Patent ID: 8174457

Claim:
A broadband antenna apparatus, for reception of signals located about a center frequency within the UHF television frequency band, generally disposed along a plane, comprising: a ground plate with an edge; an inverted “L” antenna having a base leg and an elongated leg with a combined length selected to approximately equal one quarter wavelength of the center frequency of the UHF television band, defining an interior corner, which is filled with a triangulated portion arranged to broaden the bandwidth of said inverted “L” by at least fifty percent, and having a feed point at a distal end of said base leg, and wherein said antenna is oriented with said distal end of said base leg adjacent to said edge with a first dielectric gap therebetween, and oriented with said elongated leg parallel to said edge; a first parasitic ground element extending from said edge and positioned adjacent to said base leg with a second dielectric gap therebetween, and selected to further increase the bandwidth of said inverted “L” antenna beyond said at least fifty percent; a second parasitic ground element extending from said edge, and selected to further increase bandwidth about said center frequency to continuously cover all channel frequencies falling within the UHF television frequency band.