanned antenna (AESA) for Ka-band radar systems
InactiveUS6975267B2Space is requiredRadiating element housingsAntenna arrays manufactureTransceiverRadar systems
A vertically integrated Ka-band active electronically scanned antenna including, among other things, a transitioning RF waveguide relocator panel located behind a radiator faceplate and an array of beam control tiles respectively coupled to one of a plurality of transceiver modules via an RF manifold. Each of the beam control tiles includes a respective plurality of high power transmit / receive (T / R) cells as well as dielectric waveguides, RF stripline and coaxial transmission line elements. The waveguide relocator panel is preferably fabricated by a diffusion bonded copper laminate stack up with dielectric filling. The beam control tiles are preferably fabricated by the use of multiple layers of low temperature co-fired ceramic (LTCC) material laminated together. The waveguide relocator panel and the beam control tiles are designed to route RF signals to and from a respective transceiver module of four transceiver modules and a quadrature array of antenna radiators matched to free space formed in the faceplate. Planar type metal spring gaskets are provided between the interfacing layers so as to provide and ensure interconnection between mutually facing waveguide ports and to prevent RF leakage from around the perimeter of the waveguide ports. Cooling of the various components is achieved by a pair of planar forced air heat sink members which are located on either side of the array of beam control tiles. DC power and control of the T / R cells is provided by a printed circuit wiring board assembly located adjacent to the array of beam controlled tiles with solderless DC connections being provided by an arrangement of “fuzz button” electrical connector elements.
Owner:NORTHROP GRUMMAN SYST CORP
Dielectric waveguide resonator, dielectric waveguide filter, and method of adjusting the characteristics thereof
A conducting film is formed on a dielectric block in a dielectric waveguide resonator, and a through-hole is formed in the dielectric block. The unloaded Q is set by selecting the outside dimensions of the dielectric block. The resonance frequency is set by selecting the size and location of the through-hole as well as the outside dimensions of the dielectric block. A terminal electrode is formed on the outer surface of the dielectric block. A coupling hole is formed in the dielectric block and a coupling electrode is formed on the inner surface of the coupling hole. One end of the coupling electrode is connected to the terminal electrode and the other end of the coupling electrode is either connected to the conducting film formed on the outer surface of the dielectric block or terminated inside the dielectric block. The above structure allows an increase in the degree of freedom in the design of the characteristics including the resonance frequency and unloaded Q of the dielectric waveguide resonator. The invention also provides a dielectric waveguide filter with a simple coupling mechanism whereby it is possible to couple to an external circuit without having to use an additional member and without electromagnetic leakage.
Owner:MURATA MFG CO LTD
Microengineered optical scanner
InactiveUS20050167508A1Reducing pickReduce noiseCoupling light guidesSensing by electromagnetic radiationOptical scannersClosed loop
A microengineered optical scanner based on a moving cantilevered dielectric waveguide is described. The waveguide is excited into resonant mechanical motion by a drive located at its root. Stress sensors detect the bending of the waveguide, allowing closed loop control of the motion. A moving image of the light emitted from the moving tip of the waveguide is created by a lens. The moving image acts as a scan line. Light back-scattered from a rough surface placed at the image plane is collected back into the waveguide by confocal imaging. The light collected in the cladding of the waveguide has higher numerical aperture than the light collected in the core. The cladding light is detected by a mode-stripping detector. Techniques for combining a cantilevered waveguide, a drive, motion sensors and a mode-stripping detector using microelectromechanical systems (MEMS) technology are described.
Owner:MICROSAIC SYST
Four-band multi-polarization co-aperture feed source
ActiveCN102938497AImprove compactnessReduce volumeWaveguide hornsRadiating elements structural formsCircularly polarized antennaResonance
The invention relates to a four-band multi-polarization co-aperture feed source. The four-band multi-polarization co-aperture feed source is formed by combining a double linear polarization antenna of a Ku band and a double circular polarization antenna of a Ka band and comprises a conical horn, a Ku circular waveguide, a tuning screw, a Ku flange, a horizontal polarization power divider, a first flange, a vertical polarization power divider, a medium rod, a circular waveguide feed window, a stop screw, a transition section and a double circular polarization antenna. The antenna of the Ku band uses four ports for symmetrical feeding to improve the symmetrical characteristic of a directional diagram, a transmission waveguide of an electromagnetic field of the Ku band is used as the transition section of the electromagnetic field of the Ka band, and the resonance medium rod is embedded into the waveguide of the Ku band for transmitting electromagnetic waves of the Ka band so that compactness of the antenna is greatly improved. By means of dielectric waveguides and conical horn nesting technologies, the purposes of achieving antenna beam conformity and sharing one phase center are achieved, uniformities of directional diagrams and uniformities of the phase centers in four working bands are guaranteed, isolation among bands is increased, and the compactness of the antenna is improved.
