Abstract: An antenna array and method of operation are disclosed for providing a very thin antenna arrangement with large coverage area for RFID applications and long distance sensitivity. The antenna arrangement comprises two or more antenna elements, each element comprises a planar spiral of conductive material with a feed terminal at one end of the spiral and preferably at its outer end. Each adjacent couple of antenna elements may be arranged with the direction of rotation of their spiral being in opposite directions. Each antenna element may be fed with RFID signal independently from the other antenna elements and preferably the antenna elements are fed one at a time.