Title :
Pulse-Driven Josephson Junction Arrays for High-Precision AC-Voltage Synthesis of Unipolar and Bipolar Waveforms
Author :
Schubert, Marco ; Wende, Gerd ; May, Torsten ; Huebner, U. ; Meyer, Hans-Georg ; Chevtchenko, Oleg A. ; Van den Brom, Helko E. ; Houtzager, Ernest
Author_Institution :
Inst. for Phys. High Technol., Jena
fDate :
4/1/2007 12:00:00 AM
Abstract :
The paper is about development of the lumped Josephson junction arrays (JJAs) for the generation of accurate quantum-based ac voltages. By using semiconductor pattern generators, it was possible to synthesize unipolar and bipolar waveforms with amplitudes of almost 10 mV and frequencies of up to 122 kHz. Higher harmonics and other unwanted noise signals were suppressed by -90 dBc. Because of the unique layout of our JJA, it was possible to connect the circuit directly to the ground, thereby eliminating common-mode signals
Keywords :
measurement standards; superconducting arrays; superconducting junction devices; voltage measurement; waveform generators; AC Josephson voltage standard; Josephson arrays; Josephson synthesizer; bipolar waveforms; common-mode signals; high-precision AC-voltage synthesis; lumped Josephson junction arrays; pulse-driven Josephson junction arrays; quantum ac voltages; semiconductor pattern generators; unipolar waveforms; Bandwidth; Circuit synthesis; Clocks; Critical current; Frequency synthesizers; Josephson junctions; Microwave frequencies; Pulse modulation; Signal synthesis; Voltage; AC Josephson voltage standard; Josephson arrays; Josephson synthesizer;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2007.891063
