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公开(公告)号：US20220250744A1
公开(公告)日：2022-08-11
申请号：US17171383
申请日：2021-02-09
摘要： An unmanned aerial vehicle for at least one of direction finding and spectrum monitoring includes a main body including at least one electronic circuit and at least one motor. The unmanned aerial vehicle also has at least one rotor associated with the motor. The unmanned aerial vehicle includes an outer housing surrounding the rotor partially, the outer housing including at least one antenna module configured to receive a radio signal.
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公开(公告)号：US11380989B2
公开(公告)日：2022-07-05
申请号：US16676895
申请日：2019-11-07
申请人： The Boeing Company
摘要： In examples, systems and methods for a conformal array are described. In one example, an array is described. The array includes a plurality of antenna elements formed in a conformal array. The conformal array is arranged on a non-planar surface. Additionally, the array includes a respective feed for each of at least a subset of the antennas of the plurality of antenna elements. Each feed of the array is coupled to a respective antenna of the plurality of antennas based on a taper profile determined based on the non-planar surface. In another example, a method of determining an antenna array is disclosed. The method includes determining a planar array configuration for a plurality of antennas. The method further includes mapping the planar array configuration to a conformal surface to form a conformal array. Additionally, the method includes determining a taper profile based on the conformal array.
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公开(公告)号：US11375616B2
公开(公告)日：2022-06-28
申请号：US17123522
申请日：2020-12-16
申请人： The Boeing Company
摘要： A radio frequency signal repeater includes, a first communication printed circuit board, a second communication printed circuit board, at least one embedded radio frequency module printed circuit board disposed between and communicably coupled to both the first communication printed circuit board and the second communication printed circuit board. The at least one embedded radio frequency module printed circuit board, the first communication printed circuit board, and the second communication printed circuit board are stacked one board on top of the others, and adjacent boards of the at least one embedded radio frequency module printed circuit board, the first communication printed circuit board, and the second communication printed circuit board are electrically coupled by a respective interconnection join layer so as to form an integrated printed circuit board module, where the adjacent boards are electrically coupled to each other through vias that extend through the interconnection join layer.
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公开(公告)号：US11362415B2
公开(公告)日：2022-06-14
申请号：US17186639
申请日：2021-02-26
申请人： Viasat Inc.
发明人： Frederic Bongard , Xavier Aubry , Martin Gimersky
摘要： The described features include a scalable waveguide architecture for a waveguide device. The waveguide device may be split into one or more waveguide blocks instead of manufacturing increasingly larger single-piece waveguide devices. Described techniques provide for a radio-frequency (RF) seal between such waveguide blocks that may facilitate greater manufacturing tolerances while maintaining an effective RF seal at the junction of the waveguide blocks. The described techniques include channels within one or more waveguide blocks opening to the dielectric gap between the waveguide blocks. The channels may, for each of multiple waveguides joined at the interface between waveguide blocks, be included in one or both waveguide blocks and may be in a single waveguide dimension relative to the multiple waveguides, or extend for more than one waveguide dimensions.
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公开(公告)号：US11356921B2
公开(公告)日：2022-06-07
申请号：US17000292
申请日：2020-08-22
申请人： Star Mesh LLC
发明人： Gerald R. Schloemer
IPC分类号： H04W16/28 , H01Q15/14 , H01Q1/28 , H04W40/12 , H04B7/185 , H04L12/26 , H04L43/0823 , H04L43/18
摘要： A radio communication route enables communication from an originating ground station to a destination ground station via one of multiple randomly orbiting satellites with no active attitude control. The ground stations and satellites include multi-feed parabolic antennas for receiving radio signals from and transmitting radio signals in multiple directions. The satellites store an address of a destination ground station from which an initial information signal is transmitted and antenna information identifying the satellite antenna feed on which the initial information signal was received. Plural satellite antennas transmit linking information identifying the satellite to the originating ground station. Data transmissions received at the originating ground station that designate a particular destination are transmitted by the originating ground station using the antenna on which the linking information was received and the satellite retransmits the data transmission using the satellite antenna feed identified by the stored antenna information.
