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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
IEICE TRANSACTIONS on Communications
Publication Date: 2011/05/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Section on Antenna and Propagation Technologies Contributing to Diversification of Wireless Technologies)
metamaterials, resonant antennas, metamaterial substrate, gradient index, anisotropic zero index, flat lens, Luneburg lens, high performance,
Full Text: FreePDF(6.1MB)
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.