O. Manoochehri, D. Erricolo, Amin Darvazehban, F. Monticone
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Design of Compact Beam-Steering Active Slot Antennas with a Metasurface Reflector
A wideband and miniaturized reconfigurable antenna operating from 3.5 GHz to 5.5 GHz is proposed. This antenna has a simple structure and uses one tapered crossshaped radiation slot with four parasitic slots and eight PIN diodes. Four diodes are used to control four reflector slots to steer the radiation pattern and the other diodes are used to switch the feeding path to modify the polarization of the radiated beam. The metasurface acts as a reflector and reduces the back lobe, while keeping the profile of the antenna small. Simulation results are presented. The main lobe has minimum gain of 7 dBi and can be steered along 5 positions 0°, ±17° in two perpendicular elevation planes.
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