Volume 3, Number 1 (2025)

Broadband Bandpass Filter Utilizing a Multi-Mode Resonator for Wireless Communication Applications

Fatima KIOUACH and Mohammed EL GHZAOUI
1 Université Sidi Mohamed Ben Abdellah Faculté des Sciences Dhar El Mahraz-Fès
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DOI: 10.5281/zenodo.17252312
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Abstract

This paper presents a novel broadband bandpass filter that utilizes a multiple-mode resonator (MMR) for communication applications. The filter is designed using Rogers RT/duroid 5880 substrate, which has a relative permittivity of 2.2, a dielectric loss tangent of 0.0009, and a thickness of 0.8 mm. The design process was carried out using the High Frequency Structure Simulator (HFSS). The filter's overall dimensions are 14.8 x 2.9 mm². Simulated S-parameters indicate a bandwidth of 17.46 GHz (6.00 - 23.46 GHz) for the filter. It achieves a 3-dB fractional bandwidth (FBW) of 149.23%, an insertion loss of less than 0.2 dB, and a return loss greater than 48.85 dB, while maintaining a nearly constant group delay across the passband. These exceptional performance characteristics make it highly suitable for a variety of communication systems, including 5G (4–8 GHz), satellite communications, and radar systems operating in the X-band (8–12 GHz) and Ku-band (12–18 GHz).

Keywords: Broadband bandpass filter, MMR, HFSS, FBW

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How to Cite

Fatima KIOUACH and Mohammed EL GHZAOUI. (2025). Broadband Bandpass Filter Utilizing a Multi-Mode Resonator for Wireless Communication Applications. PEEAP Journal, 3(1), 1-10. https://doi.org/10.5281/zenodo.17252312

Copyright: © 2025 Fatima KIOUACH and Mohammed EL GHZAOUI et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0).