Heterodyne detector using a SNS junction

Author

Luiz, A.M. ; Pereira, L.A.A. ; Nicolsky, R.

Author_Institution

Inst. de Fisica, Univ. Fed. do Rio de Janeiro, Brazil

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

3719

Lastpage

3721

Abstract

We propose new designs for millimeter-wave heterodyne detectors using the negative differential resistance of SNS junctions. The SNS junction may be used as the local oscillator in conventional receivers or a single SNS junction may be simultaneously used as the local oscillator and as the mixer itself, taking advantage of the nonlinearity of the current-voltage characteristic (CVC) of the junction. We calculate CVC curves for high-Tc SNS junctions (YBCO-SNS junctions), which are expressed as a function of T/Tc and other parameters.

Keywords

demodulation; millimetre wave detectors; negative resistance devices; superconducting junction devices; superconducting microwave devices; SNS junction; YBCO; YBaCuO; current-voltage characteristics; high-Tc superconductor; local oscillator; millimeter-wave heterodyne detector; mixer; negative differential resistance; nonlinearity; receiver; Current-voltage characteristics; Detectors; Frequency; Josephson junctions; Local oscillators; Reflection; SQUIDs; Superconducting devices; Superconducting microwave devices; Superconducting photodetectors;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.622226

Filename

622226