Modeling and design of ultrawideband low noise amplifiers with generalized impedance matching networks

Hamid Nejati, Tamer Ragheb, Arthur Nieuwoudt, Yehia Massoud

Research output: Chapter in Book/Report/Conference proceedingConference contribution

24 Scopus citations

Abstract

In this paper, we present a complete modeling methodology for fully integrated inductively degenerated cascode ultrawideband low noise amplifiers (LNA) with generalized filter-based impedance matching networks. Our accurate analytical models capture the impact of device and passive component parasitics and transistor short channel effects to closely match circuit simulation results. Utilizing our method, we are able to accurately generate an ultrawideband LNA in the 3.1 to 10.6 GHz band using third and fifth order Chebyshev filters as input matching networks. Both of the designs achieve a power gain greater than 9dB, input and output impedance matching less than -9dB, and a noise figure from less than 3.4dB when using a TSMC 0.18μm mixed-signal/RF model. The performance parameters for the third order filter configuration exceed the results reported from previous ultrawideband designs. © 2007 IEEE.
Original languageEnglish (US)
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2622-2625
Number of pages4
DOIs
StatePublished - Jan 1 2007
Externally publishedYes

Fingerprint

Dive into the research topics of 'Modeling and design of ultrawideband low noise amplifiers with generalized impedance matching networks'. Together they form a unique fingerprint.

Cite this