Compact Tri-band Half-Mode Substrate Integrated Waveguide Loaded by Meandered Slot Line for Wireless Communications

Authors

DOI:

https://doi.org/10.31272/jeasd.2797

Keywords:

Bandpass Filter, Half-Mode, Meandered Slot Line, Multi-Band, Substrate Integrated Waveguide

Abstract

This paper presents the utilization of a half-mode substrate integrated waveguide (HMSIW) cavity loaded with a meandered slot line (MSL) to design a miniaturized a 2nd order tri-band bandpass filter (BPF). The MSL was employed to independently control the operating passbands and to reduce the filter size. A systematic design procedure was used in this work to systematically calculate the theoretical parameters. Ansys EDT and ADS simulators were adopted to design and optimize the proposed structure and validate the achieved results. Simulation results showed that the proposed filter occupies an area of 0.041  at 4.7 GHz acquiring a compact size. Simulation results showed that the optimized structure operates with three passbands centred at 4.7 GHz, 7.28 GHz, and 9.36 GHz with insertion losses of 0.23 dB, 0.77 dB, and 1.8 dB, and the return losses of 20 dB, 19 dB, and 18 dB, respectively. The achieved findings showed that the proposed filter is compact and exhibits superior performance, which makes it well-suited for emerging multi-functionality wireless communication applications. The filter's size reductions and tri-band functionality make it a particularly desirable option for integration within miniaturized communication systems.

Author Biographies

Hasan Al-Darraji, Communication Engineering Department, University of Technology, Baghdad, Iraq

 HASAN AL-DARRAJI  received his BSc. In Electronic and Communication Engineering from Al-Nahrain University, Iraq in 2011. He received his High Diploma in Communication Engineering from the University of Technology, Iraq, in 2017. he is pursuing a master’s degree in wireless communication Engineering, and his current research interest includes microwave and millimeter wave devices. 

Hussam Al-Saedi, Department of Communication Engineering, University of Technology, Baghdad, Iraq

 HUSSAM AL-SAEDI (Member, IEEE) received his BSc. In Electrical Engineering and Education from the Electromechanical Engineering Department at the University of Technology, Iraq, in 2005. He received his MSc in Electronic Engineering from the School of Information Engineering at Politecnico DI Torino, Italy, in 2010. He received his Ph.D. in Electrical Engineering from the Department of Electrical and Computer Engineering at the University of Waterloo, Canada in 2018. Dr. Hussam is a faculty member in the Communication Engineering Department at the University of Technology- Iraq (UOT) since 2010. 

https://coe.uotechnology.edu.iq/index.php/ar/s/cv/453-dr-hussam-h-ali

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Key Dates

Received

2024-06-19

Revised

2026-08-08

Accepted

2026-08-08

Published Online First

2026-08-26

Published

2026-08-31

Issue

Vol. 30 No. 5 (2026): Journal of Engineering and Sustainable Development

Section

Articles

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Copyright (c) 2026 Hasan Al-Darraji, Hussam Al-Saedi (Author)

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How to Cite

Al-Darraji, H., & Al-Saedi, H. (2026). Compact Tri-band Half-Mode Substrate Integrated Waveguide Loaded by Meandered Slot Line for Wireless Communications. Journal of Engineering and Sustainable Development, 30(5), 706-715. https://doi.org/10.31272/jeasd.2797

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