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1. 发明授权

EP1467485B1 Surface acoustic wave device and communication apparatus using the same 有权转让
标题翻译：一种声表面波装置和通信装置具有相同的
公开(公告)号：EP1467485B1
公开(公告)日：2008-08-27
申请号：EP04290950.7
申请日：2004-04-09
申请人： MURATA MANUFACTURING CO., LTD.
发明人： Ouchi Minefumi c/o Intellectual Property Depart. , Nakahashi, Norihiko c/o Intellectual Property Dep.
IPC分类号： H03H9/64
CPC分类号： H03H9/0061 , H03H9/0057 , H03H9/0085 , H03H9/14582 , H03H9/14588

2. 发明公开

EP1467485A3 Surface acoustic wave device and communication apparatus using the same 有权转让
标题翻译：一种声表面波装置和通信装置具有相同的
公开(公告)号：EP1467485A3
公开(公告)日：2005-09-07
申请号：EP04290950.7
申请日：2004-04-09
申请人： MURATA MANUFACTURING CO., LTD.
发明人： Ouchi Minefumi c/o Intellectual Property Depart. , Nakahashi, Norihiko c/o Intellectual Property Dep.
IPC分类号： H03H9/64
CPC分类号： H03H9/0061 , H03H9/0057 , H03H9/0085 , H03H9/14582 , H03H9/14588
摘要： A surface acoustic wave device includes first stage longitudinally coupled resonator type surface acoustic wave elements (501,503) and second stage longitudinally coupled resonator type surface acoustic wave elements (502,504) that are cascaded to each other and are arranged on a piezoelectric substrate. Each of the first and second stage longitudinally coupled resonator type surface acoustic wave elements (501-504) is provided with at least three IDTs (507-518) arranged along the direction of transmission of a surface acoustic wave. The central IDT (508,511,514,517) of each of the longitudinally coupled resonator type surface acoustic wave elements includes narrow pitch electrode finger portions (519-534). At least one of the number and the pitch of the electrode fingers of the narrow pitch electrode finger portions of the first stage longitudinally coupled resonator type surface acoustic wave elements (501,503) is set to be different from that of the second stage longitudinally coupled resonator type surface acoustic wave elements (502,504).

3. 发明公开

EP1467485A2 Surface acoustic wave device and communication apparatus using the same 有权转让
标题翻译： AkustischeOberflächenwellenvorrichtungundKommunikationsgerätmit derselben
公开(公告)号：EP1467485A2
公开(公告)日：2004-10-13
申请号：EP04290950.7
申请日：2004-04-09
申请人： Murata Manufacturing Co., Ltd.
发明人： Ouchi Minefumi c/o Intellectual Property Depart. , Nakahashi, Norihiko c/o Intellectual Property Dep.
IPC分类号： H03H9/64
CPC分类号： H03H9/0061 , H03H9/0057 , H03H9/0085 , H03H9/14582 , H03H9/14588
摘要： A surface acoustic wave device includes first stage longitudinally coupled resonator type surface acoustic wave elements (501,503) and second stage longitudinally coupled resonator type surface acoustic wave elements (502,504) that are cascaded to each other and are arranged on a piezoelectric substrate. Each of the first and second stage longitudinally coupled resonator type surface acoustic wave elements (501-504) is provided with at least three IDTs (507-518) arranged along the direction of transmission of a surface acoustic wave. The central IDT (508,511,514,517) of each of the longitudinally coupled resonator type surface acoustic wave elements includes narrow pitch electrode finger portions (519-534). At least one of the number and the pitch of the electrode fingers of the narrow pitch electrode finger portions of the first stage longitudinally coupled resonator type surface acoustic wave elements (501,503) is set to be different from that of the second stage longitudinally coupled resonator type surface acoustic wave elements (502,504).
摘要翻译：表面声波装置包括彼此级联并布置在压电基板上的第一级纵向耦合谐振器型表面声波元件（501,503）和第二级纵向耦合谐振器型表面声波元件（502,504）。第一级和第二级纵向耦合谐振器型声表面波元件（501-504）中的每一个设置有沿着声表面波的传输方向布置的至少三个IDT（507-518）。每个纵向耦合的谐振器型表面声波元件的中心IDT（508,511,514,517）包括窄间距电极指部分（519-534）。第一级纵向耦合谐振器型表面声波元件（501,503）的窄间距电极指部分的电极指的数量和间距中的至少一个被设置为与第二级纵向耦合谐振器型声表面波元件（502,504）。

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