Design of a parallel coupled microstrip planar band-pass Chebyshev filter for 2.4 GHz ISM band application
by Quazi Mohmmad Alfred; Hashibul Alam
International Journal of Ultra Wideband Communications and Systems (IJUWBCS), Vol. 5, No. 1, 2022

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.

Online publication date: Thu, 07-Apr-2022

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