Submillimeter Telescopes

Phillips, T. G.; Padin, S.; Žmuidzinas, J.

doi:10.1007/978-94-007-5621-2_7

Cited by 5 publications

(2 citation statements)

References 76 publications

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“…A number of prominent space-and ground-based telescopes dedicated to cosmology (described in the next section) also operate in the submillimeter regime. For additional reading on submillimeter telescopes specifically, Phillips et al 2013 is recommended.…”

Section: Other Large Dishes For Cm-wavelengths and Longermentioning

confidence: 99%

Antennas in Radio Telescope Systems

Ellingson

2015

Handbook of Antenna Technologies

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Radio astronomy is the study of the universe by measurement of radio frequency emission at frequencies ranging from a few MHz to the far infrared. Signals of interest are typically extraordinarily weak, necessitating large effective aperture and resulting in some of the world's largest antenna systems. Technologies now commonly employed include reflector antennas ("dishes") using horn-type feeds or feed arrays, beamforming arrays consisting of elements ranging from dipoles to large dishes, and interferometry. Many problems in radio astronomy also require very fine angular resolution, leading to aperture synthesis imaging instruments consisting of antennas distributed over apertures ranging from hundreds of meters to intercontinental distances. This chapter provides a brief review of antenna systems used in operational modern radio telescopes and in anticipated new radio telescopes.

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Section: Other Large Dishes For Cm-wavelengths and Longermentioning

confidence: 99%

Antennas in Radio Telescope Systems

Ellingson

2015

Handbook of Antenna Technologies

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“…Research on this band needs to consider both fluctuation and quantum effects of the wave. It is the last electromagnetic band that has not been fully understood and utilized by humans [1][2][3]. From an astronomical perspective, due to the fact that most of the characteristic spectral lines of the photons, interstellar molecules, and cold and dark celestial bodies created by the Big Bang are in the submillimeter range, and the extinction of interstellar media in submillimeter is much lower than that of visible/near-infrared light, submillimeter observations are of great significance for studying the formation and evolution of galaxies and the universe.…”

Section: Introductionmentioning

confidence: 99%

Design of 345/650 GHz SIS mixers: backup for the LCT dual-color heterodyne receiver

Wang,

Li,

Chen

et al. 2023

Infrared, Millimeter-Wave, and Terahertz Technologies X

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The Leighton Chajnantor Telescope (LCT) is an international cooperation project among Caltech, University of Concepcion (UdeC), and Shanghai Normal University (ShNU), which aims to relocate the Caltech Submillimeter Observatory (CSO) telescope from Mauna Kea, Hawaii to the Chajnantor plateau in northern Chile. ShNU has the opportunity to upgrade a 345/650 GHz dual-color SIS receiver, which was made by Caltech, for the LCT. In order to technically support this dual-color receiver, 345/650 GHz SIS mixers were designed and optimized based on the existing superconducting technology in the lab of ShNU. Within the proposed frequency range, both mixers show good sensitivity and gain characteristics. The optimized mixers show a DSB noise temperature of 24K and a conversion gain of 4.2dB at 345GHz, and a DSB noise temperature of 61K and a conversion gain of -2.9dB at 650GHz, respectively. Detailed design and results will be provided.

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Antennas in Radio Telescope Systems

Ellingson¹

2016

Handbook of Antenna Technologies

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Submillimeter Telescopes

Cited by 5 publications

References 76 publications

Antennas in Radio Telescope Systems

Antennas in Radio Telescope Systems

Design of 345/650 GHz SIS mixers: backup for the LCT dual-color heterodyne receiver

Antennas in Radio Telescope Systems

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