A Dual Band Crossed Slot Antenna for L5 and S Band

Abstract

In the present work  a  dual band circularly polarized antenna for satellite applications resonating at S(2.492GHz) and L5(1.16GHz)band of  frequency has been presented using probe feeding technique. The new aspect of the suggested work is the use of triangular-shaped corner trimming along the patch's diagonal and 45-degree slanted rectangular slots to accomplish circular polarization. The radiating structure resulted in an input reflection coefficient of -20.249dB and -30.524dB in the L5 and S band respectively along with a bandwidth of 0.0605GHz and 0.0916GHz. The axial ratio reported was close to 3 dB in the L5 band of the antenna.