Title :
A dual frequency circularly polarized antenna design using a combination of DRA and microstrip patch
Author :
Yoonjae Lee ; Junho Yeo ; Mittra, R.
Author_Institution :
Electromagn. Commun. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
In this paper, we present a novel dual frequency circularly polarized antenna concept, utilizing a cylindrical dielectric resonator and a microstrip patch. we describe a stacked configuration of a dielectric resonator antenna on a microstrip patch for dual frequency operation. A circular polarization is obtained by utilizing four coax feeds in phase quadrature. A numerical simulation of the radiation characteristic and return loss of the antenna has been performed. This configuration is found to exhibit a wide axial ratio beamwidth.
Keywords :
antenna radiation patterns; antenna theory; dielectric resonator antennas; electromagnetic wave polarisation; impedance matching; microstrip antennas; multifrequency antennas; circularly polarized antenna; cylindrical dielectric resonator; dielectric resonator antenna; dual frequency antenna; four coax feeds; impedance matching; microstrip patch; phase quadrature; radiation characteristic; return loss; stacked configuration; wide axial ratio beamwidth; Coaxial components; Dielectric losses; Dielectric resonator antennas; Electromagnetic wave polarization; Feeds; Frequency; MMICs; Microstrip antennas; Microstrip resonators; Patch antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220136
