Analysis of elliptical-disk microstrip patch printed on isotropic or anisotropic substrate materials

Abstract

This paper presents a simple approach for accurate determination of the resonant frequency of an elliptical microstrip patch printed on isotropic or anisotropic substrate materials. In this approach, some modifications are made to account for fringe fields, dispersion effects, and losses by calculating effective dimensions, effective permittivity of anisotropy in the layer, and effective loss tangent, respectively. The theoretical resonant frequency results are in very good agreement with the experimental results reported elsewhere. Numerical results show that the change in the resonant frequency of the antenna is due primarily to a small disturbance of the substrate's nature. Then the effect of the uniaxial anisotropic materials is a significant parameter and most essential on the microstrip antenna characterization.

Efficient CAD Model to Analysis of High Tc Superconducting Circular Microstrip Antenna on Anisotropic Substrates

“…In the design of microwave integrated circuit components and microstrip patch antennas, anisotropic substances have been increasingly popular. Especially the effects of uniaxial type anisotropy have also been considered in some of the later studies [5][6][7][8][9][10] due to the availability of this kind of substances such as Sapphire, Magnesium fluoride and Epsilam-10. Formulations of those studies are lengthy and complicated even in single substrate case.…”

Design Techniques for Elliptical Micro-Strip Patch Antenna and Their Effects on Antenna Performance

“…Method of Moments (MoM) along with the reaction integration method was employed to analyze the EMPA for circular polarization where the continuity and singularity of the currents in the patch-probe conjunction point was ensured using the attachment mode [7]. A model to predict the dual resonant frequencies of an elliptical patch micro-strip printed on isotropic or anisotropic substrate was developed [8]. An analytical approach was presented for the characterization of metasurfaces consisting of elliptical patches printed on grounded dielectric slab [9].…”