Active narrowband filter based on inductance and capacitance for low-frequency applications
Aleksander Burd , Mariusz Jarosław Suchenek
AbstractMost analog filter solutions operating in the kilohertz frequency range are based on RC elements. However, it is not possible to design a verynarrow filter (high q-factor around 1000) by using this architecture. In this article, we would like to show a filter implemented based on asimple series LC resonance circuit (consisting of just an inductor and a capacitor) and an analog circuit. The designed filter based on theseelements can be more selective than a typical active filter based on RC elements (resistor and capacitor). Performed measurements confirmed the correct operation of the filter, where the designed filter q-factor was∼591 at a resonant frequency of 4.73 kHz.
|Journal series||Review of Scientific Instruments, ISSN 0034-6748, e-ISSN 1089-7623|
|Publication size in sheets||1305.15|
|Score||= 70.0, 17-06-2020, ArticleFromJournal|
|Publication indicators||= 0; : 2016 = 0.855; : 2018 = 1.587 (2) - 2018=1.582 (5)|
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