A general numerical analysis of the superconducting quasiparticle mixer
Abstract
For very low noise millimeter-wave receivers, the superconductor-insulator-superconductor (SIS) quasiparticle mixer is now competitive with conventional Schottky mixers. Tucker (1979, 1980) has developed a quantum theory of mixing which has provided a basis for the rapid improvement in SIS mixer performance. The present paper is concerned with a general method of numerical analysis for SIS mixers which allows arbitrary terminating impedances for all the harmonic frequencies. This analysis provides an approach for an examination of the range of validity of the three-frequency results of the quantum mixer theory. The new method has been implemented with the aid of a Fortran computer program.
- Publication:
-
IEEE Transactions on Magnetics
- Pub Date:
- 1985
- DOI:
- Bibcode:
- 1985ITM....21..208H
- Keywords:
-
- Insulators;
- Microwave Circuits;
- Mixing Circuits;
- Network Analysis;
- Numerical Analysis;
- Sis (Superconductors);
- Superconductors;
- Capacitance;
- Computer Programs;
- Computerized Simulation;
- Equivalent Circuits;
- Fortran;
- Josephson Junctions;
- Quantum Theory;
- Signal Analysis;
- Electronics and Electrical Engineering