A Comprehensive Review of Substrate Integrated Waveguide (SIW) Technology in the Development of 5G Microwave Components
Authors:
Mansour H. Almalki 1*, Dr. Mohammad H. Awedh 2, Dr. Mohammed N. Ajour 3
Abstract: This research aims to study and analyze the theoretical and technical foundations related to the design and development of microwave components used in fifth generation (5G) systems. This research focuses on Substrate Integrated Waveguide (SIW) technology, one of the most promising technologies in the field of modern communications. The importance of this research is highlighted in light of the growing need to improve the performance and efficiency of components used in wireless communication networks, especially with the development of high frequency requirements and the global transition to a fifth-generation network infrastructure. The research addresses the problem of the limited performance of some traditional components (such as microstrip lines and rectangular waveguides) at high frequencies, in terms of signal loss, narrow bandwidth, and the difficulty of integration into printed circuit board (PCB) systems. The research methodology relies on analyzing theoretical studies and comparing models presented in the scientific literature, without resorting to field experiments, with the aim of extracting the fundamental performance differences between conventional components and components built using SIW technology. The research concludes with recommendations for combining SIW with modern technologies such as massive MIMO and beamforming to overcome traditional performance limitations and achieve the highest possible efficiency in future 5G networks. It also demonstrates the scientific and technical value of using SIW technology in 5G environments. Keywords: 5G Microwave Components, Substrate Integrated Waveguide, Technology 
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Academic Journal of Research and Scientific Publishing
doi.org/10.52132/Ajrsp.e.2025.74.1 