Patent ID: 7548216
Filing Date: 2009-06-16
Classification: H01Q

Abstract:
1. An antenna operable to transmit or receive radio frequency signals at a specified frequency, the antenna comprising: a first printed circuit board comprising a first loop of conductive material having a capacitance and an inductance, the capacitance and the inductance forming a circuit being resonant at the specified frequency; and a second printed circuit board comprising a second loop of conductive material having two ends adapted to be electrically coupled to an electronic circuit, the second loop being substantially only magnetically coupled to said first loop and electrically insulated from the first loop; wherein the first printed circuit board is disposed in a first plane, the first printed circuit board having first and second opposed surfaces, the conductive material being disposed on said first and second surfaces, at least one electrically conductive path being provided between the first and second surfaces to form the first loop, whereby the first loop is disposed in a plane perpendicular to the first plane and electrical current flows in the first loop in the plane perpendicular to the first plane.