发明名称 Ladder-type piezoelectric filters
摘要 A ladder-type piezoelectric filter comprising a series-parallel combination of piezoelectric ceramic resonators and a plurality of connector elements each disposed on each side of each resonator, wherein an insulating elastic member is inserted between each resonator and each connector element to provide an excellent impact resistance and group delay frequency characteristics.
申请公布号 US4398162(A) 申请公布日期 1983.08.09
申请号 US19810311292 申请日期 1981.10.13
申请人 NGK SPARK PLUG CO., LTD. 发明人 NAGAI, TAKESUMI
分类号 H03H9/09;H03H9/10;H03H9/58;H03H9/60;(IPC1-7):H03H9/09;H03H9/13;H03H9/54;H03H9/52 主分类号 H03H9/09
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