Electromagnetic field generation device for a transponder
First Claim
1. A device for generating an electromagnetic field of a first oscillating circuit excited by a high-frequency signal, including, at a distance from the first oscillating circuit, a second passive, unloaded and coreless oscillating circuit, forming an element for concentrating the magnetic flux intended to be received by a transponder by a third oscillating circuit.
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Accused Products
Abstract
A device for generating an electromagnetic field by a first oscillating circuit excited by a high-frequency signal, including, at a distance from the first oscillating circuit, a second passive, unloaded and coreless oscillating circuit, forming an element for concentrating the magnetic flux intended to be intercepted by a transponder by a third oscillating circuit.
101 Citations
13 Claims
- 1. A device for generating an electromagnetic field of a first oscillating circuit excited by a high-frequency signal, including, at a distance from the first oscillating circuit, a second passive, unloaded and coreless oscillating circuit, forming an element for concentrating the magnetic flux intended to be received by a transponder by a third oscillating circuit.
Specification