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International Journal of Antennas and Propagation
Volume 2017, Article ID 8920409, 8 pages
https://doi.org/10.1155/2017/8920409
Research Article

A Novel Dual-Band Left-Handed Metamaterial Design Method

1College of Information and Communication Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, China
22COMU, Inc., Fairfax, VA 22030, USA
3Electrical Engineering Department, Colorado School of Mines, Golden, CO 80401, USA

Correspondence should be addressed to Wenxing Li; nc.ude.uebrh@gnixnewil

Received 3 February 2017; Revised 9 May 2017; Accepted 16 May 2017; Published 2 July 2017

Academic Editor: Shih Yuan Chen

Copyright © 2017 Si Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A novel dual-band left-handed metamaterial (LHM) design method is proposed in this paper. Unlike other methods, where the designers focused their attentions on designing single LHM unit with multiple electric/magnetic resonances or combining multiple different LHM units together, the proposed method in this paper introduces an additional magnetic resonance to extract negative permeability, taking advantage of the areas between neighboring units. In this paper, we first designed a single-band single negative metamaterial () and then connected neighboring units with metallic wires. This connection introduces a magnetic resonance that extracts another frequency band with negative permeability. With the help of arrayed metallic wires printed on the other side of the substrate, we successfully get a dual-band LHM. The proposed structures are analyzed with equivalent circuits and verified with simulations.