Associate Professor, Department of Electrical and computer Engineering

 Education

Ph.D. Electrical Engineering

 University of Illinois at Urbana-Champaign, 1965

 M.S. Electrical Engineering

 University of Illinois at Urbana-Champaign, 1961

 B.E. Electrical Engineering

 Gujarat University, India, 1957
 
 

Research Interests

Research presently pursued is in the area of electromagnetic radiation, scattering and propagation. Specific work involve design and development of antennas and arrays for application in wireless and satellite communication. Tasks involve development of Matlab codes and analytical work in analysis and design. Commercially available CAD software such as HFSS and FEKO are also considered for use in this work.

Scattering from electrically large bodies is also subject of investigation. These bodies include, among others, metallic and impedance surface bodies of revolution with and without isotropic and anisotropic layers of coatings; dielectric bodies with several layers of coatings. The numerical techniques considered for these tasks include method of moment with parametric elements and/or surface patches. FDTD and FE techniques are also being explored.

Another area of research is in the analysis and design of large phased array antennas and application of convolution synthesis technique to linear and planar array design.

Publications

Books

'UHF Engineering Laboratory Manual', by Sharad R. Laxpati and Konrad Kaczmarski, Publisher: Stipes Publishing Company, (2nd edition) 2005
 
Chapter revision on Computers in "Fundamentals of Engineering Exam Review", Dearborn Publishing, 2004.

Conference Papers

'S-Band Phased Patch Array Design for Sattelite Applications' to be presented at the 2005 IEEE-APS International Symposium and National Radio Science meeting, Washington DC, July 2005, Co-author: Greg Zomchek

'Time of Arrival based Mobile Location Estimation and Tracking', Proceedings of SPIE International Symposium, APOC2003 (Asia Pacfic Optical and Wireless Communications), Wuhan, China, November 2003, Co-authors: Priya V. Ranganathan and Vijay K. Garg.

'Application of Smart Antenna in Universal Mobile Communication Systems (UMTS)' Proceedings of the Wireless 2002, The Fourteenth International Conference on Wireless Communications, Calgary, Alberta, Canada, 8-10 July 2002. Co-authors: Vijay K. Garg and Dexin Wang.

'Numerical Analysis of Waveguide Simulation of A Microstrip Phased Array Antenna on A Normally Biased Ferrite Substrate', 1995 IEEE-APS International Symposium and URSI Radio Science Meeting, Newpoer Beach, CA, June 1995, Co-authors: K. H. Lee and S. R. Laxpati.

'Co-Pol and Cross-Pol Radar Cross-Section for a Missile-Like Body with an Impedance Patch', 1994 IEEE-APS International Symposium and URSI Radio Science Meeting, Seattle, WA, June 1994, Co-authors: S. F. Kawalko and P.L.E. Uslenghi.

'Numerical Analysis of electromagnetic Scattering by Electrically Large Three Dimensional Objects Using Spectral Decomposition Technique', 1994 IEEE-APS International Symposium and URSI Radio Science Meeting, Seattle, WA, June 1994, with S. Kawalko and K. Umashankar.

'Scattering by an Impedance Body of Revolution with an Arbitrary Patch', 1993 IEEE-APS International Symposium and National Radio Science Meeting, Ann Arbor, MI, June 1993, Co-authors: S. F. Kawalko and P.L.E. Uslenghi.

'Wave Tracing using Near-Field Transforms', 1992 IEEE-APS International Symposium and National Radio Science Meeting, Chicago, Illinois, July 1992. Co-author: J.P. Shelton.

'A PC-Based UHF Propagation Study in an Urban Environment', 1992 IEEE-APS International Symposium and National Radio Science Meeting, Chicago, Illinois, July 1992. Co-author: John T. Grimmer.

'Scattering by Rotationally Symmetric Bodies with Arbitrarily Varying Surface Impedance', 1991 National Radio Science Meeting, Boulder, Colorado, January 1991. Co-authors: S. F. Kawalko and P.L.E. Uslenghi.

Publications 1990 - Present

'Use of Smart Antenna Systems in Universal Mobile Communication Systems', IEEE Antennas and Wireless Propagation Letters, Volume 3, 2004, Co-authors: Vijay K. Garg and Dexin Wang.

'Adjunct Faculty As Agents for Re-Engineering Engineering Education', Proceedings of Frontiers in Education FIE '96, Salt Lake City, Utah, November 1996, pp. 1223-1226, Co-author: S. Michael Saad.

 'Scattering by a Missile Like Body with a Surface Impedance Boundary Condition', Proceedings of Joint 3^rd International Conference on Electromagnetics in Aerospace Applications and 7^th European Electromagnetic Structures Conference, Torino, Italy, Sepetember 1993, pp. 235-238; co-authors: S. F. Kawalko and P.L.E. Uslenghi.

'Scattering by Rotationally Symmetric Bodies with Fins and Arbitrarily Varying Surface Impedance', Proceedings of the International URSI-Electromagnetic Theory Symposium 1992, Sydney, Australia, August, 1992. Co-authors: S. F. Kawalko and P.L.E. Uslenghi.

'Computer Code for Scattering from Impedance Bodies of Revolution - Part II: Oblique Incidence - Computer Code', Report No. EML-91-11-2, Electromagnetics Laboratory, Department of EECS (m/c 154), Univeristy of Illinois at Chicago, 851 South Morgan Street, Chicago IL 60607, November 1991, pp 258. Co-authors: S.F. Kawalko and P.L.E. Uslenghi.

'Computer Code for Scattering from Impedance Bodies of Revolution - Part II: Oblique Incidence - Analytical and Numerical Results', Report No. EML-91-11-1, Electromagnetics Laboratory, Department of EECS (m/c 154), University of Illinois at Chicago, 851 South Morgan Street, Chicago IL 60607, November 1991, pp 103. Co-authors: S. F. Kawalko and P.L.E. Uslenghi.

'Computer Code for Scattering from Impedance Bodies of Revolution - Part I: Axial Incidence', Report No. EML-91-02-1, Electromagnetics Laboratory Department of EECS (m/c 154), University of Illinois at Chicago, 851 South Morgan Street, Chicago IL 60607, February 1991, pp 220. Co-authors: S. F. Kawalko and P.L.E. Uslenghi.