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Notch frequency adjustable active filter using uniformly distributed RC line
Author(s)
Janchitrapongvej, Kanok
Kawejan, Viroj
Benjangkaprasert, Chawalit
Tangtisanon, Prakit
Seatia, Sorapong
Sudou, Shirou
Teramoto, Mitsuo
Date Issued
December 1, 2000
Type
Conference Paper
Abstract
The paper describes the new notch frequency adjustable type filter using uniformly distributed RC line (hereafter is called URC) with three capacitive layers. The proposed circuit consists of one URC with three capacitive (C 0, C1 and C2) layers and a single gain amplifier. α1, α2 of the circuits are used to adjust the notch tunable frequency and K is used to control the minimum stop band loss. The structure reduces an amount of circuit complexity and is simple to use for filter applications. Finally, The computer simulation results showed good agreement with theoretical values. Sensitivities are also carried out.
Citation
IEEE Asia Pacific Conference on Circuits and Systems Proceedings, 568-570, 2000