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An efficient study of circular microstrip antenna on suspended and composite substrates

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Abstract

In this paper, an efficient full-wave analysis of a circular microstrip patch printed on suspended and composite substrates is performed using a dyadic Green’s function formulation. Galerkin’s technique is used in the resolution of the integral equation of the electric field. The TM set of modes issued, from the magnetic wall cavity model, are used to expand the unknown currents on the circular patch. The radiation patterns are expressed regarding the transforms of the currents. The convergence of the method is proven by calculating the resonant frequencies, half-power bandwidths, and quality factors for several configurations. The computed results are found to be in excellent agreement with those observed in the literature. The numerical results obtained show that the bandwidth increases with the increase in the thickness of the suspended or composite substrates, especially for low permittivity of the second layer. Also, it is demonstrated that the resonant frequencies of the circular microstrip patch on suspended and composite substrates can be adjusted to obtain the maximum operating frequency of the antenna. Finally, the effect of the presence of the second layer under the circular patch on the radiation patterns is also investigated.

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Authors and Affiliations

  1. Department of Industrial Engineering, University of Khenchela, 40004, Khenchela, Algeria

    Sami Bedra

  2. Department of Electronics, University of Frères Mentouri-Constantine 1, 25000, Constantine, Algeria

    Siham Benkouda

  3. Department of Electronics, University of Batna 2, 05000, Batna, Algeria

    Tarek Fortaki

Authors
  1. Sami Bedra
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  2. Siham Benkouda
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  3. Tarek Fortaki
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Correspondence to Sami Bedra.

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Bedra, S., Benkouda, S. & Fortaki, T. An efficient study of circular microstrip antenna on suspended and composite substrates. J Comput Electron 16, 922–929 (2017). https://doi.org/10.1007/s10825-017-1012-9

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  • DOI: https://doi.org/10.1007/s10825-017-1012-9

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