With Polarization Filter Or Converter Patents (Class 343/756)
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Patent number: 11923924Abstract: A microcomponent massive MIMO array is presented. The microcomponent massive array includes a general purpose processor and an integrated power amplifier and transmitter device including a software defined radio (SDR) and a plurality of polar power amplifiers (PAs) disposed on a single integrated circuit, wherein the integrated power amplifier and transmitter device is in communication with the general purpose processor. The microcomponent massive MIMO array further includes an antenna array in communication with the integrated power amplifier and transmitter device.Type: GrantFiled: May 4, 2020Date of Patent: March 5, 2024Assignee: Parallel Wireless, Inc.Inventor: Steven Paul Papa
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Patent number: 11862853Abstract: The invention provides for a broad band directional antenna (10) comprising a ground plane (12) having an axis (14) extending perpendicularly to the ground plane, an active radiator (13) which is axially spaced from the ground plane, a metamaterial ground plane assembly (16) and a conductive pillar (28.1) between the first conductive wall and the ground plane. The metamaterial ground plane assembly comprises a metamaterial ground plane (17), a first conductive wall (20) adjacent a periphery of the metamaterial ground plane, the first conductive wall having a bottom (22) and atop (24) and a second wall (26) comprising two mutually insulated conductive wall parts (26.1, 26.2) located spaced from and outside of the first conductive wall. The bottom of the first conductive wall is located between the ground plane and the metamaterial ground plane and the top of the first conductive wall is located beyond the active radiator.Type: GrantFiled: August 18, 2020Date of Patent: January 2, 2024Assignee: POYNTING ANTENNAS (PTY) LIMITEDInventors: Andries Petrus Cronje Fourie, Derek Colin Nitch
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Patent number: 11855347Abstract: An antenna having a wedge plate-based waveguide with feed segmentation and a method for using the same are disclosed. In one embodiment, the antenna comprises an aperture having an array of radio-frequency (RF) radiating antenna elements and a segmented wedge plate radial waveguide comprises a plurality of wedge plates that form a plurality of sub-apertures, wherein each sub-aperture includes one wedge plate and a distinct subset of RF radiating antenna elements in the array, wherein each wedge plate of the plurality of wedge plates has a feed point to provide a feed wave for propagation through said each wedge plate for interaction with its distinct subset of RF radiating antenna elements in the array.Type: GrantFiled: December 16, 2020Date of Patent: December 26, 2023Assignee: KYMETA CORPORATIONInventors: Chris Eylander, Bradley Eylander, Mohsen Sazegar
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Patent number: 11848488Abstract: An antenna element according to an exemplary embodiment includes a dielectric layer; and an antenna pattern formed in a mesh structure on the dielectric layer and including an irregularly-shaped edge. The antenna element according to the example is excellent in terms of the pattern visibility, while maintaining the antenna performance.Type: GrantFiled: March 21, 2022Date of Patent: December 19, 2023Assignee: DONGWOO FINE-CHEM CO., LTD.Inventors: Yun Seok Oh, Young Ju Kim, Hee Jun Park, Won Hee Lee, Jae Hyun Lee
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Patent number: 11831073Abstract: An electromagnetic energy absorber comprising a thin electrically-conductive ground plane as a base. Dielectric layers are positioned over the ground plane and high impedance surface (HIS) as a top layer. The impedance layer can be formed by loading the lumped resistor to a metallic grating like an FSS (Frequency Selective Surface). An air-spacer between the substrates has replaced the problem of the large electrical thickness of the substrate with effective permittivity. Metamaterial structures enable control over the resonant frequencies, and performance is enhanced over a broad frequency band. In addition, two broadband reflective-type linear to orthogonal polarization converters are disclosed that provide improved bandwidth and angular stability performance.Type: GrantFiled: May 6, 2021Date of Patent: November 28, 2023Assignee: Synergy Microwave CorporationInventors: Shiban K. Koul, Ajay Kumar Poddar, Sukomal Dey, Ulrich L. Rohde
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Patent number: 11828781Abstract: This application provides a transmission absorbing structure and an antenna in-band characteristics test system, relating to design of microwave antennas for radar and communication systems. The transmission absorbing structure includes a coupling feed structure provided with coupling slots for energy coupling with a to-be-tested antenna, two equivalent electric wall structures parallel to each other, and two equivalent magnetic wall structures parallel to each other. The two equivalent electric wall structures and the two equivalent magnetic wall structures together enclose the coupling feed structure, and form a transverse electromagnetic mode (TEM) waveguide. The system includes a vector network analyzer, a to-be-tested antenna electrically connected to the vector network analyzer, and a transmission absorbing structure.Type: GrantFiled: June 8, 2023Date of Patent: November 28, 2023Assignee: 38TH RESEARCH INSTITUTE, CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATIONInventors: Xiaopeng Lu, Yan Li, Lei Sheng, Zicheng Zhou, Yufan Yao, Jialong Zhang
