1.8 mW wideband LNA with double capacitor‐cross‐coupled feedback. Issue 20 (1st September 2014)

• Record Type: Journal Article
• Authors: Wang, Zengqi; Li, Zhiqun; Shen, Changguo
• Is Part Of: Electronics letters. Volume 50:Issue 20(2014)
• Page Start: 1482
• Page End: 1484
• Publication Date: 2014-09-01
• Subjects: low noise amplifiers -- low‐power electronics -- CMOS analogue integrated circuits -- wideband amplifiers; double capacitor‐cross‐coupled feedback -- wideband common‐gate LNA -- low‐noise amplifier -- multiband wireless communication standards -- high‐voltage gain -- low power consumption -- current‐reused techniques -- CMOS implementations -- power 1.8 mW -- size 0.18 mum -- bandwidth 100 MHz to 1.7 GHz -- voltage 1.8 V; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2014.2406
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A 1.8 mW wideband common‐gate (CG) low‐noise amplifier (LNA) with double capacitor‐cross‐coupled (CCC) feedback is presented for multiband wireless communication standards. To achieve a low‐noise figure (NF) and high‐voltage gain under low power consumption, the CG LNA is based on the double CCC feedback and current‐reuse techniques. Post‐layout simulated results for 0.18 μm CMOS implementations show that the voltage gain is 18.1 dB with a 3 dB bandwidth from 100 MHz to 1.7 GHz and the IIP3 is −4.9 dBm at 1 GHz. The average NF is 2.4 dB within the entire 3 dB bandwidth. The LNA consumes 1.8 mW from a 1.8 V DC supply and the active size is 0.15 × 0.14 mm 2 .