| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device for reducing degradation of a characteristic due to reduction of the size, thickness or the like thereof, and achieving increase of gain and range by improving the characteristic of a built-in antenna. SOLUTION: This antenna device includes: a board 1; a wireless circuit part 3 formed on the board 1; the built-in antenna 2 formed on the board 1 and connected to the wireless circuit part 3; a circuit-side ground pattern 4 formed on the board 1 and connected to the wireless circuit part 3; and an antenna-dedicated ground pattern 11 formed on the board 1 and connected to the built-in antenna 2. COPYRIGHT: (C)2010,JPO&INPIT |