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Patent number: 11804658Abstract: An apparatus and method for mitigating polarization mismatch in reflector antenna systems. A feed unit is configured to determine a polarization mismatch between a first polarization associated with a first wave and a second polarization associated with a reflector unit. The feed unit pre-distorts the first wave to achieve a compensated polarization for reducing and/or eliminating a polarization mismatch. The pre-distorted first wave having the compensated polarization is used to illuminate the reflector unit. A re-radiated wave is reflected by the reflector unit. Furthermore, the level of the re-radiated wave is increased as a result of the pre-distortion.Type: GrantFiled: November 9, 2018Date of Patent: October 31, 2023Assignee: Hughes Network Systems, LLCInventors: Bingqian Lu, Hamad Alsawaha, Peter Hou, Thomas Jackson
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Patent number: 11764865Abstract: A satellite communication device and a method therefor are disclosed. The satellite communication device includes a first processor that generates schedule data about a satellite communication asset, a second processor that is located on a mobile vehicle spaced apart from the first processor and generates a control signal based on the schedule data, and a mediator that dynamically switches a link between at least one antenna and at least one modem based on the control signal.Type: GrantFiled: July 1, 2021Date of Patent: September 19, 2023Assignee: Intellian Technologies, Inc.Inventors: Sang Young Hong, Chan Kim
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Patent number: 11757194Abstract: An electronic device includes a display panel on which a display area and a peripheral area around the display area are defined, a patch part disposed on the display panel and including a first side and a second side, a first transmission part disposed on the display panel, facing the first side of the patch part, spaced apart from the patch part, and coupled with the patch part, and a second transmission part disposed on the display panel, facing the second side of the patch part, spaced a plurality of openings part from the patch part, and coupled with the patch part.Type: GrantFiled: October 8, 2021Date of Patent: September 12, 2023Assignee: Samsung Display Co., Ltd.Inventors: Gangil Byun, Jae-Kyoung Kim, Kiseo Kim, Eunjin Sung, Jinmyeong Heo
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Patent number: 11742822Abstract: An antenna structure and an antenna array are disclosed. The antenna structure includes first and second feeding traces, first to fourth vias and a radiator. The first feeding trace has a first meander portion that generates a 180-degree phase change along a length thereof at an operation frequency of the antenna structure. The second feeding trace has a second meander portion that generates a 180-degree phase change along a length thereof at the operation frequency of the antenna structure. The first and second vias are respectively coupled to two opposite points of the first feeding trace with respect to the first meander portion. The third and fourth vias are respectively coupled to two opposite points of the second feeding trace with respect to the second meander portion. The radiator coupled to the first to fourth vias. The antenna array includes antenna cells each with the antenna structure.Type: GrantFiled: September 1, 2021Date of Patent: August 29, 2023Assignee: ACHERNARTEK INC.Inventor: Colan Ryan
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Patent number: 11742591Abstract: A front end of a radar system is provided with a first front end apparatus and a second front end apparatus. A first transmit planar component and a first receive planar component in the first front end apparatus are arranged to be perpendicular to one another. A second transmit planar component and a second receive planar component in the second front end apparatus are arranged to be perpendicular to one another. A linear array of antennas is located along a second end of each planar component. Polarization of a first set of waves transmitted from the linear array of antennas of the first transmit planar component and polarization of a second set of waves transmitted from the linear array of antennas of the second transmit planar component are perpendicular to one another.Type: GrantFiled: October 30, 2020Date of Patent: August 29, 2023Assignee: General Radar CorporationInventors: Jon Williams, Dmitry Turbiner, Brian Williams, Christian Kurzke, David Powell, Ilia Lebedev, Sergey Klypin, Barnabas Fung, Devin Matthews
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Patent number: 11728572Abstract: A twistarray reflector includes: a reflector having front reflecting surface comprising wires and a back reflecting surface, the front reflecting surface fabricated from the wires and composites where the wires are placed having an orientation at each point on the front surface to decompose an incident field into orthogonal components so that an electromagnetic reflected from the front surface when superposed with a phase-inverted electromagnetic field reflected from the back reflecting surface produces a net reflected electromagnetic field that is polarized in a specific vector direction with consistent phase.Type: GrantFiled: December 10, 2020Date of Patent: August 15, 2023Assignee: Raytheon CompanyInventor: Earl M. Dressel
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Patent number: 11728553Abstract: A feed network is provided that includes a transmit section, a body section coupled to the transmit section, and a receive section coupled to the body section. The transmit section and the body section form a transmitter unit coupled to a first section of a core waveguide, wherein the first section of the core waveguide is a square waveguide. The body section and the receive section form a receiver unit coupled to a second section of the core waveguide, wherein the second section of the core waveguide is a circular waveguide.Type: GrantFiled: October 19, 2021Date of Patent: August 15, 2023Assignee: LOCKHEED MARTIN CORPORATIONInventor: Jason Stewart Wrigley
