A comparative analysis of peaking methods for output stages of broadband amplifiers

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

Abstract

This paper presents a general analysis of peaking methods in output stages of amplifiers for broadband communication systems. It is shown that common peaking methods, although providing significant signal bandwidth enhancement ratios (BWER), are limited to 30%-50% of their speed potential by output matching requirements. A modified T-coil peaking is analyzed which enhances both signal bandwidth and output matching frequency range by up to 200% compared to common peaking methods. A broadband amplifier using this inductive output matching with 69-GHz bandwidth implemented in a 0.25μm SiGe BiCMOS technology is presented to prove the validity of the analysis.

Details

OriginalspracheEnglisch
Aufsatznummer5941016
Seiten (von - bis)2581-2589
Seitenumfang9
FachzeitschriftIEEE Transactions on Circuits and Systems I: Regular Papers
Jahrgang58
Ausgabenummer11
PublikationsstatusVeröffentlicht - 2011
Peer-Review-StatusJa

Schlagworte

ASJC Scopus Sachgebiete

Schlagwörter

  • BiCMOS, broadband amplifiers, inductive peaking, output matching, t-coil peaking