Programmable Metasurface-Based Wideband Antenna for High-Gain Beam-Steering and Pattern-Reconfigurability Applications

An electronically pattern reconfigurable metasurfaced antenna is presented in this paper. The proposed work comprises of a wideband monopole antenna and a single layered metasurface that act as a reflector. The metasurface consists of 16 independent reconfigurable elements that controls the radiation behavior of the antenna. Each element is triggered-On using a controlled DC source using microcontroller. The proposed configuration offers multiple radiation pattern starting from omni-directional to broadside, single to dual beam along with steering in both azimuthal and elevation plane. The −10dB impedance bandwidth of the antenna ranges 4 –8 GHz, while the metasurface loaded antenna offers a gain ranges 3 – 8dBi, depending upon the switching state of the programable metasurface. Owing the benefits of low profile and cost effectiveness the proposed antenna can be used for pattern diverse applications where high gain is required.