Comparison of three dielectric substrates in substrate integrated waveguide at Ku-Band / Muhammad Azahar Rosdi

Substrate Integrated Waveguide (SIW) on different types of dielectric substrates has been studied in this research. SIW structure is the planar metal applied on dielectric substrates with top and bottom metal layers perforated with metalized holes. Flame retardant also known as FR-4, RT-Duroid 5880 and RT-Duroid 5870 are applied as substrates in this study. The objective of this study is to make comparison between FR-4 RT-Duroid 5880 and RT-Duroid 5870 as substrates in SIW design which to operating at Ku-band application. The SIW is simulated using HFSS software in order to finding the results. The comparison of return loss and transmission gain between three different dielectric substrates have been assessed in this paper. The result demonstrates the return loss and transmission gain for RT Duroid 5880 and RT-Duroid 5870 are better compared to FR-4 in SIW design.