Distributed Josephson junction arrays as local oscillators

Author

Bi, B. ; Han, S. ; Lukens, J.E. ; Wan, K.

Author_Institution

Dept. of Phys., State Univ. of New York, Stony Brook, NY, USA

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

2303

Lastpage

2306

Abstract

The power and linewidth of the radiation, near 250 GHz, of small distributed Josephson junction array sources have been measured using a single-chip integrated source and receiver. The intermediate frequency (IF), coupled off the chip to a room-temperature spectrum analyzer, permitted a direct measurement of the oscillator linewidth. The one-dimensional arrays were of a novel design with junctions placed in 1/4 wavelength lumps separated by one half wavelength. The measured power ( approximately=2 mu W) and linewidth ( approximately=10 MHz) for the 10 junction sources were in reasonable agreement with those obtained from computer simulations.<>

Keywords

Josephson effect; microwave integrated circuits; microwave oscillators; mixers (circuits); receivers; superconducting integrated circuits; superconducting junction devices; superconducting microwave devices; 250 GHz; distributed Josephson junction array sources; integrated submillimetre wave receiver; intermediate frequency; local oscillators; lumped arrays; mixer; one-dimensional arrays; oscillator linewidth; quasi-lumped arrays; single-chip integrated source; Computer simulation; Equations; Josephson junctions; Local oscillators; Microstrip; Power measurement; Radio frequency; Semiconductor device measurement; Voltage; Wavelength measurement;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233544

Filename

233544