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Optimized passive devices for low-power LNA design
Gil Galí, Ignacio; Fernández García, Raúl; Sieiro, Javier; López-Villegas, José María
Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. TIEG - Grup d'Electrònica Industrial Terrassa
This paper addresses the design of high-Q passive inductors and differential transformers in a low-power lownoise amplifier (LNA) application. The passives quality in resonant LC tanks as well as in the matching network and degeneration inductors has been improved by balancing the trade-off between ohmic losses and Eddy current degradation. As a result, the enhanced passives Q-factor for the optimized passive devices has been used in order to design a 2.4 GHz fully integrated high-gain current-reused LNA, implemented in 0.18 μm CMOS technology. The LNA performance show a gain of roughly 30 dB, while dissipating 0.9 mA from a 1.2 V supply.
Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència
Low noise amplifiers
Amplificadors de baixa freqüència

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