Glass antenna for automobiles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 20, 1996
Issued Date -
N/A
app pub date -
Nov 29, 1993
filing date -
Feb 5, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automobile antenna including a defogging heater wire and a conductor combined into a simple structure to accomplish a good FM reception. An FM choke coil which insulates in view of high-frequency the heater wire from the power supply circuit is installed between the heater wire terminal and the power supply circuit for the heater wire, and the heater wire which resonates in FM frequency band but not in AM frequency band is capacitively coupled to a conductor which is installed on the surface of the window glass and resonates in the FM frequency band but not in the AM frequency band. The heater wire and conductor are installed in such a positional relationship that a double resonance is created.
First Claim
Family
International Classification(s)
Cited Art Landscape
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