A single-layered metasurface inspired broadband polarization reconfigurable printed monopole antenna for hybrid wireless applications

A single-layered metasurface-loaded high-gain & broadband polarization reconfigurable lambda o/4 printed monopole antenna is investigated in this article. The proposed antenna configuration comprises of Y-shaped radiating monopole over partial ground plane with the extended twin parasitic conducting strips (PCS), is loaded with a single-layered metasurface (MS) reflector. To attain circular polarization (CP) characteristics, a BAR 50-02 V PIN Diode from Infineon is used to short the partial ground plane and one of the twin parasitic conducting strips (PCS-L). By utilizing the grid-slotted sub patches on the rectangular reflecting surfaces of MS layer with a volumetric dimension of 2 lambda o x 1.65 lambda o x 0.02 lambda o, is placed just below Y-shaped monopole radiator (PYMA) at a height of 0.33 lambda o, in which broadened impedance (IBW) and 3-dB axial ratio bandwidth (ARBW) with the enhanced CP antenna gain are achieved. Finally, proposed prototype of 1.33 lambda o x 0.9 lambda o x 0.02 lambda o, where lambda o = 5 GHz is fabricated and measured. It offers an measured IBW of 48.45 % (3.57-5.85 GHz), ARBW of 25.96 % (4.19-5.44 GHz) and the CP antenna gain of >8.35 dBic with antenna efficiency of >75 % in the desired operating bands. From the above results, the performance of single-layered metasurface-inspired polarization reconfigurable antenna confirms its suitability for hybrid wireless applications and also, it can be extended towards the scope of designing efficient RF energy harvesting system.