Millimeter-wave radiation in high-T/sub c/ Josephson junctions

We have investigated millimeter-wave radiation from single Josephson junctions and small phase-locked Josephson junction arrays. Josephson junctions were fabricated on sapphire bicrystal substrates. Emission could be measured up to 110 GHz. Resonances in ten-junction circuits yield linewidths narrow...

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Veröffentlicht in:	IEEE transactions on applied superconductivity 1997-06, Vol.7 (2), p.3339-3342
Hauptverfasser:	Kunkel, G., Hechtfischer, G., Frommberger, M., Veit, K., Kleiner, R., Muller, P., Prusselt, W., Kinder, H., Ferchland, L., Daalmans, G., Ono, R.H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antenna measurements Electromagnetic radiation Frequency Integrated circuit measurements Josephson junctions Microwave radiometry Millimeter wave technology Phased arrays Resonance Substrates
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Beschreibung
Zusammenfassung:	We have investigated millimeter-wave radiation from single Josephson junctions and small phase-locked Josephson junction arrays. Josephson junctions were fabricated on sapphire bicrystal substrates. Emission could be measured up to 110 GHz. Resonances in ten-junction circuits yield linewidths narrower than 200 MHz. This type of array might be useful for applications in integrated receiver systems.
ISSN:	1051-8223 1558-2515
DOI:	10.1109/77.622080