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1999results about "Waveguide horns" patented technology
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System and apparatus for transmitting a surface wave over a single conductor
ActiveUS20080211727A1Reduce radiationSmall sizeWaveguide hornsMultiple-port networksElectric power transmissionElectrical conductor
A low attenuation surface wave transmission line system for launching surface waves on a bare and unconditioned conductor, such as are found in abundance in the power transmission lines of the existing power grids. The conductors within the power grid typically lack dielectric and special conditioning. Accordingly, the present invention includes a first launcher, preferably including a mode converter and an adapter, for receiving an incident wave of electromagnetic energy and propagating a surface wave longitudinally on the power lines. The system includes at least one other launcher, and more likely a number of other launchers, spaced apart from one another along the constellation of transmission lines. The system and associated electric fields along any given conductor are radially and longitudinally symmetrical.
Owner:CORRIDOR SYST INC
System and method for dual-band antenna matching
A dual-band antenna matching system and a method for dual-band impedance matching are provided. The method comprises: accepting a frequency-dependent impedance from an antenna; and, selectively supplying a conjugate impedance match for the antenna at either a first and a second communication band, or a third and a fourth communication band. More specifically, the method comprises: tuning a first tuning circuit to a first frequency; and, simultaneously tuning a second tuning circuit to a second frequency. In response, a conjugate match is supplied to the antenna in the first communication band in response to the first frequency. Simultaneously, the antenna is matched in the second communication band in response to the second frequency. When the first tuning circuit is tuned to a third frequency, and the second tuning circuit is tuned to a fourth frequency, then conjugate matches are supplied for the third and fourth communication bands, responsive to the third and fourth frequencies, respectively.
Owner:KYOCERA CORP
Dual-window high-power conical horn antenna
A high power TM01 mode radio frequency antenna. The inventive antenna comprises a conical horn for receiving an electromagnetic input signal and radiating an output signal in response thereto. An inner window is disposed within the conical horn. An outer window is mounted at an output aperture of the conical horn in alignment with the inner window. The antenna has a gradual taper from a waveguide input to the aperture over a cone angle of 45 degrees. The outer window is mounted at the aperture in concentric alignment with the inner window. For an optimal compact design, the inner and outer windows are of polycarbonate construction.
Owner:RAYTHEON CO
Hybrid-mode horn antenna with selective gain
ActiveUS6992639B1Designing can be facilitatedMechanically simpleWaveguide hornsHorn antennaMixed mode
The present invention provides a new class of hybrid-mode horn antennas. The present invention facilitates the design of boundary conditions between soft and hard, supporting modes under balanced hybrid condition with uniform as well as tapered aperture distribution. In one embodiment, the horn antenna (100) is relatively simple mechanically, has a reasonably large bandwidth, supports linear as well as circular polarization, and is designed for a wide range of aperture sizes.
Owner:LOCKHEED MARTIN CORP
Multi-Band antenna System for Satellite Communications
ActiveUS20110068988A1Superior compact sizeImprove mobilityWaveguide hornsSimultaneous aerial operationsPhysicsFrequency band
The present invention provides an improved antenna system on moving platform that is in communication with multiple satellites for simultaneous reception of RF energy at multiple frequencies. The antenna is implemented as a multi-beam, multi-band antenna having a main reflector with multiple feed horns and a sub-reflector to reflect Ku and Ka frequency band signals directed by a focal region of the main reflector.
Owner:KVH IND INC
Lens antenna with electronic beam steering capabilities
InactiveUS20150116154A1Improve directivityImprove radiation efficiencyWaveguide hornsAntenna gainRadio relay
The invention discloses a lens antenna with high directivity intended for use in radio-relay communication systems, said antenna providing the capability of electronic steering of the main radiation pattern beam by switching between horn antenna elements placed on a plane focal surface of the lens. Electronic beam steering allows antenna to automatically adjust the beam direction during initial alignment of transmitting and receiving antennas and in case of small antenna orientation changes observed due to the influence of different reasons (wind, vibrations, compression and / or extension of portions of the supporting structures with the temperature changes, etc.). The technical result of the invention is the increase of the antenna directivity with simultaneously provided capability of scanning the beam in a continuous angle range and also the increase of the antenna radiation efficiency and, consequently, the increase of the lens antenna gain. This result is achieved by the implementation of horn antenna elements with optimized geometry.
