Decade bandwidth single and cascaded travelling wave medium power amplifiers using SiGe HBTs

Mustafa Sayginer*, Metin Yazgi, Ali Toker, Hakan Kuntman, Bal S. Virdee

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

This paper presents two integrated class-A travelling wave medium power amplifiers employing 0.35μm SiGe HBT process. The first amplifier realized is a 1.3x1mm2 device comprising of a single-stage configuration using a single transistor that exhibits an average small-signal gain of 7dB and power level of 14dBm between 0.25 to 2.5GHz while maintaining power-added efficiency in the range 30% to 10%. The second amplifier is 1.8x2.3mm2 device comprising of a driver stage cascaded with two identical amplifier stages in a parallel configuration whose outputs are combined together to enhance the devices output power by 3dB across the wideband frequency range. This amplifier's unique topology is implemented using a version of the first amplifier. The amplifier's measured output power was approximately 18dBm, the average small-signal gain was 21dB, and efficiency between 30% to 10% across 0.2-2.2GHz.

Original languageEnglish
Title of host publication2011 20th European Conference on Circuit Theory and Design, ECCTD 2011
Pages821-824
Number of pages4
DOIs
Publication statusPublished - 2011
Event2011 20th European Conference on Circuit Theory and Design, ECCTD 2011 - Linkoping, Sweden
Duration: 29 Aug 201131 Aug 2011

Publication series

Name2011 20th European Conference on Circuit Theory and Design, ECCTD 2011

Conference

Conference2011 20th European Conference on Circuit Theory and Design, ECCTD 2011
Country/TerritorySweden
CityLinkoping
Period29/08/1131/08/11

Keywords

  • SiGe HBT
  • Wideband Power Amplifiers

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