[21p-C301-1~13] 11.5 Junction and circuit fabrication process, digital applications

4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)

[21p-C301-12] Design of a Cryogenic Microwave Generator based on SFQ Pulse-Frequency Modulation

〇Seiya Hayashi¹, Hiroshi Shimada¹, Yoshinao Mizugaki¹ (1.The Univ. of Electro-Comm.)

Keywords:

Superconducting integrated circuit,Single flux quantum circuit,Digital to analog conversion

D-A converters with RSFQ circuits are expected to be applied AC voltage standards because of their performance to generate high precision voltage based on the Josephson effect. The Σ-SBS type D-A converter with pulse frequency modulation can modulate the SFQ pulse frequency up to 100 GHz. In this study, we propose and design a microwave generater for qubit control as a new application of the Σ-SBS D-A converter. Furthermore, designed microwave generater generated the signals corresponding to pseudo-sin wave at 1GHz by simulation.