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公开(公告)号:WO2020051459A1
公开(公告)日:2020-03-12
申请号:PCT/US2019/049963
申请日:2019-09-06
申请人: VIASAT, INC.
发明人: GIMERSKY, Martin
摘要: Antenna feed chains and methods are disclosed. An antenna feed chain, include a feed horn having a first cross-polarization performance over a solid angle of interest and a frequency band of interest and a polarizer having a second cross-polarization performance over the solid angle of interest and the frequency band of interest. The polarizer is coupled to the feed horn. The first cross-polarization performance of the feed horn compensates for the second cross-polarization performance of the polarizer over the solid angle of interest and the frequency band of interest.
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公开(公告)号:WO2019086524A1
公开(公告)日:2019-05-09
申请号:PCT/EP2018/079841
申请日:2018-10-31
IPC分类号: G01F23/284 , H01Q1/22 , H01Q19/08 , H01Q13/02
CPC分类号: G01F23/284 , H01Q1/225 , H01Q13/02 , H01Q13/0283 , H01Q19/08
摘要: A radar level gauge including a wave guiding structure and a cavity formed inside the wave guiding structure, and a dielectric filling member (120) arranged at least partly within said cavity. The dielectric filling member includes a main body (121) formed of a polymer material, at least one 5 microwave absorbing element (130) formed of a modified polymer material providing a microwave attenuation of at least 1 dB/centimeter at an operating frequency of the radar level gauge, the modified polymer material being obtained by modifying said polymer material with a filler material, wherein the at least one microwave absorbing element (130) is integrally formed with said 10 main body by sintering.
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3.
公开(公告)号:WO2018106474A1
公开(公告)日:2018-06-14
申请号:PCT/US2017/063395
申请日:2017-11-28
发明人: HENRY, Paul Shala , BARNICKEL, Donald J. , BARZEGAR, Farhad , BENNETT, Robert , GERSZBERG, Irwin , WILLIS, III, Thomas M.
CPC分类号: H01Q9/0485 , H01Q1/2291 , H01Q3/22 , H01Q3/245 , H01Q13/02 , H01Q13/24 , H01Q15/24 , H01Q19/08 , H01Q25/007
摘要: In accordance with one or more embodiments, an antenna system includes a dielectric antenna having a feed-point, wherein the dielectric antenna is a single antenna having a plurality of antenna beam patterns. At least one cable having a plurality of conductorless dielectric cores is coupled to the feed-point of the dielectric antenna, each of the plurality of conductorless dielectric cores corresponding to one of the plurality of antenna beam patterns. A frequency selective launcher generates electromagnetic waves and couples the electromagnetic waves to a selected one of the plurality of conductorless dielectric cores, the selected one of the plurality of conductorless dielectric cores corresponding to a selected one of the plurality of antenna beam patterns.
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公开(公告)号:WO2017065898A1
公开(公告)日:2017-04-20
申请号:PCT/US2016/050345
申请日:2016-09-06
发明人: BARZEGAR, Farhad , HENRY, Paul Shala , BARNICKEL, Donald J. , BENNETT, Robert , GERSZBERG, Irwin , KAFKA, Henry , WILLIS III, Thomas M.
CPC分类号: H04W16/28 , H01P1/16 , H01P5/08 , H01Q3/26 , H01Q13/24 , H01Q19/08 , H04B3/52 , H04B7/0617 , H04W84/042
摘要: Aspects of the subject disclosure may include, for example, a method for receiving a request to steer wireless signals generated by a plurality of dielectric antennas, and adjusting, by the controller, a plurality of adjustable delays coupled to a transceiver to adjust an orientation of wireless signals received or generated by the plurality of dielectric antennas, each of the plurality of dielectric antennas comprising a feed point coupled to a different one of the plurality of adjustable delays, the transceiver facilitating reception or transmission of electromagnetic waves propagating via a different one of the feed points of the plurality of dielectric antennas along corresponding dielectric feedlines without an electrical return path. Other embodiments are disclosed.
摘要翻译: 本发明的各方面可以包括例如用于接收转向由多个电介质天线生成的无线信号的请求的方法,以及由控制器调整多个可调节延迟耦合的方法 到收发器以调整由所述多个电介质天线接收或生成的无线信号的取向,所述多个电介质天线中的每一个包括耦合到所述多个可调节延迟中不同的一个的馈电点,所述收发器促进 电磁波通过多个电介质天线中的不同的馈电点沿着相应的电介质馈线传播而没有电回路。 其他实施例被公开。 p>
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公开(公告)号:WO2011087538A2
公开(公告)日:2011-07-21
申请号:PCT/US2010053292
申请日:2010-10-20
申请人: LOCKHEED CORP , LIER ERIC
发明人: LIER ERIC
IPC分类号: H01Q19/08
摘要: A multiple beam reflector antenna includes at least one reflector, a plurality of feed horns for feeding the at least one reflector, and a metamaterial lens interposed between the plurality of feed horns and the at least one reflector. The metamaterial lens may provide an overlapping element distribution from at least two feed horns of the plurality of feed horns. In one embodiment, the metamaterial lens has an index of refraction between about zero and about one.