Owner:OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOSTYU RADIO GIGABIT
Metallised plastic antenna funnel for a fill level radar
A metalized plastic antenna includes a plastic antenna body with metallization on the inside. In this arrangement metallization is used for conducting electromagnetic waves. Furthermore, metallization may be implemented as a protective coating so that chemical resistance of the plastic antenna may be ensured even in the case of corrosive environmental conditions.
Owner:VEGA GRIESHABER GMBH & CO
Microwave receiver front-end assembly and array
InactiveUS7835600B1Not to damageEliminate needWaveguide hornsElectrical measurementsLight waveElectricity
A method of and apparatus for modulating an optical carrier by an incident electromagnetic field. The electromagnetic field propagates in a dielectric-filled transverse electromagnetic waveguide, At least one slice of an electro-optic material is disposed in the dielectric-filled transverse electromagnetic waveguide, the electro-optic material in the dielectric-filled transverse electromagnetic waveguide having at least one optical waveguide therein which has at least a major portion thereof guiding light in a direction orthogonal with respect to a direction in which the dielectric-filled transverse electromagnetic waveguide guides the incident electromagnetic field. Light is caused to propagate in the at least one optical waveguide in the at least one slice of an electro-optic material in the dielectric-filled transverse electromagnetic waveguide for modulation by the incident electromagnetic field.
Owner:HRL LAB
Multiple phase center feedhorn for reflector antenna
Owner:HER MAJESTY THE QUEEN AS REPRESENTED BY THE MINIST OF NAT DEFENCE OF HER MAJESTYS CANADIAN GOVERNMENT
Coaxial horn antenna system
An antenna feed system includes a plurality of RF horn antennas (201, 202) for operating on a plurality of RF frequency bands. A first one of the feed horns (202) can have a boresight axis and is configured for operating at a first one of the frequency bands. A second one of the feed horns (201) is positioned coaxially within the first one of the feed horns (202) and is configured for operating at least at a second one of the frequency bands. Further, the first one of the feed horns (202) is a corrugated horn that has a plurality of corrugations (204) formed on an interior surface defining a profile. The profile extends substantially from a throat (205) of the first feed horn and along a tapered portion of the first feed horn. The profile substantially minimizes an interaction of the corrugations with the second feed horn.
Owner:NORTH SOUTH HLDG
Multi-band horn antenna using frequency selective surfaces
InactiveUS6985118B2Grating lobe of the antenna is reducedImprove permeabilityWaveguide hornsSimultaneous aerial operationsMulti bandHorn antenna
A waveguide (100) including at least one outer surface (105, 110, 115, 120) defining a waveguide cavity (140) and at least one inner surface (130, 135) positioned within the waveguide cavity (140). The inner surface (130, 135) includes a frequency selective surface (FSS) having a plurality of FSS elements (145) coupled to at least one substrate. The substrate defines a first propagation medium such that an RF signal having a first wavelength in the first propagation medium can pass through the FSS (130, 135). The FSS (130, 135) is coupled to a second propagation medium such that in the second propagation medium the RF signal has a second wavelength which is at least twice as long as a physical distance between centers of adjacent FSS elements (145). The second wavelength can be different than the first wavelength.
Owner:NORTH SOUTH HLDG
FSS feeding network for a multi-band compact horn
A feed structure (105) for a horn antenna (100). The feed structure can include a first waveguide (110) and a second waveguide (115) having a first portion at least partially disposed within the first waveguide. The second waveguide also can include a second portion intersecting a first wall (240) of the first waveguide. The first wall can include a first frequency selective surface (244) at an intersection (280) of the first wall and the second portion of the second waveguide. The first waveguide can be operatively coupled to a first horn section (130) and the second portion can be operatively coupled to a second horn section (135).
