Patent ID: 8217845
Filing Date: 2012-07-10
Classification: H01Q

Abstract:
1. A high frequency glass antenna for automobiles, wherein an electric heating defogger having a plurality of heating wires and a plurality of bus bars for feeding the heating wires, an antenna conductor, a feeding portion for the antenna conductor, a grounding conductor, and a grounding-side feeding portion for the grounding conductor are adapted to be disposed in or on a rear window glass sheet for automobiles in such a way that a signal received by the antenna conductor is taken out from the feeding portion for the antenna conductor, utilizing the grounding-side feeding portion as a ground reference, being characterized in that; the defogger forming at least one portion of the grounding conductor; and the grounding-side feeding portion being electrically connected to the defogger; wherein the feeding portion for the antenna conductor and the grounding-side feeding portions are each configured to be connected to a peripheral circuit for the antenna.