Glass antenna for vehicle
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United States of America Patent
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-
Dec 12, 2017
Issued Date -
N/A
app pub date -
Jun 22, 2012
filing date -
Jun 27, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A glass antenna provided on vehicle side glass has a power feeding portion disposed at 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 frequency band of FM broadcast wave received by the antenna is divided into two frequency bands with respect to its center frequency, wavelength of center frequency of frequency band of low frequency is λ, and wavelength of center frequency of frequency band of high frequency. Also wavelength shortening coefficient of the side glass is α. In this condition, either one of length of the main element or length from the power feeding portion up to an opening end of the square bracket-shaped element is set to α·λ·¾, and the other is set to α·λ′·¾.
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Family
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Cited Art Landscape
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