Title :
Technique for low-loss and wideband surface acoustic wave filters
Author_Institution :
Dept. of Electron., Beijing Univ., China
fDate :
10/26/2000 12:00:00 AM
Abstract :
A ring surface acoustic wave filter on a high electromechanical coupling coefficient substrate is demonstrated. The insertion loss is 1.9 dB and the 3 dB fractional bandwidth is 30%. The filter also shows linear phase characteristics and low-passband ripples. The insertion loss is the lowest reported with such a wide bandwidth
Keywords :
acoustic wave absorption; band-pass filters; surface acoustic wave filters; 1.9 dB; 3 dB; fractional bandwidth; high electromechanical coupling coefficient substrate; insertion loss; linear phase characteristics; low-loss; low-passband ripples; ring surface acoustic wave filter; surface acoustic wave filters; wide bandwidth; wideband;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001305
