• A Compact Microwave Quadrature Hybrid Coupler Using Capacitive Composite Lines and Meandered Stubs 

      Roshani, Sobhan; Yahya, Salah I.; Assaad, Maher; Chaudhary, Muhammad Akmal; Hazzazi, Fawwaz; Ghadi, Yazeed Yasin; Ali, Sarmad M.; Roshani, Saeed (Multidisciplinary Digital Publishing Institute (MDPI), 2023-12)
      In this paper, a new structure of the quadrature hybrid coupler (QHC) with compact size is proposed using capacitive composite lines and meandered open stubs. The proposed coupler works at 1.6 GHz with a 0.4 GHz bandwidth, ...