Patent ID: 6967624
Filing Date: 2005-11-22
Classification: H01Q

Abstract:
1. A radiating element, comprising: an electrically conductive first plate defining a through aperture and also defining a slot extending from said aperture to an edge of said plate, said slot having a transverse dimension in the plane of said first plate which dimension increases monotonically with increasing distance between said aperture and said edge of said first plate; an electrically conductive second plate defining a second through aperture identical to said through aperture of said first plate, and also defining a second slot extending from said second through aperture to an edge of said second plate, said second slot having transverse dimensions in the plane of said second plate which are identical to those of said transverse dimensions of said slot of said first plate, said first and second plates being spaced apart with said through aperture and said slot of said second plate being registered with said through aperture and said slot of said first plate; a feed element including a strip conductive element lying midway between said plane of said first plate and said plane of said second plate, said feed element extending across said slots at a location removed from said through apertures and from said edges of said first and second plates.