Davies, S.R. and Little, L.T. (1998) Low noise SIS receiver performance using Pb alloy tunnel junctions. IEE Proceedings-Microwaves Antennas and Propagation, 145 (5). pp. 375-8. ISSN 1350-2417.
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| Official URL http://dx.doi.org/10.1049/ip-map:19982251 |
Abstract
A receiver noise temperature of 61 K (DSB) has been measured for a superconductor-insulator-superconductor (SIS) heterodyne receiver operating at 232 GHz, the lowest value reported to date for such a receiver employing a lead alloy junction. Analysis of the losses of the receiver components yields mixer noise temperature and conversion loss, T-m = 24 K and L-m = 2.1 dB (DSB). These are compared with predictions based on 3-port quantum mixer theory, made using the measured characteristics of the junction and an equivalent circuit for the waveguide mixer mount deduced from scaled modelling experiments.
| Item Type: | Article |
|---|---|
| Uncontrolled keywords: | lead alloy junction; SIS heterodyne receiver; noise temperature; conversion loss; scaled modelling experiments |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunications T Technology T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts |
| Depositing User: | I. Ghose |
| Date Deposited: | 01 Apr 2009 17:01 |
| Last Modified: | 01 Apr 2009 17:01 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/17682 (The current URI for this page, for reference purposes) |
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