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Patent number: 11693166Abstract: A septumless polarizer is an OMT polarizer which is formed without a traditional thin septum which bridges the gap from the first assembly half to the second assembly half when the polarizer is split in the zero-current region of the rectangular waveguides (RHCP and LHCP ports). The septumless polarizer utilizes a dual-axis-stepped feature, which is included in one half of the polarizer only, creates the illusion of a traditional thin septum and actually improves performance. A close-proximity fastener scheme is enabled along with a fully encompassing pressure lip and contact pressure risks are mitigated.Type: GrantFiled: August 10, 2020Date of Patent: July 4, 2023Assignee: LOCKHEED MARTIN CORPORATIONInventor: Jason Stewart Wrigley
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Patent number: 11688933Abstract: A vehicular antenna device comprises: a directional antenna having a plurality of unit antenna elements arranged in a predetermined direction and thereby having upward directionality; and a radio wave diffusion structure installed vertically above the directional antenna so as to reflect radiated radio waves, which are radiated upward from the directional antenna, in the lateral direction such that the same are diffused omnidirectionally. The vehicular antenna device is applicable to 5G mobile communication, the same has omnidirectionality that a vehicular antenna is required to have, and the antenna structure can be made compact and simple.Type: GrantFiled: April 26, 2018Date of Patent: June 27, 2023Assignee: LS MTRON LTD.Inventor: Seung-Ho Choi
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Patent number: 11689298Abstract: A method for aligning an antenna device to a peer antenna device is disclosed. The method includes receiving, by an alignment management computing device, first geolocation data and a first orientation data for the antenna device. A second set of geolocation data for the peer antenna device is received. A static vector is determined for aligning the antenna device to the peer antenna device based on the first geolocation data, the first orientation data, and the second geolocation data. A first set of instructions is provided for adjusting the position of the antenna device based on the static vector to align the antenna device to the peer antenna device. An articulated antenna device configured to operate in accordance with the method is also disclosed. An antenna alignment management computing device and a non-transitory computer readable medium for performing the alignment method are also disclosed.Type: GrantFiled: September 30, 2022Date of Patent: June 27, 2023Assignee: Vubiq Networks, Inc.Inventors: Michael Gregory Pettus, Gabriel Corbett, Andrew Pettus
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Patent number: 11653848Abstract: A patient monitoring device includes a signal transmission device configured to direct a signal transmission toward a target area and to receive reflected signals from the target area, and a signal analysis device having a processing device and at least one non-transitory computer readable data storage device storing instructions, that when executed by the processing device, cause the patient monitoring device to transmit signals, receive reflected signals, and determine a non-contact vital sign measurement based on data from the reflected signals.Type: GrantFiled: January 21, 2020Date of Patent: May 23, 2023Assignee: Welch Allyn, Inc.Inventors: John A. Lane, Steven D. Baker, Lei Guo, Raymond A. Lia, Robert L. Vivenzio, Ervin Goldfain, Brian T. Moons, Zhengguo Sun
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Patent number: 11626667Abstract: Aspects of the subject disclosure may include, for example, a polarization shifter including a lower substrate having disposed thereon first and second transmission lines for coupling to a feed network, an upper substrate having disposed thereon third and fourth transmission lines for respective communicative coupling to orthogonally-polarized elements of a radiating element, and a dielectric layer residing between the lower substrate and the upper substrate, the upper substrate being configured to mechanically couple to the radiating element, the dielectric layer coupling the first transmission line with the third transmission line and coupling the second transmission line with the fourth transmission line, the upper substrate being rotatable relative to the lower substrate to effect polarization adjusting for the radiating element to facilitate avoidance of interference or passive intermodulation (PIM). Other embodiments are disclosed.Type: GrantFiled: July 7, 2022Date of Patent: April 11, 2023Assignee: ISCO International, LLCInventors: Amr Abdelmonem, Anthony Teillet, Richard Loy Smith, Jr., David E. Urbasic, Richard David Peacock, Andre F. A. Fournier, Guenadi Miliavski
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Patent number: 11626666Abstract: An integral waveguide device herein includes a polarizer component comprising a waveguide and a dielectric slab, the dielectric slab configured to change a polarization of a signal passing through the waveguide. The integral waveguide device also includes a feed horn for conveying signals between the waveguide and a parabolic antenna. The waveguide of the polarizer and the feed horn are manufactured as an integral component with the feed horn disposed at a first end of the waveguide.Type: GrantFiled: July 30, 2021Date of Patent: April 11, 2023Assignee: Hughes Network Systems, LLCInventors: Peter Hou, Junyu Shen, George Eapen, Kunj Desai, Peter Mclaren
