Patent ID: 8081122

Claim:
An antenna comprising: an electrically insulating carrier substrate having a first surface and a second surface; a first ground plane partially covering at least one of said first or second surfaces of said carrier substrate; an electrically insulating block mounted on said first surface of said carrier substrate so that a first end of said electrically insulating block is located near said first ground plane, said electrically insulating block having a first face facing said first surface of said carrier substrate, and an opposite second face facing away from said first surface of said carrier substrate; a feed line provided on one of said first or second surfaces of said carrier substrate; a feed point located near said first end of said electrically insulating block; a first electrically conductive lamina section located on said first face of said electrically insulating block; and a second electrically conductive lamina section located on said second face of said electrically insulating block, wherein said first and second lamina sections are electrically connected together at a second end of said electrically insulating block, said second end being substantially opposite said first end of said electrically insulating block, said second lamina section is shaped to define at least two slots, said at least two slots extending from opposite sides of said second electrically conductive lamina section and being interleaved so as to define a non-linear current path in said second lamina section between said first and second ends of said electrically insulating block, an end of said second lamina section that is adjacent to said first end of said electrically insulating block is electrically connected to said first ground plane, a second ground plane provided on one of said first and second surfaces of said carrier substrate, said second ground plane extending adjacent to and spaced apart from a side of said electrically insulating block, said second ground plane protruding from, and being electrically connected to, said first ground plane, and said first ground plane is divided into first and second sections located on opposite sides of said feed line, said second ground plane extending from said second section of said first ground plane, and wherein an electrically conductive connector electrically connects said second lamina section to said second section of said first ground plane.