New active decoupling technique extends lower bandwidth limit for HBT-based MMIC amplifiers

Author

Drew, Jason ; Wilson, Brett ; Darwazeh, Izzat

Author_Institution

Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK

Volume

47

Issue

1

fYear

2000

fDate

1/1/2000 12:00:00 AM

Firstpage

72

Lastpage

75

Abstract

A new circuit technique is presented to achieve extended low-frequency operation for integrated circuit amplifier stages in which the maximum value of decoupling capacitor is restricted by processing technology limitations. Details are provided of a wideband heterojunction bipolar transistor (HBT) 50 Ω output buffer stage for a photo preamplifier which embodies this new active decoupling technique for bandwidth extension

Keywords

MMIC amplifiers; bipolar MMIC; heterojunction bipolar transistors; preamplifiers; wideband amplifiers; HBT-based MMIC amplifiers; active decoupling technique; decoupling capacitor; heterojunction bipolar transistor; integrated circuit amplifier stages; low-frequency operation; lower bandwidth limit extension; photo preamplifier; processing technology limitations; wideband HBT output buffer stage; Bandwidth; Broadband amplifiers; Capacitors; Circuits; Frequency; Heterojunction bipolar transistors; MMICs; Optical amplifiers; Resistors; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.817394

Filename

817394