Patent ID: 9041606
Filing Date: 2015-05-26
Classification: H01Q

Abstract:
1. An antenna configuration for a handheld device, comprising: an uninterrupted bezel forming an outer perimeter electrically conductive member of the handheld device; a substantially planar electrically conductive mass disposed within the handheld device forming a contiguous slot between the planar electrically conductive mass and the uninterrupted bezel, wherein the uninterrupted bezel surrounds the planar electrically conductive mass disposed within the same plane as the uninterrupted bezel; a slot formed in the uninterrupted bezel; a notch realized on the substantially planar electrically conductive mass; a feed element disposed within the contiguous slot, wherein the feed element is capacitively coupled to the uninterrupted bezel; a feed point that connects the feed element to a radio frequency circuit of the handheld device, the feed point being coupled to the feed element at a point on the uninterrupted bezel which forms an asymmetrical feeding arrangement wherein the feed point is off-center relative to the feed element, a first portion of the feed element being located on one side of the feed point and a second portion of the feed element being located on another side of the feed point, the first portion being larger than the second portion, the asymmetrical feeding arrangement being driven to operate the antenna in a differential mode or driven to operate the antenna in a common mode in response to operating frequencies applied to the feed point and resulting establishment of an electrical charge distribution over the antenna configuration; and a loading impedance providing shunt loading of the slot formed in the uninterrupted bezel, wherein the shunt loading controls matching of the bezel to a predetermined radio frequency band.