System Design of a Configurable Highly Digital UMTS/NAVSAT RF-Receiver
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Proc. of 63rd Vehicular Technology Conference VTC 2006
This paper introduces a combined UMTS/NAVSAT receiver architecture with only one reconfigurable Radio Frequency (RF) front-end. After a review of the state-of-the-art for UMTS and NAVSAT receivers, a configurable UMTS/-NAVSAT architecture is proposed. The investigated concept is based on a Digital-Front-End (DFE) to prevent duplication of hardware, which will result in considerably lower costs. The DFE includes highly reconfigurable filter structures, which enable channel selection for different signal bandwidths according to the configured mode. The analog to digital conversion is carried out with a high dynamic-range/low-power -analog-to-digital-converter (ADC). This simplifies the design of the analog anti-aliasing filter considerably.