| Presentation | 2015-08-04 Feeding methods of SFQ pulse trains in evaluation of DFQ amplifiers Yoshiaki Urai, Hiroshi Shimada, Yoshinao Mizugaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Toward the realization of next generation AC voltage standards, RSFQ-D/A converters of the frequency modulation type have been studied. For implementation of an essential voltage multiplier (VM) component, we have focused on a double flux quantum amplifier (DFQA). In our previous studies, it was verified that a 1000-fold DFQA operated up to 600 MHz with relative errors less than ±0.1 % with SFQ pulse trains fed using a dc/SFQ converter. It is necessary to evaluate the DFQA performance at higher frequencies beyond 10 GHz for application to RSFQ-D/A converters. In this paper, we report the evaluation of a 200-fold DFQA using SFQ pulse trains generated using a dc/SFQ converter and a 64-fold pulse number multiplier (PNM). In addition, we figure out why there is certain difference in the maximum operation frequencies between the experimental over-biasing method and numerical periodic pulse feeding. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Josephson effect / Single Flux Quantum / Voltage multiplier / Superconducting integrated circuits / Nb/AlOx/Nb |
| Paper # | SCE2015-11 |
| Date of Issue | 2015-07-28 (SCE) |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2015/8/4(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yokohama National Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal processing technologies and their applications, etc. |
| Chair | Nobuyuki Yoshikawa(Yokohama National Univ.) |
| Vice Chair | |
| Secretary | (Yokohama National Univ.) |
| Assistant | Hiroyuki Akaike(Nagoya Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Superconductive Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Feeding methods of SFQ pulse trains in evaluation of DFQ amplifiers |
| Sub Title (in English) | |
| Keyword(1) | Josephson effect |
| Keyword(2) | Single Flux Quantum |
| Keyword(3) | Voltage multiplier |
| Keyword(4) | Superconducting integrated circuits |
| Keyword(5) | Nb/AlOx/Nb |
| 1st Author's Name | Yoshiaki Urai |
| 1st Author's Affiliation | The University of Electro-Communications(UEC Tokyo) |
| 2nd Author's Name | Hiroshi Shimada |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC Tokyo) |
| 3rd Author's Name | Yoshinao Mizugaki |
| 3rd Author's Affiliation | The University of Electro-Communications(UEC Tokyo) |
| Date | 2015-08-04 |
| Paper # | SCE2015-11 |
| Volume (vol) | vol.115 |
| Number (no) | SCE-173 |
| Page | pp.pp.17-22(SCE), |
| #Pages | 6 |
| Date of Issue | 2015-07-28 (SCE) |