%0 Journal Article
%T Superconducting hot-electron bolometer mixer as element of thermal imager matrix
%A Ozhegov, R. V.
%A Gorshkov, K. N.
%A Okunev, O. V.
%A Gol’tsman, G. N.
%J Tech. Phys. Lett.
%D 2010
%V 36
%N 11
%@ 1063-7850
%F Ozhegov_etal2010
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1390), last updated on Fri, 14 May 2021 00:07:11 -0500
%X The possibility of using a matrix of sensitive elements on a 12-mm-diameter hyperhemispherical lens in a thermal imager operating in the terahertz range has been studied. Dimensions of a lens region acceptable for arrangement of the matrix, in which the receiver noise temperature varies within 16% of the mean value, are determined to be 3.3% of the lens diameter. Deviations of the main lobe of the directivity pattern are evaluated, which amount to ±1.25° relative to the direction toward the optimum position of a mixer. The fluctuation sensitivity of the receiver measured in experiment is 0.5 K at a frequency of 300 GHz.
%K HEB mixers
%R 10.1134/S1063785010110106
%U http://link.springer.com/10.1134/S1063785010110106
%U https://doi.org/10.1134/S1063785010110106
%P 1006-1008