Abstract Disclosed is a pane antenna installed in a heated window pane of a motor vehicle to receive frequencies above the high frequency range. The antenna includes at least one wire-shaped first antenna conductor extending across parallel heating conductors of a heating field. The crossing points of the first antenna conductor with heating conductors are preferably in galvanic contact to create a capacitive antenna region along the first antenna conductor. The capacitive antenna region is coupled via a second antenna conductor extending also perpendicularly to the heating conductors, to an antenna terminal arranged on the window pane in proximity to a rim. The window pane is surrounded by a conductive frame and a grounding point is created on the frame opposite the antenna terminal.
A pane antenna for a very high and/or ultra-high frequency range comprising a field of parallel heating conductors arranged on a window pane between two transverse busbars for applying direct current to the heating conductors; at least one wire-shaped first antenna conductor crossing at right angles at least a part of said field of heating conductors, said first antenna conductor and said parallel heating conductors being coupled at a low impedance for an effective frequency range in the region of their crossing points to create a capacitive antenna region adjoining said crossing points; an antenna terminal provided on said window pane outside said field of heating conductors; and a wireshaped second antenna conductor connected at one end thereof to said antenna terminal and, at the other end thereof, being coupled at a low impedance for said effective frequency range to said first antenna conductor, section of said heating conductors between said capacitive antenna region and a busbar have a meander-like configuration.
Claim 2
Dependent Claim
161 words
A pane antenna for a very high and/or ultra-high frequency range comprising a field of parallel heating conductors arranged on a window pane between two transverse busbars for applying direct current to the heating conductors; at least one wire-shaped first antenna conductor crossing at right angles at least a part of said field of heating conductors, said first antenna conductor and said parallel heating conductors being coupled at a low impedance for an effective frequency range in the region of their crossing points to create a capacitive antenna region adjoining said crossing points; an antenna terminal provided on said window pane outside said field of heating conductors; and a wireshaped second antenna conductor connected at one end thereof to said antenna terminal and, at the other end thereof, being coupled at a low impedance for said effective frequency range to said first antenna conductor, section of said heating conductors between said capacitive antenna region and a busbar have a meander-like configuration.