Type Name: jj
The default Josephson junction model is an extended version of the RSJ model as used by Jewett. There are actually three Josephson junction models available, through the level model parameter, which can take values 1 through 3. The default level=1 model is the RSJ model mentioned. This model has a simplified Verilog-A version which can be found among the Verilog-A examples. This can be compiled with the adms utility into a run-time loadable module which can be loaded with the devload command. A pre-compiled module is provided with the example. Once loaded into WRspice, the model can be accessed with level=2>.
For level=3, a microscopic tunnel junction ``Werthamer'' model, also known as a tunnel junction model (TJM) is provided. The model is more physics-based than the empirical RSJ model.