Patent ID: 7712672

Claim:
An antenna module comprising: a substrate having a communication surface opposite a main surface; a first antenna coil disposed on the communication surface of the substrate and configured to communicate with a reader/writer; a second antenna coil disposed on the main surface of the substrate inside the first antenna coil and configured to communicate with an IC tag; a magnetic sheet bonded to the main surface of the substrate and the second antenna coil; and a metallic plate bonded to the main surface of the substrate via the magnetic sheet, wherein, the first antenna coil and second antenna coil are separated by a distance which prevents magnetic coupling of the two antenna coils, the first antenna is configured to communicate over a wider range of frequencies than the second antenna, and the second antenna is configured to communicate over a longer distance than the first antenna, and the second antenna coil is disposed between the magnetic sheet and the main surface of the substrate.