Compact four-way microwave power combiner for high power applications

An ultra compact 4-way high-power microwave (HPM) waveguide combiner to realize coherent microwave combination was theoretically designed and proof-of-principle experimentally tested. The theoretical and experimental S-parameters are basically consistent with each other, and the multi-channels of HPM combiner are effectively isolated with each other to avoid the inter-modulating among the HPM sources. The C-band HPM experiment was carried out, and the power capacity of the HPM combiner was demonstrated to reach multi-gigawatts. (C) 2014 AIP Publishing LLC.