Superconductor mixer and phase control method therefor
US5920811A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 16, 1997 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Jun 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D7/005
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a superconductor mixer, a non-linear element is provided on a substrate. The non-linear element comprises at least one Josephson junction connected in series. An antenna pattern of superconductor, an intermediate frequency output pattern of superconductor, and a bias current pattern of superconductor are connected to the non-linear element. A signal high frequency wave (RF) and a local reference frequency wave (LO) are received by the antenna pattern and then absorbed in the non-linear element to obtain an intermediate frequency (IF) signal. Then, with applying a current to the series connected Josephson junction in the non-linear element from the bias current pattern, the intermediate frequency (IF) signal as a frequency signal of a difference between the signal high frequency wave (RF) and the local reference frequency wave (LO) is output to the intermediate frequency output pattern. At this time, by varying the current supplied from the bias current pattern, a phase of the output intermediate frequency (IF) signal is varied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.