专利检索 ap:("Koninklijke Philips Electronics N.V.") AND inv:"LOBEEK, Jan-Willem" 第 1 页

1.

发明公开
DUPLEXER AND METHOD OF ISOLATING AN RX-BAND AND A TX-BAND 有权
标题翻译：双面打印和隔离程序RX带内和带Tx

公开(公告)号：EP1565984A1

公开(公告)日：2005-08-24

申请号：EP03758528.8

申请日：2003-10-31

申请人： Koninklijke Philips Electronics N.V.

发明人： LOBEEK, Jan-Willem

IPC分类号： H03H9/58 , H03H9/64

CPC分类号： H03H9/706 , H03H7/18

摘要： A duplexer (1) with two band-pass filters (5, 6) comprising film bulk acoustic wave resonators (FBAR) (8, 9, 10, 11, 12, 13) has an extra antiresonant circuit in order to block the transmission signal. It has an extra resonant circuit in order to allow the desired receive signal to pass. The antiresonant circuit comprises the first FBAR (11) and a parallel inductor (14). The resonant circuit comprises the first FBAR (11) and a series inductor (7).