Stepwise waveform synthesis using a programmable Josephson junction array

Author

Kim, Mun-Seog ; Chong, Yonuk ; Kim, Kyu-Tae ; Kim, Wan-Seop ; Kwon, Sung-Won

Author_Institution

Korea Res. Inst. of Stand. & Sci., Daejeon

fYear

2008

fDate

8-13 June 2008

Firstpage

382

Lastpage

383

Abstract

A waveform synthesizer adopting a programmable Josephson voltage standard has been developed, which can produce stepwise sinusoidal waveforms with few hundred quantum voltage levels. For synthesis of waveforms, individual cells on the Josephson array chip were promptly biased using a 7-channel current source with 14-bit resolution. As an application, the synthesizer was utilized as a fast-reversed DC voltage source in evaluating the thermoelectric transfer difference for a thermal voltage converter.

Keywords

Josephson effect; convertors; measurement standards; superconducting arrays; thermoelectricity; voltage measurement; waveform generators; Josephson array chip; fast-reversed DC voltage source; programmable Josephson junction array; sinusoidal waveform; stepwise waveform synthesis; thermal voltage converter; thermoelectric transfer; voltage standard; waveform synthesizer; Circuits; High speed optical techniques; Josephson junctions; Microwave antenna arrays; Niobium; Optical arrays; Standards development; Synthesizers; Thermoelectricity; Voltage;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CPEM.2008.4574813

Filename

4574813