Analysis and design of active filters with generalized impedance converter

Abstract

Studying active filters is a basic composite part of student education in electronics and communication engineering. A methodology for designing active filters with a generalized impedance converter is proposed. Profound investigations of the considered model show that the circuits based on it are some of the lowest sensitivity active sections with great stability and possibilities for realizing high quality factors. Computer simulation with the product MicroCAP is used for investigating different types of active filters obtained on the basis of modifying the main model. These modifications allow low-pass, high-pass, pass-band and stop-band polynomial second-order sections and low-pass and high-pass elliptical second-order sections to be realized. Simulation results are given in tables and in graphical form and can be used in the educational process. Modeling increases the education effectiveness by extending the interests to the studied educational material and improves the motivation of the students.