Title :
Aspects of modeling the frequency response of a two-port waveguide-coupled SAW resonator-filter
Author :
Campbell, C.K. ; Smith, Peter M. ; Edmonson, Peter J.
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
Abstract :
Coupling-of-modes-in-time and coupling-of-modes-in-space analyses are applied to the modeling of a two-port two-pole waveguide-coupled SAW resonator filter. Modeling is applied to a lumped equivalent circuit and a distributed circuit. While the accuracy of the coupling estimation dictates the exact mode-splitting and bandwidth, the ensuing computations can give a good representation of the amplitude and phase response, including the effect of degenerate transverse modes.<>
Keywords :
crystal resonators; frequency response; surface acoustic wave filters; SAW resonator-filter; amplitude response; bandwidth; coupling estimation; degenerate transverse modes; distributed circuit; frequency response; lumped equivalent circuit; mode-splitting; phase response; Acoustic signal processing; Bandwidth; Coupling circuits; Equivalent circuits; Frequency response; Geometry; Narrowband; Resonator filters; Surface acoustic waves; Telephony;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
