Open AccessDesign and experimental verification of left-handed metamaterials based on inter-unit-cell coupling
Author(s) -
Jiafu Wang,
Shaobo Qu,
Zhuo Xu,
Jieqiu Zhang,
Hua Ma,
Yuekui Yang,
Xiang Wu,
Linfeng Lu
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.4018
Subject(s) - metamaterial , left handed , bandwidth (computing) , coupling (piping) , resonance (particle physics) , physics , equivalent circuit , inductive coupling , unit (ring theory) , nuclear magnetic resonance , computer science , materials science , optics , telecommunications , atomic physics , mathematics , voltage , quantum mechanics , mathematics education , metallurgy
A method of designing left-handed metamaterials based on inter-unit-cell coupling was proposed in this paper. A theoretical model was established using equivalent circuit theory. By properly setting the geometrical parameters of adjacent unit cells, the electric resonance frequency can be made equal to the magnetic resonance frequency. Thus, the left-handed bandwidth reaches its maximum. A typical left-handed metamaterial based on inter-unit-cell coupling was fabricated and tested. The experimental results show that the test sample has equal electric and magnetic resonance frequencies and the left-handed bandwidth is 24 GHz. This verifies the design method proposed in this paper.