| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-frequency wave glass antenna for an automobile having improved antenna gain. SOLUTION: A rear window glass sheet 10 includes a plurality of heating wires 2 and a plurality of bus bars 5a and 5b for feeding the heating wires 2, the heating wires 2 and the bus bars form a defogger, the heating wires 2 extend in the horizontal direction of the rear window glass sheet 10, and an antenna conductor 6 is disposed in the upper blank region of the rear window glass sheet 10, except for a defogger region. If there is a line, which passes through the center of the antenna conductor 6 in a right-to-left direction of the antenna conductor or the center of gravity thereof, and which extends parallel to the heating wire at the highest position, is to be called an "imaginary parallel line" 11, an island-like conductor 1a is disposed, in the region of the rear window glass sheet 10 between the imaginary parallel line 11 and the heating wire 2a, at the highest position, when viewed three-dimensionally. COPYRIGHT: (C)2008,JPO&INPIT
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