Title :
Circularly polarized Minkowski fractal dielectric resonator antenna
Author :
Dhar, Sudipta ; Ghatak, Rowdra ; Gupta, Bharat ; Poddar, Dipak Ranjan
Author_Institution :
Electron. & Telecommun. Dept., Jadavpur Univ., Kolkata, India
Abstract :
A circularly polarized rectangular Minkowski Island shaped fractal dielectric resonator antenna is presented. Fractal geometry is utilized to enhance the impedance bandwidth of the proposed antenna by merging higher order modes. Circular polarization is obtained by introducing a cross slot to generate two near orthogonal degenerate modes having similar amplitudes and 900 phase difference. The antenna yields a measured impedance bandwidth of 53% (4.71-8.10 GHz). The antenna is seen to be Left Hand Circularly Polarized (LHCP) with a gain of 4.21 dB and radiate with an acceptable gain over the entire band.
Keywords :
dielectric resonator antennas; fractal antennas; geometry; microwave antennas; polarisation; Fractal geometry; LHCP; circular polarization; circularly polarized Minkowski fractal dielectric resonator antenna; frequency 4.71 GHz to 8.10 GHz; impedance bandwidth measurement; left hand circularly polarized; orthogonal degenerate modes; Bandwidth; Dielectric resonator antennas; Dielectrics; Fractals; Impedance;
Conference_Titel :
Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on
Conference_Location :
Hiroshima
Print_ISBN :
978-1-4673-4939-0
