A 0.1–3 GHz low power cascode CS LNA using 0.18µm CMOS technology

Author

Sureja, Jigisha ; Oza, Shruti ; Thathagar, Jitendra

fYear

2012

fDate

19-21 Dec. 2012

Firstpage

1

Lastpage

6

Abstract

This paper analyzes cascode common source structure of LNA where T-coil network can be implemented as a high order filter for bandwidth extension. The technique is incorporated into the design of the input matching and output peaking networks of a low-noise amplifier. The intrinsic capacitances within the transistors are exploited as a part of the wideband structure to extend the bandwidth. Using the proposed topology, a wideband low-noise amplifier with a bandwidth of 0.1-3 GHz, a maximum gain of 19 dB and noise figure of 6.6 dB (min) is achieved. The average power consumption of the wideband low-noise amplifier from the 1.8V power supply is 4.5 mW.

Keywords

CMOS integrated circuits; MMIC amplifiers; UHF amplifiers; UHF filters; field effect MMIC; low noise amplifiers; low-power electronics; microwave filters; wideband amplifiers; CMOS technology; T-coil network; bandwidth extension; cascode common source structure anaylysis; frequency 0.1 GHz to 3 GHz; high order filter; low power cascode CS LNA; noise figure 6.6 dB; size 0.18 mum; transistors; voltage 1.8 V; wideband low-noise amplifier; Frequency response; Impedance matching; Inductors; RLC circuits; Transfer functions; Wideband; Bandwidth extension; T-coil network; center-tap inductor; chebyshev filter; feedback; wideband low-noise amplifier (LNA);

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technology Trends in Electronics, Communication and Networking (ET2ECN), 2012 1st International Conference on

Conference_Location

Gujarat

Print_ISBN

978-1-4673-1628-6

Type

conf

DOI

10.1109/ET2ECN.2012.6470059

Filename

6470059