All-dielectric broadband microwave polarization conversion based on form birefringence

An all-dielectric multilayer polarization converter based on form birefringence is analytically synthesized and designed at microwave frequencies. Form birefringence enables to independently control the transmission characteristics of the parallel and perpendicular components of a linearly polarized incident plane-wave, thus achieving polarization conversion. The performance of the converter is demonstrated using 3D full wave simulations proving an axial ratio lower than 3 dB within the X-band whilst offering good angular stability.