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公开(公告)号：US11336007B1
公开(公告)日：2022-05-17
申请号：US17144623
申请日：2021-01-08
发明人： Joseph T. Graf , James B. West
摘要： A system of antennas, each having disparity operating frequencies, are incorporated into the same aircraft body panels. HF antennas define loops with large internal areas; additional higher frequency antennas are disposed within that large internal area. The higher frequency antennas are sufficiently different so as to prevent coupling. Antennas operating in the same frequency range, disposed on different parallel surfaces are operated in concert as a steerable array.
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77.发明申请公开(公告)号：US20220149536A1
公开(公告)日：2022-05-12
申请号：US17521690
申请日：2021-11-08
摘要： A system for reducing antenna spillover in a satellite communications system is disclosed. The system may include an apparatus comprising an antenna terminal, which in turn may include a sub-reflector and a main reflector. The main reflector may include at least one of an extension, a shroud, and a serrated edge. The extension may be a full rim extension or a partial extension. The shroud may be a full shroud or a partial shroud. The serrated edge may include a straight serration or a curved serration, the serrated edge also having various dimensions and profiles. In some examples, the sub-reflector and the main reflector of the antenna terminal may be provided and configured to reduce antenna spillover in accordance with antenna performance and interference restrictions set forth by one or more governing bodies.
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公开(公告)号：US11329398B2
公开(公告)日：2022-05-10
申请号：US16620787
申请日：2018-06-13
发明人： Vladimir Rojanski
摘要： An antenna device is presented. The antenna device comprises: a conformal antenna body which has a desired geometry corresponding to a front portion of a platform on which the antenna device is to be mounted, and an antenna unit carried by the antenna body. The antenna unit comprises at least one phased array of antenna elements. The antenna elements of each array are arranged in a spaced-apart relationship in a closed loop path along a circumference of the antenna body having a desired geometry corresponding to a front portion of platform on which the antenna unit is to be mounted. Each of the antenna elements is configured as an end-fire antenna element capable of emitting linearly polarized radiation, the array of the antenna elements being thereby operable as a forward looking end-fire antenna array, enabling electronic steering of an antenna beam by controllably modifying phases of the antenna elements of each array.
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公开(公告)号：US11309623B2
公开(公告)日：2022-04-19
申请号：US16822457
申请日：2020-03-18
发明人： Hirobumi Saito , Budhaditya Pyne , Jiro Hirokawa
摘要： An antenna device includes: an antenna panel; one input terminal through which a high-frequency signal is input; and a feeding circuit which distributes the high-frequency signal input to the input terminal to a plurality of antenna elements provided on the antenna panel. The feeding circuit includes: at least one first-stage branch circuit which includes one input and two outputs; at least two second-stage branch circuits which receive outputs of the first-stage branch circuit and include one input and two outputs; and a combining circuit which includes two inputs and one output and receives two outputs selected from the outputs of the first-stage branch circuit and outputs of the second-stage branch circuit.
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公开(公告)号：US20220115776A1
公开(公告)日：2022-04-14
申请号：US17512369
申请日：2021-10-27
申请人： Viasat, Inc.
IPC分类号： H01Q1/28 , H04B7/06 , H01Q21/28 , H04B7/185 , H01Q1/42 , H01Q3/08 , H01Q3/24 , H01Q21/06 , H01Q3/02 , H04B7/195 , H04B7/08
摘要： In one example, an antenna system is described. The antenna system includes a primary antenna on an aircraft. The primary antenna is mechanically steerable and has an asymmetric antenna beam pattern with a narrow beamwidth axis and a wide beamwidth axis at boresight. The antenna system also includes a secondary antenna on the aircraft, the secondary antenna including an array of antenna elements. The antenna system also includes an antenna selection system to control communication of a signal between the aircraft and a target satellite via the primary antenna and the secondary antenna. The antenna selection system switches communication of the signal from the primary antenna to the secondary antenna when a performance characteristic for communication with the target satellite satisfies a threshold due to a position of the aircraft relative to the target satellite.
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