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公开(公告)号：US08981872B2
公开(公告)日：2015-03-17
申请号：US13122816
申请日：2009-10-15
申请人： Helmut Klamm , Peter Selmeier
发明人： Helmut Klamm , Peter Selmeier
摘要： 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
摘要翻译： 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。
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公开(公告)号：US20110248794A1
公开(公告)日：2011-10-13
申请号：US13122816
申请日：2009-10-15
申请人： Helmut Klamm , Peter Selmeier
发明人： Helmut Klamm , Peter Selmeier
摘要： 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
摘要翻译： 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。
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公开(公告)号：US20090009263A1
公开(公告)日：2009-01-08
申请号：US11817936
申请日：2006-01-05
IPC分类号： H03H9/72
CPC分类号： H03H9/6483 , H03H9/725
摘要： A duplexer includes an antenna terminal, a transmit filter, and a receive filter. The receive filter includes a first sub-filter that includes one or more resonators, and a second sub-filter including a double mode surface acoustic wave (DMS) filter. The second sub-filter is downstream of the first sub-filter relative to the antenna.
摘要翻译： 双工器包括天线端子，发射滤波器和接收滤波器。 接收滤波器包括包括一个或多个谐振器的第一子滤波器和包括双模声表面波（DMS）滤波器的第二子滤波器。 第二子滤波器相对于天线在第一子滤波器的下游。
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