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In the letter experimental results are presented which show that distributed amplifiers can be used for power applications. These results are verified by comparing an analytic model predicted using SPICE 2 simulation with measurements between 0.3 and 12 GHz. It appears that a very broad band can be achieved and that the distributed amplifiers keep their self matching properties even under large-signal operation. Distributed-amplifier characteristics, under small-signal operations, are now well known.1Â¿4 However, recent improvements in GaAs FET technology have created new prospects in large-signal and high-frequency conditions. To our knowledge, although some experimental results have been published3, no theoretical study has been carried out for large-signal conditions. The letter provides such a study.