Features of designing line radio interference filter in a wide frequency range, taking into account equivalent circuits for capacitors and inductors

Abstract

Based on the phenomenological equations describing the dynamic processes of magnetization of ferromagnets of inductors and polarization of capacitor dielectrics, taking into account complex frequency-dependent dielectric constants e(jw) of capacitor dielectrics and magnetic permeabilities m(jw) of inductor cores, equivalent electrical structural-parametric and capacitor replacement circuits were obtained. The connection of parasitic elements of equivalent electric circuits of capacitors and inductors with the electrophysical characteristics of the material of the dielectric of the capacitor and the inductor core, which determine their frequency properties, structure and parameters of the elements of the equivalent circuit, is established. The features of the design of line radio interference filter taking into account the parasitic parameters of the inductors and capacitors of line radio interference filter, found as a result of the synthesis of equivalent electric circuits of the inductors and capacitors in a wide frequency range of 150 kHz – 30 MHz.

About the authors

Vladimir F. Dmitrikov

The Bonch-Bruevich Saint-Petersburg State University of Telecommunications

Author for correspondence.
Email: dmitrikov_vf@mail.ru

Alexander Yu. Petrochenko

JSC «Concern Avrora SPA»

Email: petrochenko_a@bk.ru

Vyacheslav M. Isaev

JSC «Roselectronika»

Email: info@ruselectronics.ru

Dmitriy V. Shushpanov

The Bonch-Bruevich Saint-Petersburg State University of Telecommunications

Email: dimasf@inbox.ru

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Copyright (c) 2020 Dmitrikov V., Petrochenko A., Isaev V., Shushpanov D.

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