MULTI BAND ANTENNA DEVICE AND A RADIO COMMUNICATION DEVICE INCLUDING THE MULTI BAND ANTENNA

摘要

An embodiment of the present invention relates to a multi-band antenna device in which a first frequency band antenna and a second frequency band antenna can be simultaneously designed within a single radio communications device. The multi-band antenna device comprises: a first band antenna unit which communicates with a first frequency band signal; a first band driving circuit unit connected to the first band antenna unit to perform signal processing on a first frequency band signal communicating in the first band antennal unit; a second band driving circuit unit connected to the first band antenna unit to perform signal processing on a second frequency band signal lower than the first frequency band signal; and a first inductor unit connected between one end of the first band antenna unit and the second band driving circuit unit to function as an inductor.