30–50 GHz high‐gain CMOS UWB LNA. Issue 25 (1st December 2013)

• Record Type: Journal Article
• Authors: Yang, Ge Liang; Liu, Faen; Muhammad, Amin; Wang, Zhigong
• Is Part Of: Electronics letters. Volume 49:Issue 25(2013)
• Page Start: 1622
• Page End: 1623
• Publication Date: 2013-12-01
• Subjects: CMOS analogue integrated circuits -- low noise amplifiers -- power consumption -- radioastronomical techniques -- ultra wideband technology; high‐gain CMOS UWB LNA -- CMOS ultra‐wideband low‐noise amplifier -- voltage 1.2 V -- power 20.4 mW -- frequency 30 GHz to 50 GHz -- radio astronomical array -- ALMA band‐1 system applications -- gain bandwidth -- CMOS Q‐band LNA -- DC power consumption -- IIP3 -- input third‐order intercept point -- inductive‐peaking networks design -- gain flatness -- bandwidth extension -- body terminals -- triple‐well transistors -- Atacama large millimetre array -- NF -- flat low‐noise figure -- flat high power gain; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.2625
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A 30–50 GHz CMOS ultra‐wideband (UWB) low‐noise amplifier (LNA) with a flat high power gain ( S 21 ), along with a flat low‐noise figure (NF) is demonstrated for the Atacama large millimetre array (ALMA) band‐1 (31.3–45 GHz) system applications. The high S 21 and low NF are achieved because the triple‐well transistors are utilised with their respective source and body terminals connected together. Furthermore, the bandwidth extension and gain flatness is achieved due to the careful design of the inductive‐peaking networks. The LNA has a measured S 21 of 21.5 ± 1.5 dB, a minimum NF (NFmin ) of 3.8 dB at 32.5 GHz, an average NF (NFavg ) of 4.67 dB over the range of 30–50 GHz and an input third‐order intercept point (IIP3) of 0 dBm, with a DC power consumption of 20.4 mW at 1.2 V supply. The proposed LNA outperforms all the reported commercial standard CMOS Q ‐band LNAs, with the highest gain bandwidth product and highest IIP3 suitable for the ALMA band‐1 system applications.