Patent ID: 9105966
Filing Date: 2015-08-11
Classification: H01Q

Abstract:
1. A user device comprising: a slot antenna to radiate electromagnetic energy, wherein the slot antenna comprises a first elongated opening and a second elongated opening in conductive material, the first elongated opening and second elongated opening disposed in a first axis, wherein the first elongated opening has a first length from a proximal end to a distal end in the first axis, the first length being greater than a first width in a second axis perpendicular to the first axis, wherein the second elongated opening has a second length from a proximal end to a distal end in the first axis, the second length being greater than a second width in the second axis, wherein the first elongated opening and the second elongated opening have rectangular shapes; a non-radiating exciter operatively coupled to feed the slot antenna, wherein the non-radiating exciter comprises a third opening in the conductive material, wherein the third opening is co-planar with the first elongated opening and second opening, wherein the first elongated opening and second elongated opening are symmetrical in shape with respect to the third opening, and wherein the first elongated opening, the second elongated opening and the third opening are a single slot opening in the conductive material; and a feed line coupled to the non-radiating exciter at a feeding point, wherein the non-radiating exciter comprises a first curved portion that extends from the feeding point in a curved manner to the proximal end of the first elongated opening and a second curved portion that extends from the feeding point in a curved manner to the proximal end of the second elongated opening, wherein the non-radiating exciter is driven by the feed line and the non-radiating exciter excites a current flow associated with the antenna to virtually expand a current surface of the antenna such that a bandwidth of the antenna is increased, and wherein the non-radiating exciter does not radiate the electromagnetic energy.