Wideband Circular Polarization Reconfigurable Phased Array using Rotating 45-Degree Linearly Polarized Elements

In this paper, a wideband circular polarization reconfigurable phased array antenna (CPRPAA) is presented. The CPRPAA is designed with wideband 45-degree linearly polarized elements (45LPE). Sequential rotation technique (SRT) is applied to achieve circular polarization (CP). Results show the proposed CPRPAA not only exhibits high gain in whole operating band, but also has low axial ratio (AR) with wide-angle scanning.