Automobile windshield antenna incorporating windshield heater

Details Automobile windshield antenna incorporating windshield heater Automobile windshield antenna incorporating windshield heater

1992-02-05

1994-02-08

Reynolds, Bruce A.

Electric heating

Heating devices

Combined with diverse-type art device

343704, 343711, 343713, H01Q 132, H01Q 102

Patent

active

052850480

ABSTRACT:
An automobile antenna including a defogging heater wire and a conductor combined into a simple structure to accomplish a good FM reception. A capacitor which effects high-frequency grounding of the terminals of a defogging heater wire is installed between the terminals and a vehicle body; alternately, FM choke coils can be installed which prevents the heater wire from receiving high-frequency signals from a power source of the heater wire. The heater wire which resonates in the FM frequency band but not in the AM frequency band is inductively and capacitively coupled to the 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.

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patent: 5083134 (1992-01-01), Saitou et al.
patent: 5097270 (1992-03-01), Lindenmeier et al.
patent: 5119106 (1992-06-01), Murakami

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