Events Calendar

Integrated Systems Seminar Series (Cancelled)

Speaker: Prof. Amir Mortazawi, University of Michigan

Talk Title: Frequency Agile Circuits Based on Thin Film Ferroelectrics

Abstract: This talk concentrates on the development of frequency agile circuits based on thin film ferroelectrics. Central to this effort is the use of barium strontium titanate (BST) which is a low loss, high dielectric constant and non-linear dielectric material. The electric field dependence of BST permittivity allows fabrication of tunable RF and microwave devices and components. Applications of BST based varactors for the design of adaptive matching circuits and linearized power amplifiers will be discussed. Another important characteristic of such materials is their dc electric field induced piezoelectric and electrostrictive effects. These properties can be utilized to design intrinsically switchable film bulk acoustic wave resonators (FBARs) and FBAR filters. By eliminating the switching devices used in conventional filter banks, ferroelectric based filters provide reduced size and power consumption necessary for the design of low power multi-standard radios. Recent results on the development of intrinsically switchable resonators and filters will be presented.

Biography: Prof. Amir Mortazawi received the Ph.D. degree in electrical engineering from The University of Texas at Austin, in 1990.
He is a currently a Professor of electrical engineering with The University of Michigan at Ann Arbor. His research interests include millimeter-wave circuits, phased arrays, power amplifiers, ferroelectric thin film based devices and frequency-agile microwave circuits.
Prof. Mortazawi was the Editor-in-Chief of the IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES from 2006-2010. He is a member of the IEEE Microwave Theory and Techniques Society (IEEE MTT-S) Administrative Committee (AdCom). He also served as Associate Editor for the IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (1998–2001), IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES (2005). Mortazawi is a Fellow of IEEE.


Host: Prof. Hossein Hashemi, Prof. Mahta Moghaddam, Prof. Mike Chen

More Info: http://mhi.usc.edu/activities/integrated-systems/

Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248

Audiences: Everyone Is Invited

Contact: Hossein Hashemi

Event Link: http://mhi.usc.edu/activities/integrated-systems/