Title :
Design of compact dual-band circularly polarized microstrip antenna based on metamaterial
Author :
Li, Ying ; Zhu, Qi ; Zeng, Kaiyuan
Author_Institution :
Dept. of EEIS, Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
A compact dual-band circularly polarized microstrip antenna is proposed, which is composed of multi-layers. A single feed and proper perturbation on the upper patch are introduced to realize circular polarization. The characteristics of metamaterial are achieved by narrow slots on the lower patch and plated-through holes to the ground to reduce the patch size. The slots and holes are arranged centrosymmetrically to guarantee circular polarization. Simulated and measured results show that fairly low return loss and wide 3dB axial ratio beamwidth can be realized at both operating frequencies, namely 2.0686GHz and 2.3875GHz.
Keywords :
UHF antennas; antenna feeds; electromagnetic wave polarisation; metamaterial antennas; metamaterials; microstrip antennas; multifrequency antennas; slot antennas; axial ratio beamwidth; compact dual-band circularly polarized microstrip antenna design; frequency 2.0686 GHz; frequency 2.3875 GHz; low return loss; metamaterial characteristics; narrow slots; patch size; plated-through holes; single antenna feed; upper patch; Antenna measurements; Dual band; Loss measurement; Metamaterials; Microstrip antennas; Polarization; Metamaterial; Microstrip antenna; circular polarization; compact antenna; dual-band antenna;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6230359
