Title :
Large band-pass BAW filter for space applications
Author :
Chatras, M. ; Catherinot, L. ; Bila, S. ; Cros, D. ; Monfraix, P. ; Esatgerie, L. ; Baron, T. ; Ballandras, S.
Author_Institution :
XLIM, Univ. of Limoges Limoges, Limoges, France
Abstract :
A resonator using shear waves of lithium niobate is used in this paper to achieve large fractional bandwidth BAW filter. Electromechanical couplings in the 20 - 50 % range are obtained for the shear waves of a thin layer of Lithium Niobate suspended on a silicon substrate. By this way a filter with fractional bandwidth over 20% has been designed for space applications.
Keywords :
acoustic resonator filters; aerospace instrumentation; band-pass filters; bulk acoustic wave devices; lithium compounds; resonator filters; Electromechanical couplings; fractional bandwidth BAW filter; large band-pass BAW filter; lithium niobate shear waves; silicon substrate; space application; Acoustic waves; Band pass filters; Couplings; Lithium niobate; Microwave filters; Resonator filters; Silicon;
Conference_Titel :
Frequency Control and the European Frequency and Time Forum (FCS), 2011 Joint Conference of the IEEE International
Conference_Location :
San Fransisco, CA
Print_ISBN :
978-1-61284-111-3
DOI :
10.1109/FCS.2011.5977748
