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公开(公告)号：US11863289B2
公开(公告)日：2024-01-02
申请号：US17907080
申请日：2021-03-03
申请人： ViaSat, Inc.
发明人： Aaron Mendelsohn
CPC分类号： H04B7/1851 , B64G1/1007 , B64G1/242 , H04B7/195
摘要： A satellite communication system in which a plurality of satellites each transit about the Earth in a common mid-Earth orbit. The orbit may be configured such that each satellite of the plurality of satellites follows a common, repeating ground track relative to the surface of the Earth. In turn, one or more repeating sky tracks may be defined relative to at least one ground station such that the ground station is in continuous communication with at least one of the plurality of satellites. In an example, a ground station may have visibility to a plurality of repeating sky tracks such that a plurality of discreet communication channels is provided that use different satellites for communication with user terminals of the satellite communications system.
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公开(公告)号：US20230224024A1
公开(公告)日：2023-07-13
申请号：US18187139
申请日：2023-03-21
申请人： Viasat Inc.
发明人： Aaron Mendelsohn , Donald Runyon
CPC分类号： H04B7/18515 , H01Q1/288 , H01Q3/18 , H04B7/2041
摘要： The described features generally relate to adjusting a native antenna pattern of a satellite to adapt communications via the satellite. For example, a communications satellite may include an antenna having a feed array assembly, a reflector, and a linear actuator coupled between the feed array assembly and the reflector. The feed array assembly may have a plurality of feeds for communicating signals associated with a communications service, and the reflector may be configured to reflect the signals transmitted between the feed array assembly and one or more target devices. The linear actuator may have an adjustable length, or otherwise provide an adjustable position between the feed array assembly and the reflector. By adjusting the position of the feed array assembly relative to the reflector, the communications satellite may provide a communications service according to a plurality of native antenna patterns.
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公开(公告)号：US08723724B2
公开(公告)日：2014-05-13
申请号：US13842346
申请日：2013-03-15
申请人： ViaSat, Inc.
发明人： Aaron Mendelsohn , Mark Miller
IPC分类号： H04B7/185
CPC分类号： H04B7/18513 , H04B7/18515 , H04B7/2041
摘要： Methods, systems, and devices are described for orienting a satellite antenna. In the methods, systems, and devices of the present disclosure, a satellite may provide multiple spot beams, each of the spot beams associated with a specific coverage area. The satellite may also transmit a wide beam downlink signal over a wide area beam having a coverage area that includes each of the spot beams. The satellite may receive an uplink beacon signal. The satellite antenna may be positioned according to azimuth and elevation determined from ground measurements of the spot beams and the satellite measurements of the uplink beacon signal.
摘要翻译： 描述了用于定向卫星天线的方法，系统和设备。 在本公开的方法，系统和设备中，卫星可以提供多个点波束，每个点波束与特定覆盖区域相关联。 卫星还可以在具有覆盖区域的广域波束上发射宽波束下行链路信号，该覆盖区域包括每个点波束。 卫星可以接收上行链路信标信号。 卫星天线可以根据由点波束的地面测量和上行链路信标信号的卫星测量确定的方位和仰角来定位。
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公开(公告)号：US11463160B2
公开(公告)日：2022-10-04
申请号：US16824854
申请日：2020-03-20
申请人： ViaSat, Inc.
发明人： Aaron Mendelsohn , Donald Becker
摘要： Systems and methods are described for enabling flexible signal pathways within a satellite of a satellite communications system. For example, a pathway selection subsystem in a bent-pipe satellite enables a flexible arrangement of non-processed signal pathways that couple uplink antenna ports with downlink antenna ports via uplink and downlink pathway selectors. The pathway selectors can be dynamically reconfigured (e.g., on orbit), so that the configuration of the pathway selectors at one time can form one set of signal pathways between respective uplink and downlink antenna ports, and the configuration at another time can form a different set of signal pathways between respective uplink and downlink antenna ports. The pathway selection subsystem can have a simulcast mode which, when active, couples each of at least one of the uplink antenna ports with multiple of the user downlink antenna ports to form one or more simulcast signal pathways.
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公开(公告)号：US20200235807A1
公开(公告)日：2020-07-23
申请号：US16824854
申请日：2020-03-20
申请人： ViaSat, Inc.
发明人： Aaron Mendelsohn , Donald Becker
摘要： Systems and methods are described for enabling flexible signal pathways within a satellite of a satellite communications system. For example, a pathway selection subsystem in a bent-pipe satellite enables a flexible arrangement of non-processed signal pathways that couple uplink antenna ports with downlink antenna ports via uplink and downlink pathway selectors. The pathway selectors can be dynamically reconfigured (e.g., on orbit), so that the configuration of the pathway selectors at one time can form one set of signal pathways between respective uplink and downlink antenna ports, and the configuration at another time can form a different set of signal pathways between respective uplink and downlink antenna ports. The pathway selection subsystem can have a simulcast mode which, when active, couples each of at least one of the uplink antenna ports with multiple of the user downlink antenna ports to form one or more simulcast signal pathways.
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公开(公告)号：US20140022120A1
公开(公告)日：2014-01-23
申请号：US13842346
申请日：2013-03-15
申请人： ViaSat, Inc.
