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公开(公告)号：US2296032A
公开(公告)日：1942-09-15
申请号：US19189838
申请日：1938-02-23
申请人： RCA CORP
发明人： HAMMOND JR JOHN HAYS
IPC分类号： G01S3/64
CPC分类号： G01S3/64
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2.发明公开公开(公告)号：US20230204704A1
公开(公告)日：2023-06-29
申请号：US18089018
申请日：2022-12-27
摘要： A computer system for angle of arrival estimation receives one or more snapshots from a circular array of antennas. The computer system processes the one or more snapshots for amplitude and/or phase-based direction finding using two cascaded algorithms. The first algorithm of the two cascaded algorithms is configured to identify a target subregion from which a signal arrives. The second algorithm of the two cascaded algorithms is configured to identify a direction of the signal within the target subregion.
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公开(公告)号：US12038519B2
公开(公告)日：2024-07-16
申请号：US18458849
申请日：2023-08-30
摘要： Beamforming is a critical element of 5G and especially 6G, but currently requires a series of time-consuming and resource-consuming messages. Disclosed are procedures by which base stations can transmit a phased beam pulse, having a phase that varies with angle, so that each user device can measure the received phase of the pulse and thereby determine its angle relative to the base station. Each user can then sequentially inform the base station of its orientation relative to the base station, or can append that information to another message such as an initial access message or an acknowledgement, for example. The user device and the base station can then exchange messages in narrow beams aimed at each other according to the alignment angle. Also disclosed are procedures to economically generate the wide-angle phased beam by combining overlapping beams of various phases.
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公开(公告)号：US4635065A
公开(公告)日：1987-01-06
申请号：US636218
申请日：1984-07-31
申请人： Kenzo Mori , Hyo Yasuda , Minoru Suzuki
发明人： Kenzo Mori , Hyo Yasuda , Minoru Suzuki
摘要： An antenna device for a direction finder includes a substantially grounded conductive base plate, a plurality of web-shaped antenna elements mounted in spaced relation on the base plate and having central portions extending in crisscross relation and insulated from each other, an electronic switching circuit for alternately grounding ends of the antenna elements and picking up reception outputs from opposite ends of the antenna elements at a constant period with the antenna elements being switched out of phase at an angle corresponding to the angle at which the antenna elements extend across each other, and a circuit for combining outputs from the antenna elements. According to another embodiment, the antenna elements comprise the web-shaped antenna elements and a vertical antenna element disposed substantially centrally in the web-shaped antenna elements.
摘要翻译： 用于取向器的天线装置包括基本上接地的导电基板，多个腹板状天线元件，其间隔开地安装在基板上并且具有交叉相互延伸并且彼此绝缘的中心部分，电子开关电路 交替地接地天线元件的端部，并且以恒定的周期从天线元件的相对端拾取接收输出，天线元件以与天线元件彼此延伸的角度相对应的角度相异地切换，以及 用于组合来自天线元件的输出的电路。 根据另一个实施例，天线元件包括网状天线元件和基本上设置在网状天线元件中心的垂直天线元件。
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公开(公告)号：US11782119B2
公开(公告)日：2023-10-10
申请号：US17897657
申请日：2022-08-29
摘要： Procedures are disclosed to enable a wireless device to determine its alignment direction toward a base station or another device in 5G or 6G, using a “phased beam-alignment pulse”, which is a transmitted pulse having phase modulation that varies with angle. For example, the pulse may be transmitted spanning 360 degrees of angle, and may be phase modulated varying from 0 to 360 degrees of phase in the same angular range. A user device can receive the phased beam-alignment pulse and immediately determine, from the phase, the alignment angle toward the transmitter. In another embodiment, the transmitter transmits a uniform, non-directional pulse, and the receiver receives it using an antenna configured to impose an angle-dependent phase shift, thereby indicating the alignment direction. With either method, wireless entities can align their beams rapidly and efficiently, using just one or two resource elements, without complex encoding or time-consuming handshaking.
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