The regions of stability of coherent Josephson oscillation in a chain
of Josephson tunnel junctions with nonlocal electrodynamic coupling we
re studied by means of a numerical simulation of the dynamics of this
structure using the Wertheimer macroscopic theory of Josephson junctio
ns. The possibility of using these systems to develop generators of na
rrow-band electromagnetic radiation at frequencies of 1 THz is discuss
ed. (C) 1998 American Institute of Physics.