Dynamics of a fractional-order Colpitts oscillator and its FPGA implementation Huihai Wang, Donglin Zhan, Xianming Wu and Shaobo He Eur. Phys. J. Spec. Top., 231 11-12 (2022) 2467-2476 Published online: 16 April 2022 DOI: 10.1140/epjs/s11734-022-00487-9