Reconnection-less Reconfigurable Low-Pass Filtering Topology Suitable for Higher-Order Fractional-Order Design

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F20%3APU136700" target="_blank" >RIV/00216305:26220/20:PU136700 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2090123220301314" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2090123220301314</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jare.2020.06.022" target="_blank" >10.1016/j.jare.2020.06.022</a>

Result language

angličtina

Original language name

Reconnection-less Reconfigurable Low-Pass Filtering Topology Suitable for Higher-Order Fractional-Order Design

Original language description

The paper discusses a new design of a current–mode reconnection–less reconfigurable fractional–order (FO) low–pass filter of various orders. The filtering structure is based on a 4th–order leap–frog topology using operational transconductance amplifiers as basic building blocks. The resulting order of the filter is given by the setting of current gains (allowing the reconnection–less reconfiguration) alongside with the values of the fractional–order capacitors realized by the RC ladder networks. For this purpose, RC ladder networks of orders 0.3, 0.4, 0.5, 0.6 and 0.7 have been designed. The fractional–order form of the filter contains from one up to four FO capacitors (remaining capacitors (if there are any) are of integer–order) allowing to obtain low–pass functions of order of 3+α, 2+α, 1+α, 2+α+β, 1+α+β, α+β, 1+α+β+γ, α+β+γ and α+β+γ+δ. The proposed filter offers a wide variety of possible order combinations with an increasing degree of freedom as the number of fractional–order capacitors within the structure increases. The proposal is supported by the PSpice simulations of magnitude and phase characteristics, pole frequency adjustment and stability analysis. Moreover, the experimental measurements of the implemented filter were carried out and compared with the simulation results. The possibility of the electronic control of the fractional order is also discussed and presented.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20201 - Electrical and electronic engineering

Project

<a href="/en/project/LTC18022" target="_blank" >LTC18022: Analogue fractional systems, their synthesis and analysis</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Advanced Research

ISSN

2090-1232

e-ISSN

—

Volume of the periodical

25

Issue of the periodical within the volume

9/2020

Country of publishing house

EG - EGYPT

Number of pages

18

Pages from-to

257-274

UT code for WoS article

000568317000011

EID of the result in the Scopus database

2-s2.0-85088142016