Ill conditioning loci in noise parameter determination

An analysis of the problem of noise parameter determination is carried out. It is found that the mathematical problem is ill-posed if all the source reflection coefficients (Γs) used in the measurements fall onto a line, circle or are of a circle in the Smith chart. This is used to expand on existin...

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Authors: O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202, Alegret Ginesta, Alexandre, Pradell i Cara, Lluís|||0000-0003-4026-226X, Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
Format: article
Publication Date:1996
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/1975
Online Access:https://hdl.handle.net/2117/1975
Access Level:Open access
Keyword:Microwave circuits
Noise
circuit noise
microwave circuits
two-port networks
Smith chart
accuracy degradation
ill conditioning loci
linear two-port
noise figure
noise parameter determination
source reflection coefficients
Circuits de microones
Soroll
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
id ES_4b72d32ead75cb03ae1e7becd930adda
oai_identifier_str oai:upcommons.upc.edu:2117/1975
network_acronym_str ES
network_name_str España
repository_id_str
spelling Ill conditioning loci in noise parameter determinationO'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202Alegret Ginesta, AlexandrePradell i Cara, Lluís|||0000-0003-4026-226XCorbella Sanahuja, Ignasi|||0000-0001-5598-7955Microwave circuitsNoisecircuit noisemicrowave circuitstwo-port networksSmith chartaccuracy degradationill conditioning locilinear two-portmicrowave circuitsnoise figurenoise parameter determinationsource reflection coefficientsCircuits de microonesSorollÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::TeledeteccióAn analysis of the problem of noise parameter determination is carried out. It is found that the mathematical problem is ill-posed if all the source reflection coefficients (Γs) used in the measurements fall onto a line, circle or are of a circle in the Smith chart. This is used to expand on existing criteria for selecting Γ s and to rule out sources of accuracy degradation.Peer ReviewedIEE-INST ELEC ENG19961996-08-0120082008-05-03journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/1975reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/19752026-05-27T15:37:01Z
dc.title.none.fl_str_mv Ill conditioning loci in noise parameter determination
title Ill conditioning loci in noise parameter determination
spellingShingle Ill conditioning loci in noise parameter determination
O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202
Microwave circuits
Noise
circuit noise
microwave circuits
two-port networks
Smith chart
accuracy degradation
ill conditioning loci
linear two-port
microwave circuits
noise figure
noise parameter determination
source reflection coefficients
Circuits de microones
Soroll
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
title_short Ill conditioning loci in noise parameter determination
title_full Ill conditioning loci in noise parameter determination
title_fullStr Ill conditioning loci in noise parameter determination
title_full_unstemmed Ill conditioning loci in noise parameter determination
title_sort Ill conditioning loci in noise parameter determination
dc.creator.none.fl_str_mv O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202
Alegret Ginesta, Alexandre
Pradell i Cara, Lluís|||0000-0003-4026-226X
Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
author O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202
author_facet O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202
Alegret Ginesta, Alexandre
Pradell i Cara, Lluís|||0000-0003-4026-226X
Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
author_role author
author2 Alegret Ginesta, Alexandre
Pradell i Cara, Lluís|||0000-0003-4026-226X
Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
author2_role author
author
author
dc.subject.none.fl_str_mv Microwave circuits
Noise
circuit noise
microwave circuits
two-port networks
Smith chart
accuracy degradation
ill conditioning loci
linear two-port
microwave circuits
noise figure
noise parameter determination
source reflection coefficients
Circuits de microones
Soroll
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
topic Microwave circuits
Noise
circuit noise
microwave circuits
two-port networks
Smith chart
accuracy degradation
ill conditioning loci
linear two-port
microwave circuits
noise figure
noise parameter determination
source reflection coefficients
Circuits de microones
Soroll
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
description An analysis of the problem of noise parameter determination is carried out. It is found that the mathematical problem is ill-posed if all the source reflection coefficients (Γs) used in the measurements fall onto a line, circle or are of a circle in the Smith chart. This is used to expand on existing criteria for selecting Γ s and to rule out sources of accuracy degradation.
publishDate 1996
dc.date.none.fl_str_mv 1996
1996-08-01
2008
2008-05-03
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/1975
url https://hdl.handle.net/2117/1975
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IEE-INST ELEC ENG
publisher.none.fl_str_mv IEE-INST ELEC ENG
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869407560968175616
score 15,301603

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