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Patent number: 11600917Abstract: An antenna cover is used with an antenna for passing therethrough a radiation of the antenna in order to modify an antenna pattern of the antenna. The antenna cover includes a housing having a first surface and a second surface; and a plurality of through holes penetrating through the housing and extending from the first surface to the second surface. By way of adjusting distances between the plurality of through holes and/or adjusting sizes of the plurality of through holes, the antenna cover functions to adjust the radiation of the antenna from a first antenna pattern to a second antenna pattern.Type: GrantFiled: August 12, 2021Date of Patent: March 7, 2023Assignee: ALPHA NETWORKS INC.Inventors: Yi Ju Lee, Ding-Bing Lin, Nien-Chih Tsai
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Patent number: 11594821Abstract: Aspects of the subject disclosure may include, for example, a polarization shifter including a lower substrate having disposed thereon first and second transmission lines for coupling to a feed network, an upper substrate having disposed thereon third and fourth transmission lines for respective communicative coupling to orthogonally-polarized elements of a radiating element, and a dielectric layer residing between the lower substrate and the upper substrate, the upper substrate being configured to mechanically couple to the radiating element, the dielectric layer coupling the first transmission line with the third transmission line and coupling the second transmission line with the fourth transmission line, the upper substrate being rotatable relative to the lower substrate to effect polarization adjusting for the radiating element to facilitate avoidance of interference or passive intermodulation (PIM). Other embodiments are disclosed.Type: GrantFiled: July 7, 2022Date of Patent: February 28, 2023Assignee: ISCO International, LLCInventors: Amr Abdelmonem, Anthony Teillet, Richard Loy Smith, Jr., David E. Urbasic, Richard David Peacock, Andre F. A. Fournier, Guenadi Miliavski
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Patent number: 11588249Abstract: A lensed multi-beam base station antenna may include a plurality of linear arrays of radiating elements, a plurality of reflectors, a sidelobe suppressor, and a lens. Each array may include a plurality of radiating elements (e.g., two or more radiating elements) that extends forwardly from a planar section of a respective reflector. The sidelobe suppressor may comprise radiofrequency (RF) absorber material that absorbs energy that is emitted by a first of the arrays and that is directed toward a reflector underneath a second of the arrays. The sidelobe suppressor may comprise a RF choke that reduces the RF energy emitted by a first of the arrays that is directed toward a reflector underneath a second of the arrays.Type: GrantFiled: August 7, 2019Date of Patent: February 21, 2023Assignee: CommScope Technologies LLCInventors: Gangyi Deng, Xiangyang Ai, Gilberto Antonio Guerra Arias
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Patent number: 11582840Abstract: A microwave shielding plate and a cooking device are disclosed. The microwave shielding plate includes one or more conductive layers, a conductor is provided in each of the conductive layers, and two ends of the conductor are provided with wiring points, so that a shielding section covering the conductive layers is formed when the conductor is coupled into a conductive loop.Type: GrantFiled: December 29, 2017Date of Patent: February 14, 2023Inventors: Ran Xia, Taofei Huang, Ning Sun
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Patent number: 11542040Abstract: The disclosed method for a communication satellite may include (1) simultaneously generating a first transmission beam to a first ground station and a second transmission beam to each of a plurality of second ground stations in sequence according to a schedule, (2) simultaneously receiving a third transmission beam from the first ground station and a fourth transmission beam from each of the second ground stations in sequence according to the schedule, (3) forwarding first data received via the third transmission beam to each of the second ground stations via the second transmission beam, and (4) forwarding second data received via the fourth transmission beam from each of the second ground stations to the first ground station via the first transmission beam. Various other methods and systems are also disclosed.Type: GrantFiled: November 6, 2019Date of Patent: January 3, 2023Assignee: Meta Platforms, Inc.Inventor: Hamid Hemmati
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Patent number: 11460536Abstract: A sensor assembly for detecting an object is disclosed. The sensor assembly includes at least one radar transmitter configured to emit transmitted radar waves having a first polarization. The sensor assembly also includes at least one radar receiver configured to receive the transmitted radar waves after reflecting from the object as reflected radar waves having a second polarization different than the first polarization and corresponding with a detection of the object relative to the sensor assembly. The at least one radar receiver is additionally configured to reject radar waves having a polarization being different than the second polarization to disregard noise generated by environmental interaction of the transmitted radar waves and from extraneous radar sources.Type: GrantFiled: September 12, 2019Date of Patent: October 4, 2022Assignee: MAGNA CLOSURES, INC.Inventors: Traian Miu, Gabriele Wayne Sabatini
