URSI_2008.pdf - See discussions stats and author profiles for this publication at https/www.researchgate.net/publication/229025478 Diseño de

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See discussions, stats, and author profiles for this publication at: Diseño de amplificadores diferenciales de bajo ruido para antenas uwb en la banda baja del proyecto SKA Conference Paper · September 2008 Source: OAI CITATIONS 0 READS 807 7 authors , including: Some of the authors of this publication are also working on these related projects: Miniaturization of aircraft antennas View project Yebes Satellite Laser Ranging System View project Oscar García Pérez Instituto Geográfico Nacional 62 PUBLICATIONS 137 CITATIONS SEE PROFILE Vicente Gonzalez Universidad Politécnica de Madrid 137 PUBLICATIONS 801 CITATIONS SEE PROFILE Jose Jimenez UPM 21 PUBLICATIONS 51 CITATIONS SEE PROFILE Jose Manuel Serna Puente Yebes Observatory 62 PUBLICATIONS 61 CITATIONS SEE PROFILE All content following this page was uploaded by Jose Manuel Serna Puente on 22 October 2015. The user has requested enhancement of the downloaded file.
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DISEÑO DE AMPLIFICADORES DIFERENCIALES DE BAJO RUIDO PARA ANTENAS UWB EN LA BANDA BAJA DEL PROYECTO SKA Óscar A. García Pérez (1)(2) , Vicente González Posadas (3) , José L. Jiménez Martín (3) , José M. Serna Puente (2) , Enrique García Muñoz (1) , Daniel Segovia Vargas (1) , José A. López Fernández (2) . [email protected] , [email protected] , [email protected] , [email protected] , [email protected] , [email protected] , [email protected] . (1) Dpto. de Teoría de la Señal y Comunicación, Universidad Carlos III de Madrid. Avda. de la Universidad 30, 28911 Leganés Madrid (España). (2) Centro Astronómico de Yebes, Observatorio Astronómico Nacional. Cerro de la Palera s/n, 19141 Yebes Guadalajara (España). (3) Dpto. de Ingeniería Audiovisual y Comunicaciones, Universidad Politécnica de Madrid. Ctra. Valencia km. 7, 28031 Madrid (España). Abstract - Differential amplifiers can be an appropriate solution in the implementation of radio astronomy receivers, due to their efficient interference and harmonic isolation. In this paper, two different topologies are presented. The first one consists of two single ended amplifiers in a balanced topology. The second one is formed by cascading two simple differential stages. Both circuits operate in the 300MHz to 1GHz bandwidth. Firstly, gain and noise characterizations of each amplifier have been done. Lastly, noise analysis of the whole reception system, formed by the antenna and the differential amplifiers, is presented. I. I NTRODUCCIÓN El proyecto SKA ( Square Kilometer Array ) es un esfuerzo de la comunidad internacional para investigar y desarrollar las tecnologías necesarias para construir un nuevo radiotelescopio en una extensión de un kilómetro cuadrado de área [1]. Este instrumento va a ser mucho más sensible que los radiotelescopios actuales, y va a funcionar en un ancho de banda comprendido entre los 100MHz y los 25GHz.
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  • Spring '16
  • España, Observatório, Kilómetro, Radiotelescopio, Universidad Politécnica de Madrid

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