Analysis and design of low noise transconductance amplifier for selective receiver front-end
Analysis and design of a low-noise transconductance amplifier (LNTA) aimed at selective current-mode (SAW-less) wideband receiver front-end is presented. The proposed LNTA uses double cross-coupling technique to reduce noise figure (NF), complementary derivative superposition, and resistive feedback...
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Veröffentlicht in: | Analog integrated circuits and signal processing 2015-11, Vol.85 (2), p.361-372 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | Analysis and design of a low-noise transconductance amplifier (LNTA) aimed at selective current-mode (SAW-less) wideband receiver front-end is presented. The proposed LNTA uses double cross-coupling technique to reduce noise figure (NF), complementary derivative superposition, and resistive feedback to achieve high linearity and enhance input matching. The analysis of both NF and IIP3 using Volterra series is described in detail and verified by
SpectreRF
®
circuit simulation showing NF +17 dBm and blocker P
1dB
>+5 dBm over frequency range of 0.5–3 GHz. |
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ISSN: | 0925-1030 1573-1979 1573-1979 |
DOI: | 10.1007/s10470-015-0629-5 |