Ponències/Comunicacions de congressos: Enviaments recents

Ara es mostren els items 13-24 de 151

    • Small footprint evaluation of metal coatings for additive manufacturing 

      Krkotic, Patrick; Aguasca Solé, Alberto; O'Callaghan Castellà, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      Rutile resonators have been used in the past to characterize high-temperature superconductors. In this work we describe a novel use of this type of resonator: the characterization of surface resistance in metal coatings ...

    • New methodology for the Faraday rotation angle retrieval in the SMOS field of view 

      Rubino, Roselena; Duffo Ubeda, Núria; González Gambau, Verónica; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      In this work, a new methodology to estimate the Faraday Rotation Angle (FRA) from SMOS full-pol brightness temperature is presented. This approach is focused on retrieving the Vertical Total Electron Content (VTEC) and ...

    • SMOS instrument performance after more than 8 years in orbit and lessons learnt for future L-band missions 

      Martín Neira, Manuel; Oliva Balagué, Roger; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Duffo Ubeda, Núria; Durán Martínez, Israel; Kainulainen, Juha; Closa Soteras, Josep; Zurita Campos, Alberto Manuel; Cabot, François; Khazaal, Ali; Anterrieu, E.; Barbosa, José; Tenerelli, Joseph; Díez, Raúl; Turiel, Antonio; González Gambau, Verónica (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    • A submillimeter wave parabolic reflector by additive manufacturing 

      Romeu Robert, Jordi; Aguasca Solé, Alberto; Blanch Boris, Sebastián; O'Callaghan Castellà, Juan Manuel; Jofre Roca, Lluís; Buitrago Ventura, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      The manufacturing of prototype of an offset parabolic reflector to operate at 120 GHz is presented. The paper describes the different metallization options to achieve a good performance.

    • Dispositivos coaxiales micromecanizados para banda milimétrica 

      Jaimes Vera, Edith Aline; Llamas Garro, Ignacio; Maolong, Ke; Wang, Yi; Lancaster, Michael J.; Pradell i Cara, Lluís (2010)
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      This paper presents compact micromachined coaxial devices for millimeter wave applications at U and V bands. The coaxial center conductor is suspende d in air by short circuits to the outer conductor. The designs include ...

    • Impact of antenna tuning on SMOS correlation loss 

      Torres Torres, Francisco; Durán Martínez, Israel; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Closa, Josep; Oliva, Roger; Martín-Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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      The Soil Moisture and Ocean Salinity (SMOS) mission by the European Space Agency (ESA) was launched in 2009 [1]. Since then, it has produced a continuous stream of valuable geophysical data over land, ice and ocean [2] ...

    • Comprehensive circuit model of auto-limiting superconductor devices and systems 

      Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Hueltes Escobar, Alberto; O'Callaghan Castellà, Juan Manuel; García Pastor, David; Perea Robles, Rafael; Joshi, N.; Lu, X.; Orloff, Nathan D.; Booth, James C. (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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      This paper presents a phenomenological equivalent circuit to model the phenomenon occurring when a section of superconducting transmission line transits from a superconducting state to a normal state. This phenomenon allows ...

    • Modelos físicos y técnicas de medida de ruido de transistores MESFETS y HEMT a frecuencias de microondas 

      Pradell i Cara, Lluís; Purroy, Francesc; O'Callaghan Castellà, Juan Manuel (1996)
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    • Lugares geométricos de mal condicionamiento y constelaciones de admitancias de fuentes utilizadas en la extracción de parámetros de ruido 

      O'Callaghan Castellà, Juan Manuel; Pradell i Cara, Lluís; Corbella Sanahuja, Ignasi (1996)
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    • Sistema de medida de paráemtros de ruido con generación automática de configuraciones de impedancia de fuente 

      Pradell i Cara, Lluís; Fauna, G; O'Callaghan Castellà, Juan Manuel; Lázaro Guillén, Antoni (1996)
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    • Reconfigurable multimodal bandpass filter based on RF-MEMS switchable CPW air-bridges 

      Contreras Bleda, Adrián; Casals Terré, Jasmina; Pradell i Cara, Lluís; Giacomozzi, Flavio; Iannacci, Jacopo; Ribó i Pal, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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      In this paper, a uniplanar RF-MEMS secondorder bandpass filter with reconfigurable centre frequency is presented. It is based on quarter-wavelength slotline resonators and CPW-slotline multimodal immittance inverters (MIIs), ...

    • Filtro en plano E a 60 GHz 

      Porta, A.; Carrasco, L.M.; de Mingo, J.; Corbella Sanahuja, Ignasi; Pradell i Cara, Lluís (Universidad de Málaga, 1992)
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