Owner:NORTH SOUTH HLDG
Small wave-guide radiators for closely spaced feeds on multi-beam antennas
Owner:PRO BRAND INT
Dual band radio frequency (RF) & optical communications antenna and terminal design methodology and implementation
ActiveUS20120002973A1Increase system capacityLink robustnessWaveguide hornsAntenna arraysAntenna designTransceiver
A dual-band antenna is provided that combines two normally disparate communications modes into a single compact aperture minimizing overall mass and volume, while maintaining high performance efficiency and reciprocity of each individual mode. The antenna is compatible with both optical (near-IR / visible) and RF (microwave / millimeter-wave) transceiver subsystems for high bandwidth communications, applicable primarily to long- to extremely long-range (space-to-ground) link distances. The optical link provides high bandwidth while the RF provides a lower data-rate weather backup, accommodation for traditional navigation techniques, and assistance in cueing the extremely tight optical beam by matching the RF beamwidth to an optical fine-steering mechanism field-of-regard. The configuration is built around a near-diffraction-limited high performance primary mirror shared by both a direct-fed RF antenna design and a Cassegrain optical telescope. Material properties are exploited to combine the optical secondary mirror with the RF feed structure, providing a collimated optical beam interface at the antenna vertex.
Owner:THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE
Dielectric antenna and fill level sensor using the radar principle
InactiveUS8881588B2Shorten the lengthReduce antenna sizeWaveguide hornsWaveguide mouthsDielectricRadar
Owner:KROHNE MESSTECHNICK GMBH & CO KG
Horn antenna device and step-shaped signal feed-in apparatus thereof
ActiveUS20150029065A1Sure easyAssembly precisionWaveguide hornsAntennas earthing switches associationSignal-to-noise ratio (imaging)Noise rate
The present invention relates to a horn antenna device. The horn antenna device has a step-shaped signal feed-in apparatus and a conical horn antenna. The step-shaped signal feed-in apparatus has a stepped body having multiple stairs and a connecting pin. The stepped body is adapted to radiate electromagnetic waves and receive a reflection of the electromagnetic waves. According to the structure of the step-shaped signal feed-in apparatus of the invention, the resonating modes are easy to be determined. The directivity and the signal-to-noise rate are improved. In addition, the connecting pin is directly connected to the stairs for improving the signal stability of the horn antenna device.
Owner:FINETEK CO LTD
Horn antenna
InactiveUS6859187B2Efficient separationImprove performanceWaveguide hornsAntenna supports/mountingsRadarEngineering
Owner:ROSEMOUNT TANK RADAR
Substrate embedded horn antenna having selection capability of vertical and horizontal radiation pattern
Substrate embedded horn antenna includes a dielectric, metal patterns, metal vias and a ground plate. The metal patterns are embedded by being stacked in dielectric. Metal patterns are hollow rectangle types or hollow circle types. Metal vias connect layers of metal patterns by being embedded between layers of metal patterns. Ground plate is formed in an upper side of dielectric. Metal patterns form waveguide structure by being stacked in radial shape. Waveguide structure propagates electromagnetic wave by focusing electromagnetic wave. Embedded horn antenna capable of selectively using vertical radiation and horizontal radiation may be implemented using the via and metal pattern in dielectric substrate. Embedded horn antenna may be implemented in small size with high gain. Vertical embedded horn antenna and horizontal embedded horn antenna may be implemented in a substrate. Method of manufacturing embedded horn antenna capable of selectively using vertical radiation and horizontal radiation may be provided.
Owner:KOREA ADVANCED INST OF SCI & TECH
Antenna assembly
Antenna assemblies are described herein. Any of these assemblies may include a primary feed that includes a single patterned emitting surface from which multiple different beams of RF signals are emitted corresponding to different antenna input feeds each communicating with the patterned antenna emitting surface. The antenna assembly may include a primary reflector, a secondary reflector, and a primary feed that is feed by multiple antenna input feeds so that different regions of the primary and secondary antenna correlate with different beams emitted by the primary feed. The antenna assembly is capable of emitting beams in the same direction having different polarizations using a single primary feed. Also described herein are methods of operating an antenna assembly. Access point devices that have a single primary feed configured to emit multiple beams are also described.
