A wideband circularly polarized (CP) pyramidal horn antenna (PHA) is proposed. A +45° or -45° rotated spoof surface plasmon polariton (SSPP) waveguide, which serves as a circular polarizer, is ...

A novel polarization-reconfigurable planar antenna is presented. The antenna consists of an electronically reconfigurable polarizer integrated with a printed slot. By changing the states of the p-i-n ...