公开(公告)号：US09634399B1

公开(公告)日：2017-04-25

申请号：US14077433

申请日：2013-11-12

申请人： L-3 Communications Corp.

发明人： Johnny M. Harris ,  Osama S. Haddadin ,  Zachary C. Bagley ,  Brandon G. Walsh ,  Jonathan C. Landon

IPC分类号： H01Q15/14 ,  H01Q19/10

CPC分类号： H01Q19/13

摘要： An antenna system can impart orbital angular momentum (OAM) to an incident electromagnetic (EM) signal from a feed antenna. The antenna system can include a partial OAM antenna with a reflective surface that has only part of a full OAM shaped surface. The antenna system can thus reflect the incident EM signal as a partial OAM beam rather than a full OAM beam.

公开(公告)号：US09350084B1

公开(公告)日：2016-05-24

申请号：US14077493

申请日：2013-11-12

申请人： L-3 Communications Corp.

发明人： Johnny M. Harris ,  Osama S. Haddadin ,  Zachary C. Bagley ,  Brandon G. Walsh ,  Jonathan C. Landon

IPC分类号： H04L5/04 ,  H01Q19/10 ,  H01Q19/06 ,  H01Q3/14 ,  H01Q3/20

CPC分类号： H01Q19/10 ,  H01Q3/14 ,  H01Q3/20 ,  H01Q19/06

摘要： Electromagnetic (EM) feeds can illuminate a standard primary reflective antenna with a plurality of feed beams each having a different orbital angular momentum (OAM) or polarization. The reflective antenna, which can be a non-OAM antenna, can reflect the feed beams and thereby produce a composite OAM transmission comprising each of the feed beams. A non-OAM primary antenna can thus transmit a plurality of OAM feed beams as a composite OAM transmission.

摘要翻译： 电磁（EM）馈电可以用多个具有不同轨道角动量（OAM）或极化的馈送光束来照亮标准主反射天线。 可以是非OAM天线的反射天线可以反射进给光束，从而产生包括每个馈送光束的复合OAM传输。 因此，非OAM主天线可以作为复合OAM传输传输多个OAM馈送波束。

公开(公告)号：US09031151B1

公开(公告)日：2015-05-12

申请号：US14272213

申请日：2014-05-07

申请人： L-3 Communications Corp.

发明人： Johnny M. Harris ,  Zachary C. Bagley ,  Brandon G. Walsh ,  Jonathan C. Landon

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04B7/08 ,  H04B7/06

CPC分类号： H04B7/0617 ,  H01Q3/26 ,  H04L5/04

摘要： A transmit antenna or antennas can be configured to transmit a composite orbital angular momentum (OAM) radio frequency (RF) beam comprising a plurality of individual OAM RF signals each having a different OAM mode. An array of antennas for receiving and resolving the composite OAM beam into the individual OAM signals can be located entirely within a relatively small sector of a far field pattern of the composite OAM beam. A processing module connected to the antennas of the receive array can resolve the composite OAM beam into its individual OAM signals using angular resolution. The transmit antenna can transmit the individual OAM signals—and thus the composite OAM beam—as full OAM signals or partial-beam OAM signals.

摘要翻译： 发射天线或天线可以被配置为发射包括多个具有不同OAM模式的多个单独OAM RF信号的复合轨道角动量（OAM）射频（RF）波束。 用于将复合OAM波束接收和分解成各个OAM信号的天线阵列可以完全位于复合OAM波束的远场图案的相对小的扇区内。 连接到接收阵列的天线的处理模块可以使用角度分辨率将复合OAM波束分解成其各自的OAM信号。 发射天线可以发射各个OAM信号，从而将复合OAM波束作为完整的OAM信号或部分波束的OAM信号传输。