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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/LTC18022" target="_blank" >LTC18022: Analogové fraktální systémy, jejich návrh a analýza</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Advanced Research

ISSN

2090-1232

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

9/2020

Stát vydavatele periodika

EG - Egyptská arabská republika

Počet stran výsledku

18

Strana od-do

257-274

Kód UT WoS článku

000568317000011

EID výsledku v databázi Scopus

2-s2.0-85088142016