Title :
A wideband circularly polarized slotted rectangular dielectric resonator antenna excited with a cross-slot
Author :
Rajkishor Kumar;Raghvendra Kumar Chaudhary
Author_Institution :
Department of Electronics Engineering, Indian School of Mines, Dhanbad, 826004, Jharkhand, India
Abstract :
In this paper, a wideband circularly polarized slotted rectangular dielectric resonator antenna (RDRA) has been presented. Orthogonal modes have been excited by using a cross-slot of unequal lengths to show the circular polarization in slotted RDRA. The proposed antenna offers -10 dB impedance bandwidth of 18.37% (at center frequency 3.70 GHz) and 3-dB axial ratio bandwidth of 18.37% (at center frequency 3.70 GHz) in the broadside direction (θ = 0°, Φ = 0°). It has been observed that the proposed antenna show the right hand circular polarization. The average gain and radiation efficiency is 4.08 dB and 83.23% in the broadside direction. This antenna is suitable for Wi-MAX application band (3.3-3.7 GHz).
Keywords :
"Dielectric resonator antennas","Dielectrics","Polarization","Optical resonators","Wideband","Broadband antennas"
Conference_Titel :
Microwave and Photonics (ICMAP), 2015 International Conference on
Print_ISBN :
978-1-4673-6897-1
DOI :
10.1109/ICMAP.2015.7408751
