Broadband SAW-convolver, using dispersive IDTs with capacitive weighting

• Published in: 1996 IEEE Ultrasonics Symposium. Proceedings Vol. 1; pp. 77 - 79 vol.1
• Main Authors: Boritko, S.V., Grigorievskii, V.I., Kmita, A.M.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 1996
• Subjects: Acoustic beams; Acoustic diffraction; Acoustic distortion; Apertures; Convolvers; Dispersion; Electronic circuits; Frequency response; Passband; Surface acoustic waves

The problem of development of SAW convolvers with a wide relative passband and linear phase is decided by use of IDTs with capacitive weighting. A degenerate convolver with central frequency 95 MHz, relative passband of 36% and time of integration 20 /spl mu/s was investigated. Dispersive IDTs with...