| 摘要 |
PURPOSE:To improve the average reception gain to an FM broadcast radio wave and also to improve the directivity characteristic by providing laterally the 1st antenna and the 2nd antenna respectively and providing a feeding point or a lead point to the feeding point to the middle part of the former. CONSTITUTION:The 1st antenna wire 3 is provided laterally on the upper part of a heater wire 2 on the face of a plate glass 1 forming a rear window glass of an automobile and the 2nd antenna wire 4 is provided laterally under the 1st antenna wire 3 with a prescribed distance. The 1st and 2nd antenna wires 3, 4 are connected at their one end by using a vertical wire 5. Further, a lead point 7 to the feeding point 6 is provided at the middle of the 1st antenna 3 and the lead point 7 is connected to the feeding point 6 by using a conductor wire 8. Thus the average reception gain to the FM broadcast radio wave is improved and also the directivity characteristic is improved. |
