Pegrum, C. M. and Macfarlane, J. C. and Du, J. (2011) Modeling the behavior of HTS terahertz RSQUIDs. IEEE Transactions on Applied Superconductivity, 21 (3). pp. 349-353. ISSN 1051-8223
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
In previous work we looked in detail at simulations of our HTS Resistive DC SQUIDs (RSQUIDs) using a lumped-component model and neglecting step-edge junction capacitance. These can now be made with junctions that have a high product of critical current and normal resistance (IcRJ) and so the Josephson frequency can be above 1 THz. This calls for a more refined model of the device, which we will present here. The RSQUID series resistor is represented as a distributed combination of resistance and inductance, rather than simply a resistor in series with its self inductance. We now include junction capacitance, as the Stewart-McCumber parameter can be close to unity. We treat the RSQUID loop as a co-planar stripline, rather than as an inductor. We report a range of simulations with these enhancements to the model and comment briefly on the results in relation to potential applications of RSQUIDs as active microwave devices.
| Item type: | Article |
|---|---|
| ID code: | 40701 |
| Keywords: | noise thermometer, heterodyning, dc squid, squids, oscillator, josephson mixers, film resistive squids, josephson oscillators, substrate, temperature, superconducting microwave devices, modeling, behavior, hts terahertz, rsquids, Physics, Electrical engineering. Electronics Nuclear engineering |
| Subjects: | Science > Physics Technology > Electrical engineering. Electronics Nuclear engineering |
| Department: | Faculty of Science > Physics |
| Related URLs: | |
| Depositing user: | Pure Administrator |
| Date Deposited: | 02 Aug 2012 15:30 |
| Last modified: | 02 Aug 2012 15:30 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/40701 |
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