Antenna roof mount for vehicles
First Claim
1. An antenna roof mount for a vehicle having a roof portion with a thin integral layer of dielectric material existing on the roof portion which serves as the decorative coating of the roof portion, said roof mount comprising:
- a base plate for transverse positioning across said roof portion;
said base plate being nonconductively attached to said roof portion;
housing means coupled to said base plate, said base plate being substantially wider than said housing means, at least in the area of coupling between said housing means and said base plate, and of sufficient size to provide capacitive coupling between an antenna and the vehicle to provide a suitable ground connection for the antenna;
antenna means supported by and extending from said housing means;
a coaxial cable having an outer conductor connected to said housing means and an inner conductor connected to said antenna; and
mounting means for securing said base plate directly onto said integral dielectric material on the roof portion without any further dielectric material therebetween whereby the integral dielectric material also serves as coupling means for capacatively coupling said base plate to said roof portion.
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Accused Products
Abstract
A roof mount for coupling an antenna to the roof of a vehicle and simultaneously providing a capacitive coupling for grounding the antenna to the vehicle frame. The antenna is supported by a housing which is connected to a base plate which in turn fits transversely across the roof of the vehicle. The ends of the base plate are clamped onto the edges of the roof to be firmly held in place. The base plate is separated from the metallic roof either by a vinyl roof top or by a layer of paint, depending upon the type of vehicle. The base plate is then capacitively coupled to the vehicle for providing a ground to the antenna. The roof mount can accommodate various sized antennas and various types of feed through cables depending upon the equipment to which the antenna is connected.
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Citations
9 Claims
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1. An antenna roof mount for a vehicle having a roof portion with a thin integral layer of dielectric material existing on the roof portion which serves as the decorative coating of the roof portion, said roof mount comprising:
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a base plate for transverse positioning across said roof portion;
said base plate being nonconductively attached to said roof portion;housing means coupled to said base plate, said base plate being substantially wider than said housing means, at least in the area of coupling between said housing means and said base plate, and of sufficient size to provide capacitive coupling between an antenna and the vehicle to provide a suitable ground connection for the antenna; antenna means supported by and extending from said housing means;
a coaxial cable having an outer conductor connected to said housing means and an inner conductor connected to said antenna; andmounting means for securing said base plate directly onto said integral dielectric material on the roof portion without any further dielectric material therebetween whereby the integral dielectric material also serves as coupling means for capacatively coupling said base plate to said roof portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification