II. Applications of the Josephson Effect
II. Applications of the Josephson Effect
II. Applications of the Josephson Effect
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R. Gross, A. Marx, and F. Deppe © Wal<strong>the</strong>r-Meißner-Institut (2001 - 2013)<br />
4.4.5 Radi<strong>of</strong>requency Amplifiers<br />
AS-Chap. 4 - 58<br />
tuned amplifier:<br />
- input circuit: R i , C i , and L i<br />
- for frequencies up to 100 MHz<br />
- noise temperature close to <strong>the</strong> quantum limit T N ≈ hn / k B