| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device capable of flexibly adjusting resonant frequencies which are made into double resonance.SOLUTION: The antenna device includes a substrate body 2, a ground surface GND formed on a surface of the substrate body, a first element 3 and a second element 4. The first element includes first to fourth extension parts E1 to E4 while providing a feeding point EP at a proximal end side and the second element includes fifth to seventh extension parts E5 to E7. Between the fifth extension part and the seventh extension part, a capacitance loading part E12 is formed which protrudes from a distal end of the third extension part oppositely to the fourth extension part. |
