Affiliations: [a] Department of Electronic, University Ferhat Abbas, SETIF, Sétif, Algeria | [b] Department of Electronic, University Mentouri of Constantine, Constantine, Algeria | [c] Department of Electrical Engineering, 20 Aout 1955 University, Skikda, Algeria | [d] Electronic and Communication Engineering, Khalifa University, Sharjah, UAE | [e] Engineering and Informatics, University of Bradford, Bradford, UK
Abstract: In this paper, the gyrotropic bi-anisotropy of the chiral
medium in substrate constitutive parameters (ξc and ηc)
of a rectangular microstrip patch antenna is introduced in order to observe
its effects on the complex resonant frequency, half-power bandwidth and
input impedance. Numerical calculations and analysis based on the dominant
mode are carried out to show that the latter is directly related to the
former. This paper is based on the Moment Method as full-wave spectral
domain approach using sinusoidal basis functions. Two new results, namely
the appearance of the difference (ξc-ηc) and sum (ξ
c+ηc) of the two magneto-electric elements are obtained
in the electric transverse components and Green tensor expressions,
respectively. These new results can be considered as a generalisation form
of the previously published work.
Keywords: Microstrip antenna, chiral, gyrotropy, bi-anisotropy, moment method
