Sub-coil in reader antenna for HF RFID volume detection improvment. - Marjorie Grzeskowiak; M. Benamara; P. Poulichet; P. Protat; Gaëlle Lissorgues; Antoine Diet; Marc Biancheri-Astier; Yann Le Bihan; Christophe Conessa; F. Alves (RFID-TA, 2017)