Noise properties of HTS Josephson mixers at 345 GHz and operating temperatures at 20 K.

The authors report on the mixing properties of high-temperature superconductor bicrystal Josephson junctions at 345 GHz and high-operating temperatures. A variable backshort and E-plane tuner enabled the control of impedance matching between the junction and the RF environment. The local oscillator...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:	IEEE Transactions on applied superconductivity 12, 2 (2002).
1. Verfasser:	Scherbel, J.
Format:	Artikel
Sprache:	English
Schlagworte:	20 K. 345 GHz. E-plane tuner. HTSC Josephson mixers. RF environment. Shapiro step. Bicrystal Josephson junctions. Conversion efficiency. Critical currents. Double-side band noise temperature. Grain-boundary Josephson junctions. High-operating temperatures. Hot/cold method. Impedance matching. Intermediate frequency. Local oscillator frequency. Noise properties. Resonances effect. Subharmonic step. Submillimeter wave. Variable backshort.