Dr. Steven W. Ellingson Associate Professor Office: 443 Durham Mailing Address: 432 Durham (0350) Virginia Tech Blacksburg, VA 24061 Tel: (540) 231-2978 Fax: (540) 231-3362 Email: Web page: http://www.ece.vt.edu/swe/

Biography:

Steven W. Ellingson received the B.S. degree in Electrical & Computer Engineering from Clarkson University, Potsdam, NY, in 1987, and the M.S. and Ph.D. degrees in Electrical Engineering from the Ohio State University, Columbus, in 1989 and 2000, respectively. From 1989 to 1993, he served on active duty with the U.S. Army. From 1993 to 1995, he was a Senior Consultant with Booz-Allen and Hamilton, McLean, VA. From 1995 to 1997, he was a Senior Systems Engineer with Raytheon E-Systems, Falls Church, VA.
From 1997 to 2003, he was a Research Scientist with the Ohio State University ElectroScience Laboratory. He has been with the Bradley Department of Electrical & Computer Engineering at Virginia Polytechnic Institute & State University since 2003. His research interests include a wide range of applications involving antennas & propagation, applied signal processing, and instrumentation. He is a Senior Member of the IEEE.

Research Areas:

• Transceiver Design for Wideband & Software-Defined Applications
• Wireless Communications in and around Aircraft and other Vehicles
• Interference Mitigation
  
• Emitter Detection & Geolocation
  
• Radio Astronomy and Microwave Remote Sensing
  

Selected Publications

• S.W. Ellingson, T.E. Clarke, A. Cohem, N.E. Kassim, Y. Pihlstrom, L. J Rickard, and G.B. Taylor, "The Long Wavelength Array" (invited paper), Proc. IEEE, Vol. 97, No. 8, pp. 1421-1430, Aug 2009.
• A.B. MacKenzie, J.H. Reed, P. Athanas, C.W. Bostian, R.M. Buehrer, L.A. DaSilva, S.W. Ellingson, Y.T. Hou, M. Hsiao, J.-M. Park, C. Patterson, S. Raman, and C.R.C.M. da Silva, "Cognitive Radio and Networking Research at Virginia Tech" (invited paper), Proc. IEEE, Vol. 97, No. 4, pp. 660-688, April 2009.
• K.W. Hurst and S.W. Ellingson, "Path Loss from a Transmitter Inside an Aircraft Cabin to an Exterior Fuselage-Mounted Antenna", IEEE Trans. Electromagnetic Compatibility, Vol. 50, No. 3, August 2008, pp. 504-512.
• S.W. Ellingson and M. Harun, "Lateral Position Dependence of MIMO Capacity in a Hallway at 2.4 GHz," IEEE Trans. Antennas and Propagation, Vol. 56, No. 2, February 2008, pp. 515-523.
• S.W. Ellingson, G.A. Hampson, and R.K. Childers, "Argus: An L-Band All-Sky Astronomical Surveillance System", IEEE Trans. Antennas & Propagation, Vol. 56, No. 2, February 2008, pp. 294-302.
• S.W. Ellingson, J.H. Simonetti, and C.D. Patterson, "Design and Evaluation of an Active Antenna for a 29-47 MHz Radio Telescope Array," IEEE Trans. Antennas and Propagation, Vol. 55, No. 3, March 2007, pp. 826-831.

S.W. Ellingson, "Beamforming and Interference Canceling with Very Large Wideband Arrays", IEEE Trans. Antennas and Propagation, Vol. 51, No. 6, June 2003, pp. 1338-46.

S.W. Ellingson and W. Cazemier, "Efficient Multibeam Synthesis with Interference Nulling for Large Arrays", IEEE Trans. Antennas and Propagation, Vol. 51, No. 3, March 2003, pp. 503-511.

E. Ranu and S.W. Ellingson, "A Low-Cost Wideband UHF Downconverter with 5:1 Tuning Range", IEEE Trans. Instrumentation and Measurement, Vol. 51, No. 5, Oct 2002, pp. 1080-1084.

S.W. Ellingson, "Design and Evaluation of a Novel Antenna Array for Azimuthal Angle-of-Arrival Measurement", IEEE Trans. Antennas and Propagation, Vol. 49, No. 6, June 2001, pp. 971-979.