Wireless communication module and communication terminal apparatus incorporating the same

摘要

A wireless communication module includes a multilayer structure including a magnetic block and at least one non-magnetic layer stacked on the magnetic block, the magnetic block including at least one magnetic layer, at least one inductor element disposed at the magnetic block, and an antenna coil disposed at the non-magnetic layer so as to overlap the inductor element in a planar view along a stacking direction of the non-magnetic layer with respect to the magnetic block, wherein the magnetic layer is present between the inductor element and the antenna coil.

主权项

1. A wireless communication module comprising:
a multilayer structure including a magnetic block and at least one non-magnetic layer stacked on the magnetic block, the magnetic block including a plurality of magnetic layers; first and second inductor elements disposed at the magnetic block; an antenna coil disposed at the at least one non-magnetic layer so as to overlap the first and second inductor elements in a planar view along a stacking direction of the at least one non-magnetic layer with respect to the magnetic block; and a shield conductor disposed between the first and second inductor elements and the antenna coil; wherein at least one of the plurality of magnetic layers is present between the inductor element and the antenna coil; the first and second inductor elements are arranged in close proximity to each other and include a plurality of first coil patterns that are respectively provided on the plurality of magnetic layers; and the plurality of first coil patterns are each wound and arranged on a corresponding layer of the plurality of magnetic layers so that a magnetic flux passing through each of the first coil patterns defines a closed magnetic path.