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Algorithms of parametric synthesis of generators with respect to the criterion of ensuring a steady-state generation of complex four-poles in the feedback circuit of self-excited oscillators

Keywords:

A.A. Golovkov - Dr.Sc. (Eng.), Professor, Military Educational-Scientific Center of air Forces of the «Military-Air Academy named after Professor N.E. Zhukovsky and Yu. A. Gagarin» (Voronezh) V.A. Golovkov - Desing Engineer, Voronezh Desing Bureau of the Antenna-Feeder Devices. E-mail: vladimir.golovkov@yandex.ru


On the basis of immitansny criterion of stability optimum interrelations between elements of a classical matrix of transfer soglasuyushchy for the first time are determined by criterion of providing a stationary mode of generation of the complex two-port networks which are switched on in a chain of external feedback of oscillators. The received interrelations, making sense the characteristic equations, are used for search of frequency characteristics of complex two-poles and areas of physical feasibility for different types of chains of feedback (parallel on tension, consecutive on a current, consecutive on tension and parallel on a current). In that specific case (without characteristics of loading and a nonlinear element) these interrelations are transformed to equality to zero of one of elements of a classical matrix of transfer of the two-port network. For example, when using the P-shaped two-port network in a chain of parallel feedback on tension this result are reduced to a known condition of a stationary mode generation of three-dot oscillators (Hartley and Kolpittsa\'s generators) in the form of equality to zero of the sum of resistance of all two-poles of this two-port network. It is shown that borders of areas of physical feasibility of a stationary mode of generation on Smith\'s chart represent the godograf similar to godograf, received by it for soglasuyushchy by criterion of providing a minimum of the reflected signal of devices. Results of work can be extended to synthesis of oscillators with internal feedback.
References:

 

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