TY  - JOUR
AU  - Meledin, D.
AU  - Tong, C. Y-E
AU  - Blundell, R.
AU  - Kaurova, N.
AU  - Smirnov, K.
AU  - Voronov, B.
AU  - Gol'tsman, G.
PY  - 2003
DA  - 2003//
TI  - Study of the IF bandwidth of NbN HEB mixers based on crystalline quartz substrate with an MgO buffer layer
T2  - IEEE Trans. Appl. Supercond.
JO  - IEEE Trans. Appl. Supercond.
SP  - 164
EP  - 167
VL  - 13
IS  - 2
KW  - NbN HEB mixer
AB  - In this paper, we present the results of IF bandwidth measurements on 3-4 nm thick NbN hot electron bolometer waveguide mixers, which have been fabricated on a 200-nm thick MgO buffer layer deposited on a crystalline quartz substrate. The 3-dB IF bandwidth, measured at an LO frequency of 0.81 THz, is 3.7 GHz at the optimal bias point for low noise receiver operation. We have also made measurements of the IF dynamic impedance, which allow us to evaluate the intrinsic electron temperature relaxation time and self-heating parameters at different bias conditions.
UR  - https://doi.org/10.1109/TASC.2003.813671
DO  - 10.1109/TASC.2003.813671
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=341), last updated on Thu, 20 May 2021 19:22:33 -0500
ID  - Meledin_etal2003
ER  -