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    • 1. 发明申请
    • WiFi antenna system and method of operation
    • WiFi天线系统和操作方法
    • US20080181146A1
    • 2008-07-31
    • US11700793
    • 2007-01-31
    • Minh Doan
    • Minh Doan
    • H04B7/00
    • H04B1/44H01Q1/2291
    • A WiFi antenna system includes a WiFi amplifier having a reception antenna and a separate transmission antenna for respectively receiving from and transmitting to WiFi devices such as laptop computers and the like. A logic circuit controls transmission and reception of signals via the antennas. Preferably, a splitter-combiner splits signals from a local area network (LAN) and a signal level comparator determines whether the LAN signals are transmission signals which should be transmitted via the transmission antenna. If so, the logic circuit controls the power levels of the two antennas to that effect. Preferably, the transmission antenna is normally at a standby power level while the reception antenna is at a high gain operational power level. If a signal is to be transmitted via the transmission antenna, the logic circuit increases the transmission power level to a maximum allowable and decreases the reception power level to a standby level.
    • WiFi天线系统包括具有接收天线的WiFi放大器和用于分别从诸如膝上型计算机等的WiFi设备接收和发送的单独的发送天线。 逻辑电路通过天线控制信号的发送和接收。 优选地,分离器组合器分离来自局域网(LAN)的信号,并且信号电平比较器确定LAN信号是否是应当经由发送天线发送的发送信号。 如果是这样,逻辑电路就控制两个天线的功率电平。 优选地,发射天线通常处于待机功率电平,而接收天线处于高增益操作功率电平。 如果要通过发送天线发送信号,则逻辑电路将发送功率电平提高到允许的最大值,并且将接收功率电平降低到待机电平。