Development and capabilities of SAW technology in Brazil

Author

Sharif, Mohammed Anwar

Author_Institution

Centro de Pesquisa e Desenvolvimento, Campinas, Brazil

fYear

1991

fDate

8-11 Dec 1991

Firstpage

189

Abstract

A brief historical background on surface acoustic wave (SAW) activities in Brazil is presented. Since 1982 various types of first-generation SAW devices, such as filters, delay lines, resonator stabilized oscillators, delay line VCOs and a SAW convolver, have been developed. The results of some of these devices are presented. Presently, second-generation devices, such as unidirectional transducers, resonator coupled filters, and piezoelectric composites, are being developed. Medium- and long-term plans are outlined. Production of small quantities in conjunction with a firm involved in thin-film technology will shortly begin. Prospects for a Brazilian market for SAW devices are discussed

Keywords

reviews; surface acoustic wave devices; Brazilian market; SAW technology; VCOs; convolver; delay lines; filters; first-generation SAW devices; historical background; piezoelectric composites; resonator coupled filters; resonator stabilized oscillators; review; second-generation devices; surface acoustic wave; unidirectional transducers; Acoustic transducers; Acoustic waves; Convolvers; Delay lines; Oscillators; Piezoelectric devices; Piezoelectric transducers; Resonator filters; Surface acoustic wave devices; Surface acoustic waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1991. Proceedings., IEEE 1991

Conference_Location

Orlando, FL

Type

conf

DOI

10.1109/ULTSYM.1991.234153

Filename

234153