Design And Simulation of CFOA Based Active Band Pass Filter For High Frequency RFID (Radio Frequency Identification) Technology

In today’s world RFID plays a vital role in the field of communication. RFID stands for Radio Frequency Identification. It works on Low frequency (LF, 30 - 500kHz), High frequency (HF, 10 - 15MHz ) Ultra high frequency (UHF, 850 - 950MHz, 2.4 - 2.5GHz, 5.8GHz).In this paper, the author(s) proposed a design of active band pass filter on high frequency (HF,10-15 MHz) because an active band-pass filter is needed for the RFID to reject all signal outside the band. The design of an active band pass filters is based on CFOA. For this purpose we use AD844 IC because these ICs having capability of realizing amplifiers exhibiting gainbandwidth decoupling and these are work on very higher Slew rate up to 2,000 V/μ s. The simulation result of the circuit using MULTISIM software, their ultiboard design and 3D view of the proposed circuit are also included