Numerical analysis of metallic periodic structures in THz region

The article presents results of numerical modelling of planar resonators arrays deigned for THz frequencies. The increase in the resonant frequency of each array's element is achieved by down-scalling its dimensions. Accompanying effects, as the rise of resistive metal losses are examined also. The presented results have shown the possibilities of down-scalling the geometry of basic planar resonators in order to achieve the resonance phenomena at THz frequencies, eventually in the infrared band.