Variable scattering device
    2.
    发明授权
    Variable scattering device 失效
    可变散射装置

    公开(公告)号:US06628239B1

    公开(公告)日:2003-09-30

    申请号:US10142746

    申请日:2002-05-10

    IPC分类号: H01Q1500

    CPC分类号: H01Q15/148

    摘要: A variable scattering device comprising a object which may be an antenna, a load impedance which is optimal and a switch which connects the scattering object to the load impedance. By using the switch to switch the load impedance in and out of the connection with the scattering object a large dynamic range for a fluctuating scattered signal may be achieved.

    摘要翻译: 一种可变散射装置,包括可以是天线的物体,最佳的负载阻抗和将散射物体连接到负载阻抗的开关。 通过使用开关将负载阻抗切换到与散射物体的连接中,可以实现波动散射信号的大的动态范围。

    Broadband passive moving target simulator
    3.
    发明授权
    Broadband passive moving target simulator 失效
    宽带被动移动目标模拟器

    公开(公告)号:US06559790B1

    公开(公告)日:2003-05-06

    申请号:US07563137

    申请日:1990-08-03

    IPC分类号: H01Q1500

    CPC分类号: H01Q15/18 G01S7/38 G01S13/75

    摘要: The invention is a radar decoy which electronically simulates objects by generating radar detectable signals over the entire microwave frequency range. The simulator includes a series of tuned, spaced diode networks for generating carrier suppressed doppler side bands. Each diode network operates at a single, different frequency. The diode networks are enclosed by a corner reflector which modulates the amplitude and the phase of an impinging radar signal. The diode networks are controlled by a switching network which turns the diodes on and off at a desire frequency to produce a doppler frequency shift and thereby simulate moving objects.

    摘要翻译: 本发明是通过在整个微波频率范围内产生雷达可检测信号来电子地模拟对象的雷达诱饵。 模拟器包括一系列调谐间隔二极管网络,用于产生载波抑制多普勒侧频带。 每个二极管网络以单个不同的频率工作。 二极管网络由角反射器包围,该角反射器调制入射雷达信号的幅度和相位。 二极管网络由开关网络控制,开关网络以期望频率打开和关闭二极管,以产生多普勒频移,从而模拟移动物体。

    Emergency passive radar locating device
    4.
    发明授权
    Emergency passive radar locating device 失效
    应急无源雷达定位装置

    公开(公告)号:US06300893B1

    公开(公告)日:2001-10-09

    申请号:US09536505

    申请日:2000-03-27

    IPC分类号: H01Q1500

    CPC分类号: H01Q1/081 H01Q15/20

    摘要: An emergency passive radar locating device for use by missing persons or craft to enhance their survivability in a search and rescue operation. The emergency passive radar locating device comprises an array of eight radar corner reflectors. Each corner reflector of the emergency passive radar locating device has three radar signal reflective surfaces which are mutually perpendicular. When fully inflated the emergency passive radar locating device is spherical in shape with three mutually perpendicular toroidal flotation rings.

    摘要翻译: 一种应急无源雷达定位装置,用于由失踪人员或手段提高其在搜救行动中的生存能力。 应急无源雷达定位装置包括八个雷达角反射器阵列。 应急无源雷达定位装置的每个角反射器具有三个相互垂直的雷达信号反射面。 当完全充气时,应急无源雷达定位装置是具有三个相互垂直的环形浮选环的球形。

    Radar reflector apparatus
    5.
    发明授权
    Radar reflector apparatus 失效
    雷达反射装置

    公开(公告)号:US06784825B1

    公开(公告)日:2004-08-31

    申请号:US10409556

    申请日:2003-04-08

    IPC分类号: H01Q1500

    CPC分类号: H01Q15/162

    摘要: There is provided a radar reflector apparatus that is mounted in a lifeboat or a small rescue boat or in a floating buoy used for salvage or search practice, or is used by itself independently, to serve as a radar wave reflector of a search radar. The radar reflector apparatus has a simple structure, and is folded when not in use, and when used, is unfolded automatically when dropped by a marine vessel or aircraft or the like.

