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Author  |
0kunev, 0.; Dzardanov, A.; Ekstrom, H.; Jacobsson, S.; Kollberg, E.; Gol'tsman, G.; Gershenzon, E. | ||||
| Title | NbN hot electron waveguide mixer for 100 GHz operation | Type | Conference Article | ||
| Year | 1994 | Publication | Proc. 5th Int. Symp. Space Terahertz Technol. | Abbreviated Journal | Proc. 5th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 214-224 | ||
| Keywords | waveguide NbN HEB mixers | ||||
| Abstract | NbN is a promising superconducting material used to develope hot- electron superconducting mixers with an IF bandwidth over 1 GHz. In the 100 GHz frequency range, the following parameters were obtained for NbN films 50 A thick: the noise temperature of the receiver (DSB) 1000 K; the conversion losses 10 d13, the IF bandwidth 1 GHz; the local oscillator power 1 /LW. An increase of NbN film thickness up to 80-100 A and increase of working temperature up to 7-8 K, and a better mixer matching may allow to broader the IF band up to 3 Gllz, to reduce the conversion losses down to 3-5 dB and the noise tempera- ture down to 200-300 K. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1644 | |||
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