Research Article

Design of a PIN Diode-Based Reconfigurable Metasurface Antenna for Beam Switching Applications

Figure 1

(a) Unit cell of the metasurface formed by square split rings loaded with two PIN diodes. (b) Equivalent circuits of the PIN diode in the forward and reverse bias states (, , , and ). (c) Calculated transmission and reflection coefficients and retrieved relative permittivity and permeability of the metasurface formed by double-split square rings loaded with PIN diodes in forward and reverse bias states.