A New Application of Current Conveyors: The Design of Wideband Controllable Low-Noise Amplifiers
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The aim of this paper is three-fold. First, it reviews the low-noise amplifier and its relevance in wireless communications receivers. Then it presents an exhaustive review of the existing topologies. Finally, it introduces a new class of LNAs, based on current conveyors, describing the founding principle and the performances of a new single-ended LNA. The new LNAs offer the following notable advantages: total absence of passive elements (and the smallest LNAs in their respective classes); wideband performance, with stable frequency responses from 0 to 3 GHz; easy gain control over wide ranges (0 to 20 dB). Comparisons with other topologies prove that the new class of LNA greatly advances the state of the art.
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2008, vol. 17, č. 4, s. 91-100. ISSN 1210-2512
- 2008/4