Title: Design of a parallel coupled microstrip planar band-pass Chebyshev filter for 2.4 GHz ISM band application

Authors: Quazi Mohmmad Alfred; Hashibul Alam

Addresses: Department of Electronics and Communication Engineering, Aliah University, Kolkata, India ' Department of Electronics and Communication Engineering, Aliah University, Kolkata, India

Abstract: This paper demonstrates the design, simulation and fabrication of edge-coupled microstrip band-pass filter (BPF) at centre frequency around 2.4 GHz. It is very much useful on 2.4 GHz ISM band wireless communications, e.g., GPS, WLAN Bluetooth and WiMax applications. The filter is built on relatively low-cost FR-4 substrate. The theoretically considered range of frequency 2.3 to 2.5 GHz and bandwidth is 200 MHz and Chebyshev filter response with 0.5 dB ripple in pass-band is preferred. The simulation values of cut-off frequency are 2.30 and 2.50 GHz with centre frequency 2.4 GHz and measured values is 2.302 and 2.502 GHz with centre frequency 2.402 GHz. After fabrication, the measurement results show the good agreement with theoretical consideration and simulation results.

Keywords: band-pass filter; BPF; Chebyshev filter response; microstrip; parallel coupled line; edge-coupled; even and odd mode impedance.

DOI: 10.1504/IJUWBCS.2022.121787

International Journal of Ultra Wideband Communications and Systems, 2022 Vol.5 No.1, pp.35 - 39

Received: 13 Feb 2020
Accepted: 08 Sep 2020

Published online: 07 Apr 2022 *

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