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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Power Reflection and Transmission Coefficients for Meander-Line Polarizers with a Chiral Slab

  • Delihacioglu, Kemal (Electrical and Electronics Engineering Department, Gaziantep University) ;
  • Uckun, Savas (Electrical and Electronics Engineering Department, Gaziantep University)
  • Received : 2002.07.15
  • Published : 2003.02.28
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Abstract

This paper presents a theoretical investigation of power reflection and transmission coefficients for a meander-line polarizer placed periodically on a chiral slab. It is assumed that a linearly polarized transverse magnetic wave is incident on a chiral slab from the air region. In the analysis, we derive the electric and magnetic fields in the modal form in the air and chiral regions. We obtain power reflection and transmission coefficients in a straightforward manner after matching the tangential components of the electric and magnetic fields at the boundaries. We present numerical results for the power reflection and transmission coefficients versus frequency and incident angle for different values of the chirality admittance. A meander-line polarizer placed on a dielectric slab can convert a linearly polarized wave to a circularly polarized wave. The design parameters for a meander-line polarizer are the dimensions of the meander-line and the values of the dielectric slab. Replacing a dielectric slab with a chiral slab introduces a new independent parameter which controls the wave polarization.

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References

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