Title :
A Novel Low-Cost Circularly Polarized Rotated Stacked Dielectric Resonator Antenna
Author :
Fakhte, Saeed ; Oraizi, Homayoon ; Karimian, Reza
Author_Institution :
Dept. of Electr. & Comput. Eng., Iran Univ. of Sci. & Technol., Tehran, Iran
Abstract :
A novel low-cost method for generating circular polarization in a dielectric resonator antenna is proposed. The antenna comprises four rectangular dielectric layers, each one being rotated by an angle of 30 ° relative to its adjacent layers. Utilizing such an approach has provided a circular polarization over a bandwidth of 6% from 9.55 to 10.15 GHz. This has been achieved in conjunction with a 21% impedance-matching bandwidth over the same frequency range. Also, the radiation efficiency of the proposed circularly polarized dielectric resonator antenna is 93% in this frequency band of operation
Keywords :
dielectric resonator antennas; electromagnetic wave polarisation; impedance matching; microwave antennas; circular polarization; circularly polarized antenna; frequency 9.55 GHz to 10.15 GHz; impedance matching; rectangular dielectric layer; rotated stacked dielectric resonator antenna; Antenna measurements; Dielectric resonator antennas; Dielectrics; Microstrip antennas; Polarization; Resonant frequency; Axial ratio (AR); circular polarization (CP); dielectric resonator antenna (DRA); stacked;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2316118
