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- ÖZEN, MUSTAFA, 1984, et al.
(author)
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Efficient Millimeter Wave Doherty PA Design Based on a Low-Loss Combiner Synthesis Technique
- 2017
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In: IEEE Microwave and Wireless Components Letters. - 1558-1764 .- 1531-1309. ; 27:12, s. 1143-1145
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Journal article (peer-reviewed)abstract
- We report on a record-efficient 30-GHz 21-dBm differential Doherty PA designed in a 130-nm SiGe process. The output network is designed using a recently developed combiner synthesis technique. This technique enables impedance inversion and parasitic compensation to be integrated in one compact network. As a result, the combiner loss is reduced with 0.3-0.5 dB compared with a conventional Doherty combiner. The measured collector and power-added efficiencies at 6-dB back-off level are 30% and 24.3%, respectively, which further validates the advantages of the design technique.
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