Title :
Band-elimination filter employing surface-acoustic-wave resonators
Author :
Koyamada, Y. ; Ishihara, F. ; Yoshikawa, Shuhei
Author_Institution :
NTT, Musashino Electrical Communication Laboratory, Musashino, Japan
Abstract :
A surface-acoustic-wave (s.a.w.) band-elimination filter has been developed employing s.a.w. resonators composed of interdigital transducers with a large number of electrodes, exhibiting more than 80 dB stopband rejection with a passband attenuation of less than 1 dB.
Keywords :
acoustic resonators; acoustic surface wave devices; filters; acoustic surface wave resonators; band elimination filters; interdigital transducers; passband attenuation; stopband rejection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750082
