Abstract
Matching fluids used in microwave imaging are often lossy to reduce the
reflections from the system enclosure. To enable the use of low-loss
matching fluids, we investigate the use of absorbing metasurfaces as the
enclosure. This has the potential to enhance the signal-to-noise ratio
of the data, thus, enhancing the achievable image accuracy. The
presented example has the following limitation: as opposed to design and
simulation of the physical structure of the metasurface enclosure, it
uses two impedance boundary conditions on top of a metallic-backed
substrate. Thus, the angular dependency of a practical absorber is not
completely taken into account by this model. At the conference, we’ll
also consider a microwave imaging metasurface enclosure via design and
simulation of a physical structure.