Improved planar litz coil; associated manufacturing method and computer program product
The 3D planar Litz coil addresses high-frequency resistive losses by ensuring uniform current distribution through a modular, hierarchical structure, enhancing power density and performance in high-frequency applications.
WO2026125576A1PCT designated stage Publication Date: 2026-06-18THALES SA
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- THALES SA
- Filing Date
- 2025-12-11
- Publication Date
- 2026-06-18
Smart Images
Figure EP2025086545_18062026_PF_FP_ABST
Abstract
The invention relates to a coil resulting from the stacking of at least two double-sided elements, each double-sided element comprising two conductive layers etched so as to form tracks. This coil comprises a bundle comprising a plurality of strands, each strand (50) comprising at least one wire, each wire comprising one filament or one pair of filaments, each filament resulting from the connection of a plurality of tracks. Each strand results from combining unit elements (51, 52, 53, 54) identical to one another, a unit element comprising an active central zone (51-2), an interconnect zone (51-1) and an exchange zone (51-3), an electrical connection of two unit elements being made by interconnect vias (21, 26) between either the interconnect zones when the two unit elements do not belong to the same double-sided element or the exchange zones when the two unit elements do belong to the same double-sided element.
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