A Planar Compatible Traveling-Wave Waveguide-Based Power Divider/Combiner

The operation of a planar compatible traveling-wave power divider and combiner structure is presented. Design guidelines of the scalable structure are presented as are simulated and measured results of two- and four-way devices at -band frequencies. A transmission line model of the divider/combiner is presented to provide additional insight into its operation. The measured 15-dB return-loss bandwidth of the structure is on the order of 20% with a power combining efficiency as high as 90% around the design frequency. The measured structure exhibited a 15-dB return-loss bandwidth of 15% with a power combining efficiency of approximately 80%.