Title :
Diffraction effects from very narrow surface wave transducers
Abstract :
Measurements and calculations of the surface acoustic wave (SAW) beam profile versus distance from very narrow interdigital transducer apertures are made in y-z LiNbO3 which exhibits strong beam steeringalong the z-axis. It is shown that even for these few-wavelengths long apertures the beam steering strongly limits the acoustic diffraction.
Keywords :
Acoustic beams; Acoustic diffraction; Acoustic transducers; Acoustic waves; Anisotropic magnetoresistance; Apertures; Beam steering; Green´s function methods; Surface acoustic waves; Surface waves;
Journal_Title :
Sonics and Ultrasonics, IEEE Transactions on
DOI :
10.1109/T-SU.1978.30985
