Abstract
In this paper circularly Polarized Dielectric Resonator Antenna (CDRA) for the X-band frequency applications has been designed and investigated. Proposed CDRA fed by V- shaped slot; is showing characteristics of Circular Polarization in the desired band. Two inclined arms of symmetrically centered V- shaped slot having same dimension excite the TM 01δ modes at 10GHz as well as slots itself are resonating at 8.5 GHz. Crossing of λ/4 long micro strip line between both slots at an angle is generating the nature of circular polarization near the 9.5GHz frequency range. Axial Ratio bandwidth (AR ≤ 3 dB) of 9% (825MHz) and impedance bandwidth (S 11 ≤ -10 dB) of 37% (3.5GHz) has been shown by the antenna which can be considered large axial ratio bandwidth for single and simple feed CDRA. Proposed antenna has shown average gain of more than 6 dBi in broadside direction with more than 96% radiation efficiency in desired band.
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