  We theoretically study the transmission properties of a stack of metallic
metamaterials and show that is able to achieve a perfect transmission
selectively exhibiting broadband ($Q<10$) or extremely narrowband ($Q>10^5$)
polarization rotation. We especially highlight how the arrangement of the
stacked structure, as well as the metamaterial unit cell geometry, can highly
influence the transmission in the spectral domain. For this purpose, we use an
extended analytical Jones formalism that allows us to get a rigorous and
analytical expression of the transmission. Such versatile structures could find
potential applications in polarimetry or in the control of the light
polarization for THz waves.
