Abstract: A linear-to-circular polarizer antenna is disclosed. In accordance with embodiments of the invention, the polarizer antenna includes an antenna operable to transmit and receive polarized signals and a linear-to-circular polarizer coupled to the antenna. The polarizer includes a plurality of cascaded elements, waveplates or anisotropic sheets, having biaxial permittivity. Each cascaded element has a principal axis rotated at different angles relative to an adjacent element about a z-axis of a 3-dimensional x, y, z coordinate system, and each element is composed of an artificial anisotropic dielectric. The polarizer further includes impedance matching layers disposed adjacent the cascaded elements.
Type:
Grant
Filed:
November 28, 2018
Date of Patent:
March 22, 2022
Assignee:
United States of America has represented by the Secretary of the Air Force
Inventors:
Boris Tomasic, Carl R. Pfeiffer, Thomas P. Steffen