Abstract: The invention relates to a device (1) for emitting energy by electromagnetic coupling which comprises: a single generator (5) outputting an AC electric signal between two terminals; a series of resonant modules (2i) each including a capacitor and a first inductance, and first to fourth terminals (Ai, Bi, Ci, Di), the first (Ai) and second (Bi) terminals of a first module being connected to terminals of the generator, and the first (Ai) and second (Bi) terminals of the other module or modules being connected to the third (Ci) and fourth (Di) terminals of the module of the previous row.

Abstract: The invention relates to a device (1) for emitting energy by electromagnetic coupling which comprises: a single generator (5) outputting an AC electric signal between two terminals; a series of resonant modules (2i) each including a capacitor and a first inductance, and first to fourth terminals (Ai, Bi, Ci, Di), the first (Ai) and second (Bi) terminals of a first module being connected to terminals of the generator, and the first (Ai) and second (Bi) terminals of the other module or modules being connected to the third (Ci) and fourth (Di) terminals of the module of the previous row.

Abstract: The invention relates to a receiver (3) furnished with a resonant antenna with inductive coupling, comprising: an inductive antenna circuit (A3); a circuit powered by the inductive antenna circuit and which can be modelled by a capacitor (C3) and a resistor (R3) which are connected in parallel with the antenna circuit. The inductive antenna circuit comprises at least two conducting loops (L1, L2) connected electrically in parallel, disposed in parallel surfaces and exhibiting substantially zero mutual inductance.

Abstract: Each device (1a, 1b, 1c) comprises a processing circuit connected to a first antenna (4), designed to be coupled to an external antenna (3, 5), and a second antenna (5) designed to be coupled to an antenna (4) of a higher-ranking device (1). The system comprises a reading unit and devices (1) having a predetermined ranking. The first antenna (4a) of the rank one device (1a) is coupled to an antenna (3) of the reading unit. Addressing by the reading unit of a device (1c) ranking higher than one is performed by means of the associated lower-ranking devices (1a, 1b). A device (1a1) of predetermined ranking is associated with a sub-set (8a) of higher-ranking devices (1b11, 1b12) so as to form a hierarchical tree structure.

Abstract: Each device (1a, 1b, 1c) comprises a processing circuit connected to a first antenna (4), designed to be coupled to an external antenna (3, 5), and a second antenna (5) designed to be coupled to an antenna (4) of a higher-ranking device (1). The system comprises a reading unit and devices (1) having a predetermined ranking. The first antenna (4a) of the rank one device (1a) is coupled to an antenna (3) of the reading unit. Addressing by the reading unit of a device (1c) ranking higher than one is performed by means of the associated lower-ranking devices (1a, 1b). A device (1a1) of predetermined ranking is associated with a sub-set (8a) of higher-ranking devices (1b11, 1b12) so as to form a hierarchical tree structure.