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Author
Gershenzon, E. M.
;
Gol’tsman, G. N.
;
Gousev, Y. P.
;
Elant’ev, A. I.
;
Semenov, A. D.
Title
Electromagnetic radiation mixer based on electron heating in resistive state of superconductive Nb and YBaCuO films
Type
Journal Article
Year
1991
Publication
IEEE Trans. Magn.
Abbreviated Journal
IEEE Trans. Magn.
Volume
27
Issue
2
Pages
1317-1320
Keywords
YBCO, HTS, Nb HEB mixers
Abstract
A theory of an electron-heating mixer which makes it possible to calculate all the characteristics of the device is developed. It is shown that positive conversion gain is possible for such a mixer in the millimeter to near-infrared wavelength range. The dynamic range and the optimum heterodyne power can be selected from a very wide interval by varying the mixing element volume. Measurements made for Nb within the frequency range of 120-750 GHz confirm the theory. The conversion loss obtained at T=1.6 K and normalized to the element reaches 0.3 dB in the intermediate frequency band of 40 MHz; the possible noise temperature is 50 K. The estimation of noise temperature and output band for YBaCuO at T=77 yields 200 K and more than 10 GHz, respectively.
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1941-0069
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Conference
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no
Call Number
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1681
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