Publication: Diseño de un amplificador de bajo ruido criogénico para aplicaciones radioastronómicas (Design of a cryogenic low noise amplifier for radio astronomy applications)
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2011
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Abstract
En el campo de la radioastronomía los amplificadores de bajo ruido (LNA, Low Noise Amplifier) constituyen la etapa encargada de aportar a las señales detectadas la potencia necesaria para que puedan ser adecuadamente manejadas en etapas posteriores.
Se describe el proceso de diseño, fabricación y caracterización de un LNA que ha de funcionar enfriado criogénicamente. El marco de aplicación del sistema es la fabricación de una cadena de detección de prueba compacta, encaminada a experimentar con la tecnología que permita el futuro desarrollo de un detector bidimensional multipixel para aplicaciones radioastronómicas.
El trabajo desarrollado se enmarca dentro del proyecto AMSTAR+ (Radionet-FP7) financiado por la Unión Europea, y ha sido realizado íntegramente en el prestigioso Centro Astronómico de Yebes (CAY) situado en la localidad de Yebes (Guadalajara, Castilla la Mancha). [ABSTRACT] In the field of radio astronomy, low noise amplifiers (LNA) are the stages which provide power to the detected signals so these can be adequately managed by subsequent stages.
The process of design, construction and measurement of a cryogenic LNA is described. The application framework for this design is the development of a test detection chain that can be used to experiment with the technology that will allow development of a bi-dimensional multipixel detector for radio astronomy purposes.
This work has been developed within the framework of the AMSTAR+ project (Radionet-FP7) financed by the European Union and been carried out entirely at the prestigious Yebes Astronomy Center (CAY, Centro Astronómico de Yebes) located in Yebes (Guadalajara, Castilla la Mancha,Spain).
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Máster en Física Aplicada. Facultad de Ciencias Físicas. Curso 2010-2011
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