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该论文提出了一种分布式升压和谐波阻抗扩展的多核振荡器，工作在3.09-4.04GHz频段，实现了-138.9dBc/Hz @ 1MHz偏移的低相位噪声。通过谐波整形技术降低了LC振荡器的噪声灵敏度，解决了高速通信和雷达系统对频谱纯度的严格要求。
Zhejiang University, Hangzhou, China 1 2 The rapid development of high-speed communication and radar systems has placed stringent requirements on the spectral purity of RF oscillators. Also, maximizing battery lifetime, efficiency, or power consumption is of great concern for these systems. The oscillator is thus required to have a low phase noise as well as a high figure-of-merit (FoM). Recently, to reduce the noise sensitivity of the LC oscillator, various harmonic shaping techniques [1-3] have been reported. By setting the differential-mode (DM) [1,2] or common-mode (CM) [1,3] resonances at specific harmonic frequencies, the impulse sensitive function (ISF) is reduced, and a high FoM could be achieved. However, to meet the strict relationship between fundamental frequency and resonances, the frequency tuning plan is complex, and the frequency range is limited. Besides, the minimum phase noise performance is still limited by the reduced power supply of
Yiyang Shu1, Huizhen Jenny Qian1, Xiang Gao2, Xun Luo1
University of Electronic Science and Technology of China, Chengdu, China