Design of UHF RFID Systems with the aid of Computational Electromagnetics
Dr. C. J. Reddy, President
EM Software & Systems (USA) Inc.
Al Fresco, Newport News

6:30 PM, Thursday, 19 February 2009

Please RSVP to or on line at www.acteva.com.

Though Radio Frequency Identification (RFID) systems have been in use for various applications in the past, currently they are gaining popularity due to their application to retail supply chain management systems. Compared to low-frequency (LF) and high-frequency (HF) RFID systems (which operate through near-field inductive coupling and thus have relatively short read range), ultra high frequency (UHF) RFID systems operate through farfield backscattering, have larger read range, and have been widely used in supply chain management and inventory control. However, very often the electromagnetic (EM) performance of the reader/tag systems could be significantly degraded due to the complex physical environments. With the aid of computational electromagnetic (CEM) tools, such situations can be analyzed and optimized to improve the performance of RFID systems. This talk presents options for the EM characterization of such systems with the aid of full wave or hybrid numerical methods. Analysis of RFID tags, readers, tag placement, tag/reader coupling, and tag/reader systems in complex environments will be addressed.

Biographical Sketch: Dr. Reddy is the President of EM Software & Systems (USA) Inc. At EMSS (USA), he is leading the marketing and support of commercial 3D electromagnetic software, FEKO in the US, Canada, Mexico and Central America. Dr. Reddy is also the President and Chief Technical Officer of Applied EM Inc, a small company specializing in computational electromagnetics, antenna design and development. At Applied EM, Dr. Reddy successfully led many Small Business Innovative Research (SBIR) projects from the US Department of Defense (DoD). In 1991, he was awarded NSERC Visiting Fellowship to conduct research at Communications Research Center, Ottawa, Canada. Later in 1993, he was awarded a National Research Council (USA)'s Research Associateship to conduct research in computational electromagnetics at NASA Langley Research Center, Hampton, Virginia.

Dr. Reddy worked as a Research Professor at Hampton University from 1995 to 2000, while conducting research at NASA Langley Research Center. During this time, he developed various FEM codes for electromagnetics. He also worked on design and simulation of antennas for automobiles and aircraft structures. Particularly development of his hybrid Finite Element Method/Method of Moments/ Geometrical Theory of Diffraction code for cavity backed aperture antenna analysis received Certificate of Recognition from NASA.

Dr. Reddy is a Senior Member of Institute of Electrical and Electronics Engineers (IEEE), USA. He is also a member of Applied Computational Electromagnetic Society. He has published more than 60 referred journal articles and conference papers so far.