Receiving Antenna Coil Segmented Core Design

The core is divided into multiple cores arranged in a specific pattern (e.g., four cores at the vertices of a rectangle), and coils are wound around each core separately rather than overlapping. This segmentation allows each coil to be wound independently without damaging insulating films while maintaining sufficient reception sensitivity through the distributed core arrangement.

The coil arrangement transitions from a vertical stacking approach (overlapping in Z-axis) to a horizontal distribution approach (arranged in XY-plane around separate cores). By distributing cores in the XY-plane and winding coils around them without vertical overlap, the thickness in the Z-axis direction is reduced while maintaining reception sensitivity through increased core volume and optimal coil winding around each core.

Instead of using a single long winding core that requires reducing width in one direction, the invention segments the core into multiple separate cores (e.g., four cores). This allows the total core volume to be distributed in three dimensions, increasing the effective area available for coil winding while maintaining sufficient length for adequate number of turns, thereby improving reception sensitivity without compromising core cross-sectional area.