Title :
Noise comparison of biased and unbiased even-harmonic Josephson mixers
Author :
Yamaguchi, A. ; Kita, S. ; Fujisawa, K.
Author_Institution :
Osaka University, Department of Electrical Engineering, Faculty of Engineering Science, Toyonaka, Japan
Abstract :
The excess noise in biased and unbiased even-harmonic Josephson mixers is studied numerically. The results show that the unbiased mixing has much lower excess noise. This is attributed to the nonexistence of noise down-conversions due to the odd-harmonic mixing and the Josephson mixing.
Keywords :
Josephson effect; electron device noise; mixers (circuits); solid-state microwave circuits; superconducting junction devices; 70 GHz; biased mixers; even-harmonic Josephson mixers; excess noise; noise down-conversions; odd-harmonic mixing; solid-state microwave circuits; submillimetre-wave detectors; superconducting junction devices; unbiased mixing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850282
