# Can you prepare circular polarization with a series of rotated linear filters?

I am thinking about centimeter band radiation and parallel wire filters as a specific example. Suppose there is a regular series of parallel wire filters every fraction of a wavelength for a full wavelength or more. The angular orientation of each filter is rotated by the same constant fraction of a full circle from the orientation of the previous filter.

Will this series of rotating linear filters pass circularly polarized radiation of the proper wavelength and handedness?

If so, does it make a difference if the filters are every quarter of a wavelength, every tenth of a wavelength, or even every one one-hundredth of a wavelength?

To be more quantitative, assume you start with a linearly polarized light of amplitude $A$ and that each of the filters is rotated of a angle $\delta \theta$ with respect to the previous one. After passing through $N$ of these filters, you get a light of amplitude $A \cos (\delta \theta)^N$, linearly polarized, and whose plane of polarization is rotated of an angle $N \delta \theta$ with respect to the original plane of polarization.