Search Results - "MENA, F. P"
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High Efficiency Wideband Refractive Optics for ALMA Band-1 (35-52 GHz)
Published in Journal of infrared, millimeter and terahertz waves (01-03-2017)“…We present the design, implementation, and characterization of the optics of ALMA Band 1, the lowest frequency band in the most advanced radio astronomical…”
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Optical conductivity of CeMIn5 (M=Co, Rh, Ir)
Published in Physical review. B, Condensed matter and materials physics (15-07-2005)Get full text
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Mapper of the IGM spin temperature: instrument overview
Published in Monthly notices of the Royal Astronomical Society (06-05-2024)“…ABSTRACT The observation of the global 21 cm signal produced by neutral hydrogen gas in the intergalactic medium (IGM) during the Dark Ages, Cosmic Dawn, and…”
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Design and Performance of a 600-720-GHz Sideband-Separating Receiver Using } and AlN SIS Junctions
Published in IEEE transactions on microwave theory and techniques (01-01-2011)“…We present the design, modeling, construction, and characterization of a sideband separating heterodyne receiver that covers the frequency range from 600 to…”
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Modeling and Testing Superconducting Artificial CPW Lines Suitable for Parametric Amplification
Published in IEEE transactions on applied superconductivity (01-09-2024)“…Achieving amplification with high gain and quantum-limited noise is a difficult problem to solve. Parametric amplification using a superconducting transmission…”
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New opportunities offered by Cubesats for space research in Latin America: The SUCHAI project case
Published in Advances in space research (15-11-2016)“…During the last decade, a very small-standardized satellite, the Cubesat, emerged as a low-cost fast-development tool for space and technology research…”
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Optimizing Superconducting Matching Circuits for Nb SIS Mixers Operating Around the Gap Frequency
Published in IEEE transactions on applied superconductivity (01-06-2007)“…The bandwidth and noise temperature of superconducting-insulating-superconducting (SIS) mixers are strongly determined by the matching between antenna and…”
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Journal Article Conference Proceeding -
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Manifestation of multiband optical properties of MgB2
Published in Solid state communications (07-03-2002)Get full text
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Optical measurements of the superconducting gap in MgB2
Published in The European physical journal. B, Condensed matter physics (02-05-2001)Get full text
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ALMA band 2+3 (67-116 GHz) optics: Design and first measurements
Published in 2016 IEEE International Symposium on Antennas and Propagation (APSURSI) (01-06-2016)“…The ALMA telescope is one of the largest on-ground astronomical projects in the world. It has been producing great scientific results since the beginning of…”
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Conference Proceeding -
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Redistribution of the c-axis spectral weight and conductivity sum rules in LSCO as revealed by optical transmission
Published in Physica. C, Superconductivity (01-08-2004)“…Optical transmission measurements provide a detailed picture of redistribution of the c-axis spectral weight of La 2− x Sr x CuO 4 ( x=0.12, 0.15) and allows…”
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Optimization of Antenna Performance for Global 21-cm Observations and Verification Using Scaled Copies
Published 04-12-2023“…Journal of Astronomical Instrumentation, Volume 12, id. 2350005, 2023 The sky-averaged cosmological 21 cm signal can improve our understanding of the evolution…”
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The LSPE-Strip beams
Published 26-01-2022“…JINST 17 P01028 (2022) In this paper we describe the design and characterization of the optical system of LSPE/Strip, a coherent polarimeter array that will…”
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Suppressed reflectivity due to spin-controlled localization in a magnetic semiconductor
Published in Physical review. B, Condensed matter and materials physics (01-02-2006)Get full text
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Optimized Corrugated Tapered Slot Antenna for mm-Wave Applications
Published in IEEE transactions on antennas and propagation (01-03-2018)“…We present a novel approach to design a high-performance tapered slot antenna (TSA) at millimeter-wave frequencies. Commonly, TSAs are designed using profiles…”
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Digital compensation of the side-band-rejection ratio in a fully analog 2SB sub-millimeter receiver
Published 11-06-2018“…A&A 619, A153 (2018) In observational radio astronomy, sideband-separating receivers are preferred, particularly under high atmospheric noise, which is usually…”
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Ultra-pure digital sideband separation at sub-millimeter wavelengths
Published 15-10-2015“…A&A 584, A3 (2015) Deep spectral-line surveys in the mm and sub-mm range can detect thousands of lines per band uncovering the rich chemistry of molecular…”
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A Sideband-separating Receiver with a Calibrated Digital If-Hybrid Spectrometer for the Millimeter Band
Published in Publications of the Astronomical Society of the Pacific (01-04-2014)“…Due to its advantages over other configurations, sideband-separating receivers are usually preferred for radio astronomy, particularly in the presence of high…”
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High Efficiency Wideband Refractive Optics for ALMA Band-1 (35-52 GHz): Design, Implementation, and Measurement Results
Published in Journal of infrared, millimeter and terahertz waves (01-03-2017)“…We present the design, implementation, and characterization of the optics of ALMA Band 1, the lowest frequency band in the most advanced radio astronomical…”
Get full text
Journal Article