HYDROACOUSTICS
ANNUAL JOURNAL
START NEW VOL 20 SEARCH STATISTICS PAS - GDANSK DIVISION

Reflective Array Compressor With Etched Grooves

pp. 205-208, vol. 1, 1997

Andrzej Milewski
Tele and Radio Research Institute, Warsaw, Poland
Akademia Techniczno Rolnicza, Bydgoszcz, Poland

Igor S. Mitrofanov
Avangard-Elionica Co. St. Petersburg, St. Petersburg, Russia

Mariusz Tupaj
Tele and Radio Research Institute, Warsaw, Poland

Sylwester Gawor
Tele and Radio Research Institute, Warsaw, Poland

Key words:

Abstract: Most surface wave filters use interdigital transducers on piezoelectric substates to produce chirp filters. Alternate type of filter use controlled reflection of surface waves from surface gratings. The second type (RAC - Reflective Array Compressor) are free of spurious signal and second order effects, and in large time-bandwith application are better than filter based on interdigital transduces. Designing method, technology and practical results of RAC filter with two 90 degree reflections are presented.

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© Polish Acoustical Society - Gdansk Department, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported. (CC BY-NC-SA 3.0)