Mezaal, Yaqeen Sabah2025-02-062025-02-0620220920-50711569-3937https://doi.org/10.1080/09205071.2021.1970029https://hdl.handle.net/20.500.12939/5207In this study, two new printed slot antennas have been simulated and fabricated using a single layer of FR4 substrate for modern wireless applications. The first printed slot antenna with etched stair-step topology in the ground plane is proposed to achieve the single-band operation. This topology is based on two components of asymmetrical step-impedance resonator (SIR) and one component of symmetrical SIR. The first designed printed slot antenna satis?es the requirements of WLAN applications at 5.75 GHz. The second printed slot antenna is a developed version of the first one with one inserted component of symmetrical SIR and one asymmetrical SIR component to be operated as a multiband antenna applicable for WiMAX, WLAN, and X-band downlink satellite systems at 3.5, 5.75, and 7.75 GHz, respectively. The proposed antennas have small sizes, and competitive electrical specifications than many reported SIR and non-SIR antennas in the literature.eninfo:eu-repo/semantics/closedAccessPrinted slot antennasstair-step topologySIR techniquecompactnessArticle10.1080/09205071.2021.19700293633884062-s2.0-85113916826Q2WOS:000691467100001Q4