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本文提出了一种用于5G低地球轨道卫星应用的无纹波降压转换器，解决了卫星电源管理在低功耗和高效长距离无线传输方面的挑战。通过实现低于-21.94dB的误差矢量幅度（EVM），该转换器显著降低了输出纹波，提升了射频信号质量。
Hsing-Yen Tsai1, Rong-Bin Guo1, Ke-Horng Chen1, Kuo-Lin Zeng1,2, Ying-Hsi Lin3, Shian-Ru Lin3, Tsung-Yen Tsai3 National Yang Ming Chiao Tung University, Hsinchu, Taiwan Chip-GaN Power Semiconductor, Hsinchu, Taiwan 3 Realtek Semiconductor, Hsinchu, Taiwan 1 2 The rise of non-terrestrial networks and 5G NR has brought low earth orbit (LEO) sattelites to the forefront as the next most favored space application. However, due to the constraints of solar systems and the need for efficient long-distance wireless transmission, the power management of LEO systems faces the challenge of low power consumption and guaranteeing high-quality RF circuit transmission (error vector magnitude (EVM)<–21.94dB). To address the shortcoming of the two-step conversion (from high voltage to 5V, then 1V) in traditional power management systems, batteries in LEO systems with a nominal 21.6V to 33V range need to be converted directly to 1V
Yi-Hsiang Kao1, Jie-Lin Wu1, Wei-Cheng Huang1, Hui-Hsuan Chang1,