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UWB LNAs using LC ladder and transformers for input matching networks

Abstract : The most efficient technique, based on LC ladder filtering, providing wide input matching in UWB LNA is first reviewed. Implemented with integrated inductors in a cascode topology, the circuit covers the 6 to 10 GHz upper frequency of European UWB and achieves an 8 dB maximum gain and 7.5 dB minimum noise figure for a 9mW power consumption. A transformer implementation of this Inductive Degeneration LC Filtering cascode architecture is also proposed. It leads to reduce by 50% the number of integrated inductors. Providing a 13 dB maximum gain from 3 to 5 GHz, the lower band of UWB, the circuit exhibits a 4 dB minimum NF under 9mW power consumption
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Submitted on : Sunday, October 7, 2007 - 5:35:22 PM
Last modification on : Saturday, March 14, 2020 - 12:44:10 PM


  • HAL Id : hal-00177329, version 1


Thierry Taris, Ouail Elgharniti, Jean-Baptiste Begueret, Eric Kerherve. UWB LNAs using LC ladder and transformers for input matching networks. 13th IEEE International Conference on Electronics, Circuits and Systems, 2006. ICECS '06., Dec 2006, Nice, France. pp.792 - 796. ⟨hal-00177329⟩



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