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Journal of Electronic Materials

, Volume 48, Issue 2, pp 1196–1206 | Cite as

Microwave Dielectric Properties Study of the La2O3 Additions on the SrBi2Nb2O9 Matrix

  • R.F. Abreu
  • S.O. Saturno
  • E.O. Sancho
  • D.X. Gouveia
  • A.S.B. Sombra
Article
  • 17 Downloads

Abstract

We present the dielectric properties study of the ceramic [SrBi2Nb2O9] single-phase matrix as well as the [SrBi2Nb2O9 + (%)La2O3] composite. The SrBi2Nb2O9 was doped with lanthanum oxide (La2O3) with 3%, 5%, 10% and 15% proportions. Structural characterization by x-ray diffraction was carried out. The dielectric properties in the radio frequency and microwave ranges are presented. The τf temperature coefficient of the composite samples was obtained experimentally. The Hakki–Coleman method has been used to obtain the microwave properties and HFSS software has been used to obtain the far field properties in order to view possible applications of [SrBi2Nb2O9 + La2O3] as a dielectric resonant antenna.

Keywords

SrBi2Nb2O9 microwaves solid-state synthesis DRA 

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Notes

Acknowledgments

The authors are grateful to the CNPq, CAPES and the US Air Force Office of Scientific Research (AFOSR) (FA9550-16-1-0127) for providing financial support.

References

  1. 1.
    K.M. Luk and K.W. Leung, Dielectric Resonator Antennas (Baldock: Research Studies Press, 2003).Google Scholar
  2. 2.
    D. Kajfez and P. Guillon, Dielectric Resonators, 2nd ed. (Tucker: Noble, 1998).Google Scholar
  3. 3.
    M.T. Sebastian, Dielectric Materials for Wireless Communication (Oxford: Elsevier, 2010).Google Scholar
  4. 4.
    B.W. Hakki and P.D. Coleman, IEEE Trans. Microw. Theory Tech. 8, 402 (1960).CrossRefGoogle Scholar
  5. 5.
    M.A.S. Silva, T.S.M. Fernandes, and A.S.B. Sombra, J. Appl. Phys. 112, 74106 (2012).CrossRefGoogle Scholar
  6. 6.
    A. Petosa, Dielectric Resonator Antenna Handbook (Norwood: Artech House, 2007).Google Scholar
  7. 7.
    H.M. Rietveld, Acta Crystallogr. 22, 151 (1967).CrossRefGoogle Scholar
  8. 8.
    H.M. Rietveld, J. Appl. Crystallogr. 2, 65 (1969).CrossRefGoogle Scholar
  9. 9.
    C.A. Balanis, Antenna Theory: Analysis and Design (New York: Wiley, 2012).Google Scholar
  10. 10.
    D.M. Pozar, Microwave Engineering, 4th edn. (2012)Google Scholar

Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  • R.F. Abreu
    • 1
    • 2
  • S.O. Saturno
    • 1
    • 2
  • E.O. Sancho
    • 3
    • 4
  • D.X. Gouveia
    • 1
    • 2
  • A.S.B. Sombra
    • 3
    • 5
  1. 1.IFCE - Instituto Federal do CearáFortalezaBrazil
  2. 2.Telecommunication Engineering DepartmentFederal University of Ceara (UFC)FortalezaBrazil
  3. 3.Physics Department - Telecommunication, Science and Engineering of Materials Laboratory (LOCEM)Federal University of Ceara (UFC)FortalezaBrazil
  4. 4.Department of Mechanical EngineeringUniversity of Fortaleza - UNIFORFortalezaBrazil
  5. 5.Communication and Security Networks Laboratory (LARCES)Ceara State UniversityFortalezaBrazil

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