Title :
Electrode sizing for guided wave resonator above a Bragg mirror
Author :
Kone, Issiaka ; Reinhardt, Alexandre ; Domingue, Frédéric ; Dubus, Bertrand ; Buchaillot, Lionel ; Casset, Fabrice ; Carpentier, Jean François ; Aïd, Marc
Abstract :
This paper describes how to reduce spurious resonances which can take place in a resonator using guided waves above a Bragg mirror. These parasitics arise from overtone resonances as well as from higher order modes also excited by electrodes having inappropriate dimensions. In this paper, the influence of period and metalization ratio on the harmonic admittance of a resonator is studied.
Keywords :
electrodes; resonators; Bragg mirror; electrode sizing; guided wave resonator; harmonic admittance; overtone resonance; spurious resonance; Acoustic propagation; Acoustic waves; Admittance; Electrodes; Frequency; Mirrors; Piezoelectric devices; Piezoelectric transducers; Resonance; Surface acoustic wave devices;
Conference_Titel :
Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International
Conference_Location :
Besancon
Print_ISBN :
978-1-4244-3511-1
Electronic_ISBN :
1075-6787
DOI :
10.1109/FREQ.2009.5168318
