期刊
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
卷 69, 期 9, 页码 3734-3738出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCSII.2022.3173608
关键词
Optimization; Impedance; Particle swarm optimization; Simulated annealing; Broadband communication; Radio frequency; Bridge circuits; Doherty like LMBA; simulated annealing particle swarm optimization; automatic PA design system; broadband
资金
- National Natural Science Foundation of China [61871075, 62001082]
- National Key Research and Development Program of China [2018YFB1802004]
In this brief, an automatic power amplifier design system based on simulated annealing particle swarm optimization algorithm is proposed. It is used for multi-objective optimization in designing broadband Doherty like load-modulated balanced amplifier. The optimization process can be automatically implemented by combining the programming environment with commercial electronic design automation software. The experimental results demonstrate the superiority of the proposed system in designing broadband Doherty like LMBA.
In this brief, an automatic power amplifier (PA) design system based on simulated annealing particle swarm optimization (SA-PSO) algorithm is proposed to perform multi-objective optimization in designing broadband Doherty like load-modulated balanced amplifier (LMBA). Specifically, by combining the programming environment with commercial electronic design automation (EDA) software, the optimization process can be implemented automatically. Then, complex and rigorous impedance trajectory aligning at different power levels can be easily obtained using the proposed optimization algorithm, demonstrating the automatic PA design system's superiority over the built-in optimizer in commercial EDA software for designing broadband Doherty like LMBA. A 2.5-3.5 GHz dual-input Doherty like LMBA is simulated and measured, showing a saturated output power of 45.4-48.2 dBm, a saturation drain efficiency of 60.7% - 69.7%, a 6 dB power back-off DE of 59.2% - 65.8%, and a 9 dB power back-off DE of 52.7% - 66.9%.
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