(InTech, 2011) Navarro Cía, Miguel; Beruete Díaz, Miguel; Sorolla Ayza, Mario; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
This chapter is devoted to polarization effects arisen from perforated metallic plates
exhibiting extraordinary transmission (ET). Setting aside the state-of-the-art of perforated
metallic plates, we show that by applying Babinet’s principle, subwavelength hole arrays
(SHAs) arranged in rectangular lattice can further enhance its potential polarization
response. Different perspectives are brought about to describe and understand the
particular behaviour of self-complementariness-based SHAs: Babinet’s principle, equivalent
circuit analysis, retrieved constitutive parameters, etc. Afterwards, we embark on the
numerical analysis of stacked self-complementariness-based perforated plates. It is shown
the potential of having a birefringent artificial medium behaving like negative and positive
effective refractive index for the vertical and horizontal polarization, respectively. All these
findings are experimentally demonstrated at millimetre-waves.