Millimeter-waves (30-300 GHz) occupy a strategic part of the electromagnetic spectrum because they can penetrate many nonmetallic barriers including things like walls, clothing, smoke, fog, dust/sand, and clouds, while at the same time allow probing of objects with superior resolution to microwaves. However, current state-of-the-art active mm-wave imaging systems are bulky and non-scalable. In this talk, I will introduce mm-wave computational imaging systems which make use of frequency and spatially diverse antennas/metasurfaces for threat detection and security applications. Such systems meet size, weight, power, and cost (SWaP-C)constraints effectively. I will also introduce our current on-going efforts towards origamimetasurface computational imaging apertures.
Suresh is currently a Postdoctoral Researcher at Integrated Micro-systems Research Lab, Electrical Engineering Department, Princeton University. He received his PhD in Electrical & Computer Engineering from University of Utah in 2017 under the guidance of Prof. David Schurig. He received his M.S in Electrical & Computer Engineering from North Carolina State University in 2010. His PhD dissertation received the ECE Outstanding Dissertation Award, 2016. He was also a Research Project Assistant at Molecular Astronomy Laboratory, Raman Research Institute, Bangalore during 2007-08, where he worked on 10.4 m millimeter-wave radio telescope. His research interests are in electromagnetics, metamaterials, antenna design, computational imaging, and transformation optics design.