Antenna for a moist environment

摘要

Disclosed is an inductive antenna comprising an insulating substrate; a series of pairs of first conductive tracks that follow the form of a first planar winding on a first surface of the substrate; and a series of pairs of second conductive tracks that follow the form of a second planar winding on a second surface of the substrate facing the first winding. Each pair of first tracks defines, with the facing pair of second tracks, a resonant subassembly. The two first tracks of a same subassembly are not interconnected and each is electrically connected to one and only one other first track of only one another subassembly or to a terminal of the antenna. The second tracks of neighbouring pairs of two neighbouring subassemblies are not electrically interconnected. One end of each first track is either: a) electrically connected to one end of a second track of the concerned subassembly; or if unconnected b) the second tracks of the concerned subassembly are electrically interconnected.