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    • 1. 发明授权
    • Antenna arrangement
    • 天线布置
    • US6002370A
    • 1999-12-14
    • US131957
    • 1998-08-11
    • John Peter Bruce MckinnonAndrew Barrington ClaytonJohn Eric Barrett
    • John Peter Bruce MckinnonAndrew Barrington ClaytonJohn Eric Barrett
    • H01Q1/38H01Q9/04H01Q21/24H01Q1/50
    • H01Q9/0435H01Q1/38H01Q21/245
    • A radio frequency antenna arrangement for selective operation at orthogonal polarizations of electromagnetic radiation. The antenna arrangement comprises at least one radiating element, such as one or more antenna patches, each having a vertical polarization feed point and a horizontal polarization feed point. The arrangement also includes a vertical feeder circuit for coupling a radio frequency modulated electromagnetic signal to the vertical polarization feed point of the or each radiating element, a horizontal feeder circuit for coupling a radio frequency modulated electromagnetic signal to the horizontal polarization feed point of the or each radiating element and a terminating resistive load. A switch mechanism is provided for selectively coupling the electromagnetic signal to one of the horizontal feeder circuit or the vertical feeder circuit and for selectively coupling the load to the other of the horizontal feeder circuit or the vertical feeder circuit. In the first position of the switch the electromagnetic signal is coupled to the horizontal feeder circuit and the resistive load is coupled to the vertical feeder circuit and the antenna arrangement operates predominantly in the horizontal polarization. In the second position of the switch the electromagnetic signal is coupled to the vertical feeder circuit and the resistive load is coupled to the horizontal feeder circuit and the antenna arrangement operates predominantly in the vertical polarization. In a first embodiments of the invention the switch mechanism is located at the interface between two antenna housing parts and the required polarization is selected by mechanical alignment of the housing parts relative to each other. In a second embodiment of the invention the switch mechanism is integrated onto the feeder circuits.
    • 一种用于在电磁辐射的正交偏振下进行选择性操作的射频天线装置。 天线布置包括至少一个辐射元件,诸如一个或多个天线贴片,每个天线贴片具有垂直极化馈电点和水平极化馈电点。 该装置还包括用于将射频调制的电磁信号耦合到该辐射元件或每个辐射元件的垂直极化馈电点的垂直馈电电路,用于将射频调制电磁信号耦合到该或该辐射元件的垂直极化馈电点的水平极化馈电点的水平馈电电路, 每个辐射元件和终端电阻负载。 提供了一种开关机构,用于选择性地将电磁信号耦合到水平馈线电路或垂直馈电电路中的一个,并且用于选择性地将负载耦合到水平馈线电路或垂直馈线电路中的另一个。 在开关的第一位置,电磁信号耦合到水平馈电电路,并且电阻负载耦合到垂直馈电电路,并且天线装置主要以水平极化运行。 在开关的第二位置,电磁信号耦合到垂直馈电电路,并且电阻负载耦合到水平馈电电路,并且天线装置主要以垂直极化运行。 在本发明的第一实施例中,开关机构位于两个天线壳体部件之间的界面处,并且通过壳体部件相对于彼此的机械对准来选择所需的极化。 在本发明的第二实施例中,开关机构被集成到馈电电路上。
    • 2. 发明授权
    • Antenna arrangement
    • 天线布置
    • US6118405A
    • 2000-09-12
    • US131981
    • 1998-08-11
    • John Peter Bruce MckinnonIan Paul LlewelynPeter Glanville Gwynn
    • John Peter Bruce MckinnonIan Paul LlewelynPeter Glanville Gwynn
    • H01Q1/38H01Q13/18H01Q21/00H01Q21/06
    • H01Q13/18H01Q1/38H01Q21/0081H01Q21/065
    • A radio frequency antenna arrangement comprising an array of radiating elements, such as radiating antenna patches, which are co-located in a circuit, such as a microstrip circuit, with feeder elements which couple electromagnetic radiation to the radiating elements. The antenna arrangement has an electrically conductive backplate located behind the circuit, which acts as a groundplane and which is separated from the circuit by a dielectric layer. To reduce electromagnetic interference from the feeder elements which could disrupt the antenna pattern an electrically conductive screen is located directly in front of the feeder elements of the circuit but selectively exposes the array of radiating elements. The screen is spaced from the feeder elements and is not electrically connected to the backplate so that the screen, feeder elements and backplate do not form a triplate structure.
    • 一种射频天线装置,其包括辐射元件阵列,诸如辐射天线贴片,其共同位于诸如微带电路的电路中,其馈电元件将电磁辐射耦合到辐射元件。 天线布置具有位于电路后面的导电背板,其作为接地面并且通过介电层与电路分离。 为了减少来自馈电元件的电磁干扰,这可能破坏天线图案,导电屏幕直接位于电路的馈线元件的前面,但是选择性地暴露辐射元件阵列。 屏幕与馈线元件间隔开,并且不与背板电连接,使得屏幕,馈线元件和背板不形成三板结构。