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Low-power current-reused RF front-end based on optimized transformers topology |
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| Authors: | Ignacio Gil [Author Vitae] Ignasi Cairó [Author Vitae] [Author Vitae] José M López-Villegas [Author Vitae] |
| Affiliation: | a Departament d’Enginyeria Electrònica, Universitat Politècnica de Catalunya, 08222 Colom 1, Terrassa (Barcelona), Spain b 2EPSON Europe Electronics, Barcelona R&D Laboratory, Avda. Alcalde Barnils, 64-68 08190 Sant Cugat del Vallès (Barcelona), Spain c 3Departament d’Electrònica, Universitat de Barcelona 08028 Martí i Franquès 1, planta 2 (Barcelona), Spain |
| Abstract: | This paper discusses the design, analysis and performance of a 2.4 GHz fully integrated low-power current-reused receiver front-end implemented in 0.18 μm CMOS technology. The front-end is composed of a single-to-differential low-noise amplifier (LNA), using high-Q differential transformers and inductors and a coupled switching mixer stage. The mixer transconductor and LNA share the same DC current. Measurements of performance show a conversion gain of 28.5 dB, noise figure of 6.6 dB, 1 dB compression point of −32.8 dBm and IIP3 of −23.3 dBm at a 250 kHz intermediate frequency, while dissipating 1.45 mA from a 1.2 V supply. |
| Keywords: | CMOS Low-noise amplifier Mixer Front-end Low-power consumption Differential transformer |
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