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    • 2. 发明授权
    • Antenna duplexer with high GPS suppression
    • 具有高GPS抑制功能的天线双工器
    • US08981872B2
    • 2015-03-17
    • US13122816
    • 2009-10-15
    • Helmut KlammPeter Selmeier
    • Helmut KlammPeter Selmeier
    • H03H9/70H03H9/72
    • H03H9/706H03H9/725
    • An antenna duplexer includes a transmission filter which operates in a transmission frequency band and has a transmission filter output. A reception filter operates in a reception frequency band and has a reception filter output. An antenna connection is connected to the transmission filter output and a matching element is connected between the antenna connection and the reception filter input. The circuit formed from the transmission filter, reception filter and matching element attenuates transmission signals in a frequency band whose frequencies f are in the interval 0.50*f0
    • 天线双工器包括在发送频带中操作并具有发送滤波器输出的发送滤波器。 接收滤波器在接收频带中工作并具有接收滤波器输出。 天线连接连接到发射滤波器输出,匹配元件连接在天线连接和接收滤波器输入端之间。 由发送滤波器,接收滤波器和匹配元件形成的电路衰减频率f在区间0.50 * f0 <= f <= 0.75 * f0的频带内的发送信号,其中f0是接收频率的中频 带。