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Design of compact dual-band circularly polarized microstrip antenna based on metamaterial

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3 Author(s)
Ying Li ; Dept. of EEIS, Univ. of Sci. & Technol. of China, Hefei, China ; Qi Zhu ; Kaiyuan Zeng

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.

Published in:

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on  (Volume:5 )

Date of Conference:

5-8 May 2012

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