| 摘要 |
PROBLEM TO BE SOLVED: To improve an antenna characteristic by reducing effects of a high frequency cable on an antenna.SOLUTION: An antenna device according to an embodiment includes first and second antenna elements juxtaposed along a side of a ground pattern, and a T-shaped passive element. As to the first antenna element, a first end portion is connected to a first feeding point, a second end portion is open, and a part of the element including the second end portion left open is arranged in parallel with the side of the ground pattern. As to the second antenna element, a first end portion is connected to a second feeding point, a second end portion is open, and a part of the element including the second end portion left open is arranged in parallel with the side of the ground pattern. As to the passive element, an end portion of a common piece is connected to the ground pattern in a position between the first feeding point and the second feeding point, and first and second branch pieces are arranged so as to be capacitively coupled to the parts of the first and second antenna elements including the second end portions, respectively. |