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Patent number: 11448743Abstract: The invention relates to a method for determining the distance and radial speed of an object relative to a measuring point, wherein the method comprises the following steps: a) emitting first transmission signals, which are radar radiation in the form of first frequency ramps, b) emitting second transmission signals, which are radar radiation in the form of second frequency ramps, wherein the second frequency ramps are different to the first frequency ramps, c) receiving received signals, which are first and second transmission signals reflected at the object, d) mixing the received signals with the first or second transmission signals to create mixed signals, e) creating a range-Doppler matrix using the mixed signals, f) detecting two Doppler frequencies, which originate from the radial speed of the object, and g) evaluating the Doppler frequencies and/or phase information of the mixed signals, such that ambiguities are eliminated when determining the radial speed wherein the first transmission signals andType: GrantFiled: January 15, 2018Date of Patent: September 20, 2022Assignee: S.M.S. SMART MICROWAVE SENSORS GMBHInventor: Ralph Mende
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Patent number: 11435465Abstract: A vehicle radar device includes a first antenna unit, a second antenna unit, at least one computing unit and at least one circuit board. The first antenna unit and the second antenna unit are communicatively connected to the at least one computing unit. The at least one circuit board includes a first board portion and a second board portion. The first antenna unit is a circuit board type and disposed on the first board portion. The second antenna unit is a circuit board type and disposed on the second board portion. The at least one computing unit disposed on at least one of the first board portion and the second board portion. When an angle between the first board portion and the second board portion is P12, and the following condition is satisfied: 80degrees ?P12?130 degrees.Type: GrantFiled: June 9, 2020Date of Patent: September 6, 2022Assignees: CUB ELECPARTS INC., CUBTEK INC.Inventors: San-Chuan Yu, Yuan-Tung Hung, Ya-Ling Chi, Cheng-Hsin Li, Zheng-Wei Ke, Wei-Shun Shih
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Patent number: 11424553Abstract: A circuitry for feeding an antenna structure includes an input for LHCP signals, an input for RHCP signals as well as four antenna outputs. In addition, the circuitry includes first, second and third quadrature hybrids as well as at least two delay lines. The first quadrature hybrid is coupled, on the input side, to the first and second inputs and is coupled, on the output side, to the second and third quadrature hybrids. The second quadrature hybrid is coupled, on the output side, to two of the four antenna outputs, the third quadrature hybrid being coupled, on the output side, to two further ones of the four antenna outputs. The at least two delay lines are arranged at two of the four antenna outputs.Type: GrantFiled: July 30, 2020Date of Patent: August 23, 2022Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschune e.V.Inventors: Alexander Popugaev, Mengistu Tessema, Rainer Wansch
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Patent number: 11417964Abstract: The present invention discloses a new single polarized array waveguide antenna adapted to be configured above a signal processing substrate, and including an antenna array substrate and a waveguide body. The antenna array substrate includes a plurality of antenna units, each of which having a coupling portion and an impedance matching portion. The waveguide body is configured above the antenna array substrate, and includes a plurality of waveguide channels passing through the waveguide body. Each waveguide channel has a first ridge and a second ridge projecting from wall surfaces and arranged opposite to each other. The first ridge has a first lower withdrawn edge on a lower section of the waveguide channel, and the second ridge has a second lower withdrawn edge on the lower section of the waveguide channel.Type: GrantFiled: December 31, 2020Date of Patent: August 16, 2022Inventors: Ting-Rui Zhang, Yu-Cheng Chen, Li-Ching Lin, Sheng-Feng Yeh, Chia-Hao Hsu, Tung-Yi Wu
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Patent number: 11398675Abstract: The present invention relates to a feed-motion antenna device. Provided is an antenna for receiving data from low Earth orbit satellites, the antenna comprising a fixedly mounted antenna reflector, a moveable feed, a feed positioner configured to move the feed in the focal plane of the antenna reflector, the feed positioned having a primary rotation axis and an auxiliary rotation axis, and a control device configured to send control signals to the feed positioner. The primary rotation axis of the feed positioner passes through the center of the antenna reflector and the primary rotation axis is perpendicular to the focal plane of the antenna reflector; the auxiliary rotation axis of the feed positioner is parallel to the primary rotation axis. The feed positioner comprises an equal-arm structure comprising a first arm and a second arm, and each arm is arranged in a plane perpendicular to the primary and auxiliary rotation axes.Type: GrantFiled: August 29, 2017Date of Patent: July 26, 2022Inventor: Vladimir Evgenievich Gershenzon
