@Article{Zhang_etal2007, author="Zhang, Wen and Li, Ning and Jiang, Ling and Miao, Wei and Lin, Zhen-Hui and Yao, Qi-Jun and Shi, Sheng-Cai and Chen, Jian and Wu, Pei-Heng and Svechnikov, S. I. and Vachtomin, Y. B. and Antipov, S. V. and Voronov, B. M. and Gol{\textquoteright}tsman, G. N.", title="Noise behaviour of a THz superconducting hot-electron bolometer mixer", journal="Chinese Phys. Lett.", year="2007", volume="24", number="6", pages="1778--1781", optkeywords="NbN HEB mixers", abstract="A quasi-optical superconducting NbN hot-electron bolometer (HEB) mixer is measured in the frequency range of 0.5--2.5 THz for understanding of the frequency dependence of noise temperature of THz coherent detectors. It has been found that noise temperature increasing with frequency is mainly due to the coupling loss between the quasi-optical planar antenna and the superconducting HEB bridge when taking account of non-uniform distribution of high-frequency current. With the coupling loss corrected, the superconducting HEB mixer demonstrates a noise temperature nearly independent of frequency.", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1430), last updated on Sun, 16 May 2021 15:22:01 -0500", issn="0256-307X", doi="10.1088/0256-307X/24/6/095", opturl="https://iopscience.iop.org/article/10.1088/0256-307X/24/6/095", opturl="https://doi.org/10.1088/0256-307X/24/6/095" }