Abstract:A new method based on multilayer meanderline structures to implement the expected polarization of VICTS antennas was introduced. A cascade of two meanderline polarizers with a unified structure was employed for the first time, which could achieve the functionality of linear polarization compensation and linear to circular polarization conversationon the same VICTS antenna. Without the need of polarizer replacement, free switch between linear polarization and circular polarization was achievable. A model with the diameter of 100 mm was designed, and the correctness of the fullpolarization tunable scheme was verified.