A Novel Metamaterial Transmit/receive Coil Element for 7 T MRI Design and Numerical Results

Jochen Mosig¹, Achim Bahr¹, Thomas Bolz¹, Mark E. Ladd²

In this work numerical results for the novel usage of a metamaterial transmission line resonator as a transmit/receive coil are presented. On the basis of resonant antennas a coil element is designed for 7 Tesla. The metamaterial element consists of 4 unit cells, which are optimized for a series mode zeroth-order resonance. This resonance induces a constant current distribution along the element, resulting in a homogenous magnetic field in a larger volume compared to a conventional microstrip transmission line element. The metamaterial element can be easily extended by adding additional unit cells.