A low-power CMOS LNA for ultra-wideband wireless receivers

Yi Ching Lee*, Jenn-Hawn Tarng

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

In this paper, a low-power ultra- wideband (UWB) lownoise amplifier (LNA) is proposed. Here, we propose a structure to combine the common gate with band pass filters, which can reduce parasitic capacitance of the transistor and to achieve input wideband matching. The π-section LC network technique is employed in the LNA to achieve sufficient fiat gain. A bias resistor of large value is placed between the source and the body nodes to prevent body effect and reduce noise. Numerical simulation based on TSM.C 0.18μm 1P6M process. It achieved 10.0-12.4dB gain from 3 GHz to 10.6 GHz and 3.25 dB noise figure in 8.5 GHz, operates from 1.5V power supply, and dissipates 3 mW without the output buffer.

Original languageEnglish
Pages (from-to)294-299
Number of pages6
JournalIEICE Electronics Express
Volume4
Issue number9
DOIs
StatePublished - 10 May 2007

Keywords

  • Low noise amplifier
  • Low power
  • Ultra-wideband

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