Contactless smartcard integration in portable consumer devices

13.56 MHz contactless smartcard systems n ie~ge the smor./card srcrrrify capabilities with the /ircilify of irriug a ioire1e.s.s inteifuce ,/or the dail,v rise in applications s i c h as: acce .~ M I I ~ K I I , ticketing, e-ptme and e-citke,~. Their intfgratiun in portable consimer devices like mobile phones, PDA. laptops and cameras provide a lowcost enhanced secttri@ cormectivitj~ sointion, complementary to the Bliietoorh atid IEEE X02. I I standards for short-range tr.ansactions. 117 this paper we present an overview of' this emerging technolog?', highlighting the 13.56 MHr RF stage behaviour in a mohile phone. We hniid an electrical modcl /iir the hondser, so that ifs in/lrrence corild be taken into accotint when designing the corresponding contactless smartcard antenna. Index Terms Contactless smartcard, RFlD