A Technique for an Array to Generate Switchable Linearly Polarization with High Polarization Purity Using Circularly Polarized Elements

In this paper, a novel method is presented to obtain switchable linearly polarized phased array antenna (LPPAA). The LPPAA is designed with right and left hand circularly polarized (CP) elements. Sequential rotation technique (SRT) is applied to achieve linear polarization (LP). Results show the proposed LPPAA not only exhibits low scan loss with wide-angle scanning, but also have very low cross polarization. This revealing a concise and reliable method for polarization reconfigurable array design for wide angle scanning system.