Title :
Singly-fed dielectric resonator antenna with a wideband circular polarization
Author :
Sulaiman, M.I. ; Khamas, S.K.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK
Abstract :
A cylindrical dielectric resonator antenna (DRA) that is excited using a conformal square spiral strip has been studied theoretically and experimentally. The proposed excitation has provided a measured circular polarization over a bandwidth of ~4.2% in conjunction with an impedance-matching bandwidth of ~14.3% at the same frequency range. The structure has been rigorously modeled using a method of moments (MoM) model, where a good agreement has been achieved between computed and measured results.
Keywords :
broadband antennas; conformal antennas; dielectric resonator antennas; electromagnetic wave polarisation; impedance matching; method of moments; spiral antennas; DRA; MoM model; conformal square spiral strip; cylindrical dielectric resonator antenna; impedance matching bandwidth; method of moments; singly-fed dielectric resonator antenna; wideband circular polarization; Antenna measurements; Bandwidth; Dielectric resonator antennas; Dielectrics; Frequency measurement; Spirals;
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
