Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yuji Sugimoto0
Masaaki Hisada0
Toru Yamazaki0
Toshihiro Hattori0
Koji Numata0
Date of Patent
January 27, 2009
0Patent Application Number
115809840
Date Filed
October 16, 2006
0Patent Primary Examiner
Patent abstract
An antenna is mounted in a vehicle for receiving a radio wave of a specified wavelength, and an electronic device such as a meter device is mounted in the vehicle. The electronic device tends to generate radiation noise when being operated. To reduce reception of the radiation noise by the antenna, a passive conductor element is located between the antenna and the electronic device to reflect a part of the radiation noise. The passive element is away from the electronic device by a distance that is about multiple times of one-quarter of the specified wavelength and is about multiple times of one-half of the specified wavelength in length.
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