Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2172680
