Device having a multimode antenna with variable width of conductive wire

A device comprising:

• a flexible substrate comprising at least two substrate layers;
• a first coil having first and second coil ends, wherein the first coil comprises at least one conductive trace with a plurality of turns, wherein a first conductive trace of the at least one conductive traces of the first coil is disposed on a first substate layer of the at least two substrate layers;
• and
• a second coil having third and fourth coil ends, wherein the second coil is electrically connected in series with the first coil at a junction point between the second coil end of the first coil and the third coil end of the second coil, and wherein the second coil comprises at least two conductive traces, each trace of the at least two conductive traces having a plurality of turns,
• wherein at least one substrate layer of the at least two substrate layers is positioned between each of the at least two conductive traces of the second coil,
• wherein a first conductive trace of the at least two conductive traces of the second coil is disposed on the first substrate layer of the at least two substrate layers,
• wherein the second coil includes at least one connector connecting the at least two conductive traces, and
• wherein the at least two conductive traces have (i) a first turn comprising a varying first width in a first range, and (ii) a second turn comprising a varying second width in a second range, wherein the second range is different than the first range;
• and
• first, second, and third terminals that are physically available for connection with circuitry, wherein each of the first, second, and third terminals is configured to connect to one of the first coil end of the first coil, the fourth coil end of the second coil, or the junction point,
• wherein the device is capable of operating in at least two operating modes comprising:
• (i) a first operating mode in which a conducting path is formed across a first pairwise combination of two of the first, second, or third terminals such that electrical current flows through both the first coil and the second coil that are electrically connected in series via the junction point, wherein the device has a first inductance while placed in the first operating mode,
• (ii) a second operating mode in which a conducting path is formed across a second pairwise combination of two of the first, second, and third terminals such that electrical current flows through the second coil but not the first coil, wherein the device has a second inductance while placed in the second operating mode, and
• (iii) a third operating mode in which a conducting path is formed across a third pairwise combination of two of the first, second, and third terminals such that electrical current flows through the first coil but not the second coil, wherein the device has a third inductance while placed in the third operating mode,
• wherein the at least two operating modes includes the first operating mode and at least one of the second operating mode or the third operating mode.