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Patent number: 11367965Abstract: Disclosed is a liquid crystal panel of a scanning antenna including a transmission and/or reception region in which a plurality of antenna units are arrayed, and a non-transmission and/or reception region, the liquid crystal panel including: a TFT substrate provided with a first dielectric substrate, a TFT supported by the first dielectric substrate, a gate bus line, a source bus line, and a patch electrode; a slot substrate provided with a second dielectric substrate, and a slot electrode formed on a first main surface of the second dielectric substrate and including a slot arranged so as to correspond to the patch electrode; a liquid crystal layer provided between the TFT substrate and the slot substrate and including a plurality of liquid crystal regions; and a plurality of sealing portions that respectively surround the plurality of liquid crystal regions and bond the TFT substrate and the slot substrate together.Type: GrantFiled: August 3, 2017Date of Patent: June 21, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Tadashi Ohtake, Takatoshi Orui, Wataru Nakamura, Kiyoshi Minoura, Masanobu Mizusaki
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Patent number: 11362433Abstract: A radar sensor having a plurality of main beam directions, and having a circuit board on which one or a plurality of antenna elements for transmitting and/or receiving of the radar radiation is/are situated. In addition, the radar sensor has at least one or a plurality of dielectric lenses which is/are situated in the optical path of the antenna elements, the optical axis of the dielectric lens being tilted in relation to the main beam direction of the at least one or the plurality of antenna elements under an angle that is greater than zero degrees so that at least one main beam direction of the radar sensor is fixed at a predefined angle to the vertical of the circuit board surface.Type: GrantFiled: September 12, 2018Date of Patent: June 14, 2022Assignee: Robert Bosch GmbHInventors: Benedikt Loesch, Klaus Baur, Marcel Mayer, Mehran Pourmousavi
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Patent number: 11342681Abstract: A secondary reflector is provided which has structural strength based on the hexagonal design and which show frequency selective features and low insertion loss. The antenna system includes a main reflector at which an incoming RF signal from a signal source reaches, a secondary reflector at which the incoming RF signal reaches by being reflected from the main reflector, a second antenna feed to which a transmitted RF signal through the secondary reflector is directed and a first antenna feed to which a reflected RF signal from the secondary reflector is directed. The surface of the secondary reflector has a dielectric support layer with hexagonal holes and a frequency selective surface located on the support layer and having circular rings.Type: GrantFiled: November 5, 2019Date of Patent: May 24, 2022Inventors: Isa Kocakarin, Seymur Shukurov
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Patent number: 11342688Abstract: The present invention provides a dual-polarized radiating element comprising a feeding arrangement and four dipole arms. The feeding arrangement comprises four slots, which extend from a periphery towards a center of the feeding arrangement and which are arranged at regular angular intervals forming a first angular arrangement. The four dipole arms extend outwards from the feeding arrangement and are arranged at regular angular intervals to form a second angular arrangement. The second angular arrangement of the four dipole arms is rotated with respect to the first angular arrangement of the four slots.Type: GrantFiled: March 12, 2020Date of Patent: May 24, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Ignacio Gonzalez, Juan Segador Alvarez, Christoph Spranger, Bruno Biscontini
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Patent number: 11340392Abstract: The present invention relates to electromagnetic meta-material structures to serve as linear polarization sensitive mirrors. Two distinct classes have been developed, including: 1) a phase cohering reflector which maintains the phase of both polarization states with a controlled delay between polarization states, and 2) a phase de-cohering reflector which preserves the phase of one polarization state and destroys the coherence in the other. These reflective structures enable mitigation of spurious resonances in dual-polarization optical systems and phase compensation between polarization states. These polarization control structures have applications in absorber coupled detectors and receiver systems for space-borne and sub-orbital remote sensing applications.Type: GrantFiled: September 27, 2019Date of Patent: May 24, 2022Assignee: United States of America as represented by the Administrator of NASAInventors: Edward Wollack, Kyle Helson
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Patent number: 11316238Abstract: A film transmission line includes a dielectric layer including at least one of a liquid crystal polymer (LCP) structure or a cyclo olefin polymer (COP) structure, and an electrode line on the dielectric layer. A signal loss level (S21) defined of the film transmission line is ?1.5 dB or more at a frequency in a range from 20 GHz to 30 GHz. The film transmission line may be applied to a high frequency thin film antenna and an image display device.Type: GrantFiled: August 27, 2019Date of Patent: April 26, 2022Assignee: DONGWOO FINE-CHEM CO., LTD.Inventors: Yoon Ho Huh, Han Sub Ryu, Yun Seok Oh
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Patent number: 11280934Abstract: The present disclosure relates to electromagnetic marker devices for locating hidden or buried objects. One embodiment includes an antenna having a plurality of conductive windings enclosed in a housing made of a low dielectric constant material and an electronic circuit including a circuit board having circuit elements disposed thereon and electrically coupled to the conductive windings through a connector. The circuit elements receive an input signal having a first frequency from an above-ground transmitter, convert the input signal to a power supply to power up the electronic circuit, generate, in response to the input signal, an output signal having a second frequency different from the first frequency, and provide the output signal, via the antenna element, to an above-ground receiver.Type: GrantFiled: June 21, 2019Date of Patent: March 22, 2022Assignee: SEESCAN, INC.Inventors: Stephanie M. Bench, Mark S. Olsson, Matthew D. Bockman
