Improved Tunable Performance of high Q-factor BaxSr1-xTiO3 Film Bulk Acoustic Wave Resonators

• Improved tunable performance of high Q-factor BaxSr1-xTiO3 film bulk acoustic wave resonators (FBARs) achieved by varying Ba concentration. The Ba0.5Sr0.5TiO3 FBARs reveal tunability of series resonance frequency up to 2.4%, electromechanical coupling coefficient up to 7.5% and rather high figure of merit, Qf1300 GHz. Correlations between the measured electroacoustic parameters are analyzed using the theory of dc bias induced piezoelectric effect in paraelectric phase ferroelectrics.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

tunable FBAR

microwave film bulk acoustic resonator

Ferroelectric

multiferroic

Publikations- och innehållstyp

kon (ämneskategori)

ref (ämneskategori)