Computational Investigation and Design of Planar EBG Structures for Coupling Reduction in Antenna Applications

Author

Assimonis, Stylianos D. ; Yioultsis, Traianos V. ; Antonopoulos, Christos S.

Author_Institution

Dept. of Electr. & Comput. Eng., Aristotle Univ. of Thessaloniki, Thessaloniki, Greece

Volume

48

Issue

2

fYear

2012

Firstpage

771

Lastpage

774

Abstract

The uniplanar cross-like compact EBG structure is thoroughly assessed by means of a computational FEM-based eigenvalue analysis. A careful inspection of the dispersion diagram reveals the existence of a nearly-TEM mode that compromises the bandgap behavior, a fact that is also confirmed in coupling performance investigations. The structure is then modified and optimized to maximize the resulting bandgap zone, for mutual coupling reduction in WiMAX MIMO arrays.

Keywords

antennas; eigenvalues and eigenfunctions; electromagnetic coupling; finite element analysis; photonic band gap; TEM mode; WiMAX MIMO array; antenna application; bandgap behavior; computational FEM; dispersion diagram; eigenvalue analysis; mutual coupling reduction; uniplanar cross-like compact EBG structure; Dispersion; Metamaterials; Microstrip antenna arrays; Mutual coupling; Photonic band gap; Antenna arrays; dispersion diagram; electromagnetic bandgaps (EBG); mutual coupling reduction;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2172680

Filename

6136770