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Patent number: 11251532Abstract: The present invention relates to a small dipole antenna, and more specifically, to a small dipole antenna comprising a balun, a meander line, and a cap covering the meander line as a whole, wherein both sides of the dipole antenna are provided with the meander line to minimize the overall size of the dipole antenna. The small dipole antenna according to one embodiment of the present invention obtains resonance frequency adjustment characteristics by filling a gap between the arrangement of the meander line disposed on the both sides of the dipole antenna on the basis of the balun and the meander line, and adds a short circuit between the meander line to achieve impedance matching and minimize the overall size of the dipole antenna structure at the same time, thereby having the effect of ensuring tractability of antenna operation regardless of external conditions when measuring electromagnetic wave performance.Type: GrantFiled: May 9, 2019Date of Patent: February 15, 2022Assignees: IVIEW CO., LTD., KOREA AUTOMOTIVE TECHNOLOGY INSTITUTEInventors: Myo Geun Yang, Hyok Lee
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Patent number: 11245199Abstract: The present disclosure relates to antennas. One example antenna includes a reflective device, at least two radiating arrays whose operating bands are in a first preset frequency band, and a plurality of parasitic radiators. Each radiating array of the at least two radiating arrays includes a plurality of radiating elements. Each radiating array of the at least two radiating arrays is electrically disposed on the reflective device along a length direction of the reflective device, and the plurality of parasitic radiators are disposed between two adjacent radiating arrays in the at least two radiating arrays.Type: GrantFiled: November 14, 2019Date of Patent: February 8, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Wei Liu, Weihong Xiao, Dingjiu Daojian
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Patent number: 11205859Abstract: The present disclosure provides a dual-polarized radiating element comprising a feeding arrangement and four dipole arms. The feeding arrangement comprises four slots, which extend from a periphery towards a center of the feeding arrangement and are arranged at regular angular intervals forming a first angular arrangement. The four dipole arms extend outwards from the feeding arrangement and are arranged at regular angular intervals forming a second angular arrangement. The second angular arrangement of the four dipole arms is rotated with respect to the first angular arrangement of the four slots.Type: GrantFiled: November 4, 2019Date of Patent: December 21, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Juan Segador Alvarez, Tao Tang, Bruno Biscontini
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Patent number: 11171401Abstract: In an example embodiment, an azimuth combiner comprises: a septum layer comprising a plurality of septum dividers; first and second housing layers attached to first and second sides of the septum layer; a linear array of ports on a first end of the combiner; wherein the first and second housing layers each comprise waveguide H-plane T-junctions; wherein the waveguide T-junctions can be configured to perform power dividing/combining; and wherein the septum layer evenly bisects each port of the linear array of ports. A stack of such azimuth combiners can form a two dimensional planar array of ports to which can be added a horn aperture layer, and a grid layer, to form a dual-polarized, dual-BFN, dual-band antenna array.Type: GrantFiled: December 6, 2019Date of Patent: November 9, 2021Assignee: Viasat, Inc.Inventors: Donald L. Runyon, Dominic Q. Nguyen, James W. Maxwell
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Patent number: 11165164Abstract: An antenna may include a reflector and a multi-band feed assembly. A support member may be coupled to the multi-band feed assembly to orient the multi-band feed assembly for direct illumination of the reflector. The multi-band feed assembly may include first and second feeds, each having a respective septum polarizer coupled between a respective common waveguide and a respective pair of waveguides. A housing of the support member may contain the respective septum polarizers and the respective pairs of waveguides.Type: GrantFiled: February 27, 2020Date of Patent: November 2, 2021Assignee: ViaSat, Inc.Inventors: Donald L. Runyon, Anders Jensen
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Patent number: 11101537Abstract: In an example embodiment, an azimuth combiner comprises: a septum layer comprising a plurality of septum dividers; first and second housing layers attached to first and second sides of the septum layer; a linear array of ports on a first end of the combiner; wherein the first and second housing layers each comprise waveguide H-plane T-junctions; wherein the waveguide T-junctions can be configured to perform power dividing/combining; and wherein the septum layer evenly bisects each port of the linear array of ports. A stack of such azimuth combiners can form a two dimensional planar array of ports to which can be added a horn aperture layer, and a grid layer, to form a dual-polarized, dual-BFN, dual-band antenna array.Type: GrantFiled: December 6, 2019Date of Patent: August 24, 2021Assignee: Viasat, Inc.Inventors: Donald L. Runyon, Dominic Q. Nguyen, James W. Maxwell
