Title :
Notch frequency adjustable active filter using uniformly distributed RC line
Author :
Janchitrapongvej, Kanok ; Kawejan, Viroj ; Benjangkaprasert, Chawalit ; Tangtisanon, Pikulkaew ; Seatia, S. ; Sudou, Shirou ; Teramoto, Mitsuo
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
The paper describes a new notch frequency adjustable type filter using a uniformly distributed RC line (URC) with three capacitive layers. The proposed circuit consists of one URC with three capacitive (C0, 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 the amount of circuit complexity and is simple to use for filter applications. Finally, computer simulation results showed good agreement with theoretical values. Sensitivity analysis is also carried out
Keywords :
active filters; circuit tuning; distributed parameter filters; low-pass filters; notch filters; sensitivity analysis; capacitive layers; circuit complexity reduction; computer simulation; gain amplifier; minimum stop band loss; notch frequency adjustable active filter; notch tunable frequency; uniformly distributed RC line; Active filters; Capacitance; Circuit simulation; Dielectrics; Electronic mail; Frequency; Information filtering; Information filters; Information technology; Paper technology;
Conference_Titel :
Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on
Conference_Location :
Tianjin
Print_ISBN :
0-7803-6253-5
DOI :
10.1109/APCCAS.2000.913563
