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1 Journal of Telecommunications and Information Technology

1 2023

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Design of a Fractional Order Low-pass Filter Using a Diﬀerential Voltage Current Conveyor

Krishna Battula Tirumala, Janarthanan Midhunchakkaravathy

Journal of Telecommunications and Information Technology

2023

nr 2

17--21

In this paper, an active implementation of a diﬀerential voltage current conveyor (DVCC) based on a low-pass ﬁlter operating in the fractional order domain is presented. The transfer function for a fractional order system is dependent on the rational approximation of sα. Diﬀerent methods used for calculating the rational approximation, including Carlson, Elkhazalil, and curve ﬁtting, are evaluated here. Finally, to validate the theoretical results, a fractional order Butterworth ﬁlter is simulated in the Pspice environment using the 0.5 micrometer CMOS technology with an R-C network-based fractional order capacitor. Additionally, using the Monte Carlo analysis, the impact of current and voltage faults on DVCC response is investigated. It has been inferred that realization with a wider bandwidth is possible.