Wide-Band and Low-Loss Unidirectional SAW Filter

Autor: Yamada, Jum, Fujita, Yuuji, Yuhara, Akitsuna
Zdroj: Japanese Journal of Applied Physics; January 1986, Vol. 25 Issue: 1 p151-151, 1p
Abstrakt: An improved group-type unidirectional SAW transducer has been proposed which reduces the geometrical phase difference between sending and reflecting electrodes. A 90° 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.
Databáze: Supplemental Index