Analysis of the Combinatory Effect of Uniaxial Electrical and Magnetic Anisotropy on the Input Impedance and Mutual Coupling of a Printed Dipole Antenna Articles uri icon

authors

  • Bouknia, M.L.
  • Zebiri, C.
  • Sayad, D.
  • ALIBAKHSHIKENARI, MOHAMMAD
  • Elfergani, I.
  • Abd-Alhameed, R.
  • RODRIGUEZ ALONSO, JOSE
  • Falcone, F.
  • Limiti, E.

publication date

  • January 2021

Electronic International Standard Serial Number (EISSN)

  • 2169-3536

abstract

  • The main objective of this work is to investigate the combinatory effects of both uniaxial magnetic and electrical anisotropies on the input impedance, resonant length and the mutual coupling between two dipoles printed on an anisotropic grounded substrate. Three different configurations: broadside, collinear and echelon are considered for the coupling investigation. The study is based on the numerical solution of the integral equation using the method of moments through the mathematical derivation of the appropriate Green’s functions in the spectral domain. In order to validate the computing method and evaluated Matlab® calculation code, numerical results are compared with available literature treating particular cases of uniaxial electrical anisotropy; good agreements are observed. New results of dipole structures printed on uniaxial magnetic anisotropic substrates are presented and discussed, with the investigation of the combined electrical and magnetic anisotropies effect on the input impedance and mutual coupling for different geometrical configurations. The combined uniaxial (electric and magnetic) anisotropies provide additional degrees of freedom for the input impedance control and coupling reduction. CCBY

keywords

  • anisotropic magnetoresistance antenna arrays couplings dipole antenna dipole antenna dipole antennas impedance input impedance mutual coupling mutual coupling spectral domain analysis substrates uniaxial anisotropy degrees of freedom (mechanics) dipole antennas electric grounding electric impedance electric impedance measurement functions integral equations magnetism matlab method of moments microstrip antennas numerical methods substrates anisotropic substrates electrical anisotropy geometrical configurations grounded substrates mathematical derivation numerical results numerical solution printed dipole antennas magnetic anisotropy