发明人： Aaron Mendelsohn , Mark Miller
IPC分类号： H04B7/185
CPC分类号： H04B7/18513 , H04B7/18515 , H04B7/2041
摘要： Methods, systems, and devices are described for orienting a satellite antenna. In the methods, systems, and devices of the present disclosure, a satellite may provide multiple spot beams, each of the spot beams associated with a specific coverage area. The satellite may also transmit a wide beam downlink signal over a wide area beam having a coverage area that includes each of the spot beams. The satellite may receive an uplink beacon signal. The satellite antenna may be positioned according to azimuth and elevation determined from ground measurements of the spot beams and the satellite measurements of the uplink beacon signal.
摘要翻译： 描述了用于定向卫星天线的方法，系统和设备。 在本公开的方法，系统和设备中，卫星可以提供多个点波束，每个点波束与特定覆盖区域相关联。 卫星还可以在具有覆盖区域的广域波束上发射宽波束下行链路信号，该覆盖区域包括每个点波束。 卫星可以接收上行链路信标信号。 卫星天线可以根据由点波束的地面测量和上行链路信标信号的卫星测量确定的方位和仰角来定位。
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公开(公告)号：US12052087B2
公开(公告)日：2024-07-30
申请号：US18187139
申请日：2023-03-21
申请人： Viasat Inc.
发明人： Aaron Mendelsohn , Donald Runyon
CPC分类号： H04B7/18515 , H01Q1/288 , H01Q3/02 , H01Q3/18 , H01Q19/17 , H01Q25/007 , H04B7/2041
摘要： The described features generally relate to adjusting a native antenna pattern of a satellite to adapt communications via the satellite. For example, a communications satellite may include an antenna having a feed array assembly, a reflector, and a linear actuator coupled between the feed array assembly and the reflector. The feed array assembly may have a plurality of feeds for communicating signals associated with a communications service, and the reflector may be configured to reflect the signals transmitted between the feed array assembly and one or more target devices. The linear actuator may have an adjustable length, or otherwise provide an adjustable position between the feed array assembly and the reflector. By adjusting the position of the feed array assembly relative to the reflector, the communications satellite may provide a communications service according to a plurality of native antenna patterns.
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公开(公告)号：US10985833B2
公开(公告)日：2021-04-20
申请号：US16500394
申请日：2017-04-10
申请人： VIASAT, INC.
发明人： Aaron Mendelsohn , Donald Runyon
摘要： The described features generally relate to adjusting a native antenna pattern of a satellite to adapt communications via the satellite. For example, a communications satellite may include an antenna having a feed array assembly, a reflector, and a linear actuator coupled between the feed array assembly and the reflector. The feed array assembly may have a plurality of feeds for communicating signals associated with a communications service, and the reflector may be configured to reflect the signals transmitted between the feed array assembly and one or more target devices. The linear actuator may have an adjustable length, or otherwise provide an adjustable position between the feed array assembly and the reflector. By adjusting the position of the feed array assembly relative to the reflector, the communications satellite may provide a communications service according to a plurality of native antenna patterns.
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公开(公告)号：US09762308B2
公开(公告)日：2017-09-12
申请号：US14952722
申请日：2015-11-25
申请人： ViaSat, Inc.
发明人： Aaron Mendelsohn , Mark J. Miller
CPC分类号： H04B7/18513 , H04B1/745 , H04B7/0408 , H04B7/10 , H04B7/18517 , H04B2001/0416 , H04W72/0453 , H04W74/004 , H04W74/006 , H04W88/02
摘要： Systems and methods are described for paired-beam satellite communications in a flexible satellite architecture. Embodiments include one or more “bent pipe” satellites having multiple transponders for servicing a number of spot beams. Implementations include novel types of paired-beam transponders that communicatively couple gateway terminals and user terminals in different spot beams. Some implementations also include loopback transponders that communicatively couple gateway terminals and user terminals in the same spot beam. The transponders can use similar components, can provide for flexible forward-link and return-link spectrum allocation, and/or can provide other features. Certain embodiments further include support for utility gateway terminal service and/or redundancy (e.g., active spares) for one or more active components.
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公开(公告)号：US20230396327A1
公开(公告)日：2023-12-07
申请号：US18453192
申请日：2023-08-21
申请人： Viasat, Inc.
发明人： Aaron Mendelsohn , Donald Runyon
CPC分类号： H04B7/18515 , H01Q1/288 , H01Q3/02 , H01Q3/18 , H01Q19/17 , H01Q25/007 , H04B7/2041
摘要： The described features generally relate to adjusting a native antenna pattern of a satellite to adapt communications via the satellite. For example, a communications satellite may include an antenna having a feed array assembly, a reflector, and a linear actuator coupled between the feed array assembly and the reflector. The feed array assembly may have a plurality of feeds for communicating signals associated with a communications service, and the reflector may be configured to reflect the signals transmitted between the feed array assembly and one or more target devices. The linear actuator may have an adjustable length, or otherwise provide an adjustable position between the feed array assembly and the reflector. By adjusting the position of the feed array assembly relative to the reflector, the communications satellite may provide a communications service according to a plurality of native antenna patterns.
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