Two-dimensional MESFET-based spatial power combiners

A spatial power combining structure capable of integrating many three terminal devices into a two-dimensional structure is described. The combiners designed and fabricated using this structure do not suffer from multimoding problems. Effective isotropic radiated powers of 5.54 W and 17.38 W at 10.03 GHz were obtained from an eight- and a sixteen-MESFET combiner, respectively. These combiners are suitable for monolithic circuit implementation.<
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