-
公开(公告)号:US20240305015A1
公开(公告)日:2024-09-12
申请号:US18258428
申请日:2021-12-21
Applicant: A.D.S. INTERNATIONAL S.R.L.
Inventor: Marco FORMAGGI
Abstract: It is disclosed a waveguide array antenna for satellite communications. The antenna is configured to transmit and/or receive a first polarization signal and a second polarization signal, the second polarization being orthogonal to the first polarization, and comprises an array of unit cells, each comprising a radiating element. The antenna comprises: a grid configured to divide each radiating element into sub-elements having an inter-element distance lower than or equal to the wavelength at a highest frequency of operation of the antenna; and an electromagnetic band gap layer configured to support the grid above the radiating elements. The grid comprises a number of grid unit portions, and the electromagnetic band gap layer consists of a number of pins protruding from the walls of each grid unit portion.
-
公开(公告)号:US12072167B2
公开(公告)日:2024-08-27
申请号:US17017509
申请日:2020-09-10
Applicant: Rockwell Collins, Inc.
Inventor: James B. West
CPC classification number: F41G7/2246 , F41G7/2286 , G01S13/426 , H01Q1/40 , H01Q3/38 , H01Q13/02 , G01S2013/0254 , G01S2013/0263 , H01Q1/281
Abstract: An electronically scanned array is comprised of a plurality of radiating horns embedded in a nose cone. The radiating horns are configured as an electronically scanned array. The nose cone comprises a dielectric material with a known thickness in front of the radiating horn opening. Each radiating horn is driven by a phase shifter. The phase shifters are configured to produce a radiation pattern with attenuated side lobes.
-
公开(公告)号:US20240266760A1
公开(公告)日:2024-08-08
申请号:US18272825
申请日:2022-01-21
Applicant: Visban, Network Limited
Inventor: Arokia NATHAN , Suk-Bae CHA , Ryosuke KUWADA
CPC classification number: H01Q25/005 , H01Q13/02 , H01Q13/08
Abstract: A wireless transceiver (1) includes a planar substrate (2) having first (3) and second (4) opposite faces and having a thickness between the first (2) and second (3) opposite faces. The wireless transceiver (1) also includes a number of first antennae (Rx1, . . . , RxN) supported on the first face (3). The wireless transceiver (1) also includes a number of second antennae (Tx1, . . . , TxM) supported on the second face (4). The wireless transceiver (1) also includes a circuit (7) supported by the planar substrate (2) and connected to the first antennae (Rx1, . . . , RxN) and the second antennae (Tx1, . . . , TxM). The circuit (7) includes a number of vias (8) formed through the thickness of the planar substrate (2) for transmission of signals between the circuit (7) and the first antennae (Rx1, . . . , RxN) and/or between the circuit (7) and the second antennae (Tx1, . . . , TxM). The circuit (7) is configured to control the first antennae (Rx1, . . . , RxN) as a first phased array (5) to receive radio signals (9). The first phased array (5) is directional and controllably orientable within a first range of acute angles (θR) to a normal (10) of the first face (3). The circuit (7) is also configured to control the second antennae (Tx1, . . . , TxM) as a second phased array (6) to retransmit (11) the radio signals received using the first phased array (5). The second phased array (6) is directional and controllably orientable within a second range of acute angles (θT) to a normal (12) of the second face (4).
-
公开(公告)号:US20240250447A1
公开(公告)日:2024-07-25
申请号:US18134042
申请日:2023-04-13
Applicant: Nan HU
Inventor: Nan HU
CPC classification number: H01Q17/001 , H01Q13/02
Abstract: Disclosed in the present disclosure is an ultra-wide band antenna using a wave-absorbing material and a dielectric, which relates to the technical field of antennas. The antenna includes an upper fixing plate and a lower fixing plate, a left side plate and a right side plate are fixed between the upper fixing plate and the lower fixing plate separately, and the upper fixing plate, the lower fixing plate, the left side plate and the right side plate are fixed together to form a cylindrical structure. A cavity is fixed at the left end opening of the cylindrical structure, a first wave-absorbing material block is fixed in the cavity, an upper ridge and a lower ridge are arranged in the cylindrical structure, and tail ends of the upper ridge and the lower ridge are inserted into the first wave-absorbing material block.
-
公开(公告)号:US20240088567A1
公开(公告)日:2024-03-14
申请号:US18513182
申请日:2023-11-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Claudia VASANELLI , Jonathan ALVAREZ , Simon TEJERO ALFAGEME , Jordi BALCELLS VENTURA , Sergio DUQUE BIARGE , Alberto PEREZ MONJAS
CPC classification number: H01Q13/02 , H01Q15/142
Abstract: A horn antenna device is disclosed that comprises: a plastic body comprising a top face, a bottom face opposing the top face and lateral faces adjoining the top face and the bottom face; and a cavity formed in the plastic body, wherein the cavity comprises a cavity opening formed at the top face of the plastic body, wherein the cavity is at least partially coated with a metal layer to form a horn antenna for radiating microwaves through the cavity opening, wherein the plastic body is partially coated with the metal layer, and wherein the metal layer being configured to define a radiation characteristic of the horn antenna.
