Demonstration of a negative-refractive-index lens imaging system

Abstract

An imaging system comprising a planar negative-refractive-index lens and a pair of small loop antennas is described. The two loops antennas are fixed on one side of the lens, and the object is transversely scanned across the other side. One loop illuminates the object through the lens. Reflection from the object is focused by the lens onto a plane containing the other loop. This loop senses both reflected and incident fields. An image is constructed by relating transmission (S21) between the loops to the object translation. The system was demonstrated experimentally at 3 GHz and supported by theory.