Heterodyne Array Receivers for Space and Ground Based Applications
HAL (Le Centre pour la Communication Scientifique Directe), pp. 13
Abstract
The first heterodyne array receivers have been successfully built for ground-based telescopes and airborne observatories. In the talk we give a very quick overview of some prior heterodyne arrays. In particular, we will look at the innovations they introduced and how these could be applied to future large (100 to 1000 pixel) arrays or space missions. Then we will present the first detailed design for a space application, the Heterodyne Receiver for the Origins Space Telescope (HERO). HERO follows the traditional design, but limited cooling power and the limited electrical power of the satellite pose major challenges. Minor challenges are limited availability of space and weight. For the eight 3x3 pixel arrays of which 4 can operate simultaneously we attributed 20mW at 4.5K, 35mW at 35K and 205 W at the satellite temperature. Therefore we propose to use SiGe cryogenic low noise amplifiers, with a dissipation of about 0.5mW for 6 GHz bandwidth. The power of the backends also needs to be reduced drastically to about 1 W for 6 GHz bandwidth. CMOS ASIC backends are one option, ADC, followed by FFTs and ACCs another. To reduce the volume and mass, we propose the cover the RF bandwidth of 486 GHz to 2700 GHz in only 4 bands, each with about 50% relative width.The design might not only be a helpful starting point for any heterodyne array on a satellite, but the low heat and power consumption might be also an essential first step for large (100 to 1000 pixels) heterodyne arrays for ground based telescopes or simply a more energy efficient alternative for any ALMA single pixel or array receiver.
Authors 17
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Centre National de la Recherche Scientifique · Université Paris Sciences et Lettres · Observatoire de Paris · Sorbonne Université · Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères
Affiliation as printed
Observatoire de Paris, LERMA, CNRS, PSL University, Sorbonne Université
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University of California, Irvine
Affiliation as printed
UoC at Irvine
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Centre National de la Recherche Scientifique · Université Paris Sciences et Lettres · Observatoire de Paris · Sorbonne Université · Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères
Affiliation as printed
Observatoire de Paris, LERMA, CNRS, PSL University, Sorbonne Université
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Goddard Space Flight Center · National Aeronautics and Space Administration
Affiliation as printed
NASA/GSFC
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Ames Research Center · Space Telescope Science Institute · Universities Space Research Association
Affiliation as printed
SOFIA-USRA, NASA Ames Research Cente, Space Telescope Science Institute
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Affiliation as printed
Kapteyn Astronomical Institute, University of Groningen
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Chalmers University of Technology
Affiliation as printed
Group for Advanced Receiver Development, Chalmers
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Chalmers University of Technology
Affiliation as printed
Group for Advanced Receiver Development, Chalmers
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Institute for Space Astrophysics and Planetology · National Institute for Astrophysics
Affiliation as printed
Istituto Nazionale di Astrofisica-Istituto di Astrofisica e Planetologia Spaziali, Rome
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Affiliation as printed
Centro Astronómico de Yebes, Observatorio Astronómico Nacional, Spain
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Affiliation as printed
Jet Propulsion Laboratory, USA
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Space Research Organisation Netherlands
Affiliation as printed
SRON Netherlands Institute for Space Research
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Space Research Organisation Netherlands
Affiliation as printed
SRON Netherlands Institute for Space Research
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Centre National d'Études Spatiales
Affiliation as printed
Centre National d'Études Spatiales, France
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Affiliation as printed
Jet Propulsion Laboratory, USA
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Institut de Radioastronomie Millimétrique
Affiliation as printed
IRAM, Grenoble, France, MPI fuer Radioastronomie, Bonn, Germany
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