A novel radio frequency transponder (tag) with a minimum of components and connects is thin and flexible because these components and connects can be unsupported by a substrate layer. This is accomplished by using a conducting leadframe structure not only as a connection medium but also as a...http://www.google.es/patents/US5786626?utm_source=gb-gplus-sharePatente US5786626 - Thin radio frequency transponder with leadframe antenna structure
Thin radio frequency transponder with leadframe antenna structure
