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2016-09-29
Design of a Compact Planar Quasi-Yagi Antenna with Enhanced Gain and Bandwidth Using Metamaterial
By
Progress In Electromagnetics Research Letters, Vol. 62, 125-131, 2016
Abstract
In this paper, a compact planar quasi-Yagi antenna with enhanced radiation characteristics is presented. The proposed structure is designed by incorporating metamaterial unit cells in place of conventional directors. Here, the technique used for directivity improvement is that the refractive index of the metamaterial is lower than that of the antenna substrate, which acts as a regular lens for beam focusing. Loading the quasi-Yagi antenna with metamaterial results in directivity as well as gain enhancement at the end-fire direction as compared to the quasi-Yagi antenna with directors. In addition, reduction in the overall size of the proposed quasi-Yagi antenna by 26.67% is achieved. An enhanced impedance bandwidth has also been noticed. The gain performance of the proposed antenna within the frequency band has been studied.
Citation
Moumita Sarkar, Rhitam Datta, Pujayita Saha, and Debasis Mitra, "Design of a Compact Planar Quasi-Yagi Antenna with Enhanced Gain and Bandwidth Using Metamaterial," Progress In Electromagnetics Research Letters, Vol. 62, 125-131, 2016.
doi:10.2528/PIERL16072504
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