Owner:UBIQUITI INC
Fan-beam antenna
InactiveUS7075496B2Simple compositionSmall reflectionWaveguide hornsRadiating element housingsDielectric plateLight beam
An object of the invention is to provide a fan-beam antenna which comprises a flare which is long in a horizontal direction thereof and whose cross section is horn-shaped, and a water-proof box housing components of said antenna, in which a vertical beam width is made narrow without spreading a vertical size to increase gain. Accordingly, this invention is characterized in that a radome radiation surface is constituted of a plurality of dielectric plates equivalently, and at least one of the dielectric plates is made a dielectric lens having a characteristic similar to a convex lens.
Owner:TAIYO MUSEN
On-board radar apparatus
InactiveUS20140285373A1Increase costIncrease in sizeWaveguide hornsIndividually energised antenna arraysObject basedRadar
An on-board radar apparatus includes an antenna unit configured by combining one of a lens and a reflector, and a plurality of antenna elements, a transmission and reception unit configured to emit a radio wave using, for at least one of transmission or reception, a partial antenna of a plurality of patterns configured by the antenna elements that are part of the plurality of antenna elements, and to receive a reflection wave obtained by reflection of the radio wave from an object, and a detection unit configured to detect the object based on the reflection wave received by the transmission and reception unit.
Owner:NAT UNIV CORP SHIZUOKA UNIV +1
Low sidelobe reflector antenna with shield
ActiveUS9019164B2Area minimizationIncrease in sizeWaveguide hornsRadiating element housingsWaveguidePhysics
A front feed reflector antenna with a dish reflector has a wave guide is coupled to a proximal end of the dish reflector, projecting into the dish reflector along a longitudinal axis. A dielectric block may be coupled to a distal end of the waveguide and a sub-reflector coupled to a distal end of the dielectric block. A shield is coupled to the periphery of the dish reflector. A subtended angle between the longitudinal axis and a line between the focal point and a distal periphery of the shield is 50 degrees or less.
Owner:COMMSCOPE TECH LLC
Apparatus for establishing signal coupling between a signal line and an antenna structure
InactiveUS6512488B2Effective radiationWaveguide hornsShort antennas for non-sinusoidal wavesCouplingSignal source
An apparatus for coupling a signal supply with an antenna including first and second elements. The signal supply delivers a signal to the antenna at a connection locus. The first element has a first edge and the second element has a second edge; the connection locus includes part of the first and second edges. The apparatus includes a first and second feed structure. The first feed structure extends a feed distance from the signal supply to the second edge and divides the first element into two lands in spaced relation with the first feed structure to establish a separation distance intermediate the first feed structure and the two lands. The second feed structure couples the signal supply with the first proximal edge. The separation distance establishes a signal transmission structure between the two lands and the first feed structure.
Owner:HUMATICS CORP
System and method for impedance matching an antenna to sub-bands in a communication band
InactiveUS7176845B2Improve efficiencyReduce noiseMultiple-port networksAntenna supports/mountingsAntenna impedanceMethod selection
A sub-band antenna matching method and an antenna matching system for selectively matching a communication bandwidth segment impedance have been provided. The method comprises: accepting a frequency-dependent impedance from an antenna; and, selectively supplying a conjugate impedance match for the antenna at a sub-band of a first communication band. In some aspects, the method selectively supplies a conjugate impedance match for the antenna at a sub-band of a second communication band. More specifically, the method comprises: tuning a first tuning circuit to a first frequency; simultaneously tuning a second tuning circuit to a second frequency to match the antenna at a low end of the first communication band. Likewise, the first tuning circuit is tuned to a third frequency and the second tuning circuit is tuned to a fourth frequency to match the antenna at a high end of the first communication band in response to the third and fourth frequencies.
