A CMOS LNA based on Inverter Structure for Wideband Applications

Jung Ji-Hak (정지학)

doi:10.34163/jkits.2019.14.3.003

A CMOS LNA based on Inverter Structure for Wideband Applications

Journal of Knowledge Information Technology and Systems
Abbr : JKITS
2019, 14(3), pp.237-246
DOI : 10.34163/jkits.2019.14.3.003
Publisher : Korea Knowledge Information Technology Society
Research Area : Interdisciplinary Studies > Interdisciplinary Research
Received : April 17, 2019
Accepted : June 7, 2019
Published : June 30, 2019

Jung Ji-Hak ¹

¹한국폴리텍 IV 대학 아산캠퍼스

Accredited

ABSTRACT

In recent years, the potential technology for short distance and high-data wireless communication systems has been grown. Ultra-wideband (UWB) technology has emerged as a considerable interest and new technology. According to a proposed standard, the UWB system is assigned to operate over 3.1 - 5 GHz or 3.1 - 10.6 GHz. Most of the proposed applications allow transmission of signals between 3.1 and 10.6 GHz. In this paper, a wideband CMOS Low Noise Amplifier (LNA) is proposed with a inverter structure using inductor peaking technique and broadband matching techniques, which meets stringent requirements of UWB system in the proposed specifications. The proposed LNA has the inverter structure and cascode structure with shunt feedback. Measurement results show the maximum power gain (S21) of 17.4 dB with the 3-dB band and input/output reflection coefficient (S11, S22) of less than –9.7 dB from 3.1 to 9.6 GHz. In addition, the fabricated LNA achieves the minimum noise figure (NF) of 3.5 dB from the operating frequency, which value is much lower than previously reported state-of-the-art wideband amplifiers. The input-referred IIP3 and the input-referred P1dB of the proposed LNA are achieved as 0 dBm and –10 dBm, respectively, while consuming 27 mW in 0.18- RF CMOS process.

KEYWORDS

Ultra wideband, Low noise amplifiers, Inverters, Cascode, Inductor peaking

Citation status

* References for papers published after 2023 are currently being built.

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Journal of Knowledge Information Technology and Systems 2023 KCI Impact Factor : 0.89

A CMOS LNA based on Inverter Structure for Wideband Applications

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Citation status

* References for papers published after 2023 are currently being built.

Journal of Knowledge Information Technology and Systems 2023 KCI Impact Factor : 0.89

A CMOS LNA based on Inverter Structure for Wideband Applications

ABSTRACT

KEYWORDS

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* References for papers published after 2023 are currently being built.