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A low power balun LNA with active loads for gain and noise figure optimization

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Abstract

In this paper we describe a balun LNA with noise and distortion cancelling with active loads to boost the gain and reduce the noise figure (NF). Simulation and measurements results, with a 130 nm CMOS technology, show that the gain is enhanced by about 3 dB and the NF is reduced by at least 0.5 dB, with a negligible impact on the circuit linearity (IIP3 is about 0 dBm). The total power dissipation is only 4.8 mW, and the active area is less than 50 × 50 µm2.

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Authors and Affiliations

  1. Centre for Technology and Systems (CTS of UNINOVA) and Faculty of Sciences and Technology (FCT), Universidade Nova de Lisboa (UNL), Lisbon, Portugal

    I. Bastos, L. B. Oliveira & J. Goes

  2. INESC-ID Lisboa, 1000-029, Lisbon, Portugal

    M. Silva

Authors
  1. I. Bastos
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  2. L. B. Oliveira
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  3. J. Goes
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  4. M. Silva
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Corresponding author

Correspondence to L. B. Oliveira.

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Bastos, I., Oliveira, L.B., Goes, J. et al. A low power balun LNA with active loads for gain and noise figure optimization. Analog Integr Circ Sig Process 81, 693–702 (2014). https://doi.org/10.1007/s10470-014-0426-6

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  • DOI: https://doi.org/10.1007/s10470-014-0426-6

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