Capacitively coupled dc voltage switchable barium strontium titanate solidly mounted resonator filter

Author

Saddik, George N. ; York, Robert A.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of California Santa Barbara, Santa Barbara, CA, USA

fYear

2011

fDate

5-10 June 2011

Firstpage

1

Lastpage

4

Abstract

A dc voltage switchable barium strontium titanate solidly mounted bulk acoustic wave capacitively coupled resonators filter has been demonstrated for the first time. The filter consists of two switchable bulk acoustic wave solidly mounted resonators coupled with a high-Q barium strontium titanate capacitor. The resonators have a measured loaded series and parallel quality factors of 135 and 87 in the on-state (30V), respectively. The electromechanical coupling coefficient of the resonators is 6.34 % in the on-state (30V). The insertion loss and return loss of the filter is -3.66 dB and -13.74 dB, respectively.

Keywords

barium compounds; bulk acoustic wave devices; capacitors; resonator filters; resonators; strontium compounds; BaSrTiO₃; capacitively coupled DC voltage switchable mounted resonator filter; electromechanical coupling coefficient; high-Q capacitor; insertion loss; loss -13.74 dB; loss -3.66 dB; parallel quality factors; return loss; switchable bulk acoustic wave solidly mounted resonator; voltage 30 V; Acoustic waves; Electrodes; Microwave filters; Q factor; Resonator filters; Strontium; Acoustic devices; barium compounds; bulk acoustic wave devices; ferroelectric films; piezoelectric devices; resonator filters; voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International

Conference_Location

Baltimore, MD

ISSN

0149-645X

Print_ISBN

978-1-61284-754-2

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2011.5972937

Filename

5972937