F. Mariotte et N. Engheta, REFLECTION FROM A LOSSY CHIRAL SLAB (WITH AND WITHOUT METALLIC BACKING) IN A PARALLEL-PLATE WAVE-GUIDE, Radio science, 30(4), 1995, pp. 827-834
In this paper we analyze theoretically the problem of reflection of gu
ided transverse electromagnetic (TEM) mode from a lossy chiral layer l
ocated transversely in a parallel plate waveguide. We consider two cas
es: one where the lossy chiral slab is there by itself (without metall
ic backing) and the front and the back of the slab are free space regi
ons in the waveguide; and the other where the lossy slab is backed by
a perfect conductor. The effects of various parameters, particularly t
he loss and the chirality of the layer, on the reflected guided waves
are discussed and physical insights given. This problem may offer pote
ntial applications in the design of novel thin chiral shields and abso
rbers in waveguides and cavities and also for the study of measurement
techniques to obtain material parameters of chiral composites.