Antenna for a moist environment

US9379442B2 · kind B2 · utility

Assignee

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventor

• Thierry Thomas · Montfermeil, FR

Key dates

• Filing date: Jun 14, 2011
• Grant date: Jun 28, 2016
• Expiry date: Jan 12, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q1/2225
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The invention relates to an inductive antenna, comprising: a first planar conductive winding (42) on a first surface of a substrate, said first winding being cut off at regular intervals so as to form a series of pairs of first conductors (522, 524; 542, 546; 562, 564); and a second planar conductive winding (44) on a second surface of the substrate, said second winding being provided opposite the first winding and cut off in a direction vertically perpendicular to that of the cutoffs of the first winding so as to form a series of pairs of second conductors (526, 528; 546, 548; 66, 568). Each pair of first conductors defines a resonant subassembly with the pair of second conductors opposite thereto, wherein each of the two first conductors of a single subassembly are electrically connected to another first conductor of another subassembly or to a terminal (41, 43) of the antenna, the second conductors of adjacent pairs are not electrically connected to each other, and one end (5224, 244, 5424, 5444, 5624, 5644) of each first conductor is either electrically connected (523, 543, 563, 525, 545, 565) to one end (5284, 5264, 5484, 5464, 5684, 5664) of a second conductor of the subassem…