Patent ID: 6781547
Filing Date: 2004-08-24
Classification: H01Q

Abstract:
A planar inverted-F antenna (PIFA), comprising:a base board at least having a first surface and a second surface, wherein said first surface and said second surface are located on two opposite sides of said base board, said base board having: a circular hole, wherein said circular hole has a first radius and penetrates said base board; and a slot penetrating said base board, said slot having a first straight side and a second straight side that are parallel to each other, wherein both ends of said first straight side and both ends of said second straight side are respectively connected to a first arc and a second arc that are mirror-reflected to each other, and the convex surface of said first arc and the convex surface of said second arc face outwards, said first arc and said second arc being formed with a second radius; a first radiating conducting line having an inner side and an outer side, wherein said inner side and said outer side are located on said first surface, and are formed conformally around portion of said circular hole; a second radiating conducting line, wherein said second radiating conducting line is located on said first surface, and is formed conformally around portion of said first arc and portion of said first straight side; and a straight radiating conducting line located between said first arc and said circular hole, wherein one end of said straight radiating conducting line is connected simultaneously to one end of said first radiating conducting line adjacent to said slot and one end of said second radiating conducting line adjacent to said first arc, said straight radiating conducting line and said first radiating conducting line forming an opening located at the same side of the other end of said straight radiating conducting line.