Layout for automotive window antenna
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United States of America Patent
Stats
-
Feb 17, 2004
Grant Date -
Oct 23, 2003
app pub date -
Apr 23, 2002
filing date -
Apr 23, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved wire pattern layout for a window antenna that takes into account the characteristics of radio frequency current flow and the impact of a heater grid pattern. The wire pattern layout comprises a heating grid that is adapted to be in electrical communication with a DC power source. A plurality of antenna wires traverse the heating grid. The antenna wires are adapted to be in electrical communication with a feed to a radio frequency device such as an AM radio, a FM radio, an AM/FM radio, a CB radio, a cellular phone, a global positioning system, or combinations thereof. The antenna wires may extend across the heating grid in substantially straight lines or in a step-wise fashion. In addition, the antenna wires may change direction while traversing the heating grid. By taking into account the characteristics of radio frequency current flow and the impact of a heater grid pattern, the improved design of the wire pattern layout provides enhanced directional gain and impedance characteristics.
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