SEECS Colloquium

In this talk we present a general procedure for analyzing a multilayer array structure, where the layers may have different periodicities, different lattice structures, and/or the array axes between the layers may be nonparallel. The procedure involves determination of global cell, computation of the Generalized Scattering Matrices (GSMs) of individual layers followed by modal mapping from local to global GSMs. In order to demonstrate the methodology, we consider three examples of practical importance. We discuss the analytical and computational advantages of this approach at the end.

Arun K. Bhattacharyya (M'87-SM'91-F'02) was born in India in 1958. He received his B.Eng. degree in electronics and telecommunication engineering from Bengal Engineering College, University of Calcutta in 1980, and the M.Tech. (Microwave engineering) and Ph.D. degrees from Indian Institute of Technology, Kharagpur, India, in 1982 and 1985, respectively. From November 1985 to April 1987, he was with the University of Manitoba, Canada, as a Postdoctoral Fellow in the electrical engineering department. From May 1987 to October 1987, he worked for Til-Tek Limited, Kemptville, ON, Canada as a senior antenna engineer. In October 1987, he joined the University of Saskatchewan, Canada as an assistant professor of electrical engineering department. He was promoted to the associate professor rank in 1990. He joined the Boeing Satellite Systems (formerly Hughes Space and Communications), Los Angeles, in July 1991. Dr. Bhattacharyya is a Fellow of IEEE, a Technical Fellow of Boeing and holds a Senior Scientist position at Boeing. He is the author of Electromagnetic Fields in Multilayered Structures-Theory and Applications (Artech House, Norwood, MA, 1994). His technical interests include applied electromagnetics, printed antennas, multilayered structures, active phased arrays and modeling of microwave components and circuits. Dr. Bhattacharyya is the recipient of the 1996 Hughes Technical Excellence Award and the 2002 Boeing Special Invention Award for his invention of high efficiency horns.