Backward wave tub - sources of mm chaotic oscillation

In this paper is considered a new approach to excitation of millimeter noiseoscillations with mean power about some watts and using the dynamic properties ofbackward wave oscillators. A low quality factor oscillator systems of millimeterwave band are used for increase in interaction efficiency and decrease in workingcurrent. Autooscillation behaviors of a BWI' are studied and a main characteristicsof the excited chaotic oscillations are presented.