Amplificadores de banda ancha y bajo ruido basados en tecnología de GaAs para aplicaciones de radiometría
- Aja Abelán, Beatriz
- Luisa María de la Fuente Rodríguez Director
- Eduardo Artal Latorre Director
Defence university: Universidad de Cantabria
Fecha de defensa: 19 January 2007
- Ángel Mediavilla Sánchez Chair
- Joaquin Portilla Rubín Secretary
- Lluis Pradell Cara Committee member
- Mónica Fernández Barciela Committee member
- Danielle Kettle Committee member
Type: Thesis
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.