发明名称 HIGH-FREQUENCY COMPOUND SWITCH MODULE AND COMMUNICATION TERMINAL USING IT
摘要 <p>A high-frequency compound switch module which comprises a first communication system comprising a switch unit for switching the connection of a signal from an antenna to one of the transmission/reception circuits of the first communication system based on a signal from a control terminal, a filter for filtering out a first reception signal provided on a reception circuit side, and a first phase shift line provided between the filter and the switch unit, and a second communication system comprising a second phase shift line provided between the switch unit and the first phase shift line, and a branching filter provided in series with the second phase shift line, for branching a signal from the second phase shift line to a second transmission/reception signal, whereby at least reception processing by the first communication system is enabled during transmission/reception by the second communication system.</p>
申请公布号 WO2003036806(P1) 申请公布日期 2003.05.01
申请号 JP2002010992 申请日期 2002.10.23
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