Design of Power Divider for Groove Gap Waveguide at Millimeter Wave Spectrum

In this paper, design of a passive power divider using Groove Gap Waveguide (GGW) is presented for mm-wave frequency spectrum (28 GHz sub band) for 5G and beyond applications. A one-to-two way power divider is initially designed by modifying T-junction with three matching pins. Subsequently, designed T-junction is scaled for one-to-four way passive power divider. Simulation results are quite promising and reflection coefficient less than 20 dB is achieved for frequency spectrum from 24.592 GHz to 34.259 GHz for one-to-two way power divider, and 26.265 GHz to 32.981 GHz for one-to-four way power divider. Dimensions of GGW are selected as per standardized rectangular waveguide for integration and practical utilization for 5G applications at 28 GHz.