Wide-band superheterodyne radiometers for the millimeter wavelength range

Kislyakov, A. G.; Lebskii, Yu. V.; Naumov, A. P.

doi:10.1007/bf01032962

Cited by 1 publication

(1 citation statement)

References 8 publications

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“…All 75 years of development of the Faculty of Radiophysics at the Lobachevsky State University of Nizhny Novgorod, radio astronomy and the development of equipment for radio-astronomy research have been key and, undoubtedly, successful areas of activity of its team. This work was done at the highest international level and on the basis of extensive Russian and international collaboration [3][4][5][6][7][8][9][10][11][12]. Following global trends, the studies started in the decimeter and centimeter wavelength ranges, advanced into the millimeter and sub-millimeter ranges.…”

Section: Introductionmentioning

confidence: 99%

Superconducting Receivers for Space, Balloon, and Ground-Based Sub-Terahertz Radio Telescopes

Balega

Baryshev

Bubnov

et al. 2020

Radiophys Quantum El

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We give a review of both our own original scientific results of the development of superconducting receivers for sub-terahertz astronomy and the main leading concepts of the global instrumentation. The analysis of current astronomical problems, the results of microwave astroclimate research, and the development of equipment for sub-terahertz radio astronomy studies justify the need and feasibility of a major infrastructure project in Russia to create a sub-terahertz telescope, as well as to enhance the implementation of the ongoing Millimetron and Suffa projects. The following results are discussed: i) superconducting coherent receivers and broadband subterahertz detectors for space, balloon, and ground-based radio telescopes have been developed and tested; ii) ultrasensitive receiving systems based on tunnel structures such as superconductorinsulator -superconductor (SIS) and superconductor -insulator -normal metal -insulatorsuperconductor (SINIS) have been created, fabricated, and examined; iii) a receiving array based on SINIS detectors and microwave readout system for such structures has been implemented; iv) methods for manufacturing high-quality tunnel structures Nb/AlO x /Nb and Nb/AlN/NbN based on niobium films with a current density of up to 30 kA/cm 2 have been developed. Receivers operated at 200 to 950 GHz and having a noise temperature only a factor of 2 to 5 higher than the quantum limit have been created and tested.

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