Gameel Saleh1,
Klaus Solbach1, Daniel Erni2, Andreas Rennings3
1High
Frequency Technique (HFT), University of Duisburg-Essen, 47048, Duisburg,
Germany; 2General and Theoretical Electrical Engineering (ATE),
University of Duisburg-Essen, , and CENIDE - Center for Nanointegration
Duisburg-Essen, 47048, Duisburg, Germany; 3General and Theoretical
Electrical Engineering (ATE), University of Duisburg-Essen,, and CENIDE -
Center for Nanointegration Duisburg-Essen, 47048, Duisburg, Germany
In this paper, a multilayer offset EBG structure is introduced as a high surface impedance ground plane to maximize the magnetic field intensity inside the phantom, by suppressing the anti-phase currents on the metallic ground plane. The proposed structure works as a Soft surface with higher surface impedance in the longitudinal direction (like a perfect magnetic conductor PMC), and lower surface impedance in the transversal direction (like a perfect electric conductor PEC). The MRI strip-line coil backed by our EBG structure is successful in exhibiting a stronger H/E field ratio (amounts to 58 %) inside the phantom than the original design using a (PEC) ground plane for the coil.