Design and Modeling of Electromagnetic Impedance Surfaces to Reduce Coupling between Antennas

Yong S. Joe, Jean-François D. Essiben, Jangsik Cho, Eric R. Hedin

Center for Computational Nanosciences, Department of Physics and Astronomy, Ball State University, Muncie, USA.
Department of Electrical Engineering, Advanced Teachers’ Training College for Technical Education, University of Douala, Douala, Cameroon.
Department of Informational Statistics, Kyungsung University, Busan, Korea..

DOI: 10.4236/wet.2012.33022                

Abstract

We study the coupling problem of two waveguide antennas using the design of a two-dimensional inhomogeneous impedance structure with a fixed reflected field. Since this structure enables electromagnetic compatibility between antennas located on a plane, the behaviors of the electromagnetic field along the impedance structure are investigated. The method of moments is used to solve the integral equations and the numerical results are presented and analyzed. To reduce coupling between antennas, we need to take into account both the amplitude distribution of the field along the structure and in the openings of the antennas. In addition, while designing the structure, it is necessary to control the coefficient of decoupling.

Keywords

Coupling; Waveguide; Impedance Structure; Electromagnetic Compatibility

Conflicts of Interest

The authors declare no conflicts of interest.

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