超寬頻負回授低雜訊放大器
刊登日期:2014/05/21
  ‧ 專利名稱 負迴授式高寬頻信號放大器電路
  ‧ 專利證書號 I418140
US 7,622,995 B2
  ‧ 專利權人 國立臺灣大學
  ‧ 專利國家
    (申請日)
中華民國 (2008/01/21)
美國 (2008/06/19)
 
  ‧ 發明人/PI 李偉暘,江簡富 ,
  ‧ 單位 電信工程學研究所
  ‧ 簡歷/Experience
技術摘要 / Our Technology:
一種負回授式超寬頻信號放大器電路,其可應用於整合至一超寬頻(ultra-wide band,UWB)之電路系統,用來對超寬頻之電子信號提供一低雜訊之增益放大功能;且其電路架構的特點包括:於輸入端設置一雙階式濾波電路單元、於電晶體放大電路架構中設置電阻式之回授電路單元、以及於輸出端設置一共源極式之電晶體放大電路。此些特點可令輸入信號之放大功能具有平坦之增益、較低之耗電量、較低之雜訊因數、以及較高之操作穩定性。
A negative-feedback type ultra-wideband signal amplification circuit is proposed, which is designed for integration to an ultra-wideband (UWB) signal processing circuit system for providing a low-noise amplification function to UWB signals. The proposed circuit architecture is characterized by the provision of a dual-step filter circuit on the input side, the provision of a resistive-type feedback circuit in the transistor-based amplification circuitry, and the provision of a common-source transistor-based amplification circuit on the output side. These features allow the proposed signal amplification circuit to have flat power gain, lower power consumption, low noise figure, and higher operational stability.




專利簡述 / Intellectual Properties:




 

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