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International Journal of Antennas and Propagation
Volume 2013, Article ID 637270, 16 pages
http://dx.doi.org/10.1155/2013/637270
Review Article

Metamaterial Sensors

1Wireless Innovation Lab, School of Information Science and Engineering, Yunnan University, Kunming,Yunnan 650091, China
2Radio Monitoring Center of Yunnan, Kunming,Yunnan 650228, China

Received 5 October 2012; Revised 11 December 2012; Accepted 15 December 2012

Academic Editor: James R. Kelly

Copyright © 2013 Jing Jing Yang 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

Metamaterials have attracted a great deal of attention due to their intriguing properties, as well as the large potential applications for designing functional devices. In this paper, we review the current status of metamaterial sensors, with an emphasis on the evanescent wave amplification and the accompanying local field enhancement characteristics. Examples of the sensors are given to illustrate the principle and the performance of the metamaterial sensor. The paper concludes with an optimistic outlook regarding the future of metamaterial sensor.