Circuit board and circuit module

摘要

A circuit board and a circuit module more accurately provide impedance matching between an antenna coil and an electronic component electrically connected to the antenna coil, and include a board body including board portions and a plurality of laminated insulating material layers made of a flexible material. An antenna coil includes coil conductors provided in the board portion. Wiring conductors are provided in the board portion and electrically connected to the antenna coil. The board portion has a structure that is less likely to deform than the board portion. An integrated circuit electrically connected to the wiring conductors is mounted on the board portion.

主权项

1. A circuit board comprising:
a board body including a first board portion and a second board portion and including a plurality of laminated insulating material layers made of a flexible material; an antenna coil including coil conductors provided on the insulating material layers in the first board portion; wiring conductors provided on the insulating material layers in the second board portion and electrically connected to the antenna coil; and a magnetic material layer including a magnetic material; wherein the second board portion has a structure that deforms less than the first board portion; an electronic component is mounted on the second board portion so as to be electrically connected to the wiring conductors; the board body is bent in a U shape at a boundary between the first board portion and the second board portion; and the magnetic material layer is located between the first board portion and the second board portion.