-
公开(公告)号:US11909115B2
公开(公告)日:2024-02-20
申请号:US17338699
申请日:2021-06-04
Applicant: City University of Hong Kong
Inventor: Chi Hou Chan , Ka Fai Chan , Gengbo Wu
CPC classification number: H01Q19/062 , H01Q3/14 , H01Q13/02
Abstract: The present invention relates to a novel lens antenna with a 3D near-field focus-steering capability that operates at gigahertz and terahertz frequencies. The novel antenna includes a pair of discrete dielectric lenses fed by a stationary horn source. In-plane synchronous counter-rotation and co-rotation of the lens pair steers its near-field focus radially and azimuthally, respectively, while linear translation of the upper lens moves the focal point longitudinally. The steering focus beam enables fast imaging. In imaging applications, the radiated beam from the novel lens antenna focused in the target area can reduce undesired interference from neighboring structures and increase the system dynamic range and signal-to-noise ratio.
-
公开(公告)号:US20240022000A1
公开(公告)日:2024-01-18
申请号:US18223167
申请日:2023-07-18
Inventor: Moon Il KIM , Yang Woo KIM , Yun Kyeong KOH
IPC: H01Q13/02
CPC classification number: H01Q13/02
Abstract: Disclosed is a terahertz band beamforming antenna system. A terahertz band beamforming antenna system includes: a metal waveguide top portion; and a metal waveguide bottom portion which is coupled to the metal waveguide top portion, and at which an antenna portion including a feed transmission line and a radiation antenna is positioned, wherein the metal waveguide top portion and the metal waveguide bottom portion may have radiation openings, and may be coupled to seal at least a top surface, a bottom surface, and both side surfaces of the antenna portion.
-
公开(公告)号:US11860300B2
公开(公告)日:2024-01-02
申请号:US17529856
申请日:2021-11-18
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION
Inventor: Jihoon Park , David Oh
IPC: G01S7/40 , H01Q1/32 , G01S13/931 , H01Q13/02
CPC classification number: G01S7/4008 , G01S13/931 , H01Q1/3233 , H01Q13/02 , G01S2013/9316 , G01S2013/9327
Abstract: A vehicle radar inspection system and method are provided for inspecting a mounting state of a radar sensor mounted to a vehicle. The vehicle radar inspection system includes a centering portion that aligns a position of the vehicle by driving rollers, displacement sensors that are respectively disposed at front and rear sides of the centering portion, an array antenna that measures propagation intensity of a radar signal transmitted from the radar sensor, and a server that connects wireless communication with a wireless terminal of the vehicle, calculates a mounting position of the radar sensor, and detects a mounting error of the radar sensor with reference to a normal reference mounting specification.
-
公开(公告)号:US20230417904A1
公开(公告)日:2023-12-28
申请号:US17852324
申请日:2022-06-28
Applicant: Veoneer US, LLC
Inventor: Scott B. Doyle
IPC: G01S13/931 , H01Q1/32 , H01Q13/02
CPC classification number: G01S13/931 , H01Q1/3233 , H01Q13/02
Abstract: Antenna structures and assemblies for use in RADAR sensor assemblies and the like. In some embodiments, the assembly may comprise a printed circuit board, an integrated circuit coupled to the printed circuit board on a first surface of the printed circuit board, and an antenna coupled to the printed circuit board on a second surface of the printed circuit board opposite the first surface. A vertical waveguide may extend through the printed circuit board from the integrated circuit to the antenna and may be configured to deliver and/or receive electromagnetic energy between the integrated circuit and the antenna.
-
公开(公告)号:US11841260B2
公开(公告)日:2023-12-12
申请号:US17149957
申请日:2021-01-15
Applicant: KROHNE Messtechnik GmbH
Inventor: Robert Storch
IPC: G01F23/284 , H01Q13/02
CPC classification number: G01F23/284 , H01Q13/02
Abstract: A fill level sensor for detecting a level of a fill medium in a container includes a generator having a feed line, an antenna, a supply and a controller. The generator generates electromagnetic waves having a resonant frequency and outputs the electromagnetic waves via the feed line having a line impedance with a line impedance value. The supply is arranged between the feed line and the antenna and transmits the electromagnetic waves from the feed line to the antenna. The supply has a resonant circuit. The resonant circuit and the antenna together have a resonant input impedance in the transmission direction. The resonant circuit transforms the resonant input impedance at the resonant frequency into a real impedance having a predetermined resonant impedance value. The antenna has an antenna resonant frequency different from the resonant frequency.
-
-
-
-
-
-
-
-
-