Title :
New rigorous treatment of leaky SAWs and its application to high-performance filters used in mobile pocket phones
Author :
Hikita, U. ; Isobe, A. ; Sumioka, A. ; Matsuura, N. ; Okazaki, K.
fDate :
Oct. 31 1994-Nov. 3 1994
Abstract :
Leaky-SAW IDTs formed on 36° YX-LiTaO3, and 41° and 64° YX-LiNbO3 are theoretically analyzed, providing a new equivalent circuit. Fundamental experiments show fairly good agreement between theoretical and experimental results. New high-performance SAW filters using this equivalent circuit satisfy all the specifications for cellular pocket phones, incorporating the characteristics of a SAW antenna duplexer also proposed recently
Keywords :
UHF filters; cellular radio; cordless telephone systems; equivalent circuits; integral equations; interdigital transducers; surface acoustic wave filters; surface acoustic wave transducers; transmission line theory; 36° YX-LiTaO3; 41° YX-LiNbO3; 64° YX-LiNbO3; LiNbO3; LiTaO3; SAW filters; cellular pocket phones; equivalent circuit; high-performance filters; leaky SAW IDTs; Equivalent circuits; Integral equations; Interdigital transducers; Land mobile radio cellular systems; Leaky waves; Surface acoustic wave filters; Surface acoustic wave transducers; Transmission line theory; UHF filters; UHF radio communication;
Conference_Titel :
Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Conference_Location :
Cannes, France
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1994.401581
