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In this paper, we discuss the experimental characterization of a negativerefractive 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 LRsanalytical and simulation study is not new but design in Ka band and differentexperimental procedure for the characterization of the negative refractiveindex is the novelty of this paper. For performing a negative refractive indexexperiment we made prism of 150 Prism angle . We get enhanced transmittance ofmore than 20 dB from background, at a negative angle of refraction. The valuesof the negative refractive index in a band of about 1 G Hz around 31 GHz areretrieved from the experimental data.

Experimental characterization of negative refractive index material NRM at Ka band