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Active and Passive Electronic Components - Volume 2014 2014, Article ID 587932, 6 pages -

Research ArticleDepartment of Electronics Engineering, Indian School of Mines, Dhanbad, Jharkhand 826004, India

Received 7 February 2014; Revised 15 April 2014; Accepted 23 April 2014; Published 22 May 2014

Academic Editor: Jiun-Wei Horng

Copyright © 2014 Rajeev Kumar Ranjan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A new approach for the design of an active comb filter is proposed to remove the selected frequencies of various signals. The proposed filter is based on only OTAs and capacitors, hence suitable for monolithic integrated circuit implementation. The workability of the circuit is tested using PSPICE for test signals of 60, 180, 300, and 420 Hz as in ECG signal. The results are given in the paper and found to agree well with theory.

Author: Rajeev Kumar Ranjan, Surya Prasanna Yalla, Shubham Sorya, and Sajal K. Paul



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