Patent ID: 8040289

Claim:
A radio frequency (RF) antenna structure comprising: a loading plate having a first length, a first width, a first end, a second end, a first planar conductive surface, and a first planar surface, such that the first length, the first width, the first planar conductive surface, and the first planar surface are about parallel to a ground plane; and a planar structure, which is about perpendicular to the first planar conductive surface, and comprising: a first conductive matching element having a second length, a second width, a third end, and a fourth end, such that the second length is about perpendicular to the first planar conductive surface, the second width is about parallel to the first length, the third end is adjacent to the first planar surface, the third end is electrically connected to the first planar conductive surface, the third end is biased towards the first end, and the fourth end is between the third end and the ground plane; a first conductive element having a third length, a third width, a fifth end, and a sixth end, such that the third length is about perpendicular to the first planar conductive surface, the fifth end is adjacent to the first planar surface, the fifth end is electrically connected to the first planar conductive surface, and the sixth end is between the fifth end and the ground plane; and a second conductive matching element having a fourth length, a fourth width, a seventh end, and an eighth end, such that the fourth length is about parallel to the first length, the seventh end is biased toward the sixth end, the seventh end is electrically connected to the first conductive element, and the eighth end is between the seventh end and the first conductive matching element, wherein the fourth end is adapted to transfer RF signals between the RF antenna structure and RF communications circuitry.