Abstract
This paper theoretically analyzes the network phase solution space under Doherty, Outphasing, and hybrid modes. A dual-input wideband Doherty-Outphasing power amplifier (DOPA) design method is proposed. This method can ensure that the output back-off (OBO) amount is further increased based on the OBO amount of Doherty power amplifier. To prove the reliability of the proposed method, a hybrid DOPA power amplifier in the band of 1.7–2.4 GHz with an OBO amount of 12 dB is designed. The experimental results also show that the output power of the hybrid DOPA is 48.6–49.5 dBm in the band of 1.7–2.3 GHz, and the saturation efficiency is 57%–63%. The efficiency at 12 dB, 9 dB and 6 dB OBO is 42%–50%, 46%–59% and 50%–63% respectively. The digital pre-distortion correction is carried out at 1.8, 2.1 and 2.3 GHz frequency points, and the adjacent channel power ratio is lower than -47.7 dBc. Simulation and experiment results can verify the effectiveness and correctness of the proposed method. To the best of our knowledge, it is the first time to achieve such a wide bandwidth to the hybrid DOPA with the proposed design method.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: AEUE - International Journal of Electronics and Communications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
