EXTREMELY MINIATURIZED FM FREQUENCY BAND ANTENNA

摘要

An extremely miniaturized FM frequency band antenna built in a mobile device includes a substrate and an antenna unit. The substrate is provided with a plate having a grounding metallic surface and a first clearance surface. A second clearance surface provided on the same side of the grounding metallic surface has a metallic micro strip line. One end of the metallic micro strip line extends to a bottom end of the second clearance surface and has a first contact. The other end of the micro strip line extends onto the first clearance surface and has a second contact. Further, a third contact is provided on the first clearance surface at a position corresponding to that of the second contact. Finally, the antenna unit is electrically connected on the second and third contacts to form a FM antenna for receiving FM signals.