EP 3497774 A1 20190619 - MINIATURIZED HIGHLY-EFFICIENT DESIGNS FOR NEAR-FIELD POWER TRANSFER SYSTEM
Title (en)
MINIATURIZED HIGHLY-EFFICIENT DESIGNS FOR NEAR-FIELD POWER TRANSFER SYSTEM
Title (de)
MINIATURISIERTE HOCHEFFIZIENTE ENTWÜRFE FÜR EIN NAHFELD-ENERGIEÜBERTRAGUNGSSYSTEM
Title (fr)
CONCEPTIONS MINIATURISÉES EXTRÊMEMENT EFFICACES POUR SYSTÈME DE TRANSFERT D'ÉNERGIE EN CHAMP PROCHE
Publication
Application
Priority
- US 201662374578 P 20160812
- US 201615269729 A 20160919
- US 2017046800 W 20170814
Abstract (en)
[origin: WO2018032009A1] Disclosed herein are embodiments of near-field power transfer systems that include antenna elements that are constructed or printed close to each other in a meandered arrangement. In a meandered arrangement, neighboring antenna elements conduct currents that flow in opposite directions. This current flow entirely or almost entirely cancels out any far field RF radiation generated by the antennas or otherwise generated by the electromagnetic effects of the current flow. In other words, for a first current flowing in a first path, there may be a second current flowing in a second cancellation path, which cancels the far field radiation produced by the first current flowing in the first path. Therefore, there may be no radiation of power to the far field. Such cancellation, however, may not occur in a near-field active zone, where the transfer of power may occur between the transmitter and the receiver. Furthermore, a ground plane may block the leakage of power from the back of a transmitter and/or a receiver.
IPC 8 full level
H02J 5/00 (2016.01)
CPC (source: EP KR)
H01Q 7/00 (2013.01 - KR); H01Q 9/27 (2013.01 - KR); H01Q 9/285 (2013.01 - KR); H01Q 9/40 (2013.01 - KR); H02J 50/23 (2016.02 - EP KR); H02J 50/70 (2016.02 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018032009 A1 20180215; CN 109874351 A 20190611; CN 109874351 B 20210716; EP 3497774 A1 20190619; EP 3497774 A4 20190814; JP 2019531682 A 20191031; JP 6770172 B2 20201014; KR 102089375 B1 20200317; KR 20190032600 A 20190327
DOCDB simple family (application)
US 2017046800 W 20170814; CN 201780062480 A 20170814; EP 17840412 A 20170814; JP 2019507785 A 20170814; KR 20197007062 A 20170814