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1.发明公开Filter combining surface acoustic wave resonators 失效过氧化物酶（AkustischeOberflächenwellenresonatorenkombinierendes）过滤器。
公开(公告)号：EP0269064A2
公开(公告)日：1988-06-01
申请号：EP87117300.1
申请日：1987-11-24
CPC分类号： H03H9/6479 , H03H9/02755 , H03H9/14597 , H03H9/6443 , H03H9/6463
摘要： This invention relates to the structure of a band-pass or band-rejection filter by combining a plurality of one-port surface acoustic wave resonators (421 to 433 or Q₁ to Q₄) whose interdigital electrode fingers are disposed on a piezoelectric substrate (10). The filter combining surface acoustic wave resonators of the present invention consists of a series circuit of the one-port surface acoustic wave resonators (421 to 433 or 70 to 72) disposed on a piezoelectric substrate (10) for transmitting elastic surface wave and a plurality of circuit elements containing capacitance elements (431 to 433 or 70 to 72), and one-port surface acoustic wave resonators (421 to 433 or 70 to 72) disposed between the electrodes of the plurality of circuit elements and the common ground. This structure can accomplish a filter having a low loss, high power handling capability and high design freedom of rejection-and passing-band.
摘要翻译： 本发明涉及通过将交叉指状电极指配置在压电基板（10）上的多个单端口声表面波谐振器（421至433或Q1至Q4）组合而成的带通滤波器或带阻滤波器的结构， 。 本发明的组合弹性表面波谐振器的滤波器由布置在用于传播弹性表面波的压电基片（10）上的单孔表面声波谐振器（421至433或70至72）的串联电路和多个 包括电容元件（431至433或70至72）的电路元件和设置在多个电路元件的电极和公共地之间的单端口声表面波谐振器（421至433或70至72）。 该结构可以实现具有低损耗，高功率处理能力和高排斥和通带的设计自由度的滤波器。
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公开(公告)号：EP0269064B1
公开(公告)日：1996-07-17
申请号：EP87117300.1
申请日：1987-11-24
CPC分类号： H03H9/6479 , H03H9/02755 , H03H9/14597 , H03H9/6443 , H03H9/6463
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公开(公告)号：EP0269064A3
公开(公告)日：1989-08-23
申请号：EP87117300.1
申请日：1987-11-24
CPC分类号： H03H9/6479 , H03H9/02755 , H03H9/14597 , H03H9/6443 , H03H9/6463
摘要： This invention relates to the structure of a band-pass or band-rejection filter by combining a plurality of one-port surface acoustic wave resonators (421 to 433 or Q₁ to Q₄) whose interdigital electrode fingers are disposed on a piezoelectric substrate (10). The filter combining surface acoustic wave resonators of the present invention consists of a series circuit of the one-port surface acoustic wave resonators (421 to 433 or 70 to 72) disposed on a piezoelectric substrate (10) for transmitting elastic surface wave and a plurality of circuit elements containing capacitance elements (431 to 433 or 70 to 72), and one-port surface acoustic wave resonators (421 to 433 or 70 to 72) disposed between the electrodes of the plurality of circuit elements and the common ground. This structure can accomplish a filter having a low loss, high power handling capability and high design freedom of rejection-and passing-band.
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