Title :
A review of SAW resonator filter technology
Author_Institution :
RF Monolithics, Dallas, TX, USA
Abstract :
A compendium of design approaches that have proved to be successful in large-scale production of surface acoustic wave (SAW) resonators is provided. Many resonator configurations are presented and typical performance characteristics are illustrated. New developments are discussed. These include techniques for increasing coupled-resonator bandwidths<0.5% and weighting reflector banks to suppress close-in ripple. The trend towards high-coupling designs that do not require matching is also discussed, as are possible applications of new single-phase unidirectional transducer (SPUDT) technologies
Keywords :
acoustic resonators; crystal resonators; reviews; surface acoustic wave filters; ultrasonic transducers; SAW resonator filter technology; SPUDT; close-in ripple suppression; coupled-resonator bandwidths; design approaches; high-coupling designs; large-scale production; review; single-phase unidirectional transducer; weighting reflector banks; Costs; Electrodes; Matched filters; Production; Radio frequency; Resonant frequency; Resonator filters; SAW filters; Surface acoustic waves; Temperature;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.276068
