2022,11,10 Metasurface-Inspired Maintenance-Free IoT Tags Characterised in Both Frequency and Time Domains Masaya Tashiro, Ashif Aminulloh Fathnan, Yuta Sugiura, Akira Uchiyama, Hiroki Wakatsuchi Electronics Letters,Vol. 58,No.25,937 - 939,2022-11-21.