Telefonaktiebolaget LM Ericsson (publ)
Multi-antenna communication data-converter clocking

Abstract:

A communication circuit (20) for communication via multiple antenna elements (10.sub.j) of a communication apparatus (2) is disclosed. The communication circuit (20) comprises a plurality of communication units (30.sub.j) configured to communicate simultaneously in the same frequency band. Each communication unit (30.sub.j) of said plurality of communication units (30.sub.j) is arranged to be connected to a separate antenna element (10.sub.j) and comprises a data converter (90, 120). The data converters (90, 120) of the plurality of communication units (30.sub.j) together form a set of data converters. Furthermore, the communication circuit (20) comprises a clock-signal generation circuit (50) configured to generate a distinct sampling clock signal at a distinct sampling clock frequency (f.sub.sj) to each data converter (90, 120) in the set of data converters.