A multilayered metamaterial-inspired miniaturized dynamically tunable antenna

    Research output: Research - peer-reviewArticle

    • 6 Citations

    Abstract

    A multilayered metamaterial-inspired antenna with a pixel grid loading structure is introduced. The antenna consists of two patterned metal layers separated by a thin dielectric film. The first layer contains a folded monopole antenna surrounded by a metal pixel-based loading structure, whereas the second layer consists of a photoconductive pixel grid utilized to tune the antenna. Appropriate pixel configurations to produce a desired performance are implemented in simulation using a binary genetic algorithm (GA) and a MATLAB-HFSS (high-frequency simulation software) interface. HFSS simulations show that the antenna can be tuned over a wide frequency range by appropriate choice of pixel states on the second layer, using a variety of conductivities. As a proof of concept, the pixel grid on the second layer is initially made of a metal conductor. Multiple antenna configurations corresponding to a wide frequency range are constructed using a multilayer fabrication method. The measured reflection coefficients and radiation patterns are shown to be in good agreement with HFSS simulations, successfully demonstrating the ability to tune the antenna using the pixel grid on the second layer.

    LanguageEnglish (US)
    Article number7027210
    Pages1546-1553
    Number of pages8
    JournalIEEE Transactions on Antennas and Propagation
    Volume63
    Issue number4
    DOIs
    StatePublished - Apr 1 2015

    Profile

    antennas
    pixels
    Metamaterials
    Pixels
    Antennas
    grids
    simulation
    metals
    Metals
    frequency ranges
    configurations
    monopole antennas
    genetic algorithms
    conductors
    computer programs
    reflectance
    conductivity
    fabrication
    radiation
    Metamaterial antennas

    Keywords

    • Metamaterials
    • miniaturized antennas
    • monopole antennas
    • multilayer
    • small antennas
    • tunable antennas

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Condensed Matter Physics

    Cite this

    A multilayered metamaterial-inspired miniaturized dynamically tunable antenna. / Myers, Joshua C.; Chahal, Premjeet; Rothwell, Edward; Kempel, Leo.

    In: IEEE Transactions on Antennas and Propagation, Vol. 63, No. 4, 7027210, 01.04.2015, p. 1546-1553.

    Research output: Research - peer-reviewArticle

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