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A Narrow-band 8.7 GHz SiGe HBT LNA with a Passive Frequency Selective Feedback

  • This paper presents a low noise amplifier (LNA) with differential output using a passive frequency selective feedback. The introduced feedback stabilizes the amplifier at lower frequencies and improves the gain in the desired frequency band. The LNA consists of two stages. Additionally, a buffer at the output is added for measurements. The amplifier was implemented in a 0.35 μm SiGe technology. For measurements the LNA was bonded to a substrate. A peak gain of 28.1 dB and a minimum noise figure of 2.2 dB at a supply voltage of 3 V were achieved.

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Metadaten
Author: Stefan Gerlich, Peter Weger
DOI:https://doi.org/10.1515/freq-2012-0037
ISSN:0016-1136
ISSN:2191-6349
Title of the source (English):Frequenz
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2012
Tag:LNA; Radiofrequency Integrated Circuits
Volume/Year:66
Issue number:7-8
First Page:183
Last Page:188
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Schaltkreisentwurf
Institution name at the time of publication:Fakultät für Mathematik, Naturwissenschaften und Informatik (eBTU) / LS Schaltkreisentwurf
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