WIDE-BAND AND LOW-LOSS UNIDIRECTIONAL SAW FILTER.

被引：0
|
作者：
Yamada, Jun [1 ]
Fujita, Yuuji [1 ]
Yuhara, Akitsuna [1 ]
机构：
[1] Hitachi Ltd, Yokohama, Jpn, Hitachi Ltd, Yokohama, Jpn
来源：
Japanese Journal of Applied Physics, Supplement | 1985年 / 25 suppl 25-1卷
关键词：
ACOUSTIC SURFACE WAVE DEVICES - ACOUSTIC TRANSDUCERS;
D O I：
暂无
中图分类号：
TB5 [声学工程]; TN912 [电声技术和语音信号处理];
学科分类号：
0702 ; 070206 ; 081002 ;
摘要：
An improved group-type unidirectional SAW transducer has been proposed which reduces the geometrical phase difference between sending and reflecting electrodes. A 90 degree phase shifter delays the phase of the reflection side electrodes. In consequence, both the wider frequency band width for triple transit suppression and low insertion loss can be achieved.
引用
收藏
页码：151 / 153
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