SYSTEM AND MODULES FOR COMMUNICATION

Provided is a system (200, 200') for communication. The system comprises: a basic function module (210); at least one extended function module; a first near-field communication transceiving unit (230) and a first near-field communication antenna unit (250, 250'), which are located on the basic function module (210) ; and at least one second near-field communication transceiving unit and at least one second near-field communication antenna unit, which are located on each of the at least one extended function module, wherein the first near-field communication antenna unit (250, 250') and the at least one second near-field communication antenna unit respectively comprise a first loop antenna (252, 252') and a second loop antenna (262, 262'), which are printed on a printed circuit board.