Millimeter-wave integrated waveguide power dividers for power combiner and phased array applications

In this paper, we will propose integrated power dividing/ combining networks for power combiner and phased array applications. The design procedures for a Ka-band 4-port power combining network will be presented, together with the simulated and tested results. It has a total insertion loss lower than 0.25dB and phase difference less than +/-3degrees in a relative bandwidth of 4% around center frequency of 35.8GHz. The isolation between any two output ports is better than 20dB. The design and tested results for a 10-port 2-layer power combining network will also be included. Finally, we will propose a 200W Ka-band power combiner based on the integrated waveguide networks.