Title :
Circularly polarized dielectric resonator antenna excited by dual microstriplines
Author :
Sung, Y.J. ; Ahn, C.S. ; Kim, Y.-S.
Author_Institution :
Dept. of Radio Sci. & Eng., Korea Univ., Seoul, South Korea
Abstract :
In this paper, a circularly polarized ring dielectric resonator antenna (DRA) excited by pair of orthogonal 50 Ω microstripline is proposed. A quadrature hybrid coupler is used to generate a circular polarization. Because the antenna structure is printed in a single metal layer, this antenna can be easily constructed. This antenna has a low axial ratio over wide frequency band, a wide bandwidth and the maximum gain of 4.9 dBi at the frequency of 9.55 GHz.
Keywords :
dielectric resonator antennas; electromagnetic wave polarisation; microstrip lines; 9.55 GHz; circularly polarized dielectric resonator antenna; dual microstriplines; low axial ratio; quadrature hybrid coupler; wide frequency band; Conductors; Coupling circuits; Dielectric constant; Dielectric resonator antennas; Dielectric substrates; Feeds; Frequency; Microstrip antennas; Microstrip resonators; Polarization;
Conference_Titel :
Radio and Wireless Conference, 2003. RAWCON '03. Proceedings
Print_ISBN :
0-7803-7829-6
DOI :
10.1109/RAWCON.2003.1227944
