Amplificadores de banda ancha y bajo ruido basados en tecnología de GaAs para aplicaciones de radiometría

  1. Aja Abelán, Beatriz
Supervised by:
  1. Luisa María de la Fuente Rodríguez Director
  2. Eduardo Artal Latorre Director

Defence university: Universidad de Cantabria

Fecha de defensa: 19 January 2007

Committee:
  1. Ángel Mediavilla Sánchez Chair
  2. Joaquin Portilla Rubín Secretary
  3. Lluis Pradell Cara Committee member
  4. Mónica Fernández Barciela Committee member
  5. Danielle Kettle Committee member

Type: Thesis

Teseo: 136763 DIALNET lock_openUCrea editor

Abstract

This Thesis deals with the analysis, design and characterization of broadband low noise amplifiers in GaAs PHEMT technology with application to the radiometer Back-End Modules for the Planck Low Frequency Instrument (LFI). The Thesis is composed of the next parts: - Introduction and study about the radiometer of the Planck low frequency instrument. - Design and characterization of low noise amplifiers using GaAs technology. Ka-band MMIC designs and Q-band MMIC and a MIC design are presented. - Design and assembly of the 30 and 44 GHz back-end modules. Several prototypes have been manufactured in both frequency bands and the most representative test results of each subsystem are presented. - Development of measurement techniques for broadband direct detection receivers and their application to the characterization of the back-end modules. Performance of representative prototypes in both frequency bands is included. - Integration of the back end modules and front end modules and significant results of the tests for a radiometer in each frequency band.