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1. 发明申请

WO2018190794A1 COVERAGE AREA ADJUSTMENT TO ADAPT SATELLITE COMMUNICATIONS 审中-公开
公开(公告)号：WO2018190794A1
公开(公告)日：2018-10-18
申请号：PCT/US2017/026839
申请日：2017-04-10
申请人： VIASAT, INC.
发明人： MENDELSOHN, Aaron , RUNYON, Donald
IPC分类号： H01Q1/28 , H01Q3/02 , H01Q3/18 , H01Q3/20 , H01Q25/00 , H01Q19/17
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.

2. 发明申请

WO2016004001A1 SYSTEMS AND METHODS FOR POLARIZATION CONTROL 审中-公开
标题翻译：用于极化控制的系统和方法
公开(公告)号：WO2016004001A1
公开(公告)日：2016-01-07
申请号：PCT/US2015/038481
申请日：2015-06-30
申请人： VIASAT, INC.
发明人： RUNYON, Donald , PAREKH, Sharad
IPC分类号： H01Q1/28 , H01Q21/24
CPC分类号： H04B7/18513 , H01P1/173 , H01Q1/1264 , H01Q1/288 , H01Q1/421 , H01Q13/0258 , H01Q21/245
摘要： The described technology uses a dual circularly polarized panel antenna and equal amplitude variable phase control between the two circularly polarized components to achieve a rotatable linear polarization tracking system. An example antenna system includes a plurality of antenna elements that include a plurality of polarization transducers to generate a first signal component and a second signal component from a received wave. A polarization control network applies a phase difference based on an orientation of the linear polarization of the wave with respect to the antenna system between the signal components to generate adjusted signal components. The polarization control network combines the adjusted signal components to form a composite signal that corresponds to the linear polarization of the wave. Linearly polarized transmit and receive signals may be co-polarized or cross-polarized.
摘要翻译：所描述的技术使用双圆偏振面板天线和两个圆偏振分量之间的等幅度可变相位控制，以实现可旋转的线性偏振跟踪系统。示例性天线系统包括多个天线元件，其包括多个偏振换能器以从接收波产生第一信号分量和第二信号分量。偏振控制网络基于相对于信号分量之间的天线系统的波的线性偏振的取向来施加相位差，以产生经调整的信号分量。偏振控制网络将调整的信号分量组合以形成对应于波的线偏振的复合信号。线偏振的发射和接收信号可以是共极化或交叉极化的。

3. 发明申请

WO2017124004A1 TECHNIQUES FOR EMPLOYING ACCESS NODE CLUSTERS IN END-TO-END BEAMFORMING 审中-公开
标题翻译：在端到端波束中使用接入节点簇的技术
公开(公告)号：WO2017124004A1
公开(公告)日：2017-07-20
申请号：PCT/US2017/013518
申请日：2017-01-13
申请人： VIASAT, INC.
发明人： CRONIN, Christopher , MILLER, Mark , DANKBERG, Mark , BUER, Kenneth , RUNYON, Donald
IPC分类号： H04B7/185 , H04B7/204
CPC分类号： H04B7/2041 , H04B7/18513 , H04B7/18517
摘要： Techniques for end-to-end beamforming in a wireless communication system using access node clusters that are distinct from a user coverage area are described. Forward link end-to-end beamforming may involve multiple access nodes in one or more access node clusters transmitting signals that, when relayed by multiple transmit/receive signals paths within an end-to-end-relay, form user beams in the user coverage area. Return link end-to-end beamforming includes applying beamforming weights to signals transmitted by user terminals and relayed by multiple transmit/receive signals paths in the end-to-end relay to the access nodes to form return beam signals associated with return user beams. The access node clusters may overlap or be outside the user coverage area, and multiple access node clusters may serve one or more user coverage areas selectively or concurrently. Multiple feeder-link frequency bands may be employed by the same or different access node clusters.
摘要翻译：描述了使用与用户覆盖区域不同的接入节点簇的无线通信系统中端到端波束成形的技术。前向链路端到端波束成形可涉及一个或多个接入节点簇中的多个接入节点，其发送在端到端中继内由多个发射/接收信号路径中继时形成用户覆盖中的用户波束的信号区。返回链路端到端波束成形包括将波束成形权重应用于由用户终端发送的信号并且由端到端中继中的多个发射/接收信号路径中继到接入节点以形成与返回用户波束相关联的返回波束信号。接入节点群集可以重叠或在用户覆盖区域之外，并且多个接入节点群集可以选择性地或同时地服务一个或多个用户覆盖区域。多个馈线链路频带可以由相同或不同的接入节点集群采用。

4. 发明申请

WO2016054324A1 MULTI-BEAM BI-FOCAL SHAPED REFLECTOR ANTENNA FOR CONCURRENT COMMUNICATION WITH MULTIPLE NON-COLLOCATED GEOSTATIONARY SATELLITES AND ASSOCIATED METHOD 审中-公开
标题翻译：多通道多通道地球物理卫星多相波双反射天线与相关方法
公开(公告)号：WO2016054324A1
公开(公告)日：2016-04-07
申请号：PCT/US2015/053414
申请日：2015-10-01
申请人： VIASAT, INC.
发明人： RUNYON, Donald , PAREKH, Sharad
IPC分类号： H01Q1/08 , H01Q1/12 , H01Q1/28 , H01Q15/16 , H01Q25/00 , H01Q5/45 , H04B7/185 , H04H40/90 , H01Q3/18 , H01Q15/14 , H01Q19/13 , H01Q3/08
CPC分类号： H01Q5/45 , H01Q1/084 , H01Q1/1228 , H01Q1/125 , H01Q1/1257 , H01Q1/1264 , H01Q1/288 , H01Q3/08 , H01Q3/18 , H01Q15/14 , H01Q19/132 , H01Q25/007 , H04B7/185 , H04H40/90
摘要： In one embodiment, a multi-beam antenna is described. The multi-beam antenna includes a reflector having a single reflector surface defining a first focal region and a second focal region. A first feed group is located within the first focal region. The first feed group includes a first feed oriented relative to the reflector define a first beam pointed in a first direction. The multi-beam antenna further includes a fixed attachment mechanism attaching the first feed group to the reflector such that a position of the first feed group is fixed relative to the reflector. The multi-beam antenna further includes a second feed group located within the second focal region. The second feed group includes a second feed oriented relative to the reflector to define a second beam pointed in a second direction. The multi-beam antenna further includes an adjustable attachment mechanism attaching the second feed group to the reflector in an adjustable relation to the reflector, whereby a difference between the first direction and the second direction is adjustable.
摘要翻译：在一个实施例中，描述了多波束天线。多波束天线包括具有限定第一焦点区域和第二焦点区域的单个反射器表面的反射器。第一饲料组位于第一焦点区域内。第一馈送组包括相对于反射器定向的第一馈送器限定指向第一方向的第一光束。所述多光束天线还包括将所述第一馈送组连接到所述反射器的固定附接机构，使得所述第一馈电组的位置相对于所述反射器固定。多波束天线还包括位于第二焦点区域内的第二馈送组。第二馈送组包括相对于反射器定向的第二馈电，以限定指向第二方向的第二光束。多光束天线还包括可调节的附接机构，其以与反射器可调节的关系将第二馈送组附接到反射器，由此第一方向和第二方向之间的差是可调节的。

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