    摘要翻译: 提供了一种安装在救生艇或小型救援艇或用于救助或搜索练习的浮动浮标中或独立使用的雷达反射器装置,用作搜索雷达的雷达波反射器。 雷达反射器装置具有简单的结构,并且在不使用时被折叠,并且当使用时,在被船舶或飞行器等等掉落时自动展开。

    Reflector circuit
    6.
    发明授权
    Reflector circuit 有权
    反射器电路

    公开(公告)号:US06456225B1

    公开(公告)日:2002-09-24

    申请号:US09674119

    申请日:2001-01-03

    申请人: Ian J Forster

    发明人: Ian J Forster

    IPC分类号: H01Q1500

    摘要: A reflector circuit is provided which responds to illuminating radiation with corresponding output radiation of increased magnitude relative to the illuminating radiation, while also providing a frequency selective limiting characteristic. The circuit comprises an antenna for receiving the illuminating radiation and emitting the corresponding output radiation, a delay line providing a frequency selective limiting and signal storage characteristic and an amplifier assembly. The antenna provides an input signal upon receipt of the illuminating radiation, a portion of which is amplified, frequency selectively filtered and then stored for a period after which it is emitted as the output radiation from the circuit. Switches are incorporated and are operable to counteract spontaneous oscillation within the circuit.

    摘要翻译: 提供反射器电路,其响应于照射辐射,相对于照明辐射具有相应的输出辐射幅度,同时还提供频率选择性限制特性。 电路包括用于接收照明辐射并发射相应的输出辐射的天线,提供频率选择性限制和信号存储特性的延迟线和放大器组件。 该天线在接收到照射辐射时提供输入信号,其一部分被放大,频率选择性滤波,然后被存储一段时间,之后作为来自电路的输出辐射被发射。 开关被并入并且可操作以抵消电路内的自发振荡。

    Artificial magnetic conductor system and method for manufacturing
    7.
    发明授权
    Artificial magnetic conductor system and method for manufacturing 有权
    人造磁导体系及其制造方法

    公开(公告)号:US06411261B1

    公开(公告)日:2002-06-25

    申请号:US09845011

    申请日:2001-04-27

    申请人: James D. Lilly

    发明人: James D. Lilly

    IPC分类号: H01Q1500

    CPC分类号: H01Q15/008

    摘要: The invention provides an artificial magnetic conductor (AMC) system and method for manufacturing. The AMC has a post plane with posts and slots. The posts are operatively disposed adjacent to conductive shapes on one or more frequency selective surfaces. The posts formably extend from the post plane.

    摘要翻译: 本发明提供一种人造磁导体(AMC)系统及其制造方法。 AMC有一个岗位和插槽。 柱在一个或多个频率选择表面上可操作地设置成与导电形状相邻。 这些柱子可以从后置平面延伸出来。

    Frequency selective surface
    8.
    发明授权
    Frequency selective surface 失效
    频率选择性表面

    公开(公告)号:US06218978B1

    公开(公告)日:2001-04-17

    申请号:US08477122

    申请日:1995-06-22

    IPC分类号: H01Q1500

    CPC分类号: H01Q15/0026

    摘要: A frequency selective surface includes at least one frequency selective layer (1) made up of an array of electrically conductive elements (2, 2a, 2b), at least one frequency selective layer (3) having an array of non-conductive apertures (4) therethrough overlaying the element layer (1) and a dielectric layer separating the two layers (1, 3). The element layer (1) is complementary in plan view to the aperture layer (3). The element layer (1) and the aperture layer (3) are rotated through 90 degrees in plan with respect to each other and substantially parallel to one another and the element array and the aperture array have the same periodicity.

    摘要翻译: 频率选择表面包括由导电元件阵列(2,2a,2b)组成的至少一个频率选择层(1),至少一个频率选择层(3),具有非导电孔(4 ),覆盖元件层(1)和分离两层(1,3)的介电层。 元件层(1)在平面图中与孔层(3)互补。 元件层(1)和开口层(3)相对于彼此平面旋转90度并且基本上彼此平行,并且元件阵列和孔径阵列具有相同的周期性。