Patent ID: 7728785
Filing Date: 2010-06-01
Classification: H01Q

Abstract:
1. An antenna arrangement comprising: a first electrical terminal and a second electrical terminal, an electrical conductor forming an antenna loop having at least one electrically conductive path extending from the first electrical terminal to the second electrical terminal, the antenna loop being configured to operate as a loop antenna, an electrically conductive parasitic radiator in a substantially co-planar arrangement with the antenna loop, the electrically conductive parasitic radiator being arranged to couple with the antenna loop, said electrically conductive parasitic radiator having a length that is approximately one quarter of a wavelength at an operating frequency, and an electrically conductive tuner element in the vicinity of the antenna loop and the electrically conductive parasitic radiator, the distance between the electrically conductive tuner element and the antenna loop being at a distance to increase capacitive coupling between the antenna loop and the parasitic radiator.