OPTIMIZED EIGHTH-ORDER ACTIVE-R BANDPASS FILTER FOR UHF RFID SYSTEMS: DESIGN, SIMULATION, AND EXPERIMENTAL VALIDATION. FJS [Internet]. 2025 Mar. 12 [cited 2025 Sep. 5];9(2):271-84. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/3127