Using a Half-mode SIW Loaded with Slots to Realize a Compact UWB Bandpass Filter

Authors

  • Hussein Al-Jeshami University of Technology - Iraq, Baghdad, Iraq
  • Hussam Al-Saedi University of Technology - Iraq, Baghdad, Iraq
  • Mohammed F. Hasan University of Technology - Iraq, Baghdad, Iraq
  • Halah I. Khani University of Technology - Iraq, Baghdad, Iraq
  • Muhannad Y. Muhsin University of Technology - Iraq, Baghdad, Iraq
  • Wael M. Abdel-Wahab University of Waterloo, Waterloo, Canad

DOI:

https://doi.org/10.26636/jtit.2025.2.2085

Keywords:

compact filter, half-mode SIW, notch response, ultra-wideband

Abstract

This paper presents an ultra-wideband bandpass filter (UWB-BPF) based on a half-mode substrate-integrated waveguide (HMSIW) structure with a passband that spans from 4.12 to 11 GHz and has a center frequency of 7.56 GHz with a fractional bandwidth of 91%. Less than 0.3 dB of insertion loss was achieved through the passband, with the return loss being better than 19 dB. Two transmission zeros were generated, contributing to the 5.24 GHz out-of-band rejection. The proposed filter is compact, making it a good choice for space-constrained systems. In addition, a notch response has been utilized to comply with standards issued by applicable regulatory bodies, by blocking some bands located in the passband. Ansys EDT software was used to implement the design and determine the response of the proposed structure, while Keysight ADS was used to validate the results.

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Cover page 2/2025

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Published

2025-06-30

Issue

No. 2 (2025)

Section

ARTICLES FROM THIS ISSUE

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Copyright (c) 2025 Hussein Al-Jeshami, Hussam Al-Saedi, Mohammed F. Hasan, Halah I. Khani, Muhannad Y. Muhsin, Wael M. Abdel-Wahab

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
H. . Al-Jeshami, H. . Al-Saedi, M. F. . Hasan, H. I. . Khani, M. Y. Muhsin, and W. M. . Abdel-Wahab, “Using a Half-mode SIW Loaded with Slots to Realize a Compact UWB Bandpass Filter”, JTIT, vol. 100, no. 2, pp. 1–8, Jun. 2025, doi: 10.26636/jtit.2025.2.2085.