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    A wave-bending structure at Ka-band using 3D-printed metamaterial

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    Author
    Wu, Junqiang
    Liang, Min
    Xin, Hao cc
    Affiliation
    Univ Arizona, Dept Elect & Comp Engn
    Issue Date
    2018-03-30
    
    Metadata
    Show full item record
    Publisher
    AMER INST PHYSICS
    Citation
    Journal of Applied Physics 123, 124109 (2018); doi: 10.1063/1.5003847
    Journal
    JOURNAL OF APPLIED PHYSICS
    Rights
    Published by the American Institute of Physics
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Three-dimensional printing technologies enable metamaterials of complex structures with arbitrary inhomogeneity. In this work, a 90 degrees wave-bending structure at the Ka-band (26.5-40 GHz) based on 3D-printed metamaterials is designed, fabricated, and measured. The wave-bending effect is realized through a spatial distribution of varied effective dielectric constants. Based on the effective medium theory, different effective dielectric constants are accomplished by special, 3D-printable unit cells, which allow different ratios of dielectric to air at the unit cell level. In contrast to traditional, metallic-structure-included metamaterial designs, the reported wave-bending structure here is all dielectric and implemented by the polymer-jetting technique, which features rapid, low-cost, and convenient prototyping. Both simulation and experiment results demonstrate the effectiveness of the wave-bending structure. Published by AIP Publishing.
    Note
    12 month embargo; published online: 30 March 2018
    ISSN
    0021-8979
    1089-7550
    DOI
    10.1063/1.5003847
    Version
    Final published version
    Sponsors
    National Science Foundation [1408271]
    Additional Links
    http://aip.scitation.org/doi/10.1063/1.5003847
    ae974a485f413a2113503eed53cd6c53
    10.1063/1.5003847
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