Parametric synthesis of matching four-poles in a feedback circuit of multistage amplifiers and autogenerators

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An algorithm for parametric synthesis of multistage amplifiers and autogenerators using reactive, resistive, mixed or complex matching four-poles included in a feedback circuit has been developed. The interrelationships between the elements of the classical feedback transmission matrix, optimal according to the selected criteria, are determined. The dependences of the resistances of a part of the two-pole of the indicated types of four-pole on the frequency optimal according to the criterion of providing the specified characteristics are obtained. In this case, the theory of four-poles, methods of matrix algebra, parametric synthesis of microwave control devices, decomposition and circuit analysis of radio devices are used. A comparative analysis of the theoretical results obtained by mathematical modeling in the MathCad system and the experimental results obtained by circuit modeling in the OrCAD and MicroCap systems shows their satisfactory agreement. In particular cases, the results of the work coincide with the known ones.

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作者简介

А. Golovkov

Military Training and Research Center of the Air Force “Military Air Academy named after Professor N.E. Zhukovsky and Yu.A. Gagarin”

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Email: 1360602@mail.ru
俄罗斯联邦, Voronezh

V. Golovkov

Military Training and Research Center of the Air Force “Military Air Academy named after Professor N.E. Zhukovsky and Yu.A. Gagarin”

Email: 1360602@mail.ru
俄罗斯联邦, Voronezh

参考

  1. Головков А.А., Головков В.А., Фомин А.В. // Сб. докл. 28-й Междунар. научно-техн. конф. “Радиолокация, навигация, связь”, Воронеж. 27–29 сент. 2022. Воронеж: Издательский дои Воронеж. гос. ун-та, 2022. Т. 6. С. 115.
  2. Головков А.А. // Физика волновых процессов и радиотехнические системы. 2023. Т. 26. № 3. С. 20.
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  9. Разевиг В.Д. Схемотехническое моделирование с помощью MicroCap-7. М.: Горячая линия Телеком, 2003.

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2. Fig. 1. Structural diagrams of multi-stage radio devices with parallel voltage (a), serial current (b), serial voltage (c), parallel current (d) feedback circuits and a nonlinear part, connected between the signal source and the frequency converter.

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3. Fig. 2. Examples of synthesized circuits.

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4. Fig. 3. Schematic diagram of a single-stage amplifier (a) with a matching resistive four-terminal network in the feedback circuit and its frequency response and phase response obtained in the “Microcap” system (b), as well as the frequency response and phase response of the equivalent circuit obtained in the “Matchad” system (c).

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5. Fig. 4. Equivalent circuit (a) of a single-stage amplifier (Fig. 3a) with a matching resistive four-terminal network in the feedback circuit and its frequency response and phase response (b), obtained in the “Orchad” system.

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