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Abstract

A monolithic direct digital UHF/L-Band receiver for receiving and processing a UHF/L-Band analog signal and deriving digitized samples, the receiver operating in a tuning frequency range centered at a center frequency and having a baseband frequency, a lower bandedge frequency, and an upper bandedge frequency. The receiver comprises: a substrate; an analog-to-digital converter, mounted on the substrate, for digitally sampling at a sample rate the UHF/L-Band analog signal; a heterodyning circuit, coupled to the analog-to-digital converter and mounted on the substrate, for mixing the digitally sampled signal with a mixing signal thereby shifting the center frequency of the tuning frequency range of the sampled signal to the baseband frequency; and means, coupled to the heterodyning circuit and mounted on the substrate, for decimation filtering and decimating the mixed signal to obtain a second sample rate lower than the sample rate.

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First Claim