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dc.contributor.authorCasas Reinares, Francisco Javier
dc.contributor.authorPascual Gutiérrez, Juan Pablo 
dc.contributor.authorPortilla Rubín, Joaquín
dc.contributor.authorFuente Rodríguez, Luisa María de la 
dc.contributor.authorAja Abelán, Beatriz 
dc.contributor.authorArtal Latorre, Eduardo 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2013-07-29T08:08:36Z
dc.date.available2013-07-29T08:08:36Z
dc.date.issued2009-09
dc.identifier.urihttp://hdl.handle.net/10902/2754
dc.description.abstractIn this work, system level modelling and realistic simulation and measurement results of a 31 GHz Back-End Module (BEM) Low-Noise Amplifier (LNA), designed for the QUIJOTE CMB (Q U I JOint TEnerife CMB) experiment radiometer, are reported. The signals received by radiometers can be identified as continuous spectre gaussian white noise signals. This makes necessary time-domain simulation techniques and appropriate models for the realistic analysis of radiometers behaviour. The measured-based modelling of one BEM´s LNA, its simulation in nominal conditions and the measurement of the nonlinear characteristic by using filtered white noise excitation signals, will be shown. Typically, in the LNAs design process the linearity is not taken into account but, as we will see, in the radiometers case, the nature of Gaussian noise excitation signals makes amplifiers to present higher nonlinearity in their characteristics than when using single tone excitation signals. Therefore, in order to analyze the suitability of the LNAs nominal operation, linearity figures of merit have to be obtained, but using realistic excitation signals. In this paper, the LNAs nonlinear characteristics with gaussian noise excitation signals have been obtained.es_ES
dc.format.extent4 p.es_ES
dc.language.isospaes_ES
dc.rights© 2009 URSI Españaes_ES
dc.sourceURSI 2009, XXIV Simposium Nacional de la Unión Científica Internacional de Radio, Santanderes_ES
dc.titleCaracterización de la compresión en LNAs para aplicaciones de astronomíaes_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.rights.accessRightsopenAccesses_ES
dc.type.versionacceptedVersiones_ES


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