Tuntrakool, Sunti

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Tuntrakool, Sunti
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Tuntrakool, S.
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sunti.tu@kmitl.ac.th

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    Item type:Publication,
    Polarization insensitive switchable metamaterial absorber/reflector for x-band applications
    (2020-01-01)
    Mustapha, M. G.
    ;
    Rahim, M. K.A.
    ;
    Murad, N. A.
    ;
    Ayop, O.
    ;
    Tuntrakool, S.
    A unit cell of squared shaped polarization-insensitive switchable metamaterial absorber/reflector is presented. The structure operates at 10.20 GHz under both absorber mode and reflector mode configurations. Copper wire bridging the gaps to form a circular shape structure were used as switches for operation mode selections. The structure was designed on an FR4 substrate, and the incidental wave angles were varied from 0 to 50 degrees. The structure demonstrated almost 100% absorption at resonance, 3.314 GHz percentage bandwidth at 80% as an absorber. On the other hand, as reflector, it demonstrated almost a 90% reflection and a usable bandwidth of 3.327 GHz.