Surface Acoustic Wave (SAW) resonators are implemented by creating a planar resonant cavity, delimited by two distributed, rather than concentrated, mirrors, consisting of arrays of reflecting metal strips. SAW resonators permit to achieve higher frequencies than their bulk-wave acoustic counterparts with comparable spectral purity and very high Q, while, due to the planar nature, they result of small size and rugged construction. The basic SAW resonator operation, with emphasis on design parameters and device configuration, is presented. A complex simulation package for Computer-Aided Design of SAW resonators has been developed. Several resonators in the VHF-UHF frequency band have been designed and tested, exhibiting good agreement with the simulation forecast and state-of-the-art performances. This paper summarizes a three years work conducted under support of the Progetto Finaliz-zato MADESS, CNR.
Surface acoustic wave resonators
ROSELLI, Luca;
2008
Abstract
Surface Acoustic Wave (SAW) resonators are implemented by creating a planar resonant cavity, delimited by two distributed, rather than concentrated, mirrors, consisting of arrays of reflecting metal strips. SAW resonators permit to achieve higher frequencies than their bulk-wave acoustic counterparts with comparable spectral purity and very high Q, while, due to the planar nature, they result of small size and rugged construction. The basic SAW resonator operation, with emphasis on design parameters and device configuration, is presented. A complex simulation package for Computer-Aided Design of SAW resonators has been developed. Several resonators in the VHF-UHF frequency band have been designed and tested, exhibiting good agreement with the simulation forecast and state-of-the-art performances. This paper summarizes a three years work conducted under support of the Progetto Finaliz-zato MADESS, CNR.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
