Numerical study on the average noise factor of LNA for UWB impulse radio systems

Hui Zhu, Yuji Tanabe, Tomoki Uwano, Takaaki Baba

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Noise factor (NF) is used to quantify the degradation of the signal passing through RF circuits. The spot NF widely used in narrow band low-noise amplifier (LNA) is frequency dependent. It's necessary to redefine the NFfor the wideband LNA where the Ultra-wideband (UWB) signal pulse is assumed to be of the Gaussian pulse. The average NF suitable for the wideband LNA is discussed firstly. Numerical study on the average NF of LNA for UWB impulse radio is presented in this paper. The average NF is analyzed to quantify the relationship between LNA and Gaussian pulse. A design strategy is suggested that the Gaussian pulse frequency response is optimized to lower average NF. The average NF is equivalent to the spot NF when narrow band assumption is made. For wideband systems with constant frequency response, the average NF is determined by two endpoints frequency summation.

Original languageEnglish
Title of host publication2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006
DOIs
Publication statusPublished - 2007
Event2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006 - Wuhan
Duration: 2006 Sep 222006 Sep 29

Other

Other2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006
CityWuhan
Period06/9/2206/9/29

Keywords

  • Average NF
  • Gaussian pulse
  • UWB LNA

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Communication

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    Zhu, H., Tanabe, Y., Uwano, T., & Baba, T. (2007). Numerical study on the average noise factor of LNA for UWB impulse radio systems. In 2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006 [4149287] https://doi.org/10.1109/WiCOM.2006.110