Title :
A dual band metamaterial antenna with circular polarization
Author :
Bala, B.D. ; Rahim, Mohamad Kamal B. A. ; Murad, N.A. ; Samsuri, N.A.
Author_Institution :
Commun. Eng. Dept., Univ. Teknol. Malasiya, Skudai, Malaysia
Abstract :
In this paper, A dual band metamaterial antenna with circular polarization is proposed. The antenna consists of a circular patch with etched circular slot printed on an infinite ground plane. The metamaterial property is imposed onto the antenna with the used of series capacitive slot and a shorted inductive via. The circular polarization is obtained at the zero order mode resonance (ZOR) frequency (2.42 GHz) and a linear polarization at negative order mode resonance (NOR) frequency (2.15 GHz). A realized gain of 5.88 dB and 0.877 dB is obtained at ZOR and NOR respectively. An efficiency of 86% and 44% is obtained at 2.42 GHz and 2.16 GHz respectively. Details of the antenna design and approach are described, and the simulated and measured results for the loaded and unloaded antenna are discussed and compared. The antenna is suitable for WLAN application (2.39 GHz-2.45 GHz).
Keywords :
metamaterial antennas; microstrip antennas; multifrequency antennas; polarisation; NOR frequency; WLAN application; ZOR frequency; antenna design; circular patch; circular polarization; dual band metamaterial antenna; etched circular slot; frequency 2.15 GHz; frequency 2.16 GHz; frequency 2.39 GHz to 2.45 GHz; gain 0.877 dB; gain 5.88 dB; infinite ground plane; linear polarization; loaded antenna; negative order mode resonance frequency; series capacitive slot; shorted inductive via; unloaded antenna; zero order mode resonance frequency; Antenna measurements; Dual band; Loaded antennas; Metamaterials; Slot antennas; Circular polarisation; Dual band; Metamaterial; Negative order mode (NOR); Zero order mode (ZOR);
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6901911