Owner:KYOCERA CORP
Agile Diverse Polarization Multi-Frequency Band Antenna Feed With Rotatable Integrated Distributed Transceivers
ActiveUS20140057576A1Agile polarization diversityImprove antenna efficiencyWaveguide hornsSimultaneous aerial operationsTransceiverAxial ratio
A compact, agile polarization diversity, multiple frequency band antenna with integrated electronics for terrestrial terminal use in satellite communications systems is disclosed. The antenna includes an antenna feed having highly integrated microwave electronics that are mechanically and electromagnetically coupled thereto in a distributed arrangement so that diverse polarization senses having a low axial ratio and electronic switching control of the polarization senses is provided. The arrangement of the integrated distributed transceiver configuration enables the mechanical rotation of the orientation of a first transceiver for skew alignment while a second transceiver remains stationary relative to the antenna feed assembly. The first transceiver can be a high-band transmitter and receiver pair that supports linear polarization senses and the second transceiver can be a low-band transmitter and receiver pair that supports circular polarization senses. The antenna system presented is highly compact and offers improved polarization performance previously achievable by only larger devices.
Owner:KVH IND INC
Dielectric antenna
ActiveUS8354970B2Highly bundlingSignificant variabilityWaveguide hornsAntenna detailsElectromagnetic radiationDielectric tube
Described and shown is a dielectric antenna (1) having a dielectric feeding section (2), a first transition section (3) comprising a dielectric rod, a dielectric emitting section (5) and, a further, second transition section (4) forming a dielectric horn, wherein the feeding section (2) can be struck with electromagnetic radiation (6), electromagnetic radiation (6) can be guided with the first transition section (3) and the second transition section (4) and the electromagnetic radiation can be emitted from the emitting section (5) as airborne waves.The object of the present invention is to provide a dielectric antenna, which is adaptable as low-loss as possible to different mounting situations, which additionally is as low-reflection as possible and, at the same time is highly bundling.The object of the above-mentioned dielectric antenna is met in that the emitting section (5) is designed as dielectric tube connecting to the second transition section (4).
Owner:KROHNE MESSTECHNICK GMBH & CO KG
Tunable power amplifier matching circuit
InactiveUS6859104B2Reduce cost and size and power consumptionMultiple-port networksHigh frequency amplifiersAudio power amplifierControl signal
A power amplifier matching circuit is provided. The matching circuit includes a ferro-electric tunable component. A control signal is applied to the tunable component, changing the component's impedance. This changes the impedance of the matching circuit.
Owner:KYOCERA CORP
Full-duplex antenna system and method
A system and method is provided for full-duplex antenna impedance matching. The method comprises: effectively resonating a first antenna at a frequency selectable first channel in a first frequency band; generating a first antenna impedance at the first channel frequency; effectively resonating a second antenna at a frequency selectable second channel in the first frequency band; generating a second antenna impedance at the second channel frequency; supplying a first conjugate impedance match at the first channel frequency; and, supplying a second conjugate impedance match at the second channel frequency. For example, the first antenna may be used for transmission, while the second antenna is used for received communications. The antennas effectively resonant in response to: supplying frequency selectable conjugate impedance matches to the antennas; generating frequency selectable antenna impedances; and / or selecting the frequency of antenna resonance.
Owner:KYOCERA CORP
High radiation efficient dual band feed horn
InactiveUS6967627B2MiniaturizationEasy to operateWaveguide hornsSimultaneous aerial operationsDouble frequencyHigh radiation
A multiple mode feed horn is provided for transmitting and receiving signals. The feed horn includes a transverse electric throat section, a transverse electric profile section, and a transverse electric aperture section. The transverse electric profile section propagates a first transverse electric (TE) mode. The transverse electric aperture section propagates a second TE mode. The multiple mode feed horn prevents propagation of traverse magnetic modes from said throat section to said aperture section.
Owner:KEENE BUILDING PRODS CORP
Antenna
InactiveUS20150349415A1Excellent side-lobe suppression characteristicWaveguide hornsParticular array feeding systemsCouplingAntenna element
An antenna includes an antenna layer, a coupling layer, and a feeder circuit layer. The antenna layer includes antennas elements. First and second antennas elements are arranged in such a manner that the centers thereof are aligned in a first direction. A third antenna element is arranged in such a manner that the third antenna element is separated from the first antenna element in a second direction and centers of the antennas elements are not aligned in the second direction. A waveguide is formed in the coupling layer.
Owner:NEC CORP
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