Kemal GuvenliSibel YenikayaMustafa SecmenGuvenli, KemalYenikaya, SibelSecmen, Mustafa2025-10-0620211392-12152029-573110.5755/j02.eie.274792-s2.0-85101533526http://dx.doi.org/10.5755/j02.eie.27479https://gcris.yasar.edu.tr/handle/123456789/7161https://doi.org/10.5755/j02.eie.27479In this paper the Microstrip-Substrate Integrated Waveguide (M-SIW) bandpass filter is designed simulated and fabricated based on the theoretical analysis. The Substrate Integrated Waveguide (SIW) highpass filter and the microstrip lowpass filter are combined in a hybrid design to achieve the M-SIW bandpass filter in the X-band. This design is more comprehensible and easier to achieve a bandpass filter at a desired frequency. The SIW highpass filter and the microstrip lowpass filter are connected in series to achieve the bandpass filter. To the measured results of the fabricated M-SIW bandpass filter the center frequency is 10.20 GHz and the bandwidth is 2.40 GHz. When the analytical and measurement results are compared the frequency change in the cut-off frequency is 6.02 % and the frequency change in the bandwidth is 8.74 % It is generally seen that analytical simulation and measurement results are compatible with each other. The M-SIW bandpass filter can be broadly used in radar Worldwide Interoperability for Microwave Access (WiMAX) and satellite technologies. The filters are simulated in Computer Simulation Technology (CST) Studio Suite.Englishinfo:eu-repo/semantics/openAccessBandpass filter, Cascaded integration, Substrate integrated waveguide, MicrostripWAVE-GUIDESubstrate Integrated WaveguideBandpass FilterMicrostripCascaded IntegrationArticle