Güvenli, KemalSeçmen, Mustafa2024-10-252024-10-252023-01-011392-1215https://doi.org/10.5755/j02.eie.31628https://hdl.handle.net/11452/47119This study presents an original parallel connected hybrid microstrip-substrate integrated waveguide (PCHMSIW) bandstop filter. A low-pass filter implemented on a microstrip structure and a SIW-based high-pass filter are connected in parallel to each other. In this way, the aim is to obtain a bandstop filter in the novel hybrid design. The parallel connected hybrid microstrip-substrate integrated waveguide (PCHM-SIW) bandstop filter is synthesised, simulated, and produced. The effects of connecting filters in parallel are discussed. It is seen from the results of CST Studio Suite simulation that PCHM-SIW bandstop filter has a bandwidth of 2.85 GHz and a center frequency of 4.26 GHz. The frequency change rate of the center frequency between simulation and measurement is 7.02 % where it is just 3.76 % for the deviation in bandwidth. The results of the simulation and those of the measurement are close to each other. These results converge to ideal analytical results.eninfo:eu-repo/semantics/closedAccessSubstrate integrated waveguideMicrostripParallel integrationX-bandHybrid bandstop filter.Science & technologyTechnologyEngineering, electrical & electronicEngineeringArticle001167521500004263229610.5755/j02.eie.31628