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Design of low power CMOS ultra wide band low noise amplifier using noise canceling technique

Authors
Shim, JaeminYang, TaejunJeong, Jichai
Issue Date
9월-2013
Publisher
ELSEVIER SCI LTD
Keywords
CMOS; UWB; Low noise amplifier; Noise canceling; Current-reused technique
Citation
MICROELECTRONICS JOURNAL, v.44, no.9, pp.821 - 826
Indexed
SCIE
SCOPUS
Journal Title
MICROELECTRONICS JOURNAL
Volume
44
Number
9
Start Page
821
End Page
826
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/102240
DOI
10.1016/j.mejo.2013.06.001
ISSN
0026-2692
Abstract
This paper presents a design of a low power CMOS ultra-wideband (UWB) low noise amplifier (LNA) using a noise canceling technique with the TSMC 0.18 mu m RF CMOS process. The proposed UWB LNA employs a current-reused structure to decrease the total power consumption instead of using a cascade stage. This structure spends the same DC current for operating two transistors simultaneously. The stagger-tuning technique, which was reported to achieve gain flatness in the required frequency, was adopted to have low and high resonance frequency points over the entire bandwidth from 3.1 to 10.6 GHz. The resonance points were set in 3 GHz and 10 GHz to provide enough gain flatness and return loss. In addition, the noise canceling technique was used to cancel the dominant noise source, which is generated by the first transistor. The simulation results show a flat gain (S-21 > 10 dB) with a good input impedance matching less than -10 dB and a minimum noise figure of 2.9 dB over the entire band. The proposed UWB LNA consumed 15.2 mW from a 1.8 V power supply. (C) 2013 Elsevier Ltd. All rights reserved.
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