ENCAPSULATED EMBEDDED TIRE SENSOR UNIT

An encapsulated sensor unit for embedding in a tire (120) is disclosed. The encapsulated sensor unit (100 comprises a sensor portion (102); an antenna portion (104); a first encapsulating layer (106) disposed about the sensor portion (102); a second encapsulating layer (112) disposed about the first encapsulating layer (106) and the antenna portion (104); and a third encapsulating layer (116) disposed about the second encapsulating layer (112). Also, a tire comprising such a sensor unit (100) is disclosed and a method of manufacturing a tire comprising inserted the sensor unit (100) into the tire (100) before curing of the tire.