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Experimental and numerical investigation of dielectric resonator antenna based on doped Ba(Zn1/3Ta2/3)O3 ceramic

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  • R. V. Leite
  • F. O. S. Costa
  • Mailadil T. Sebastian
  • A. J. M. Sales
  • A. S. B. Sombra

Abstract

This paper reports a numerical and experimental investigation of the microwave dielectric properties of ZrO2 and Cr2O3 doped Ba(Zn1/3Ta2/3)O3 ceramic prepared the conventional solid-state ceramic route. The influence of these doping on the dielectric properties in the microwave frequencies of the Ba(Zn1/3Ta2/3)O3 matrix is investigated. The pure sample showed a dielectric permittivity around 28.98, with loss of around 10−5 and $ {\boldsymbol{\tau }_{\boldsymbol{f}}} $ τf close to zero. ZrO2 and Cr2O3 were added to the pure specimen with differents amounts 0.5 mol% and 1 mol%. The experimental and theoretical characteristics of the resonator like return loss, bandwidth, input impedance are in good agreement. The simulations of radiation patterns are presented. The samples showed a frequency response bandwidth (BW−10 dB) of around 3% (simulated) for the frequency operation.

Suggested Citation

  • R. V. Leite & F. O. S. Costa & Mailadil T. Sebastian & A. J. M. Sales & A. S. B. Sombra, 2019. "Experimental and numerical investigation of dielectric resonator antenna based on doped Ba(Zn1/3Ta2/3)O3 ceramic," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 33(1), pages 84-95, January.
  • Handle: RePEc:taf:tewaxx:v:33:y:2019:i:1:p:84-95
    DOI: 10.1080/09205071.2018.1526131
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