Abstract-In this paper, simple autonomous chaotic circuits

coupled by resistors are investigated. By carrying out computer

calculations and circuit experiments, irregular self-switching phenomenon

of three spatial patterns characterized by the phase

states of quasi-synchronization of chaos can be observed from

only four simple chaotic circuits. This is the same phenomenon

as chaotic wandering of spatial patterns observed very often from

systems with a large number of degrees of freedom. Namely, one

of spatial-temporal chaos observed from systems of large size can

be also generated in the proposed system consisting of only four

chaotic circuits. A six subcircuits case and a coupled chaotic circuits

networks are also studied, and such systems are confirmed

to produce more complicated spatio-temporal phenomena.