Patent ID: 6667717
Filing Date: 2003-12-23
Classification: H01Q

Abstract:
A planar inverted F antenna comprising:an insulator plate having a top and a bottom surface; a radiation device formed on the top surface of the insulator plate; a grounding plate formed on the bottom surface of the insulator plate; and a coaxial cable having a central conductor electrically connected to the radiation device and an outer conductor having a first outer conductor connecting point and a second outer conductor connecting point separated by a first distance electrically connected to the grounding plate; having a first grounding plate connecting point and a second grounding plate connecting point separated by a second distance; wherein said first outer conductor connecting point is electrically connected to said first grounding conductor plate, said second outer conductor connecting point is electrically connected to said second grounding conductor plate, and said first distance and said second distance are approximately a quarter of a wavelength of a current flowing through said outer conductor.