Abstract
A circular-polarized patch antenna with compact size operating at 2.3 GHz band is presented. The antenna utilizes L shaped slot in the radiator in order to achieve circularly polarized radiation pattern. The prototype of the antenna is fabricated and is fed by a 50Ω strip line. The antenna achieves a symmetrical radiation pattern around zenith. The measured impedance bandwidth of |S11| less than -10dB is from 2.3GHz to 2.35GHz and is in good agreement with simulation results. The antenna achieves better cross-polarization isolation of -19 dB and wider 3dB axial ratio beamwidth (ARBW) of -50 o≤ARBW≤45 o at its resonating frequency. The antenna finds application in modern wireless communication system.
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