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Patent number: 11095039Abstract: A communication apparatus (1) includes a radio wave radiation source (10), a phase control plate (11) disposed near the radio wave radiation source, and a polarization control plate (12) disposed to be substantially parallel to the phase control plate (11). In the phase control plate (11), a phase of a transmitted electromagnetic wave differs according to a distance from a first representative point on the phase control plate (11). In the polarization control plate (12), a polarization state change given to a transmitted electromagnetic wave at a reference point differs according to an angle formed between a representative line connecting a second representative point on the polarization control plate (12) to an edge of the polarization control plate (12), and a reference line connecting the second representative point to the reference point on the polarization control plate (12).Type: GrantFiled: August 22, 2017Date of Patent: August 17, 2021Assignee: NEC CORPORATIONInventor: Yoshiaki Kasahara
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Patent number: 11063656Abstract: A wireless node described herein transmits and receives high frequency signals with three or more different polarizations simultaneously thereby increasing network capacity. The different polarizations can be achieved by using polarizer sheets and/or orthomode transducer assemblies or Cassegrain antennas with multiple subreflectors.Type: GrantFiled: May 25, 2018Date of Patent: July 13, 2021Assignee: Starry, Inc.Inventors: Volkan Efe, Joseph Thaddeus Lipowski
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Patent number: 11043750Abstract: Provided is an antenna including: a primary radiator configured to radiate radio waves; and a parabolic reflector configured to reflect the radio waves radiated by the primary radiator and has an aperture diameter reduced to be equal to or smaller than an aperture diameter with which no null points are generated in an antenna pattern in a semi-sphere where the radio waves are reflected and radiated.Type: GrantFiled: December 27, 2019Date of Patent: June 22, 2021Assignee: JAPAN AEROSPACE EXPLORATION AGENCYInventor: Toshihiro Sezai
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Patent number: 11005191Abstract: An omni-directional horizontally polarized antenna system is provided that can include an omni-directional vertically polarized antenna and a plurality of linear polarization filters concentrically surrounding the omni-directional vertically polarized antenna. The omni-directional vertically polarized antenna can generate a vertically polarized field, and the plurality of linear polarization filters can progressively rotate the vertically polarized field 90° to form a horizontally polarized field outside of the plurality of linear polarization filters.Type: GrantFiled: November 6, 2019Date of Patent: May 11, 2021Assignee: PC-TEL, Inc.Inventor: Robert Gunnels
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Patent number: 10998637Abstract: A multiple-feed antenna system includes a first feed configured to communicate signals in a first frequency range of a plurality of frequency ranges and a second feed configured to communicate signals in a second frequency range of the plurality of frequency ranges. A subreflector assembly is configured to move among multiple positions that include a first position and a second position. When the subreflector assembly is in the first position, a first element of the subreflector assembly redirects a signal reflected by a primary reflector to the first feed. When the subreflector assembly is in the second position, a second element of the subreflector assembly redirects the signal reflected by the primary reflector to the second feed.Type: GrantFiled: October 29, 2019Date of Patent: May 4, 2021Assignee: Sea Tel, Inc.Inventors: Rami Adada, Trushar Patel, Wei-Jung Guan, Peter Blaney
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Patent number: 10971805Abstract: A wrist-worn electronic device configured to transmit and receive wireless signals in two frequency bands comprises a bezel loop antenna, first and second signal processing elements, a diplexer, and a tuning element. The bezel loop antenna has a first impedance and is configured to wirelessly receive first and second electronic signals simultaneously. The first and second signal processing elements process the first electronic signal having a frequency in a first frequency band and the second electronic signal having a frequency in a second frequency band. The diplexer is configured to receive the first and second electronic signals and output the first electronic signal to the first signal processing element and the second electronic signal to the second signal processing element. The tuning element has a second impedance causing the bezel loop antenna to wirelessly receive electronic signals in the first frequency band and electronic signals in the second frequency band.Type: GrantFiled: May 10, 2019Date of Patent: April 6, 2021Inventors: John M. Kenkel, Abu T. Sayem, Ting-Ying Chen
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Patent number: 10948293Abstract: A cavity sensor including: a body defining a cavity, the cavity having an opening on one end and a closed surface on other end; a reflective surface disposed in the cavity, the reflective surface being angled 45 degrees relative to a propagation direction of an incoming wave through the opening; and first and second angle probes positioned on each of two ends of the reflective surface. Also provided is a cavity sensor including: a body defining a cavity, the body having two or more conduits, each having an opening, the body having a closed surface opposing the openings, and a probe positioned in the cavity at a position common to each of the two or more conduits.Type: GrantFiled: May 22, 2018Date of Patent: March 16, 2021Assignee: OMNITEK PARTNERS LLCInventor: Jahangir S Rastegar