Electromagnetic Simulation of Signal Distribution of Various RF Endoluminal Loop Geometries with Coil Orientation: Towards a Reconfigurable Design

Figure 5

Current path possibilities in the case of diagonal double-loop (DDL) designs. Diagonal (a) double-layer (i.e., loops are in parallel and thus current flows in each one) and (b) double-turn (i.e., loops are in series and thus current flows in each one) coils are designed to obtain currents circulating in direction D1 (DDL-D1 and DDT-D1). Also, diagonal (c) double-layer and (d) double-turn coils are designed to obtain currents circulating in direction D2 (DDL-D2 and DDT-D2).

(a)

(b)

(c)

(d)