Michael Boyarsky

TL;DR: A low-profile holographic imaging system at millimeter wavelengths based on an aperture composed of frequency-diverse metasurfaces is demonstrated and computational methods and calibration approaches that enable rapid and accurate imaging performance are introduced.

TL;DR: It is argued that metamaterial antennas are a near ideal platform for implementing schemes at microwave frequencies and the tradeoffs governing the design and operation of each architecture are examined.

TL;DR: In this paper, the authors investigate the imaging capabilities of a one-dimensional, dynamic, metamaterial aperture that operates at the lower part of K-band microwave frequencies (17.5-21.1 GHz).

TL;DR: It is shown that electronically tuned DMAs can generate steerable, directive beams for traditional stripmap and spotlight SAR imaging modes, which eliminates the need for mechanical gimbals and phase shifters, simplifying the hardware architecture of a SAR system.

TL;DR: An alternative approach using electrically large, dynamically reconfigurable, metasurface antennas that generate spatially distinct radiation patterns as a function of tuning state is presented, resulting in an imaging system that is efficient in software and hardware.