A High Gain Polarization and Pattern Reconfigurable Antenna

In this paper, a novel polarization and pattern reconfigurable antenna operating in the 5.15–5.85 GHz band is proposed for advanced wireless applications. The proposed design features four L-shaped steel dipoles with partially tapered bowtie-shaped radiating elements arranged diagonally on an FR4 substrate. Eight PIN diodes are strategically integrated into the feeding network to achieve dynamic phase control through two 1-to-2 power dividers, enabling four distinct radiation modes including dual-beam and broadside patterns. The antenna demonstrates excellent performance with a 14% bandwidth, peak gain of 8.2–11.1 dBi, and stable radiation efficiency of 0.75–0.85 for all modes. Given the polarization and beam reconfigurability, the proposed antenna presents a promising solution for advanced wireless communication systems.