Patent ID: 9626614
Date: 2017-04-18
CPC Classifications: G06K

Claim:
1. An antenna circuit coupleable to a device of transmission/reception by inductive coupling, comprising: a first inductive element electrically coupled in a parallel association with a capacitive element, the parallel association having a first node directly connected to a first end of the first inductive element and a first end of the capacitive element, the parallel association having a second node directly connected to a second end of the second inductive element and a second end of the capacitive element; a first dual purpose inductance electrically coupled directly between the first node of the parallel association and a first terminal of a switch; and a second dual purpose inductance electrically coupled directly between the second node of the parallel association and a second terminal of the switch, the first and second dual purpose inductances configurable by the switch to cooperate as a second inductive element in the parallel association.