Patent ID: 8912966
Filing Date: 2014-12-16
Classification: H01Q

Abstract:
1. A dual-band antenna for transmitting or receiving radio frequency signals in a lower frequency and a higher frequency, the antenna comprising: a conductive plane; a slot in the conductive plane, the slot having first, second and third branches emanating from a common point within the conductive plane; the first branch having an end open at an edge of the conductive plane; and the second and third branches each having a closed end, wherein the perimeter of the conductive plane, excluding the perimeter of the slot, is equal to or exceeds the wavelength of the lower frequency, wherein a portion of the second branch is in parallel with the first branch, wherein the remainder of the second branch is perpendicular to the first branch and to the portion of the second branch that is in parallel with the first branch, and wherein relative lengths of the first, second and third branches are 8.25, 14.5 and 9.25.