TY - CONF T1 - Passive UHF RFID-based User Interface on a Wooden Surface A1 - Mehmood, Adnan A1 - Vianto, Ville A1 - He, Han A1 - Chen, Xiaochen A1 - Ukkonen, Leena A1 - Virkki, Johanna JO - 2019 Photonics & Electromagnetics Research Symposium-Fall (PIERS-Fall) SP - 1760 EP - 1763 SN - 1728153042 Y1 - 2019 PB - IEEE ER -