| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device for suppressing the influence of a conductor connected to the antenna device even if the conductor has some displacement. SOLUTION: In a reception antenna 5, wire harnesses 30 to be connected to another device are connected to a substrate 7 equipped with an antenna 10 for receiving reception signals, a radio circuit 8 connected to the antenna 10 and an electronic circuit 9 different from the radio circuit 8. In the reception antenna 5, the radio circuit 8 and the electronic circuit 9 are disposed so as to be positionally independent on the substrate 7, and a pattern stub 23 of a pattern length enough to resonate at 1/4 wavelength of one wavelength of the reception signal is provided on a first pattern portion 21 of the substrate 7 having the radio circuit 8 provided thereon. COPYRIGHT: (C)2011,JPO&INPIT |
