A terahertz quasi-optical polarization phase shifter with the crystal quartz phase sections

A polarizing phase shifter for quasi-optical transmission line with phase sections made of crystal quartz and polarizers executed on the basis of small-period wire gratings is considered. The phase shifter is intended for operation in terahertz (THz) frequency region. It was examined at 0.89THz frequency (f/sub 0/). The influence of differential phase shift deviation in the sections on the phase shifter error is considered. The error was /spl plusmn/2/spl deg/ in the frequency region which is 15% of f/sub 0/.