Title :
Low leakage noise filter for direct comparison of two Josephson junction arrays in 102212;10 uncertainty level
Author :
Kim, Kyu-Tae ; Kim, Mun-Seog ; Song, Woon ; Chong, Yonuk ; Kim, Wan-Seop
Author_Institution :
Korea Res. Inst. of Stand. & Sci., Daejeon
Abstract :
High insulation low pass filters (LPFs) are often useful to improve the step stability of the Josephson array. However ordinarily available capacitors of high insulation at DC usually show a large transient leakage effect when the polarity of input voltage is reversed. A low leakage LPF with polarity reverse switch was made to reduce the transient leakage effect. The characteristics and its effect on the accuracy are evaluated using two Josephson arrays as voltage sources.
Keywords :
arrays; capacitors; low-pass filters; superconducting junction devices; Josephson junction array; capacitor; high insulation low pass filters; low leakage noise filter; polarity reverse switch; transient leakage effect; uncertainty level; voltage source; Capacitance; Capacitors; Circuit noise; Insulation; Josephson junctions; Leakage current; Low pass filters; Noise level; Switches; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location :
Broomfield, CO
Print_ISBN :
978-1-4244-2399-6
Electronic_ISBN :
978-1-4244-2400-9
DOI :
10.1109/CPEM.2008.4574742
