Several Types of Antennas Composed of Microwave Metamaterials

Tie Jun CUI  Xiao-Yang ZHOU  Xin Mi YANG  Wei Xiang JIANG  Qiang CHENG  Hui Feng MA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E94-B   No.5   pp.1142-1152
Publication Date: 2011/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.1142
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Section on Antenna and Propagation Technologies Contributing to Diversification of Wireless Technologies)
Category: 
Keyword: 
metamaterials,  resonant antennas,  metamaterial substrate,  gradient index,  anisotropic zero index,  flat lens,  Luneburg lens,  high performance,  

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Summary: 
We present a review of several types of microwave antennas made of metamaterials, including the resonant electrically small antennas, metamaterial-substrate patch antennas, metamaterial flat-lens antennas, and Luneburg lens antennas. In particular, we propose a new type of conformal antennas using anisotropic zero-index metamaterials, which have high gains and low sidelobes. Numerical simulations and experimental results show that metamaterials have unique properties to design new antennas with high performance.