Title :
New low-loss SAW filter using internal floating electrode reflection types of single-phase unidirectional transducer
Author :
Yamanouchi, K. ; Furuyashiki, H.
Author_Institution :
Tohoku University, Research Institute of Electrical Communication, Sendai, Japan
Abstract :
A new single-phase unidirectional transducer utilising the difference between excitation and reflection positions caused by the floating electrodes of open and short metal strips inserted into the interdigital transducer within a half wavelength is described.
Keywords :
crystal filters; passive filters; surface acoustic wave devices; ultrasonic transducers; interdigital transducer; internal floating electrode; low-loss SAW filter; metal strips; single-phase unidirectional transducer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840672
