The defence will present a synthesis of R&D work of Marjorie Grzeskowiak to contribute to the design of passive RF, microwave and millimeter devices since her recruitment as Associate Professor at the end of 2000. The presented work focus on the industrial (RFID) and medical (ingestible capsule, traceability of surgical instruments) applications : RF antennas (2.4GHz, 5.8 GHz) allowing the systems to be standalone and/orreconfigurable.•Low loss transmission lines, transitions and filtrers on Silicon at 60GHz.•Classic inductive coupling, inductive coupling by magnetic resonance (125 kHz,13.56 MHz), complementary loops to allow a volume detection of the object tobe detected, but also its localisation and optimization of energy transfer to thisobject.