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.

Volume

1

fYear

1994

fDate

Oct. 31 1994-Nov. 3 1994

Firstpage

207

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE

Conference_Location

Cannes, France

Print_ISBN

0-7803-2012-3

Type

conf

DOI

10.1109/ULTSYM.1994.401581

Filename

401581