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Title:
ANTENNA SYSTEM FOR AUTOMOBILE
Document Type and Number:
Japanese Patent JPS61103302
Kind Code:
A
Abstract:

PURPOSE: To receive a broadcast radio wave such as FM, TV or telephone call having a frequency, ≥50MHz by arranging closely a high frequency pickup made of a loop coil or a probe to a peripheral of a car body such as a rear window frame.

CONSTITUTION: The surface current induced in the car body itself by a broad cast wave has a high density at the ridge of the flat pat of the car body and since the rear window pat 34 has less noise from an engine or the like, the high frequency pickup 38 for broadcast wave reception is installed to the ridge. It is better to select the location within 12×10-3c/f m [(c) is the velocity of light and (f) is the carrier frequency of a broadcast wave] from the ridge of the car body, and the pickup is fixed by fixing L-shaped brackets 54, 56 to the rear window frame 34 with screws. Further, the high frequency pickup 38 is incorporated with a circuit such as a preamplifier and power and signals are fed through a cable 62. The received signal is extracted externally from a cable 60.


Inventors:
OE, Junzo
Kondo, Hiroshi
Application Number:
JP1984000226397
Publication Date:
May 21, 1986
Filing Date:
October 26, 1984
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
H01Q1/32; H01Q1/50; (IPC1-7): H01Q1/50
Domestic Patent References:
JPS5334826U1978-03-27
JPS5322418A1978-03-01



 
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