2011 2Nd Ieee Rfid Technologies and Applications Conference, Rfid-Ta 2011, Collocated with the 2011 Ieee Mtt-S International Microwave Workshop Series on Millimeter Wave Integration Technologies, Imws 2011, Date: 15 September 2011 through 16 September 2011, Location: Sitges, Patrocinadores: IEEE Technical Committee on RFID (CRFID)