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

Hui Zhu*, Yuji Tanabe, Tomoki Uwano, Takaaki Baba

*この研究の対応する著者

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトル2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006
DOI
出版ステータスPublished - 2007
イベント2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006 - Wuhan
継続期間: 2006 9 222006 9 29

Other

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

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 電子工学および電気工学
  • 通信

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