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    • 8. 发明授权
    • Antenna configured for low frequency applications
    • 天线配置为低频应用
    • US07696932B2
    • 2010-04-13
    • US11675557
    • 2007-02-15
    • Laurent DesclosSebastian RowsonRowland JonesKi Soo Kim
    • Laurent DesclosSebastian RowsonRowland JonesKi Soo Kim
    • H01Q1/24
    • H01Q1/273H01Q1/243H01Q1/245H01Q9/42
    • An antenna configured for low frequency applications on a mobile device includes an antenna element coupled to a conductive structure which, in turn, is coupled to the user of the mobile device such that the user of the mobile device effectively becomes part of the antenna. The conductive structure can include, for example, the device housing being made from a conductive material, a conductive structure embedded inside the device housing, or conductive pads exposed in the device housing. The antenna element is electrically connected to the conductive structure and the user can be coupled to the conductive structure either through direct contact or through capacitive coupling. In addition, the antenna can include an active element configured to boost free space operation efficiency. The active element can include, for example, a low noise amplifier integrated onto a low noise amplifier board. The active element can be at least partially surrounded by a hollow support structure around which an antenna coil is wrapped, where the antenna coil is coupled to the active element. Furthermore, one or more antenna coils can be utilized either separately or in conjunction with the antenna for low frequency applications, where the one or more antenna coils can have integrated therein inductive components and/or active/switching elements that allow the one or more antenna coils to be tuned to a desired frequency.
    • 配置用于移动设备上的低频应用的天线包括耦合到导电结构的天线元件,该天线元件又连接到移动设备的用户,使得移动设备的用户有效地成为天线的一部分。 导电结构可以包括例如由导电材料制成的器件外壳,嵌入在器件外壳内部的导电结构,或暴露在器件外壳中的导电焊盘。 天线元件电连接到导电结构,用户可以通过直接接触或通过电容耦合而耦合到导电结构。 此外,天线可以包括被配置为提高自由空间操作效率的有源元件。 有源元件可以包括例如集成在低噪声放大器板上的低噪声放大器。 有源元件可以至少部分地被中空支撑结构所围绕,天线线圈围绕着该天线线圈被缠绕,其中天线线圈耦合到有源元件。 此外,一个或多个天线线圈可以单独地或与低频应用的天线一起使用,其中一个或多个天线线圈可以集成在其中的电感元件和/或允许一个或多个天线的有源/开关元件 线圈调谐到所需的频率。