| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device capable of improving communication characteristics by increasing an area for generating a magnetic flux therein and increasing the magnetic flux.SOLUTION: The antenna device comprises: a circuit board 2 on which a feeder FP is formed; and an antenna part 3 which is connected to the feeder, provided on the circuit board and receives data. The antenna part includes a plurality of coil-like conductors connected to the feeder, and at least one of the plurality of coil-like conductors is built in a laminate chip antenna 4 packaged on the circuit board. The laminate chip antenna includes: a plurality of laminated ceramics material layers which are chip-shaped as a whole; a chip-side conductor pattern 13 to be a coil-like conductor provided between neighboring ceramics material layers; and a pair of terminal electrodes 14 provided on a pair of end faces, connected to an end of the chip-side conductor pattern and connected to the feeder. The plurality of coil-like conductors are disposed side by side on the circuit board and wound in the same direction. |
