Patent ID: 9473158
Filing Date: 2016-10-18
CPC Classification: H03M,H04B

Claim Text:
1. A radio frequency (RF) receiver comprising: a first analog to digital converter (ADC) configured along a first signal path; a second ADC configured on a second signal path parallel to said first signal path, each ADC driven by a common clock; a first mixer upstream to said first ADC on said first signal path and configured to mix a first frequency from a first LO with an intermediate frequency (IF) signal to down-convert said IF signal to a first sampling frequency band; a second mixer upstream to said second ADC on said second signal path and configured to mix a second frequency from a second LO with said IF signal to down-convert said IF signal to a second sampling frequency band, said first and second LO frequencies being greater than the ADC common clock frequency and selected in accordance with the IF signal frequency bands such that an overlapping band of frequencies of said IF signal fall within said first sampling frequency band and within said second sampling frequency band when said IF signals on said parallel signal paths are down-converted by said first and second LO frequencies, wherein each of said first ADC and said second ADC is configured to sample said overlapping band of frequencies; and wherein outputs from said first ADC and said second ADC are coherently summed to produce a summed receiver output for said overlapping band of frequencies.