Journal: IEEE Transactions on Biomedical Engineering

Article Title: A coupled multimodal planar transmit RF array for ultrahigh field spine MR imaging

doi: 10.1109/tbme.2025.3584217

Figure Lengend Snippet: Figure 6 depicts the simulated distribution of surface currents across each individual coil. At mode 3, the currents flow in a uniform counterclockwise direction throughout the coils, reflecting a consistent and effective driving field. An increment in the magnitude of surface current is particularly noticeable in the central driving coil (Coil 3), decreasing progressively toward the peripheral coils. This pattern of current intensity can be attributed to the electromagnetic coupling within the coils, with the central coil directly connected to the power source, inducing more robust currents. As distance from the center increases, the influence of the driving coil diminishes, a result consistent with the increasing impedance and potential energy losses encountered as the current moves through the planar coupled resonant structure.

Article Snippet: Numerical results of the proposed designs were obtained using the electromagnetic simulation software CST Studio Suite (Dassault Systèmes, Paris, France).

Techniques: