Yazarlar

  • MakaleAçık Erişim2021Scopus SJRQ1
    Simple and accurate electromagnetic characterization of omega-class bianisotropic metamaterials using the state transition matrix method

    Hasar, Ugur C.; Ozturk, Gokhan; Kaya, Yunus; Barroso, Joaquim J.; Ertugrul, Mehmet

    We propose a simple and accurate microwave extraction procedure for full electromagnetic characterization of \Omega -class bianisotropic metamaterial (MM) slabs from normal incidence scattering (S-) parameters using TE1, TE2, and TE3 modes. Its closed-form nature (no need for any numerical analysis and optimization toolbox) and less requirement (a total of seven S-parameters) demonstrate the advantage of our method over other methods in the literature. Our approach was validated and its accuracy was verified by S-parameters, through a full electromagnetic simulation program - CST Microwave Studio, of an edge-coupled \Omega -class split-ring-resonator MM slab.

    AtıfScopus15WoS13OpenAlex14
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2019Scopus SJRQ1
    Transient plane-wave transmission through an N-Layer structure by the method of subregions

    Hasar, Ugur Cem; Kaya, Yunus; Barroso, Joaquim J.

    The temporal transmission properties of an N-layer structure under planar wave incidence are investigated by the method of subregions via the wave matrix approach. The transmission coefficient expression is first expressed in the frequency-domain by reduced transmission coefficients and then transformed into the time domain, which includes unit step functions with different effective time periods and weightings. The analysis is validated by numerical computations and three-dimensional electromagnetic simulations at gigahertz frequencies.

    AtıfScopus12WoS12OpenAlex13
    ScopusWeb of Scienceİncele