Determining optimum load impedance for a noisy active 2-port network.

Author

Ciccognani, Walter ; Giannini, Franco ; Limiti, Ernesto ; Longhi, Patrick Ettore ; Serino, Antonio

Author_Institution

Univ. di Roma Tor Vergata, Rome

fYear

2007

fDate

8-10 Oct. 2007

Firstpage

595

Lastpage

598

Abstract

The role of the impedance load when dealing with noisy two port networks is investigated. Its value acts directly on input and output return losses (IRL and ORL) that can be simultaneously achieved once input load has been fixed to an arbitrary value. A novel design chart, obtained after examining constant mismatch circles, is introduced, where optimum tradeoff between IRL and ORL is promptly identified. The role of degenerative source feedback is highlighted to improve IRL/ORL trade-off.

Keywords

microwave amplifiers; constant mismatch circles; degenerative source feedback; design chart; microwave amplifiers; noisy active 2-port network; optimum load impedance; Active noise reduction; Impedance matching; Integrated circuit noise; Microwave devices; Microwave integrated circuits; Noise figure; Output feedback; Performance gain; Reflection; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuit Conference, 2007. EuMIC 2007. European

Conference_Location

Munich

Print_ISBN

978-2-87487-002-6

Type

conf

DOI

10.1109/EMICC.2007.4412783

Filename

4412783

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2526925