Abstract: Redundancy architectures for communications systems are provided. An example redundancy architecture includes a plurality of active radio-frequency (RF) hardware units, one or more RF signal splitters configured to couple a plurality of RF input signals to the plurality of active RF hardware units, and one or more RF signal combiners configured to couple RF signals processed by the plurality of active RF hardware units to a plurality of RF output paths. The one or more RF signal splitters are configured to split each RF input signal of the plurality of RF input signals into multiple copies of the RF input signal, and to provide each copy of the multiple copies of the RF input signal to a different one of the plurality of active RF hardware units. The one or more RF signal combiners are configured to combine the multiple copies of the RF input signals into RF output signals.