| 摘要 |
PURPOSE:To improve flutter and ghost of a TV set and also to obtain an excellent antenna from the standpoint of air resistance and design by providing a space diversity reception antenna to a front window glass of an automobile. CONSTITUTION:One antenna conductor 14 is provided symmetrically to the center line at nearly the middle of a front window glass, and the remaining two antenna conductors 13, 15 are provided at the side, upper side or lower side. The distance among the antenna conductors 13, 14 and 15 is nearly 20-80cm, and since the directivity is different with different direction of antenna conductors and arranged position, the three antennas 13, 14 and 15 are not simultaneously in the falling point of an electric field nor show a low gain. Thus, the function as a space diversity antenna is attained sufficiently and flutter and ghost of a TV set are improved. Since a glass antenna is used, excellent performance from the standpoint of air resistance and design is improved. |
