Two element low profile antenna

Claim 1

A miniaturized, low profile antenna especially suited for use with hand held, portable electronic apparatus, comprising in combination: a ground plate having a surface; an elongated passive element with a longitudinal axis oriented substantially parallel to said ground plate surface and situated at a first given distance above said ground plate surface, said passive element having one end connected to said ground plate surface and the other end standing free; and an elongated driven element situated substantially adjacent and spaced apart from said passive element in a plane substantially parallel to said ground plate surface at second given distance, said driven element having a mid portion oriented substantially parallel to said passive element, a first end portion extending angularly inward from said mid portion to a point constituting the antenna feedpoint, said feedpoint being adjacent to, but isolated from, said ground connection of said passive element, and a second end portion first extending angularly inward from said mid portion and then parallel to said passive end portion, said second end portion of said driven element being free standing, said antenna having low impedance coupling between said feedpoint and passive element ground connection and a high impedance coupling between said free standing ends of said passive and driven elements, which couplings may be adjusted to provide a desired operational bandwidth exhibited by the antenna.