Title :
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
Abstract :
We have studied the effect of thermal noise and trigger jitter on the bandwidth of a high-Tc superconducting sampler by computer simulation and analytical calculation. Simulation results showed that the minimum IcRn 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 IcRn 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-Tc 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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2006.881818
