Cengiz M.F.Allam A.M.M.A.Fawzy D.E.Ghanem M.G.Helala M.A.2023-06-162023-06-1620229.80E+122157-0221https://doi.org/10.1109/ICUMT57764.2022.9943323https://hdl.handle.net/20.500.14365/355714th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2022 -- 11 October 2022 through 13 October 2022 -- 184494This study presents a new 4×1 rectangular slot antenna array based on ridge gap waveguide (RGW) technology for the use of D-band applications. The operating frequency of the proposed array antenna is 140.9-157.7 GHz. The Finite Integration Time-Domain (FITD) method is used to optimize the design parameters. Four rectangular slots are placed side by side and the RGW feeding network is used to feed them with minimal dispersion. Quarter-wavelength transformers are used to match the source to the load composed of the antenna array and feeding network. The antenna overall efficiency is around 95%. The antenna array's maximum gain is about 10 dBi, compared to the single antenna's gain of roughly 7 dBi. © 2022 IEEE.eninfo:eu-repo/semantics/closedAccessD-BandMm-WaveRGWSlot Array AntennaAntenna feedersMicrowave antennasMillimeter wavesSlot antennasTime domain analysisUltra-wideband (UWB)D-bandDesign and implementationsGap waveguidesMm wavesRectangular slot antennasRidge gap waveguideSlot antenna arraysSlot array antennasUWB antennaWaveguide technologyAntenna arraysConference Object10.1109/ICUMT57764.2022.99433232-s2.0-85142700117