Title :
Design and compensation of nonequidistantly sampled SAW transducers
Author :
Ruppel, C.C.W. ; Kappacher, C. ; Reindl, L. ; Visitini, G.
Author_Institution :
Siemens AG, Munich, West Germany
Abstract :
A noniterative algorithm for the design of nonequidistantly sampled interdigital transducers (IDTs) is presented. This method allows the precise design of IDTs with a given impulse response. Deviations according to the impulse model are less than 0.1 dB within the passband. The authors present the design and the compensation of second-order effects of a delay line with two chirped and apodized IDTs and present measurements of this filter
Keywords :
acoustic delay lines; acoustic transducers; surface acoustic wave devices; ultrasonic transducers; 0.1 dB; chirped apodized SAW transducers; compensation; delay line; design; nonequidistantly sampled SAW transducers; noniterative algorithm; second-order effects; Algorithm design and analysis; Band pass filters; Chirp; Finite impulse response filter; Fourier transforms; Frequency response; Passband; Sampling methods; Surface acoustic waves; Transducers;
Conference_Titel :
Ultrasonics Symposium, 1989. Proceedings., IEEE 1989
Conference_Location :
Montreal, Que.
DOI :
10.1109/ULTSYM.1989.66953
