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    • 1. 发明授权
    • Scanning directional antenna with lens and reflector assembly
    • 扫描具有透镜和反射器组件的定向天线
    • US06396448B1
    • 2002-05-28
    • US09638602
    • 2000-08-15
    • Kurt Alan ZimmermanJohn Elliott WannRobert Alan FreemanDonald Nelson Black, Jr.James Charles Marsik
    • Kurt Alan ZimmermanJohn Elliott WannRobert Alan FreemanDonald Nelson Black, Jr.James Charles Marsik
    • H01Q1906
    • H01Q3/16H01Q3/14H01Q3/20H01Q19/062
    • An antenna comprising a feed for delivering electromagnetic energy to a rotatable combination of a dielectric lens and a reflective surface. The combination of the dielectric lens and the reflective surface is placed proximate to and in front of an energy feed, such as a horn, to support the scanning of an antenna beam in response to rotation of the lens/reflective surface assembly. The lens typically comprises a dielectric material and the reflective surface can comprise a thin layer of material operable to reflect electromagnetic energy. For example, the lens can comprise a half-cylinder shape of dielectric material and the reflective surface can be applied to the flat portion of the half-cylindrical lens. Alternatively, the antenna can comprise two or more electromagnetic feeds and a cylindrical lens of dielectric material including a centrally-embedded, two-sided reflective surface. A positioning system can be used to rotate the combination of the lens and the reflective material proximate to and in front of the electromagnetic feed(s).
    • 一种天线,包括用于将电磁能量传递到电介质透镜和反射表面的可旋转组合的馈送器。 电介质透镜和反射表面的组合被放置在诸如喇叭的能量馈送附近和之前,以响应于透镜/反射表面组件的旋转而支撑天线波束的扫描。 透镜通常包括介电材料,并且反射表面可以包括可操作以反射电磁能的薄层材料。 例如,透镜可以包括半圆柱形的介电材料,并且反射表面可以被施加到半柱面透镜的平坦部分。 或者,天线可以包括两个或更多个电磁馈送和包括中心嵌入的双面反射表面的电介质材料的柱面透镜。 可以使用定位系统来旋转在电磁馈送附近和之前的透镜和反射材料的组合。
    • 2. 发明授权
    • Omnidirectional antenna for a computer system
    • 用于计算机系统的全向天线
    • US06642899B2
    • 2003-11-04
    • US09981107
    • 2001-10-17
    • Peter C. StricklandKurt Alan ZimmermanJohn Elliott WannThomas Steven Taylor
    • Peter C. StricklandKurt Alan ZimmermanJohn Elliott WannThomas Steven Taylor
    • H01Q1300
    • H01Q9/28H01Q1/007
    • An antenna assembly comprising a radiating element which passively receives a signal fed by a vertically-stacked pair of asymmetrically-shaped, conductive cone elements mounted below the radiating element. The cone elements are centrally fed by a coaxial cable input at a common junction formed the apex of each cone element. This antenna assembly provides a low-profile antenna to transmit and receive radio frequency (RF) energy with high gain and desirable antenna patterns for data transmission in an in-building, wireless local area network. The antenna assembly can be mounted in a standard ceiling or wall-mounted enclosure, with the low-profile antenna extending beneath the surface of a conductive enclosure cover that serves as the ground plane for the antenna element. This configuration achieves high antenna gain with a downtilt-beam, omnidirectional radiation pattern, which is highly desirable in an in-building wireless local area network (WLAN) application.
    • 一种天线组件,包括辐射元件,其被动地接收由安装在辐射元件下方的垂直堆叠的一对不对称形状的导电锥形元件馈送的信号。 锥形元件由同轴电缆输入端集中馈入,形成了每个锥形元件的顶点的公共接头处。 该天线组件提供了一种低调天线,用于以高增益和期望的天线方式传输和接收射频(RF)能量,用于建筑物内无线局域网中的数据传输。 天线组件可以安装在标准天花板或墙壁安装的外壳中,低调的天线延伸到用作天线元件的接地平面的导电外壳的表面下方。 这种配置通过下倾斜的全向辐射图实现了高天线增益,这在室内无线局域网(WLAN)应用中是非常需要的。