Owner:BEIJING RES INST OF TELEMETRY +1
Plasma lamp with dielectric waveguide
InactiveUS20050248281A1Improve energy efficiencySmall sizeElectric lighting sourcesGas discharge lamp usagePlasma lampMicrowave electromagnetic radiation
A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one resonant mode when microwave energy of an appropriate frequency is coupled into the body. A bulb positioned in at least one lamp chamber in the body contains a gas-fill which when receiving energy from the resonating body forms a light-emitting plasma.
Owner:LUXIM CORP
Dielectric waveguide type filter and branching filter
A cutoff waveguide path is provided in a part of a dielectric waveguide comprising a pair of main conductive layers formed on an upper and a lower surfaces of a dielectric and groups of conductive vias arranged in the direction of signal transmission with a space of a distance less than ½ of a signal wavelength between the conductive vias, and provided in the cutoff waveguide path is a resonator having dielectric vias formed of a dielectric having a higher dielectric constant than that of a dielectric forming the dielectric waveguide. With this construction, a dielectric waveguide type filter easily designed and manufactured can be obtained.
Owner:KYOCERA CORP
Wave-guide coupling spr sensor chip and sensor chip array thereof
InactiveUS20110037981A1Efficiency tuningDetection is simple and fastSemiconductor/solid-state device manufacturingMaterial analysis by optical meansSensor arrayWaveguide
A sensor chip based on the WCSPR effect and an array thereof are disclosed. The sensor chip is a multilayer structure comprising a substrate, a dielectric waveguide layer (26) disposed on the substrate and a first metal layer (27) disposed on the dielectric waveguide layer (26), wherein parameters of physical properties of the dielectric waveguide layer (26) are tunable.
Owner:THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
Dielectric waveguide type filter and branching filter
InactiveUS6927653B2Simple designEasy to manufactureWaveguidesCoupling devicesElectrical conductorLength wave
A cutoff waveguide path is provided in a part of a dielectric waveguide comprising a pair of main conductive layers formed on an upper and a lower surfaces of a dielectric and groups of conductive vias arranged in the direction of signal transmission with a space of a distance less than ½ of a signal wavelength between the conductive vias, and provided in the cutoff waveguide path is a resonator having dielectric vias formed of a dielectric having a higher dielectric constant than that of a dielectric forming the dielectric waveguide. With this construction, a dielectric waveguide type filter easily designed and manufactured can be obtained.
Owner:KYOCERA CORP
Plasma processing equipment
InactiveUS20050082004A1Eliminating mode conversion lossLow costElectric discharge tubesSemiconductor/solid-state device manufacturingHeat resistanceEngineering
Plasma processing equipment capable of increasing the heat resistance of a wave guide by using a high dielectric material, comprising a processing container 44 formed to allow vacuuming, a loading table 46 installed in the processing container for placing a processed body W thereon, a microwave transmission plate 72 installed in an opening part at the ceiling of the processing container, a flat antenna member 76 for feeding microwave into the processing container through the microwave transmission plate, a shield cover body 80 earthed so as to cover the upper part of the flat antenna member, and a waveguide 90 for feeding the microwave from a microwave generating source to the flat antenna member, characterized in that the waveguide is formed of a high dielectric waveguide 94 using the high dielectric material, whereby the heat resistance of the waveguide can be increased.
