Patent ID: 8688033

Claim:
Antenna system, in particular mobile communication antenna system, comprising: at least two base stations, at least two antenna devices, at least one radio frequency feed line via which the transmission and/or reception signals are transmitted between the respective base stations and the associated antenna device, the antenna device being able to receive and/or transmit in at least one polarization plane, at least one antenna component, which is switched between the at least one radio frequency feed line and radiators in the at least one associated antenna device, wherein: at least one common radio frequency feed line supplying the at least two antenna devices, a base-station multiplexer circuit being associated with the at least two base stations, the base-station multiplexing circuit having a plurality of base-station radio frequency terminals, the multiplexer circuit having at least one radio frequency feed line terminal, the multiplexer circuit having a scanning device configured to scan the base-station terminals, one after another or simultaneously, and supply protocol signals detected at the base-station terminals at the radio frequency feed line terminal, and the multiplexer circuit being constructed in such a way that the protocol signals present at the at least one radio frequency feed line terminal and/or the transmission protocol present there is converted into different individual protocols for supply to the respectively associated base-station terminals, the at least two base stations are connected via a respective connection line to a respective input of the base-station multiplexer, the base-station multiplexer is connected via the radio frequency feed line terminal to the at least one feed line, at least one further multiplexer circuit is provided and comprises a terminal for connection to the at least one radio frequency feed line, the antenna multiplexer circuit comprises at least two antenna terminals, one antenna terminal being connected to one antenna device or an antenna component connected upstream from this antenna device and the at least one further terminal being connected to the further antenna device or to an antenna component connected upstream from this further antenna device, the control of the antenna device or the antenna components upstream from the antenna devices is controlled by protocol via the at least one common radio frequency feed line.