Broadband Circularly Polarized Rectangular Dielectric Resonant Antenna

This paper proposed a circularly polarized rectangular dielectric resonant antenna (RDRA) fed by a strip-line. A relatively high dielectric constant radiating element is placed centrally on the ground plane, and a circularly polarized (CP) field is generated by the excitation of the strip-line which...

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Bibliographic Details
Published in2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) pp. 1 - 4
Main Authors Zhao, Hongzhi, Jiang, Zhaoneng, Zhao, Xiaoyan, Yin, Wenfei
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2019
Subjects
Bandwidth
Broadband antennas
circularly polarized
Dielectric resonator antennas
Dielectrics
Metals
Power dividers
rectangular dielectric resonant antenna
Wilkinson power divider
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Summary:This paper proposed a circularly polarized rectangular dielectric resonant antenna (RDRA) fed by a strip-line. A relatively high dielectric constant radiating element is placed centrally on the ground plane, and a circularly polarized (CP) field is generated by the excitation of the strip-line which is orthogonally placed on the side wall of the RDRA. At the same time, the energy transmitted by the power divider is coupled through two probes along the strip-line on the DRA sidewall. In addition, by introducing four vertical metal plates around the DR, the frequency range of Axial ratio (AR) is expanded further. Experimental results show that the antenna has an impedance bandwidth of 53.7%(2.22-3.85GHz), a 3dB AR bandwidth of 51.1%(2.27-3.83GHz), and the peak gain is 8.5dBic.
ISSN:2377-8512
DOI:10.1109/CSQRWC.2019.8799337