A.A. Golovkov - Dr Sc. (Eng.), Professor, Honored inventor of the Russian Federation, Department of Aviation Systems and Radio Navigation and Radio Communication Suites, Military Educational and Scientific center of the Air Force - N. E. Zhukovsky and Y. A. Gagarin Air Force Academy - (Voronezh) V.A. Golovkov - Design engineer, Voronezh Design Office of Antenna-Feeder Devices E-mail: vladimir. golovkov @ yandex. ru N.A. Druzhinina - Electronics Engineer, Military Educational and Scientific Center of the Air Force - N. E. Zhukovsky and Y. A. Gagarin Air Force Academy - (Voronezh)

There were developed algorithms of parametric synthesis of four block diagrams of angle signal demodulators and amplifiers specified by cascade connection of signal source, non-linear part containing multi-polar non-linear element and feedback circuit, integrated four-pole network and loading. Relationships between elements of classical matrix for transfer of integrated four-pole devices to be optimum by the criterion to provide specified forms of amplitude-frequency and phase-frequency response of amplifier transfer functions and high-frequency section of demodulators taking into account various external feed-back circuits. It was shown that the resultant relations physically mean requirements to provide specified values of input conductance for integrated four-pole devices. To provide carrying out of these requirements, there were defined impedance-versus-frequency dependences of integrated two-terminals within standard for-pole networks and mathematical models of quasi-optimal two-terminals providing implementation of these dependences in a limited bandwidth. In that specific case, results of the work coincide with the known results of self-excited oscillator synthesis. The comparative analysis of the theoretical results obtained on the basis of use of the developed mathematical models of demodulators and amplifiers in the MathCad system and the experimental results received by their general-circuit simulation in the OrCad and MicroCap systems proved their satisfactory coincidence.

 

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