Effect of Thermal Noise and Trigger Jitter on the Operation of HTS Sampler

Author

Maruyama, Michitaka ; Suzuki, Hideo ; Hato, Tsunehiro ; Yoshida, Akira ; Tanabe, Keiichi

Author_Institution

Supercond. Res. Lab., Int. Supercond. Technol. Center, Tokyo

Volume

16

Issue

4

fYear

2006

Firstpage

1959

Lastpage

1965

Abstract

We have studied the effect of thermal noise and trigger jitter on the bandwidth of a high-T_c superconducting sampler by computer simulation and analytical calculation. Simulation results showed that the minimum I_cR_n product of the junctions required to obtain 100-GHz bandwidth is raised from 0.63 to 0.75 mV under the influence of the thermal noise at 40K. On the other hand, the maximum trigger jitter for 100-GHz bandwidth is 1.87 ps when only an averaging effect is assumed. Considering both the effects of thermal noise and trigger jitter, we found, for example, that trigger jitter must be reduced down to 1 ps to realize the bandwidth above 100 GHz with an I_cR_n product of 1 mV at an operating temperature of 40 K

Keywords

high-temperature superconductors; jitter; superconducting device noise; thermal noise; trigger circuits; 1 mV; 1.87 ps; 100 GHz; 40 K; HTS sampler; computer simulation; high-T_c superconducting sampler bandwidth; sampler circuit; thermal noise effect; trigger jitter; Bandwidth; Circuit noise; Computer simulation; High temperature superconductors; Jitter; Josephson junctions; Noise reduction; Space vector pulse width modulation; Superconducting device noise; Superconducting transmission lines; Bandwidth; equivalent jitter; high-$T_c$ superconductors; sampler circuit; thermal noise; trigger jitter;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2006.881818

Filename

4020345