Patent ID: 7825865
Filing Date: 2010-11-02
Classification: H01Q

Abstract:
1. A glass antenna for an automobile, comprising: a plurality of antenna conductors disposed in or on a rear window glass sheet in a blank space which is adjacent to an electric heating defogger having a plurality of heater strips and a plurality of bus bars configured to feed a current to the heater strips, the plurality of antenna conductors comprising: a feeding point disposed in or on the rear window glass sheet in the blank space, the feeding point being connected to the H-oriented antenna conductor and the L-oriented antenna conductor with both of the first H-oriented antenna element and the second H-oriented antenna element electrically connected to the feeding point and extending in a direction away from a side of the feeding point, and with the first L-oriented antenna element and the second L-oriented antenna element electrically connected to the directivity-adjusting antenna element and extending from a side of the directivity-adjusting antenna element toward the side of the feeding point; a first capacitively-coupled portion formed by the first H-oriented antenna element and the first L-oriented antenna element being adjacent to each other and capacitively coupled to each other; and a second capacitively-coupled portion formed by the second H-oriented antenna element and the second L-oriented antenna element being adjacent to each other and capacitively coupled to each other.