Owner:TOKYO ELECTRON LTD
Dielectric waveguide filter
InactiveUS7170373B2Out-of-band suppression characteristic can be improvedReduce in quantityWaveguidesCoupling devicesElectromagnetic couplingElectromagnetic field coupling
Owner:NEC CORP
Dielectric waveguide
A dielectric waveguide which has a pair of dielectric substrates affixed to each other and a pair of electrically-conductive layers on the external surfaces of the two dielectric substrates. Each dielectric substrate has a projecting part that is thicker than other parts. A propagating region is formed where the projecting parts on the two opposing dielectric substrates are put together. Furthermore, a circuit is formed on the contact surface between the dielectric substrates. The circuit may include an electronic component. A part of the circuit is arranged in the propagating region so as to provide electromagnetic-field coupling between the circuit and the dielectric waveguide.
Owner:MURATA MFG CO LTD
Dielectric waveguide antenna
ActiveUS8692731B2Reduce reflectionWaveguide mouthsRadiating elements structural formsImpedance matchingDielectric waveguides
Disclosed herein is a dielectric waveguide antenna including: a dielectric waveguide transmitting a signal applied from a power feeder; a dielectric waveguide radiator radiating the signal transmitted from the dielectric waveguide to the air through a first aperture; and a matching unit formed in a portion of the dielectric waveguide and controlling a serial reactance and a parallel reactance to thereby perform impedance matching between the dielectric waveguide radiator and the air, in order to reduce reflection generated in the first aperture during the radiation of the signal through the first aperture. Reflection in the aperture is reduced through the matching unit having various structures, thereby making it possible to improve characteristics of the dielectric waveguide antenna.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD +1
Low Power, High Speed Multi-Channel Chip-to-Chip Interface using Dielectric Waveguide
ActiveUS20140184351A1Maximum power transfer efficiencyOptimize their impedanceMultiple-port networksWaveguidesFiberRadiation loss
An exemplary embodiment of the present invention provides an improved dielectric waveguide named electrical fiber. The electrical fiber with a metal cladding may isolate the interference of the signals in other wireless channels and adjacent electrical fibers, which typically causes band-limitation problem, for a smaller radiation loss and better signal guiding to lower the total transceiver power consumption as the transmit distance increases. Also, the electrical fiber may have frequency independent attenuation characteristics to enable high data rate transfer with little or even without any additional receiver-side compensation due to vertical coupling of the electrical fiber and an interconnection device.
Owner:POINT2 TECH
Iii-v photonic integrated circuits on silicon substrate
ActiveUS20160087160A1Laser detailsSemiconductor/solid-state device manufacturingSemiconductor materialsDevice material
A semiconductor device including a substrate structure including a semiconductor material layer that is present directly on a buried dielectric layer in a first portion of the substrate structure and an isolation dielectric material that is present directly on the buried dielectric layer in a second portion of the substrate structure. The semiconductor device further includes a III-V optoelectronic device that is present in direct contact with the isolation dielectric material in a first region of the second portion of the substrate structure. A dielectric wave guide is present in direct contact with the isolation dielectric material in a second region of the second portion of the substrate structure.
Owner:IBM CORP
Waveguide forming apparatus, dielectric waveguide forming apparatus, pin structure, and high frequency circuit
Owner:KYOCERA CORP
Dielectric waveguide of a laminated structure
InactiveUS6104264AStrength problemWell formedWaveguidesCoupling devicesMaterials scienceDielectric waveguides
A dielectric waveguide has a plurality of dielectric ceramic sheets each having a high-dielectric-constant portion and a low-dielectric-constant portion. The dielectric ceramic sheets are laminated and baked and electrode films are formed on the outer surfaces thereof. Thus, a dielectric waveguide is obtained in which the high-dielectric-constant portion serves as a propagating area and the low-dielectric-constant portion serves as a non-propagating area.
Owner:MURATA MFG CO LTD
Dielectric waveguide resonator, dielectric waveguide filter, and method of adjusting the characteristics thereof
A conducting film is formed on a dielectric block in a dielectric waveguide resonator, and a through-hole is formed in the dielectric block. The unloaded Q is set by selecting the outside dimensions of the dielectric block. The resonance frequency is set by selecting the size and location of the through-hole as well as the outside dimensions of the dielectric block. A terminal electrode is formed on the outer surface of the dielectric block. A coupling hole is formed in the dielectric block and a coupling electrode is formed on the inner surface of the coupling hole. One end of the coupling electrode is connected to the terminal electrode and the other end of the coupling electrode is either connected to the conducting film formed on the outer surface of the dielectric block or terminated inside the dielectric block. The above structure allows an increase in the degree of freedom in the design of the characteristics including the resonance frequency and unloaded Q of the dielectric waveguide resonator. The invention also provides a dielectric waveguide filter with a simple coupling mechanism whereby it is possible to couple to an external circuit without having to use an additional member and without electromagnetic leakage.
