CPC G06K 7/10366 (2013.01) [A61B 5/6852 (2013.01); G01N 33/587 (2013.01); G01R 33/0011 (2013.01); G01R 33/04 (2013.01); G06K 19/06187 (2013.01); H01Q 1/14 (2013.01); H01Q 1/38 (2013.01); H01Q 15/006 (2013.01); H01Q 19/005 (2013.01); A61B 2562/0223 (2013.01)] | 20 Claims |
1. A method comprising:
applying a magnetic field to an identification tag comprising a plurality of magnetic nanowires (MNWs);
directing a first radio frequency signal to the identification tag comprising the plurality of MNWs while the identification tag is subject to the magnetic field;
detecting absorption of a radio frequency resulting from the first radio frequency signal passing by the plurality of MNWs of the identification tag;
determining, based on the radio frequency absorption, a ferromagnetic resonance (FMR) characteristic of the plurality of MNWs of the identification tag; and
identifying, based on the FMR characteristic, a presence of the plurality of MNWs of the identification tag.
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