Josephson junction fluxon oscillators of in-line geometry

Resonant fluxon propagation on an in-line geometry Josephson tunnel junction of length 5λJhaving a McCumber βc=5π is studied by numerical integration of the circuit equations of a 50-section RSJ-type model. Dc current-voltage characteristics and microwave emission spectra are calculated and shown to be qualitatively similar to, although quantitatively somewhat different from, corresponding results for an overlap geometry junction.