公开(公告)号：US10320085B1

公开(公告)日：2019-06-11

申请号：US14715500

申请日：2015-05-18

Applicant: LOCKHEED MARTIN CORPORATION

Inventor： Erik Lier ,  Matthew George Bray ,  Thomas Henry Hand ,  Bonnie Gean Martin

IPC: H01Q15/24 ,  H01Q19/10 ,  H01Q21/06

Abstract: A high efficiency short backfire antenna (SBFA) includes a cylindrical reflector and a feed structure. The conductive cylindrical reflector is configured to collect or to radiate electromagnetic waves. The cylindrical reflector has a reflector base and a reflector wall. The feed structure is electromagnetically coupled to the cylindrical reflector. The reflector wall includes a dielectric liner formed on an inside surface of the cylindrical reflector, and the dielectric liner is covered with a structured anisotropic impedance surface.

公开(公告)号：US20150123843A1

公开(公告)日：2015-05-07

申请号：US14073759

申请日：2013-11-06

Applicant: LOCKHEED MARTIN CORPORATION

Inventor： Erik LIER ,  Moh'd A. Hasan ,  Anthony Wykeham Jacomb-Hood ,  Matthew George Bray ,  Russell T. Baker

IPC: G01S19/21

CPC classification number: H04K3/228 ,  H04B7/18513 ,  H04B7/18515 ,  H04K2203/32

Abstract: A system for interference suppression onboard a satellite may include an antenna that is configured to receive uplink signals from a ground-coverage area and to generate a first signal. A spot-beam antenna may be configured to receive interference signals and to generate a second signal. A processor may be configured to receive the first signal from the antenna and the second signal from the spot-beam antenna and to perform a cross-correlation to generate a composite signal that includes a null at an interference frequency. The antenna may be a shaped reflector antenna and the spot-beam antenna may be a parabolic reflector antenna.

Abstract translation: 用于卫星上的干扰抑制的系统可以包括被配置为从地面覆盖区域接收上行链路信号并产生第一信号的天线。 点波束天线可以被配置为接收干扰信号并产生第二信号。 处理器可以被配置为从天线接收第一信号和从点波束天线接收第二信号，并且执行互相关以产生在干扰频率处包括零的复合信号。 天线可以是成形的反射器天线，并且点波束天线可以是抛物面反射器天线。

公开(公告)号：US09742522B2

公开(公告)日：2017-08-22

申请号：US14485242

申请日：2014-09-12

Applicant: LOCKHEED MARTIN CORPORATION

Inventor： Erik Lier ,  Anthony W. Jacomb-Hood ,  Matthew George Bray ,  Russell T. Baker

IPC: H04B7/185 ,  H01Q3/00 ,  G01S7/36 ,  H04K3/00

CPC classification number: H04K3/228 ,  H04K2203/32

Abstract: A system for interference suppression onboard a satellite includes a beamforming module that processes radio-frequency (RF) signals originated from a plurality of antenna elements of an array antenna to generate multiple analog signals. At least one of the analog signals is an anti-interference signal. Analog-to-digital converters convert the analog signals to a number of digital signals. A processing module processes the digital signals to generate a phase and amplitude control signal. A summation module generates one or more composite signals with reduced interference.