TY - JOUR AU - Kubanek, David AU - Freeborn, Todd AU - Koton, Jaroslav AU - Herencsar, Norbert PY - 2018/04/20 Y2 - 2025/01/01 TI - Evaluation of (1 + α) Fractional-Order Approximated Butterworth High-Pass and Band-Pass Filter Transfer Functions JF - Elektronika ir Elektrotechnika JA - ELEKTRON ELEKTROTECH VL - 24 IS - 2 SE - DO - 10.5755/j01.eie.24.2.20634 UR - https://eejournal.ktu.lt/index.php/elt/article/view/20634 SP - 37-41 AB - <p>This paper summarizes multiple cases of high-pass (HP) and band-pass (BP) analogue filter transfer functions with fractional order 1 &lt; (1 + <em>α</em>) &lt; 2. All HP and BP transfer functions are evaluated against the magnitude characteristics of ideal Butterworth responses when coefficients previously determined to approximate fractional-order (FO) Butterworth low-pass (LP) transfer functions are utilized. Comparisons of the simulated FO HP and BP responses against the ideal Butterworth responses are presented, with a least squares error analysis applied to determine the transfer functions that best approximate the Butterworth response for both HP and BP FO filters.</p><p>DOI: <a href="http://dx.doi.org/10.5755/j01.eie.24.2.20634">http://dx.doi.org/10.5755/j01.eie.24.2.20634</a></p> ER -