2α阶可调谐分数阶带通滤波器

2019 Novel Intelligent and Leading Emerging Sciences Conference (NILES) Pub Date : 2019-10-01 DOI:10.1109/NILES.2019.8909338

Ola I. Ahmed, Heba M. Yassin, L. Said, C. Psychalinos, A. Radwan

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引用次数: 5

摘要

在这项工作中，提出了一种新的可调谐分数阶2α带通滤波器的实现。该滤波器的传递函数采用二阶连分数展开(CFE)逼近技术进行逼近。滤波器传递函数采用逆跟随前导反馈(IFLF)结构实现。运算跨导放大器(OTAs)用于实现滤波电路。此外，该滤波器可以通过改变一个偏置电流的值来调节α的值。采用UMC 0.13µm CMOS技术，利用Matlab和Cadence软件进行仿真。

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Tunable Fractional-Order Band-pass Filter of order 2α

In this work, a novel implementation of a tunable fractional-order bandpass filter of order 2α is proposed. The transfer function of the presented filter is approximated using the second-order Continued Fraction Expansion (CFE) approximation technique. The filter transfer function is realized using the Inverse Follow the Leader Feedback (IFLF) structure. The Operational Transconductance Amplifiers (OTAs) are used to implement the filter circuit. Furthermore, the proposed filter is tunable by varying the value of only one bias current, which adjust the value of α. The simulations are performed using Matlab and Cadence software with UMC 0.13µ m CMOS technology.

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2019 Novel Intelligent and Leading Emerging Sciences Conference (NILES)

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