Passive visor antenna
First Claim
Patent Images
1. A vehicle visor comprising:
- a visor body having an exterior surface, said body including a recess for receiving an RF transmitter;
a strip of conductive material mounted to said exterior surface of said visor body in proximity to said recess for defining a passive radiator; and
an upholstery covering said visor body and strip of conductive material.
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Abstract
A visor or other vehicle housing of the present invention RF couples signals from a remote RF garage door opening transmitter located in a visor, for example, to a 1/4 wave passive antenna, which in the preferred embodiment includes a thin foil strip extending along the longitudinal length of the visor. Such an antenna thereby creates an improved radiation pattern having improved radiation strength in the forward facing direction of the vehicle.
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Citations
23 Claims
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1. A vehicle visor comprising:
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a visor body having an exterior surface, said body including a recess for receiving an RF transmitter; a strip of conductive material mounted to said exterior surface of said visor body in proximity to said recess for defining a passive radiator; and an upholstery covering said visor body and strip of conductive material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vehicle visor and a passive antenna comprising:
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a visor body having an exterior surface, said body including a bracket for mounting said visor body to a vehicle; an RF transmitter mounted to said visor body and including a built-in antenna; a passive radiating antenna mounted to said exterior surface of said visor body and RF coupled to said built-in antenna of said transmitter; and an upholstery covering said visor body and strip of conductive material. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification