发明名称 |
GLASS ANTENNA FOR VEHICLE |
摘要 |
[Object] An obj ect of the present invention is to provide a glass antenna for a side glass which is capable of obtaining a high reception gain over the full range of a desired frequency band of FM broadcast wave. [Means to solve] A glass antenna provided on a vehicle side glass has a power feeding portion disposed at a side portion of the side glass, a main element connected to the power feeding portion and a square bracket-shaped element whose one end is connected to some midpoint of the main element. When a frequency band of the FM broadcast wave received by the glass antenna is divided into two frequency bands with respect to its center frequency, a wavelength of a center frequency of frequency band of a low frequency is », and a wavelength of a center frequency of frequency band of a high frequency. Also a wavelength shortening coefficient of the side glass is ±. In this condition, either one of a length of the main element or a length from the power feeding portion up to an opening end of the square bracket-shaped element is set to ±·»·3/4, and the other is set to ±·»'·3/4. |
申请公布号 |
EP2713438(A1) |
申请公布日期 |
2014.04.02 |
申请号 |
EP20120804595 |
申请日期 |
2012.06.22 |
申请人 |
CENTRAL GLASS COMPANY, LIMITED |
发明人 |
TADOKORO, SHINGO;SUZUKI, TAKAYUKI |
分类号 |
H01Q1/32;H01Q1/12;H01Q5/00 |
主分类号 |
H01Q1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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