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Bandwidth Enhanced Equal-Split Planar Knochel-Mayer Power Divider Capable of High Power Handling for Antenna Feed Applications

A planar 2-way equal-split in-phase power divider/combiner with broadband characteristics and capable of high power handling is presented in this paper. The proposed design uses a modified Knochel-Mayer structure to enable heatsinking and design flexibility of the isolation resistors, while extending the bandwidth of the design. A 2-way power divider/combiner prototype operating in the S-band is designed and fabricated in microstrip, exhibiting a bandwidth of 50% and an average power handling capability of 10 W. The measured results of the prototype show good agreement with full-wave EM simulation and the power handling capability was experimentally verified.