The invention relates to a communication device for arranging in an aircraft cabin, said device comprising: an antennae assembly designed so as to emit and receive communication data in a first frequency band of a communication network and to receive localization data in a second frequency band of a localization network, said antennae assembly comprising an antenna having a pattern of radiation revolving about a main axis, the radiation being at its maximum in the direction of said main axis, and a system for restraining the radiation, designed to limit the radiation outside said antenna axis; a modem connected to the antenna, designed so as to allow the emission and the reception of communication data via a communication network; and a localization data receiver.