Owner:MURATA MFG CO LTD
Dielectric waveguide filter with structure and method for adjusting bandwidth
A structure and method for adjusting the bandwidth of a ceramic waveguide filter comprising, in one embodiment, a monoblock of dielectric ceramic material defining respective steps and respective input / output through-holes extending through the monoblock and the respective steps. In one embodiment, the steps are defined by notches in the monoblock and the input / output through-holes define openings terminating in the notch. The bandwidth of the ceramic waveguide filter may be adjusted by adjusting the height / thickness and direction of the steps relative to an exterior surface of the monoblock and / or the diameter of the input / output through-holes.
Owner:CTS CORP ELKHART
Dielectric waveguide antenna
ActiveUS20120206311A1Reduce reflectionWaveguide mouthsRadiating elements structural formsImpedance matchingDielectric waveguides
Disclosed herein is a dielectric waveguide antenna including: a dielectric waveguide transmitting a signal applied from a power feeder; a dielectric waveguide radiator radiating the signal transmitted from the dielectric waveguide to the air through a first aperture; and a matching unit formed in a portion of the dielectric waveguide and controlling a serial reactance and a parallel reactance to thereby perform impedance matching between the dielectric waveguide radiator and the air, in order to reduce reflection generated in the first aperture during the radiation of the signal through the first aperture. Reflection in the aperture is reduced through the matching unit having various structures, thereby making it possible to improve characteristics of the dielectric waveguide antenna.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD +1
Transmission line transition
ActiveUS20070182505A1Efficient couplingAssembly precisionMultiple-port networksOne-port networksDielectric substrateDielectric waveguides
Owner:DENSO CORP +1
Input/Output Coupling Structure for Dielectric Waveguide
Dielectric waveguide comprising a circular input / output electrode on its bottom surface and surrounded by an exposed dielectric portion thereof around which a conductor film is disposed. A short stub crosses through the exposed dielectric portion to couple the electrode and film together. The printed circuit board has a front surface formed with a generally-circular island-shaped electrode surrounded by a front surface-side ground pattern in a spaced-apart relation thereto, and a back surface formed with a strip line surrounded by a back surface-side ground pattern in spaced-apart relation thereto. An approximate center of the island-shaped electrode and one end of the strip line are coupled together, and the front surface-side ground pattern and the back surface-side pattern are coupled together. The input / output electrode of the dielectric waveguide and the island-shaped electrode of the printed circuit board are coupled together.
Owner:MURATA MFG CO LTD
Dielectric waveguide
ActiveUS20170170539A1Screening metallic containersWaveguidesDielectric waveguidesElectrically conductive
A dielectric waveguide for propagating electromagnetic signals includes a cladding and an electrically conductive shield. The cladding has a body composed of a first dielectric material. The body defines a core region therethrough that is filled with a second dielectric material different than the first dielectric material. The cladding further includes at least two ribs extending from an outer surface of the body to distal ends. The shield engages the distal ends of the ribs and peripherally surrounds the cladding such that air gaps are defined radially between the outer surface of the body and an interior surface of the shield.
Owner:TYCO ELECTRONICS (SHANGHAI) CO LTD +1
Compound semiconductor photonic integrated circuit with dielectric waveguide
ActiveUS9880352B2Variation of refractive index with temperatureReduce impactOptical multiplexElectromagnetic transmissionPhotonic integrated circuitEpitaxy
A photonic integrated circuit (PIC) is grown by epitaxy on a substrate. The PIC includes at least one active element, at least one passive element, and a dielectric waveguide. The at least one active and passive elements are formed over the substrate and are in optical contact with each other. The dielectric waveguide is formed over the substrate, and is in optical contact with the at least one active and passive elements. The at least one active and passive elements each are formed using a III-V compound semiconductor material.
Owner:POET TECH
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