Antenna & Propagation, Microwave Theory & Techniques and Geoscience &
Remote Sensing Societies
6:00 PM, Monday, 5 December
Topology Optimization of Metamaterials and Applications to Ultra-
Compact Antennas and Reconfigurable Filters
Dr. Raoul O. Ouedraogo, MIT Lincoln Laboratory, Lexington, MA
Metamaterials are artificially engineered materials that have received
significant attention in the scientific community over the past
decade. The interest towards these artificial materials is driven by
the unconventional electromagnetic behavior they exhibit at resonance.
Their peculiar resonance behavior have led to numerous applications
related to cloaking, focusing lenses, sensors, antennas, and filters,
just to name a few. Typical metamaterials structures are derived from
split ring resonators which, unfortunately, have very limited
functionality due to the fact that their design involves very few
parameters (ring radii, split and slot widths). This seminar will
discuss the synthesis of alternative metamaterial structures through
topology optimization and the implementation of an in situ
optimization approach as an effective means to design metamaterial
inspired RF components. The design and prototyping of various
miniature antennas, waveguide and reconfigurable transmission line
filters will be presented.
Dr. Raoul O. Ouedraogo was born in Ouagadougou, Burkina Faso, in 1982.
He received the B.Sc. degree from Southern Illinois University,
Carbondale, in 2006, and the M.Sc. and PhD. degrees from Michigan
State University, East Lansing, in 2008 and 2011 respectively.
He is currently a technical staff member at Lincoln Laboratory,
Massachusetts Institute of Technology, Lexington, since August of
2011. He has authored or co-authored ten journal articles and 22
conference papers on various topics including; metamaterials,
electrically small antennas, self-structuring devices, scattering
analysis, and material characterization.
Meeting will be held at MIT Lincoln Laboratory A-Café, 244 Wood
Street, Lexington, MA. For directions please see: http://www.ll.mit.edu/about/map.html