发明名称 |
Surface acoustic wave reflector in surface acoustic wave filter for portable telephone, has free surface areas without perturbation elements are formed in array of perturbation elements on piezoelectric substrate |
摘要 |
Several perturbation elements (2,3) are arranged on piezoelectric substrate (1). In the array of perturbation elements, several free surface areas without perturbation elements are formed.
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申请公布号 |
DE10039620(A1) |
申请公布日期 |
2001.04.26 |
申请号 |
DE20001039620 |
申请日期 |
2000.08.09 |
申请人 |
FUJITSU LTD., KAWASAKI;FUJITSU MEDIA DEVICES LTD., SUZAKA |
发明人 |
TSUTSUMI, JUN;MATSUDA, TAKASHI;IKATA, OSAMU;SATOH, YOSHIO |
分类号 |
H03H9/25;H03H9/02;H03H9/145;H03H9/64;(IPC1-7):H03H9/25 |
主分类号 |
H03H9/25 |
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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