Pulse-time modulation of mutually coupled arrays of oscillators

This paper specifies the coupling parameters for multioscillator arrays (2( n) in number) such that nondegenerate symmetric and antisymmetric states ma y be sequentially accessed by electronic control of the coupling parameters . A requirement of this coupling configuration is that, when mutually locke d, the oscillator amplitudes are identical to one another. Thus, when the o scillator signals are combined with a series of magic-T's, the output power is the sum of the oscillator powers in the array minus some small loss in the coupling circuit for the symmetric state and zero for the antisymmetric state, Switching from one state to the other is accomplished by control of the feedback phase delay between oscillators. Ideal oscillator cases are a nalyzed for two, four, and higher numbers of oscillators by induction. By t his electronic-mode control of mutually locked oscillators, we have been ab le to generate pulse-time modulation (PTM) signals which are useful for com munication systems. We describe some results of an S-band PTM signal genera tor.