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公开(公告)号：US10978808B2
公开(公告)日：2021-04-13
申请号：US15744625
申请日：2016-07-15
摘要： A phased array line feed for a reflector antenna, including a plurality of substantially parallel metallic rods and a phase/power switching matrix electrically connected to the metallic rods. The phase/power switching matrix may steer a beam of the reflector antenna by adjusting the phase and/or power difference between the metallic rods. The phased array line feed may also include a plurality of substantially parallel metallic disks. The metallic rods may extend through the metallic disks substantially perpendicular to the metallic discs. The metallic discs may be equally spaced and the diameter of the metallic disks may decrease along the length of the metallic rods. Alternatively, the diameters of the metallic discs may be equal and the distances between the metallic discs may decrease along the length of the metallic rods.
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公开(公告)号：US10938117B2
公开(公告)日：2021-03-02
申请号：US16492561
申请日：2018-03-09
摘要： A cross-link satellite with spherical reflectors that can communicate in up to five substantially orthogonal directions, and thus can be included in a satellite constellation, that can be built and deployed at a lower cost than conventional satellite antennas in conventional satellite constellations. The cross-link satellite includes a communications hub in the center of a spherical balloon. The spherical balloon includes a transparent surface and three or more reflective surfaces. The reflective surfaces include a continuous reflective surface (e.g., for communicating with the ground), a first polarized reflective surface, and a second polarized reflective surface opposite the first polarized reflective surface. The first polarized reflective surface and the second polarized reflective surface are orthogonally polarized, enabling the cross-link satellite to communicate with satellites on either side of the cross-link satellite as part of a satellite constellation.
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公开(公告)号：US20200044354A1
公开(公告)日：2020-02-06
申请号：US16492561
申请日：2018-03-09
摘要： A cross-link satellite with spherical reflectors that can communicate in up to five substantially orthogonal directions, and thus can be included in a satellite constellation, that can be built and deployed at a lower cost than conventional satellite antennas in conventional satellite constellations. The cross-link satellite includes a communications hub in the center of a spherical balloon. The spherical balloon includes a transparent surface and three or more reflective surfaces. The reflective surfaces include a continuous reflective surface (e.g., for communicating with the ground), a first polarized reflective surface, and a second polarized reflective surface opposite the first polarized reflective surface. The first polarized reflective surface and the second polarized reflective surface are orthogonally polarized, enabling the cross-link satellite to communicate with satellites on either side of the cross-link satellite as part of a satellite constellation.
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公开(公告)号：US11171425B2
公开(公告)日：2021-11-09
申请号：US15917427
申请日：2018-03-09
IPC分类号： H01Q15/16 , H01Q21/00 , H01Q21/06 , H01Q19/15 , G01S3/42 , H01Q13/28 , H01Q3/26 , H01Q3/36 , H01Q3/24 , H01Q1/08 , G01S19/42
摘要： A spherical reflector antenna, including a sphere with a reflective surface opposite a transparent surface, a feed system that receives electromagnetic waves that (pass through the transparent surface at a beam angle) and are reflected off the reflective surface at a beam angle and outputs electromagnetic waves that are reflected off the reflective surface (and pass through the transparent surface at a beam angle), and beam steering electronics that identify a position of the spherical reflector antenna, identify an orientation of the sphere, and adjust the beam angle of the feed system based on angle from the position of spherical reflector antenna to the target relative to the orientation of the sphere.
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公开(公告)号：US10680310B2
公开(公告)日：2020-06-09
申请号：US16227862
申请日：2018-12-20
申请人： The Arizona Board of Regents on Behalf of the University of Arizona , Southwest Research Institute
摘要： A balloon reflector antenna for a satellite, including a spherical balloon with a surface transparent to electromagnetic waves and a reflective surface opposite the transparent surface. The balloon reflector antenna may further include a feed system extending from the center of the balloon that receives electromagnetic waves reflected off the reflective surface and/or outputs electromagnetic waves that are reflected off the reflective surface.
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公开(公告)号：US10199711B2
公开(公告)日：2019-02-05
申请号：US15154760
申请日：2016-05-13
申请人： The Arizona Board of Regents on Behalf of the University of Arizona , Southwest Research Institute
摘要： A balloon reflector antenna for a satellite, including a spherical balloon with a surface transparent to electromagnetic waves and a reflective surface opposite the transparent surface. The balloon reflector antenna may further include a feed system extending from the center of the balloon that receives electromagnetic waves reflected off the reflective surface and/or outputs electromagnetic waves that are reflected off the reflective surface.
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公开(公告)号：US20180212334A1
公开(公告)日：2018-07-26
申请号：US15744625
申请日：2016-07-15
CPC分类号： H01Q19/15 , G01S13/02 , H01Q3/245 , H01Q3/26 , H01Q3/28 , H01Q3/30 , H01Q15/14 , H01Q19/175 , H01Q21/0006 , H01Q21/061 , H01Q21/20 , H01Q21/22
摘要： A phased array line feed for a reflector antenna, including a plurality of substantially parallel metallic rods and a phase/power switching matrix electrically connected to the metallic rods. The phase/power switching matrix may steer a beam of the reflector antenna by adjusting the phase and/or power difference between the metallic rods. The phased array line feed may also include a plurality of substantially parallel metallic disks. The metallic rods may extend through the metallic disks substantially perpendicular to the metallic discs. The metallic discs may be equally spaced and the diameter of the metallic disks may decrease along the length of the metallic rods. Alternatively, the diameters of the metallic discs may be equal and the distances between the metallic discs may decrease along the length of the metallic rods.
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公开(公告)号：US11630299B1
公开(公告)日：2023-04-18
申请号：US16863676
申请日：2020-04-30
摘要： Various examples are provided related to amplified deformable mirrors (ADMs). In one embodiment, an ADM includes a deformable mirror and a flexible dielectric matrix deposited on a front side of the deformable mirror. A pathlength of a wavelength, λ0, of electromagnetic radiation passing through the dielectric matrix can be amplified by a distribution of dielectric particles embedded in the dielectric matrix.
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公开(公告)号：US20210226337A1
公开(公告)日：2021-07-22
申请号：US17224217
申请日：2021-04-07
摘要： A phased array line feed for a reflector antenna, including a plurality of substantially parallel metallic rods and a phase/power switching matrix electrically connected to the metallic rods. The phase/power switching matrix may steer a beam of the reflector antenna by adjusting the phase and/or power difference between the metallic rods. The phased array line feed may also include a plurality of substantially parallel metallic disks. The metallic rods may extend through the metallic disks substantially perpendicular to the metallic discs. The metallic discs may be equally spaced and the diameter of the metallic disks may decrease along the length of the metallic rods. Alternatively, the diameters of the metallic discs may be equal and the distances between the metallic discs may decrease along the length of the metallic rods.
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公开(公告)号：US10461432B1
公开(公告)日：2019-10-29
申请号：US15667226
申请日：2017-08-02
摘要： Collapsible feed structures to further improve the ability of a reflector antenna (e.g., a spherical balloon reflector antenna) to collapse are disclosed. In a first embodiment, feed systems that include a metallic layer deposited on a dielectric support curtain (e.g., the dielectric support curtain of a spherical balloon antenna), one or more Vee antenna structures, patterned on the metallic layer, that receive a signal reflected off a reflective surface and/or emit a signal that is reflected off a reflective surface, and one or more slot line transmission lines, patterned on the metallic layer, that transmit a signal to and/or from one of the Vee antenna structures. In a second embodiment, a collapsible line feed that includes a plurality of metallic disks and a flexible monopole passing through the plurality of metallic disks.
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