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This work reports the design of a GaAs monolithic K-band Doherty power amplifier for point-to-point microwave backhaul applications. The design of the module is described, from the choice of the architecture based on power budget and gain requirements, to the analysis of the solutions adopted. The MMIC is expected to achieve 32.5 dBm output power in the 20.8–24 GHz band, PAE higher than 32% at saturation...
An MMIC GaN Doherty power amplifier is presented. This amplifier, optimized for C-band Microwave Radio links, is designed to reach the maximum efficiency at the output power back-off level where the data distribution function of the modulated input signal has its maximum. The design approach was carried out through a careful investigation of load pull measurements at the fundamental and second harmonic,...
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