a double f antenna is disclosed . in one embodiment , an antenna , comprises a conductive member having a center between a first end and a second end of the member ; a first port connected perpendicularly to the conductive member between the center and the first end ; a second port connected perpendicularly to the conductive member between the center and the second end ; and a ground port connected perpendicularly to the conductive member , wherein the ground port is connected to the center .