Title :
High frequency acoustic plate mode device employing interdigital transducers
Author_Institution :
Royal Signals & Radar Establishment, Malvern, UK
Abstract :
If a SAW or SSBW device is operated above its normal frequency the interdigital transducers usually launch and receive a complex spectrum of plate modes. By contrast we show here that if the substrate orientation and geometry are chosen correctly it is possible to design a `clean¿ plate mode response at a frequency up to at least six times that of the corresponding SAW device.
Keywords :
piezoelectric transducers; surface acoustic wave devices; ultrasonic transducers; SAW device; SSBW device; `clean´ plate mode response; high frequency acoustic plate mode device; interdigital transducers; plate mode spectrum; single wideband wave device; substrate geometry; substrate orientation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810571
