Gyrotropic reciprocal bianisotropic metamaterial printed dipole antenna: Investigation of negative input impedance and mutual coupling

C. Zebiri, M. L. Bouknia, D. Sayad, I. Elfergani, Moustafa H. Aly, Preecha Yupapin, Sarawoot Boonkirdram*, Arpan Desai, J. Rodriguez

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

This paper surveys a new class of electromagnetic materials. The emphasis is on the bianisotropic medium; a complex material which has never been applied in antenna design. In this context, we investigate the behavior of the magnetoelectric elements of the gyrotropic reciprocal bianisotropic medium used as a grounded substrate by studying their effects on the input impedance and mutual coupling of a printed dipole antenna. Numerical integrative equation calculations are carried out using the spectral method of moments (SMoM) based on the analytical derivation of the appropriate spectral Green's functions for the considered dipole configuration. The obtained results reveal a change in the sign of the real part of the input impedance. This is mainly due to the complex property of the considered medium. The medium has also minimized the input impedance ∼4 times (1kΩ); this can help in device matching. This medium has shown a significant impact on the input impedance as well as the antenna array coupling. The design miniaturization possibility is an important result of this research in the design of antenna arrays.

Original languageEnglish
Pages (from-to)11677-11685
Number of pages9
JournalAlexandria Engineering Journal
Volume61
Issue number12
Early online date1 Jun 2022
DOIs
Publication statusPublished - 1 Dec 2022
Externally publishedYes

Keywords

  • Dipole antenna
  • Green's functions
  • Input impedance
  • Mutual coupling
  • Reciprocal bianisotropic medium
  • Spectral method of moments

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