Patent ID: 7865214
Filing Date: 2011-01-04
Classification: G06K

Abstract:
1. A radio communication terminal provided in a housing and being electronically shielded to prevent electromagnetic interference, the radio communication terminal comprising: an integrated circuit; a first resonant circuit connected to the integrated circuit to make non-contact communication with an external device, the first resonant circuit comprising a first loop coil; and a second resonant circuit resonating with the first resonant circuit, the second resonant circuit comprising a second loop coil, and the second resonant circuit not being electrically connected to the first resonant circuit, wherein the second loop coil has a loop area larger than the first loop coil and the second loop coil is arranged at an outer circumference of the first loop coil, the first loop coil is positioned on one side of the radio communication terminal, the second loop coil is positioned on the other side of the radio communication terminal, an electronic shielding member is interposed between the first and second loop coils, and the loop area is larger than the electronic shielding member.