Patent ID: 6873295

Claim:
An antenna for the reception of radio signals, the antenna including: an array of conductive elements formed on a window pane, the array including first and second busbars extending close to respective opposite edges of the pane and a plurality of generally parallel, spaced-apart heating elements interconnecting the busbars; each busbar being provided with a respective connection for DC power; a plurality of first interconnecting elements, each first interconnecting element extending between first and second heating elements and crossing at least one other heating element, each first interconnecting element being substantially linear and disposed such that, for each first interconnecting element, the length from the mid-point of a busbar to the point of connection of the first interconnection element with the first heating element, measured along the busbar and then along the first heating element, is approximately a distance of λ/4+n(λ/2) where n is an integer and n≧0 and λ is a selected wavelength from the band of signals to be received; and a plurality of second interconnecting elements, each second interconnecting element extending between first and second heating elements and crossing at least one other heating element, a second interconnecting element being provided for each first interconnecting element, wherein the first and second interconnecting elements are arranged into one, two or more pairs, each pair consisting of a first and a second interconnecting element.