ECE Faculty Candidate Colloquium
Thursday ***Special Location and Time*** February 5 11:00 - 11:50 AM Kelley 1005 Reza Azadegan Ph.D. from University of Michigan Dephi Research Labs Miniaturized Antennas and Microwave Circuits for Wireless Integrated Microsystems The holy grail of the next generation of wireless systems, namely, the integration of the antenna with the rest of the transceiver circuitry on a single chip will never be realized unless the design methodologies for antenna miniaturization are emerged. Such emergence will revolutionize the way wireless systems are implemented since antennas impose stringent restrictions on the size and performance of wireless systems. Novel on-chip antennas will also find numerous applications in a wide range from implantable telemetry systems for biomedical applications to the disposable environmental micro-sensors for homeland security and RFID tracking and access control systems. With recent advances in solid state devices and MEMS technology, implementation of low-power high-performance miniaturized transmit and receive modules has become a reality for up to the millimeter wave frequencies; however, issues related to the design and fabrication of efficient, miniaturized, and easily integrable antennas have yet to be explored. Developing viable design methodologies for such miniaturized antennas and microwave systems is the focus of this presentation, in which a few miniaturization techniques leading to an order of magnitude size reduction are demonstrated. In order to alleviate the narrow bandwidth caused by miniaturization, a few techniques are introduced to enhance the bandwidth of the miniature antenna. Finally, the issues related to the integration of the antenna system to the generally high-impedance microelectronic subsystems are covered through proposing a high impedance antenna leading to systems with minimum power consumption. Biography: Reza Azadegan received the B.S. degree from Sharif University of Technology, Tehran, Iran, in 1996, the M.S degree form K.N.Toosi University of Technology, in 1998, and the Ph.D. degree in electrical engineering from The University of Michigan, Ann Arbor, in 2004 all in electrical engineering. From 1997 to 1999, he was with the Center for Computational Electromagnetic at Sharif University of Technology working on the design and optimization of reflector antennas using Genetic Algorithms. From 1999 to 2004, he was a Research Assistant with the Radiation Laboratory and the Center of Wireless Micro-System (WIMS) of the University of Michigan. He is the recipient of the 2001 IEEE APS Symposium student paper award held in Boston, MA for his paper on miniaturized slot antenna. In May of 2004, he joined Delphi Research Labs as a Senior Research Engineer, where he has been involved in the design of millimeter wave phased array antennas for collision avoidance radars, mobile satellite TV antenna arrays, and the application of meta-materials for antenna miniaturization. His research interests include antenna miniaturization, millimeter-wave radars, phased arrays, RF/Microwave circuits and high-impedance antennas.
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