Transformer coupled novel noise cancellation technique for subthreshold UWB LNA

Author

Kumar, A. R. Aravinth ; Dutta, Arin ; Singh, S.G.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Hyderabad, Hyderabad, India

fYear

2012

fDate

17-19 Dec. 2012

Firstpage

1

Lastpage

4

Abstract

In this paper, a transformer coupled noise cancellation technique for subthreshold Ultra Wide Band (UWB) Low Noise Amplifier (LNA) is presented. This introduces a novel noise cancellation technique with current reuse topology and transformer coupling for better noise and gain performance. Moreover power consumption is considerably reduced by biasing both (two) stages in subthreshold region. This circuit is designed in UMC180nm process and simulated using SpectreRF simulator. This circuit achieved a maximum gain of 14dB and noise figure of 3.6dB over the 3dB bandwidth of 2.4-6GHz. This consumes 1.48mW of DC power from 1.5V supply. Hence the proposed circuit is very useful for WSN applications in ISM (2.4GHz) band and Ultra Wide Band (UWB) group I & II.

Keywords

UHF integrated circuits; circuit simulation; integrated circuit design; interference suppression; low noise amplifiers; microwave integrated circuits; network topology; transformers; ultra wideband communication; wireless sensor networks; ISM band; SpectreRF simulator; UMC180nm process; WSN application; bandwidth 2.4 GHz to 6 GHz; biasing; noise figure; power consumption; subthreshold UWB LNA; subthreshold ultra wide band low noise amplifier; topology; transformer coupled noise cancellation technique; transformer coupling; wireless sensor network; LNA; UWB; current reuse; low power; noise-cancelling; subthreshold;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers and Devices for Communication (CODEC), 2012 5th International Conference on

Conference_Location

Kolkata

Print_ISBN

978-1-4673-2619-3

Type

conf

DOI

10.1109/CODEC.2012.6509213

Filename

6509213