HIGH-FREQUENCY COMPOUND SWITCH MODULE AND COMMUNICATION TERMINAL USING IT
摘要
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.
申请公布号
WO03036806(A1)
申请公布日期
2003.05.01
申请号
WO2002JP10992
申请日期
2002.10.23
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;SATOH, YUKI;ISHIZAKI, TOSHIO;YASUHO, TAKEO