  In this paper, we discuss the experimental characterization of a negative
refractive material NRM at Ka band using LR labyrinth Ring and wire array WA.
We describe in detail the the LR and wire array characterization separately,
and after that the combined experimental results, for NRM are reported. The LRs
analytical and simulation study is not new but design in Ka band and different
experimental procedure for the characterization of the negative refractive
index is the novelty of this paper. For performing a negative refractive index
experiment we made prism of 150 Prism angle . We get enhanced transmittance of
more than 20 dB from background, at a negative angle of refraction. The values
of the negative refractive index in a band of about 1 G Hz around 31 GHz are
retrieved from the experimental data.

Classical Physics