Abstract:Abstract-This paper presents a general measurement based design method for outphasing amplifiers. Both isolated and nonisolated combiners are designed based on individual PA loadpull measurements, in order to load modulate two 0.15µm GaN MMIC power amplifiers at 10.1 GHz. Load modulation measurements are performed at ports internal to the PA, with the inclusion of couplers in the combiner and a four-port LSNA, to gain insight into the dynamics of load modulation during outphasing operation. Both outphasing sys… Show more
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