发明名称 |
REACTANCE FILTER COMPRISING ACOUSTIC WAVES RESONATORS |
摘要 |
A reactance filter comprising first and second impedance elements arranged in a ladder-type structure is proposed where each impedance element comprises a resonator based on a piezoelectric material. Using different piezoelectric materials for first and second impedance elements provides a reactance filter having a large bandwidth and a passband with one sharp filter skirt. |
申请公布号 |
WO2014139590(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
WO2013EP55439 |
申请日期 |
2013.03.15 |
申请人 |
EPCOS AG |
发明人 |
DURNER, RALPH;CHALLA, RAVI;TILL, WOLFGANG;ALEH, LOSEU |
分类号 |
H03H9/02;H03H9/54;H03H9/60;H03H9/64 |
主分类号 |
H03H9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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