Title :
A Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna Excited by a Lumped Resistively Loaded Monofilar-Spiral-Slot
Author :
Meng Zou ; Jin Pan ; Zaiping Nie ; Pengcheng Li
Author_Institution :
Dept. of Microwave Eng., Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China
Abstract :
A wideband circularly polarized (CP) rectangular dielectric resonator antenna (DRA) based on the concept of traveling-wave excitation is presented. A lumped resistively loaded monofilar-spiral-slot is used to excite the rectangular DRA. The proposed DRA is theoretically and experimentally analyzed, including design concept, design guideline, parameter study, and experimental verification. It is found that by using such an excitation, a wide 3-dB axial-ratio (AR) bandwidth of 18.7% can be achieved.
Keywords :
antenna radiation patterns; dielectric resonator antennas; lumped resistively loaded monofilar-spiral-slot; traveling-wave excitation; wideband circularly polarized rectangular dielectric resonator antenna; Broadband antennas; Dielectric resonator antennas; Dielectrics; Spirals; Wideband; Circular polarization (CP); dielectric resonator antenna (DRA); traveling-wave excitation; wideband;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2294678
