Title :
LiNbO3-quartz-LiNbO3 composite delay line with zero linear temperature coefficient of delay
Author_Institution :
Hughes Research Laboratories, Malibu, USA
Abstract :
A bonded composite consisting of LiNbO3-quartz-LiNbO3 is shown to have zero linear temperature coefficient of delay (t.c.d.) for acoustic surface waves. The quartz is a rotated y-cut crystal with propagation along the x direction providing a small negative linear t.c.d. that offsets the positive contribution from the surface-wave propagation in the LiNbO3.
Keywords :
acoustic surface wave devices; lithium compounds; ultrasonic delay lines; LiNbO3/quartz/LiNbO3 structure; acoustic surface wave devices; ultrasonic delay lines; zero linear temperature coefficient;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19740084
