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Research of Distributed Power Amplifier for Radio Transmitters of the DVB-T2 Standard

The nonlinearities of the amplitude and phase-amplitude characteristics of the amplifier with distributed amplification are investigated. Recommendations for the linearization of these characteristics are given. A model of a distributed power amplifier using real of the DVB-T2 standard is investigated. The conformity of the normalized spectrum at the output of the power amplifier with the spectral mask of the DVB-T2 standard is evaluated. Results of modeling a distributed power amplifier with the use of linearizing amplitude and phase precorrectors are presented.