A layer radiowave absorber based on double-period lattices of resistive squares

Abstract

A radiowave-absorbing composite material based on double-period lattices of resistive squares is considered. Methods of the electric circuit and long line theories are applied to obtain expressions for the estimate of the effective permittivity of such a composite. It is shown that the frequency dependence of the effective permittivity of the realized composite is close to the relaxation value. The reflection characteristics of a radiowave absorber based on a composite with double-period lattices of resistive squares are investigated. It is found that, for such a radiowave absorber, the ratio of the difference of the extreme wavelengths of its operating band (corresponding to the minus-10-dB reflection level) to the thickness of the radiowave absorber is within an interval of 4.2–4.5.

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Correspondence to O. A. D’yakonova.

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Original Russian Text © Yu.N. Kazantsev, V.A. Babayan, N.E. Kazantseva, O.A. D’yakonova, R. Mouchka, Ya. Vil áková, P. Sáha, 2013, published in Radiotekhnika i Elektronika, 2013, Vol. 58, No. 3, pp. 264–269.

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Kazantsev, Y.N., Babayan, V.A., Kazantseva, N.E. et al. A layer radiowave absorber based on double-period lattices of resistive squares. J. Commun. Technol. Electron. 58, 233–237 (2013). https://doi.org/10.1134/S106422691303008X

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Keywords

  • Reflection Coefficient
  • Frequency Dependence
  • Frequency Dispersion
  • Reflection Characteristic
  • Effective Permittivity