Higher-efficiency-biasing technique for enhancing the performance of BJT-distributed amplifiers

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Original languageEnglish
Pages (from-to)2725-2727
Journal / PublicationMicrowave and Optical Technology Letters
Issue number10
Publication statusPublished - Oct 2008


Efficiency of distributed amplifier based on bipolar junction transistors is low particularly at higher frequencies. The work presented here shows an increase in efficiency of up to three times by applying a proposed unequal biasing technique, which also eliminates the inefficient use of a dummy load at the output artificial transmission line. The proposed circuit provides a maximum power added efficiency of 27.8% which is a three-times improvement compared with the optimized conventional distributed amplifier. © 2008 Wiley Periodicals, Inc.

Research Area(s)

  • Distributed amplifiers