| 摘要 |
PROBLEM TO BE SOLVED: To prevent the decline of a reception level by antenna directivity and to provide stable input power. SOLUTION: This antenna system is provided with a pair of antennas 4 respectively disposed to left and right door mirrors 2, a driving means 14 respectively connected to the antennas for changing the direction of the antenna and a control means 20 for selecting the antenna on the side of large input power from the pair of the antennas 4, controlling the driving means 14 and making it perform driving so as to fix the antenna on the side of the large input power and change the direction of the antenna on the side of small input power. |
