Title :
Scattering analysis of two-port SAW resonators
Author :
Soluch, Waldemar
Author_Institution :
Inst. of Electron. Mater. Technol., Warsaw, Poland
fDate :
5/1/2001 12:00:00 AM
Abstract :
Linear equations derived from the scattering matrix approach to the two-port resonator were solved, and analytical expressions for the normalized SAW amplitudes were obtained. Asynchronous and synchronous resonators were analyzed numerically. It was shown that the output of the two-port resonator is a sum of two signals. In the case of the asynchronous resonator, these signals are in phase at a resonance frequency; for the synchronous resonator, they are in phase quadrature, which causes the higher insertion loss of the synchronous resonator.
Keywords :
S-matrix theory; interdigital transducers; surface acoustic wave resonators; surface acoustic wave transducers; IDT; asynchronous resonators; insertion loss; linear equations; phase quadrature; resonance frequency; scattering analysis; scattering matrix approach; synchronous resonators; two-port SAW resonators; Acoustic scattering; Electrodes; Equations; Insertion loss; Reflection; Resonance; Resonant frequency; Signal analysis; Surface acoustic waves; Transfer functions;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
