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Pub. No.:    WO/2015/185680    International Application No.:    PCT/EP2015/062491
Publication Date: Fri Dec 11 00:59:59 CET 2015 International Filing Date: Fri Jun 05 01:59:59 CEST 2015
IPC: H04B 1/40
H04B 7/02
H04B 7/06
Applicants: AIRRAYS GMBH
Inventors: AUE, Volker
GRIEGER, Michael
FEHSKE, Albrecht
The invention relates to a modular antenna system and a method for signal processing using the said modular antenna system. The object of the invention is to overcome the missing scalability of conventional antenna arrays and an improvement of the overall antenna array performance as well as a possibility for individually replacing defect or not reliably operating radio-units or radio-subunits in modular antenna array systems and providing a calibration procedure which can be adapted to a scalable antenna array. This is solved by a modular antenna system comprising a base station, at least one radio-unit comprising at least two radio-subunits, each radio-subunit comprising a radio-module and an antenna-module whereas said radio-module comprising a digital signal-processing unit, at least a transceiver, a front-end and a power amplifier, wherein the at least two radio-subunits provide an identical architecture and are modularly connected together via a connector interface and each radio-subunit has an own IQ-input and an own IQ-output.