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A concept technique of cascaded distributed power amplifier (DPA) with non-identical transistors and controlled inter-stage tapered impedance for wideband applications is presented. The topology solves the gain peaking effect (expansion) at cut-off frequency and guarantees sufficient stability margins. The advantages of the proposed technique are explored analytically before prototype fabrication...
A new topology for a distributed power amplifier (DPA) is presented to maximise DC-RF conversion (i.e. for high output power). The topology is featured by vectorially combined current sources when loading power transistors into distributed output and input networks using impedance termination values gathered by device load pull. To the authors' knowledge, the output power achieved in this work is...
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