MEMS based tunable antenna for wireless reception and transmission
    1.
    发明授权
    MEMS based tunable antenna for wireless reception and transmission 有权
    基于MEMS的可调谐天线,用于无线接收和传输

    公开(公告)号:US07167135B2

    公开(公告)日:2007-01-23

    申请号:US10877456

    申请日:2004-06-25

    IPC分类号: H01Q9/00

    摘要: An antenna for a wireless device may be kept dynamically tuned to a desired center frequency to compensate for detuning which may be caused by environmental influences. A sensor provides a feedback signal to a controller to select an appropriate capacitance value from a variable capacitor to tune the antenna for the wireless device. The variable capacitor may comprise a plurality of fixed capacitors and MEMS switches arranged in parallel or may comprise a variable MEMS capacitor having a fixed lower plate and a flexible upper plate.

    摘要翻译: 可以将用于无线设备的天线保持动态地调谐到期望的中心频率以补偿可能由环境影响引起的失谐。 传感器向控制器提供反馈信号以从可变电容器选择适当的电容值,以调谐无线设备的天线。 可变电容器可以包括并联布置的多个固定电容器和MEMS开关,或者可以包括具有固定下板和柔性上板的可变MEMS电容器。