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Mathematical and circuit simulation of the amplitude and phase modulators using resistive matching device with serial connection pole nonlinear circuit element and feedback

Keywords:

A.A. Golovkov, A.A. Semenov


Formed and solved a system of algebraic equations which satisfy the criteria of a frequency dependence of the ratio of modules and the phase differences of the transfer functions of the amplitude and phase modulators with different options to include pole nonlinear element and consistent current feedback as a whole in relation to the four-resistor, for which the resulting The optimal relationship between the elements of the transmission matrix. We also obtain the mathematical model of jet-ports in the form of sets of expressions to determine the optimal dependence of the resistance of the frequency. The values of the parameters of quasi-two-terminal devices that provide real coincidence with optimal performance characteristics in a limited frequency band. It is shown that the frequency characteristics of the studied devices, resulting in the mathematical modeling of the system «Mathcad» and circuit simulation in the system «Orcad», are in satisfactory agreement.
References:

  1. Golovkov A.A., Gostev V.N. Matematicheskoe i sxemotexnicheskoe modelirovanie amplitudno-fazovy'x modulyatorov s ispol'zovaniem reaktivnogo soglasuyushhego ustrojstva pri posledovatel'nom soedinenii tryoxpolyusnogo nelinejnogo e'lementa i czepi obratnoj svyazi // Nelinejny'j mir. 2013. T. 11. №6. S. 382-386.
  2. Gavryushin V.N., Golovkov A.A. Algoritm parametricheskogo sinteza demodulyatorov signalov s uglovoj modulyacziej i ispol'zovaniem rezistivnogo soglasuyushhego ustrojstva pri posledovatel'nom soedinenii tryoxpolyusnogo nelinejnogo e'lementa i czepi obratnoj svyazi // Nelinejny'j mir. 2013. T. 11. №6. S. 363-366.

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