Title :
Band Reject Filter in BAW Technology
Author :
Mourot, L. ; Bar, P. ; Bila, S. ; Parat, Guy ; Ancey, Pascal ; Carpentier, Jean-François
Author_Institution :
XLIMUMR 6172, Univ. de Limoges, Limoges
Abstract :
This document shows the feasibility of a band reject filter in Bulk Acoustic Wave (BAW) technology. This type of filter is usually composed of series and shunt resonators. We present two setups centred at 2.5 GHz which measurement is agreed with simulation for rejection band. Filters give a -20 dB rejection on a bandwidth greater than 60 MHz for each topology. The best measured filter achieves a -1.4 dB insertion loss in the passband with a 200 MHz bandwidth.
Keywords :
UHF filters; bulk acoustic wave devices; resonators; BAW technology; band reject filter; bandwidth 200 MHz; bulk acoustic wave technology; frequency 2.5 GHz; frequency 60 MHz; loss -1.4 dB; series resonators; shunt resonators; Acoustic waves; Band pass filters; Bandwidth; Frequency; Impedance; Insertion loss; Resonance; Resonator filters; Surface acoustic waves; Topology;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751460
