Title :
Physics-based large-signal modeling of intrinsically tunable and switchable ferroelectric FBARs
Author :
Seungku Lee ; Lee, Victor ; Sis, Seyit Ahmet ; Mortazawi, Amir
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
An improved large-signal model for intrinsically tunable and switchable ferroelectric FBARs is presented. Ferroelectric FBARs based on multifunctional materials such as BST possess electric-field-tunable permittivity and electric-field-induced piezoelectricity. These properties are promising for the design of a new class of high-power reconfigurable RF devices for frequency-agile radios. Availability of a simple yet accurate large-signal model is indispensable when designing such devices. In this paper, an improved physics-based large-signal model is developed. Modeling results show great agreement with measurement results.
Keywords :
bulk acoustic wave devices; circuit tuning; ferroelectric devices; ferroelectric materials; permittivity; piezoelectricity; electric field induced piezoelectricity; electric field tunable permittivity; film bulk acoustic resonator; frequency agile radio; large-signal modeling; switchable ferroelectric FBAR; Barium; Capacitors; Equations; Frequency measurement; Indexes; Mathematical model; Switches; Barium strontium titanate (BST); ferroelectric materials; film bulk acoustic resonators (FBARs); large signal modeling; nonlinear modeling;
Conference_Titel :
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location :
Tampa, FL
DOI :
10.1109/MWSYM.2014.6848610
