Emek, MehribanSahin, Ethem IlhanIbrahim, Jamal Eldin F. M.2025-04-092025-04-0920251996-194410.3390/ma18040863http://dx.doi.org/10.3390/ma18040863https://hdl.handle.net/20.500.14669/4306This research investigates the synthesis and characterization of GdMnO3/chopped strands composites using the conventional oxide mixing technique. A single-phase GdMnO3 compound was successfully formed through sintering at 1350 degrees C for 20 h. Structural analysis using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) confirmed phase purity and uniform grain morphology. The microwave shielding effectiveness of GdMnO3/chopped strands composites was evaluated within the 6.5-17.5 GHz frequency range using a network analyzer (NA). The GdMnO3/chopped strands composite with a 60-40% weight ratio exhibited superior shielding performance, achieving a minimum shielding effectiveness of -35.61 dB at 6.9 GHz, while the 80-20% composite reached -32.54 dB at 16.74 GHz. Both compositions demonstrated shielding effect values below -10 dB across wide frequency bands, with significant attenuation below -20 dB at various GHz ranges. The study demonstrates that by adjusting the content of the components in the samples, the microwave shielding effect performance of the GdMnO3/chopped strands composites can be easily controlled to meet the requirements of specific frequency bands. These findings highlight the potential of GdMnO3-based composites for tailored microwave shielding applications, particularly in the military, aerospace, and telecommunication industries.eninfo:eu-repo/semantics/openAccessshielding effectGdMnO3mixed oxidechopped strandsmatrix compositesArticle44000438618WOS:001430909700001