Innovative Development Approach for a High-Power 8-Way Coaxial Radial Combiner

In this work, we enable an 8-way radial combiner with a coaxial interface that revolutionizes high-power handling. Our innovative approach eliminates the need for small gaps near the feeder line, significantly boosting power capabilities, as confirmed through Spark3D software, capable of exceeding 450 KW. Exceptional performance is observed with amplitude and phase balances within ±0.4 dB and ±3 degrees, sustained across input ports throughout the operational range. The output port achieves a return loss exceeding 18 dB, ensuring an impedance bandwidth beyond 40% and stable transmission levels.