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Effective medium characterization of partially-filled rectangular waveguides

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Abstract

A single-mode waveguide, partially filled with dielectric materials, is an important case of a metamaterial. Here, we report an effective medium characterization of partially-filled waveguides by using the image dipole method and obtain an explicit expression for the effective permittivity. We also confirm experimentally that an electromagnetic wave propagating through a partially-filled waveguides has the same reflection and transmission characteristics as a wave propagating through a medium possessing an effective permittivity. In particular, we apply our method to the quarterwave anti-reflection structure and show that our method is suitable for designing wave-filter devices inside a rectangular waveguide.

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Authors and Affiliations

  1. Department of Physics, Korea University, Seoul, 136-701, Korea

    Kyoung-Ho Kim & Q-Han Park

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  1. Kyoung-Ho Kim
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  2. Q-Han Park
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Correspondence to Q-Han Park.

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Kim, KH., Park, QH. Effective medium characterization of partially-filled rectangular waveguides. Journal of the Korean Physical Society 64, 771–774 (2014). https://doi.org/10.3938/jkps.64.771

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  • DOI: https://doi.org/10.3938/jkps.64.771

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