| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device which allows for flexible adjustment of respective resonance frequencies subjected to double resonance.SOLUTION: An antenna device comprises: a substrate body 2; a first element 3 and a second element 4 formed on the surface of the substrate body 2. The first element includes a first extension E1 having a feeding point connected with the proximal end side, a second extension E2, a third extension E3, a fourth extension E4, a fifth extension E5 extending from the distal end of the fourth extension E4 along one side 2a and receding from the second extension, a sixth extension E6 extending from the distal end of the fifth extension E5 along the fourth extension in a direction receding from the one side 2a, and a seventh extension E7. The second element has an eighth extension E8 extending in the direction opposite from the second extension, a ninth extension E9, and a tenth extension E10. |
