Patent ID: 8874063
Filing Date: 2014-10-28
Classification: H04B

Abstract:
1. A method for signal processing, comprising: down converting at least a first RF signal on a first path in a first frequency band to provide a first IF signal comprising a first I component signal and a first Q component signal; down converting at least a second RF signal on a second path in a second frequency band to provide a second IF signal comprising a second I component signal and a second Q component signal, wherein the first IF signal and the second IF signal are interspersed in the frequency domain, the first frequency band being different from the second frequency band; combining the first I component signal and the first Q component signal using a first polyphase filter to provide a third IF signal; combining the second I component signal and the second Q component signal using a second polyphase filter to provide a fourth IF signal; and combining at least part of the third IF signal and the fourth IF signal to provide a combined signal on an output signal path for reception by a digital processing circuit.