HIGH-TC HARMONIC MIXER APPLIED TO JOSEPHSON-JUNCTION ARRAY VOLTAGE STANDARD AT NIM

Authors
XUE SQ LI HH SHEN XC WANG HB XU WW CHENG QH WU PH
Citation
Sq. Xue et al., HIGH-TC HARMONIC MIXER APPLIED TO JOSEPHSON-JUNCTION ARRAY VOLTAGE STANDARD AT NIM, IEEE transactions on instrumentation and measurement, 46(2), 1997, pp. 250-252
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
IEEE transactions on instrumentation and measurement → ACNP
ISSN journal
00189456
Volume
46
Issue
2
Year of publication
1997
Pages
250 - 252
Database
ISI
SICI code
0018-9456(1997)46:2<250:HHMATJ>2.0.ZU;2-K
Abstract
A high-Tc superconducting (YBCO) Josephson-junction harmonic mixer has been used to improve the spectrum purity of the microwave source in t he JJAVS at the National institute of Metrology (NIM). Compared with t he microwave source using source-locking counter EIP 578B, the spectru m purity: of the microwave source has been improved significantly from -25 dBc/Hz (offset +/-50 kHz) to -58 dBc/Hz (offset +/-10 kHz), There fore, the random uncertainty of the JJAVS was reduced.