Circularly Polarized High Gain Monopole Antenna for 5G Applications

In order to effectively utilize the radio frequency (RF) signals present in this ambient environment, efficient RF front-ends are significant. The front-ends must possess design-feasibility, robust circular polarization (CP) characteristics, & consistent antenna efficiency in the sub-6 GHz band, with high CP antenna gain. Therefore, CP-printed monopole inspired by metasurface (MS) is investigated in this article. Broadband CP is achieved with the fractional bandwidth
$> 15\%$
, CP gain
$> 7.5$
dBic, directional radiation pattern exceeding
$100^{\circ}-120^{\circ}$
with 3-dB angular beamwidth in the bands, & enhanced front-to-back ratio (FBR) is within an acceptable parameters. Then, achieved results were then compared to the performance compromises derived from the latest advancements. Hence, a comprehensive design was shown to address prevalent limitation encountered by monopole antennas in the expansive regions of 5G-enabled urban transformation, by utilizing RF application, particularly in the lower 5G band.