High gain wideband circularly polarized antenna with modified ground plane

<p><span>In this study, a high-gain wideband circularly polarized (CP) printed monopole antenna for wireless local-area network (WLAN), worldwide interoperability microwave access or WiMAX, C-band, and multiple input, output (MIMO) applications was proposed demonstrated. The structure has an octal-shaped tilted by 20° from its longitudinal axis, excited coaxial probe feeding, partial ground plane. To achieve broadband CP performance, the plane redesigned with etching slots. A 1.6-mm-deep FR-4 (Ԑr = 4.3) substrate dimensions of 70 x 55 mm2 is used to create test prototype suggested antenna. antenna's measurement results satisfy requirements broad ARBW 107% (1.83-6.05 GHz), impedance bandwidth 139.39% (2-11.2 maximum gain 7.28 dBi.</span></p>