Electronically Tunable Fractional Order All Pass Filter

International Conference on Materials, Alloys and Experimental Mechanics 2017

材料科学;金属学;机械制造

Verma, Rakesh^1 ; Pandey, Neeta^1 ; Pandey, Rajeshwari^1

Department of Electronics and Communication Engineering, Delhi Technological University Delhi, Delhi, India^1

关键词: Complementary metal oxide semiconductor process;    Electronically tunable;    Fractional order;    Fractional-order filters;    Frequency and time domains;    Integer order;    Operational transconductance amplifiers (OTA);    SPICE simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/225/1/012229/pdf
DOI  :  10.1088/1757-899X/225/1/012229

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this paper, an electronically tunable fractional order all pass filter (FOAPF) based on operational transconductance amplifier (OTA) is presented. It uses two OTAs and single fractional order capacitor (FC) of non-integer order α to provide FOAPF of α order. Two different values of α, in particular 0.5 and 0.9, for FC are taken for investigation. The functionality of the proposal is verified through SPICE simulations using TSMC 0.18 μm Complementary Metal Oxide Semiconductor (CMOS) process parameters. Simulated and theoretical frequency and time domain responses are found to be in close agreement.