Hammad Y.T.Fouda Z.K.Abdalla M.A.Electrical Systems Engineering DepartmentOctober University for Modern Sciences and ArtsGizaEgypt; Electronic Engineering DepartmentMTC CollegeCairoEgypt2020-01-092020-01-0920179.78E+12https://doi.org/10.1109/APUSNCURSINRSM.2017.8073174https://ieeexplore.ieee.org/abstract/document/8073174ScopusThis paper introduces an ultra-wide band (UWB) band pass filter (BPF) with a coupled T-shaped stub. The filter's lower cut-off frequency and higher cut-off frequency are around 3.2 GHz and 9.7 GHz respectively. Moreover, the pass band exhibits two narrow notches at 5.9 GHz and 7.8 GHz which minimize the interference effects of the proposed filter with both the wireless local area network (WLAN) and SATCOM systems, respectively. The main pass band of the filter and the upper notch are implemented using a stepped impedance resonator, coupled with an inter-digital feeding line backed by defected ground structures (DGS) for coupling augmentation. The lower notch band is implemented using a stepped impedance stub that is grounded through a via hole at one end and coupled to the main filter form at the other end. The proposed filter features a small size of 0.443�1.534 ?g2. � 2017 IEEE.EnglishOctober University for Modern Sciences and Artsجامعة أكتوبر للعلوم الحديثة والآدابUniversity of Modern Sciences and ArtsMSA UniversityDual band filterFiltersMulti-mode resonator (MMR)Stub loadedWide bandDefected ground structuresFilters (for fluids)Microwave filtersNotch filtersResonatorsUltra-wideband (UWB)Wireless local area networks (WLAN)Band-pass filter (BPF)Dual-band filterInterference effectsMulti mode resonator (MMR)Stepped impedanceStepped impedance resonatorStub loadedWide-bandBandpass filtersConference Paperhttps://doi.org/10.1109/APUSNCURSINRSM.2017.8073174