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公开(公告)号:US11522265B2
公开(公告)日:2022-12-06
申请号:US17240341
申请日:2021-04-26
Inventor: Court E. Rossman , Ronald M. Carvalho, Jr. , John R. Stuart, III , Matthew D. Thoren , John M. Veilleux , Ross J. Wendell
Abstract: An antenna module configured for use on an underwater vehicle is disclosed. The antenna module includes an array of spiral antennas fabricated on a multi-layer substrate that provides wide-band RF communication with direction finding (DF) capability. The antenna module can also include other antennas fabricated on the same multi-layer substrate, such as one or more global positioning system (GPS) receivers, an ultra-high frequency/very-high frequency (UHV/VHF) antenna, or one or more iridium antennas. The antenna module may further include a water-proof housing that is coupled to the outside hull of an undersea vehicle via a coupling mechanism. The coupling mechanism allows the antenna module to rotate between a stowed position against the hull and a deployed position that extends the antennas out away from the undersea vehicle. The antenna module is curved or flexible so it can stow against a corresponding curved hull of the undersea vehicle.
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公开(公告)号:US10665961B1
公开(公告)日:2020-05-26
申请号:US16197703
申请日:2018-11-21
Inventor: Benjamin G. McMahon , Christopher K. Cheung , Robert W. Rogers , Court E. Rossman
Abstract: A dual mode array antenna including a ground plane, a plurality of antenna elements, a tuning mechanism for tuning the array antenna to a resonant frequency, and a base defining a cavity having a depth that is less than half of a wavelength at an upper frequency of the array antenna is disclosed. Each of the plurality of antenna elements includes at least one spiral arm and each of the plurality of antenna elements is embedded in the cavity. The dual mode array antenna operates between the upper frequency and a lower frequency and may operate in one or more resonant frequencies.
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公开(公告)号:US20200161776A1
公开(公告)日:2020-05-21
申请号:US16197703
申请日:2018-11-21
Inventor: Benjamin G. McMahon , Christopher K. Cheung , Robert W. Rogers , Court E. Rossman
Abstract: A dual mode array antenna including a ground plane, a plurality of antenna elements, a tuning mechanism for tuning the array antenna to a resonant frequency, and a base defining a cavity having a depth that is less than half of a wavelength at an upper frequency of the array antenna is disclosed. Each of the plurality of antenna elements includes at least one spiral arm and each of the plurality of antenna elements is embedded in the cavity. The dual mode array antenna operates between the upper frequency and a lower frequency and may operate in one or more resonant frequencies.
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