Vehicle antenna system for multiple vehicle electronic components
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 15, 2002
Grant Date -
N/A
app pub date -
Jun 27, 2000
filing date -
Jun 30, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An antenna system includes a diplexer connected to at least two vehicle electronic components which communicate through signals in spaced apart frequency bands. The antenna is coupled to the diplexer at a common branch. The radio is connected to a first equipment branch of the diplexer by a first transmission line and the RKE system is connected to a second equipment branch of the diplexer unit by a second transmission line. In a preferred embodiment, the first transmission line is of a length equal to one forth the wavelength of the second signal, while the second transmission line is of a length equal to one forth the wavelength of the first signal. Accordingly, by relating the length of the first and second transmission lines, each operates as a short in relation to the signal carried by the other which substantially eliminates attenuation.
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Family
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Cited Art Landscape
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