Superconductive parallel junctions arrays for Submm-wave local oscillator applications

We are developing Submillimiter-wave fully Integrated superconducting Receivers (SIRs) based on SIS mixer and SIS Multijunction operating as local oscillator. In deed, Multijunctionbased FFOs may be an interesting alternative to LJJ-based FFOs in SIRs, allowing wide LO tunability, wide impedance matching bandwidths, and increased design flexibility and control of technological parameters. In this paper, we will present a numerical study of the Josephson electrodynamics in this kind of device and measurement results of output power from 5 junction array with current density of ~ 10 kA/cm2 at submm-wave frequencies. 18th International Symposium on Space Terahertz Technology