TY  - CONF
AU  - Dzardanov, A.
AU  - Ekstrom, H.
AU  - Gershenzon, E.
AU  - Gol'tsman, G.
AU  - Jacobsson, S.
AU  - Karasik, B.
AU  - Kollberg, E.
AU  - Okunev, O.
AU  - Voronov, B.
AU  - Yngvesson, S.
PY  - 1994
DA  - 1994//
TI  - Hot-electron superconducting mixers for 20-500 GHz operation
BT  - Proc. Int. Conf. on Millimeter and Submillimeter Waves and Appl.
SP  - 276
EP  - 278
VL  - 2250
IS  - 4D
AB  - Bolometdcmucers based on Nb and NbN superconducting thin films in the resistive state have been prepared for 20, 100 GHz and 350-500 GHz operation. The mixing mechanism is presumably of electron heating origin. Our measurements indicate that a conversion loss of about 6-8 dB can rather easily be achieved, and that the noise is reasonably low. The requirements on the operation mode and on the film parameters in order to obtain small conversion losses or even gain are discussed. For NbN films the availability of nearly 1 GHz IF bandwidth is experimentally demonstrated. NbN hot-electron mucers combined with slot-line tapered antenna on Si membrane or with double-dipole antenna on SiO^ substrate have been fabricated. The devices we study are considered to be very promising for use in heterodyne receivers from microwaves to terahertz frequencies.
UR  - https://doi.org/10.1117/12.2303174
DO  - 10.1117/12.2303174
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=981), last updated on Thu, 11 Feb 2021 12:20:48 -0600
ID  - Dzardanov_etal1994
ER  -