| 摘要 |
PROBLEM TO BE SOLVED: To provide a loop antenna capable of suppressing the fluctuation of frequency characteristics due to a manufacturing error.SOLUTION: A loop antenna comprises: a first pattern (3a) which is provided to a first surface and has a first feeding point (6a); a first conductor (3) which is connected to the first pattern at a first end part of the first surface and has a second pattern (3b) provided so as to face the first pattern; a third pattern (4a) which is provided to the first surface leaving gaps (5-1 and 5-2) generating an electric capacity in the first pattern (3a) and has a second feeding point (6b); and a second conductor (4) which is connected to the third pattern at the second end part facing the first end part and has a fourth pattern (4b) statically combined to the second pattern or connected to the second pattern. The first feeding point (6a) and the second feeding point (6b) are provided so that crossing part of the first pattern and the third pattern is included in a current path.SELECTED DRAWING: Figure 2 |
