Patent ID: 7460615
Filing Date: 2008-12-02
Classification: G01S,H04B,H04L

Abstract:
1. A receiver for decoding a composite signal consisting of a plurality of frequency bands, the receiver comprising: a multiplexer coupled with an antenna for receiving as inputs, incoming signals in two or more frequency bands, said multiplexer, operating at a frequency of a sampling clock, producing a composite analog multiplexed signal from said incoming signals; a single radio frequency (RF) stage coupled to the output of said multiplexer for receiving said a composite analog multiplexed signal said RF stage further comprising a heterodyning mixer for converting the composite analog multiplexed signal to a single intermediate frequency band signal using a fixed local oscillator that is at a frequency that is between the overall frequency range of the incoming signals; and a sampling circuit, for sampling the single intermediate frequency band signal, having one or more A/D converters and a demultiplexer for obtaining digitized samples and demultiplexing counterparts representing said incoming signals under the direction of the sampling clock, wherein the sampling clock frequency satisfying the Nyquist criteria.