Novel Sequential Rotated 2x2 Array Notched Circular Patch Antenna

Abstract

This article presents a novel high gain rotated circular patch antenna operating at S-band. Circular patches are arranged with probe feeding in a particular order to get circular polarization. By employing sequential rotation technique, the proposed antenna is giving an impedance bandwidth of more than 40% (return loss less than -10 dB) and 3dB axial ratio bandwidth of 15% in the operating band with peak gain around 13 dB. Array antenna is fabricated on RT-duroid substrate and the measured results are showing good agreement with the simulation results.

Keywords

• Array
• Circular Patch
• Notch
• Sequential Rotation. __________________________________