摘要翻译: 多光束反射器天线包括至少一个反射器,用于馈送至少一个反射器的多个馈电喇叭,以及插入在所述多个馈电喇叭和所述至少一个反射器之间的超材料透镜。 超材料透镜可以提供来自多个馈电喇叭的至少两个馈电喇叭的重叠元件分布。 在一个实施例中,超材料透镜具有在约零和约1之间的折射率。
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6.
公开(公告)号:WO02050954A2
公开(公告)日:2002-06-27
申请号:PCT/CA2001/001842
申请日:2001-12-19
IPC分类号: G01F23/284 , H01Q13/02 , H01Q15/02 , H01Q19/08
CPC分类号: G01F23/284 , H01Q13/02 , H01Q15/02 , H01Q19/08
摘要: A microwave horn antenna structure suitable for use in time of flight ranging systems and level measurement instruments. The horn antenna comprises a high gain antenna with a small aperture. The horn antenna includes a dielectric lens for focussing and directing transmitted electromagnetic energy to the surface of a material, e.g. liquid, held in a container. The electromagnetic energy reflected from the surface of the material are received by the horn antenna and converted in an electrical signal. The electrical signal is processed to determine the level of the material held in the container.
摘要翻译: 适用于飞行测距系统和液位测量仪器的微波喇叭天线结构。 喇叭天线包括具有小孔径的高增益天线。 喇叭天线包括介电透镜,用于将透射的电磁能聚焦并引导到材料的表面,例如, 液体,保持在容器中。 从材料表面反射的电磁能被喇叭天线接收并转换为电信号。 处理电信号以确定容纳在容器中的材料的水平。
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公开(公告)号:WO98054788A1
公开(公告)日:1998-12-03
申请号:PCT/DE1998/000615
申请日:1998-03-03
CPC分类号: H01Q19/062 , H01Q1/007 , H01Q1/42 , H01Q15/08
摘要: The invention relates to an antenna (6) for transmission of high frequency signals in a confined space (3, 4), the emission cone (5) being determined by a dielectric lens (12) around the primary transmitter (13), which dielectric lens (13) is comprised of an internal shell (9) adjusted to said space and an external hemispherical shell (10). Preferably, the antenna (6) is used in the base station (1) of a telecommunication system, whereby said base station (1) and several mobile stations (2) communicate with each other by means of radio signals.
摘要翻译: 它是在密闭的空间辐射的高频信号的天线(6)(3,4)提出,其中,所述发射锥(5)由一介质透镜(12)到所述主散热器(13)被确定,并且其中所述介质透镜( 12)由适合于内壳(9)和一个半球形外壳(10)的空间。 天线(6),优选使用在基站(1)中使用的通信系统的,基站(1),并通过无线电信号的多个移动台(2)的通信。
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公开(公告)号:WO2021110103A1
公开(公告)日:2021-06-10
申请号:PCT/CN2020/133639
申请日:2020-12-03
发明人: VINIT,
IPC分类号: H01Q19/08
摘要: The application provides methods and system for directing radio frequency rays to a RF antenna. The method comprises: receiving RF rays at an at least one RF lens and an at least one reflector; monitoring at least one first parameter by at least one sensor; receiving, by a processor, said first parameter from said sensor; determining, by the processor, at least one second parameter based on at least the received said first parameter; receiving, by a motor, the at least one second parameter from the processor and automatically causing a change in a configuration of at least one of the at least one RF lens and at least one reflector, based on said at least one second parameter, to direct said RF rays to the RF antenna.
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公开(公告)号:WO2018200604A1
公开(公告)日:2018-11-01
申请号:PCT/US2018/029253
申请日:2018-04-25
发明人: ROSS, Mitchell, A.
摘要: A multiple overlapping layer wireless network system for providing coverage in a multiple-office or business environment with multiple APs, and an improved method of designing and installing these multiple layers of wireless networks. Multiple overlapping wireless networks (i.e., multiple layers) are superimposed in the same area, and offset from each other according to their geometry. This results in a multiple wireless network installation with sufficient signal coverage in all areas for all networks with minimal inter-AP interference, segregated traffic, and multiple connections for each wireless network to one or more wired networks, thereby reducing the possibility of a single point of failure.
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公开(公告)号:WO2018106454A1
公开(公告)日:2018-06-14
申请号:PCT/US2017/063103
申请日:2017-11-22
发明人: HENRY, Paul Shala , BARNICKEL, Donald J. , BARZEGAR, Farhad , BENNETT, Robert , GERSZBERG, Irwin , WILLIS, Thomas M., III
摘要: In accordance with one or more embodiments, an antenna system includes a dielectric antenna having a feed point, wherein the dielectric antenna is a single antenna. At least one cable having a plurality of conductorless dielectric cores is coupled to the feed point of the dielectric antenna, wherein electromagnetic waves that are guided by differing ones of the plurality of conductorless dielectric cores to the dielectric antenna result in differing ones of a plurality of antenna beam patterns.
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