Title :
A gain-enhanced 60 GHz Yagi antenna based on zero-index metamaterial
Author :
Hsin-Lung Su ; Yan-Jyun Chen ; Ken-Huang Lin
Author_Institution :
Dept. of Comput. & Commun., Nat. Pingtung Univ., Pingtung, Taiwan
Abstract :
Metamaterial (MTM) unit-cells with a zero refractive index was developed, characterized and employed for gain enhancement of a Yagi antenna operating at 60 GHz. The unique property of the MTM gathers the wave radiated from the antenna and collimates it towards the normal direction when used as director. The proposed design provides a gain enhancement of 2.3 dB when the nearing zero-refractive-index MTM director is utilized. Simulation results show that the conventional Yagi antenna´s director replaced by the proposed MTM directors can achieve a maximum gain of 8.18 dBi at 60 GHz.
Keywords :
Yagi antenna arrays; metamaterial antennas; refractive index; MTM unit-cells; Yagi antenna; frequency 60 GHz; zero refractive index; zero-index metamaterial; Antenna radiation patterns; Gain; Indexes; Metals; Metamaterials; Refractive index;
Conference_Titel :
Antennas and Propagation (ISAP), 2014 International Symposium on
Conference_Location :
Kaohsiung
DOI :
10.1109/ISANP.2014.7026668
