A gain boosted fully concurrent dual-band interstage matched LNA operating in 900 MHz/2.4 GHz with sub-2dB noise figure

Datta, S and Dutta, Asudeb and Bhattacharyya, T K (2010) A gain boosted fully concurrent dual-band interstage matched LNA operating in 900 MHz/2.4 GHz with sub-2dB noise figure. In: IEEE International Conference on Communication Control and Computing Technologies, ICCCCT 2010, 7-9 October, 2010, Nagercoil, Tamil Nadu; India.

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Abstract

This paper features the design and detailed analysis of a fully concurrent dual-band Low Noise Amplifier (LNA) operating in the GSM 0.9GHz & BLUETOOTH 2.4GHz communication standards having an inter-stage matching inductor. An interstage inductor between the common source stage and the common gate stage is used to increase power gain. In this work, all the circuit components are considered on-chip. The results show that the proposed topology increases the overall gain. The concurrent LNA is designed and simulated in CADENCE using 130nm UMC technology. The current design is especially suitable for use in multi-standard wireless receiver frontends. Simulation results indicate a Noise Figure below 4dB and S21 above 14 dB in all frequency bands while drawing 10m A current from a 1.2V power supply.

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