Glass antenna device for vehicle

Details Glass antenna device for vehicle Glass antenna device for vehicle

H - Electricity

01

Q

H01Q 1/32 (2006.01) B60J 1/00 (2006.01) B60R 16/02 (2006.01) H01Q 1/12 (2006.01) H01Q 21/28 (2006.01)

Patent

CA 2287452

A glass antenna device for a vehicle includes an FM reception antenna and an AM reception antenna both provided on a window glass of the vehicle, an AM-antenna-side impedance converter and a receiver-side impedance converter disposed at a different position from the window glass, a first coaxial cable interconnecting the two impedance converters, a receiver, and a second coaxial cable interconnecting the receiver-side impedance converter and the receiver. The distributed capacitance of the second coaxial cable is not in excess of 10 pF, so that the vehicle glass antenna device can reduce transmission loss at transmission lines, thus ensuring reception of AM signals at high sensitivity with little attenuation.

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